Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Nashrieh Shimi va Mohandesi Shimi Iran
1022-7768
37
3
2018
11
22
The Importance and Application of Nano Metal-Organic Frameworks to Absorb, Store and Release of Methane
1
11
FA
Amir Reza
Abbasi
Faculty of Chemistry, Razi University, Kermanshah 67149, I.R. IRAN
abbasi.amirreza@gmail.com
Hossein
Ghasempour
Department of Chemistry, Faculty of Sciences, Tarbiat Modares University, P.O. Box 14115-175, Tehran, I.R. IRAN
h.ghasempoor92@gmail.com
Mohammad Esmaeil
Ebrahimzadeh
Mazandaran Gas Company, Mazandaran, Sari, I.R. IRAN
m.s.ebrahimzadeh@gmail.com
Fateme
Babaei
Mazandaran Gas Company, Mazandaran, Sari, I.R. IRAN
fa.babaei59@gmail.com
Mojtaba
Khanpour Matikolaei
Mazandaran Gas Company, Mazandaran, Sari, I.R. IRAN
khanpour.m@gmail.com
Ali
Morsali
Department of Chemistry, Faculty of Sciences, Tarbiat Modares University, P.O. Box 14115-175, Tehran, I.R. IRAN
morsali_a@yahoo.com
<em>Natural gas, whose main component is methane, is an attractive fuel for vehicular applications. Metal-Organic Frameworks (MOFs) have received significant attention as a new class of adsorbents for natural gas storage. MOFs are typically constructed by connecting Secondary Building Units (SBUs) consist of metal ions with organic connectors to produce various networks. They are completely regular, have high porosity, and highly designable frameworks. These properties make MOFs suitable for various applications especially in trap and adsorption affinities for various compounds. Evaluation of these materials has focused on adsorption of pure methane, although commercial natural gas also contains small amounts of higher hydrocarbons such as ethane and propane, which adsorb more strongly than methane. In this view, we provide an overview of the current status of metal–organic frameworks for methane storage.</em>
Metal-organic frameworks,Storage,Methane,Nano,Porosity
https://www.nsmsi.ir/article_29042.html
https://www.nsmsi.ir/article_29042_98785d45e843828b07275a45a0e0f050.pdf
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Nashrieh Shimi va Mohandesi Shimi Iran
1022-7768
37
3
2018
11
22
Study of Structural, Surface and Magnetic Properties of Carbon Nanotubes / Iron Oxides Nanocomposites
13
26
FA
Maliheh
Pashai Gatabi
Soid State Physics Department, University of Mazandaran, P.O. Box: 47416-95447, Babolsar, I.R. IRAN
pashai.gatabi.m@gmail.com
Hossain
Milani Moghaddam
Soid State Physics Department, University of Mazandaran, P.O. Box: 47416-95447, Babolsar, I.R. IRAN
milani@umz.ac.ir
Mohsen
Ghorbani
Chemical Engineering Faculty, Babol Noshirvani University of Technology, Babol, I.R. IRAN
mohsenghorbani_mgh@yahoo.com
<em>In this study, carbon nanotubes coated with iron oxide nanoparticles were synthesized </em><em>by a co-deposited simultaneous method with initial salt ratios of 2 to 1 and 4 to 1. In order to study the structural, surface and magnetic properties, electron microscopy, magnetic residue, infrared Fourier transform, Raman, x-ray diffraction, nitrogen adsorption-desorption, and zero-point calculations were studied. The results obtained from the structural analysis indicate that iron oxide nanoparticles with 12.2 nm and 13.5 nm are in the range of 2 to 1 and 4 to 1 on carbon nanotubes, respectively. Also, for these proportions, the behavior of superparamagnetic with saturated magnetization was 11.48 mg/g and 27.97 emu/g, respectively. The results showed that, by choosing the right method and optimizing the effective parameters in the method of synthesis of magnetic carbon nanotubes, it is possible to directly change their surface properties and, as a result, nanostructures with specific surface properties in the “Wide” range of laboratory conditions.</em>
Nanocomposite,Iron oxide nanoparticles,Carbon nanotubes,Chemical precipitation,In-situ coprecipitation
https://www.nsmsi.ir/article_28240.html
https://www.nsmsi.ir/article_28240_0368ebf9a789399e28f2877c8baa9a93.pdf
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Nashrieh Shimi va Mohandesi Shimi Iran
1022-7768
37
3
2018
11
22
Optimizing the Template Free Fabrication Approach for Synthesis of ZSM-5 Nanozeolite
27
36
FA
Nlioofar
Rahmani
Chemistry Department, Faculty of Science, Imam Khomeini International University, Qazvin, I.R. IRAN
niloofarahmani71@gmail.com
Amir
Bagheri Garmarudi
Chemistry Department, Faculty of Science, Imam Khomeini International University, Qazvin, I.R. IRAN
bagheri@sci.ikiu.ac.ir
Mohammadreza
Khanmohammadi Khorrami
Chemistry Department, Faculty of Science, Imam Khomeini International University, Qazvin, I.R. IRAN
mkhanmohammadi@sci.ikiu.ac.ir
<em>In this study, nanosized ZSM-5 zeolite was synthesized for examining of optimum conditions of synthesis and the formation of zeolite ZSM-5 under different conditions based on two-level factorial experimental design, by hydrothermal method. Samples were synthesized without organic template and different conditions including the molar composition of the synthetic gel </em><em>and reaction time were studied in a wide range. Then the samples for studying the formation of zeolite</em><em> ZSM-5 were analyzed by X-ray diffraction and the results were compared with each other to obtain optimal conditions. Purpose of optimizing the assay was to achieve nanosized ZSM-5 zeolite with appropriate morphology and stability. Characterization of nanoparticles was performed by the Scanning electron microscope, Transmission electron microscope Fourier transform infrared spectroscopy and thermal gravimetric analysis. According to the two-level factorial experiment design, optimal conditions for the synthesis of nano-zeolite ZSM-5 include: Na<sub>2</sub>O/SiO<sub>2</sub>=0.2،SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3 </sub>=60 ،H<sub>2</sub>O/SiO<sub>2</sub>=53, Aging time=72h. Scanning electron microscopy showed that the smallest and the most optimal of particle size is approximately 44 nm and Fourier-transform infrared spectroscopy and Thermal gravimetric analysis confirmed the synthesis of nano-zeolite ZSM-5.</em>
Nano zeolite,ZSM-5,Optimization,Experimental design
https://www.nsmsi.ir/article_28236.html
https://www.nsmsi.ir/article_28236_6f6eee7e92534055b5783be710731c58.pdf
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Nashrieh Shimi va Mohandesi Shimi Iran
1022-7768
37
3
2018
11
22
Preparation of Cubic Micro Particles from Poly (phenylene oxide)-block-poly (phenyl isocyanate) Copolymer
37
49
FA
Mohammad Ali
Semsarzadeh
Polymer Group, Chemical Engineering Department, Tarbiat Modares University, P.O.Box: 14155/143, Tehran, I.R. IRAN
semsarzadeh@modares.ac.ir
Arezoo
Sh. Dadkhah
Polymer Group, Chemical Engineering Department, Tarbiat Modares University, P.O.Box: 14155/143, Tehran, I.R. IRAN
arezoo.shdadkhah@modares.ac.ir
<em>In this research, poly (ether)-block-poly (amide) copolymer was synthesized from polyphenylene oxide (PPO) and phenyl isocyanate (PIC) via coordination polymerization </em><em>in the presence of TiCl<sub>4</sub> and dried toluene. The effects of temperature, reaction time, TiCl<sub>4</sub>/PPO ratio,</em><em> the concentration of monomer and toluene as a solvent on the yield of copolymerization </em><em>were investigated. Chemical structure of block copolymer was confirmed by Hydrogen Nuclear Magnetic</em><em> Resonance (<sup>1</sup>H NMR) spectroscopy. <sup>1</sup>H NMR results were in good agreement with gel permeation chromatography (GPC). Molecular weight and molecular weight distribution of the copolymer are 5806 g/mol and 1.25, respectively. Thermal properties of the copolymer were studied </em><em>by Differential Scanning Calorimetry (DSC) measurement, in which the glass transition (T<sub>g</sub>) of amide and ether blocks were 84</em><em>˚</em><em>C and 164</em><em>˚</em><em>C, respectively. The freeze-grinding method was used for</em><em> the preparation </em><em>of particles (grinding time = 2 hours). Scanning Electron Microscope (SEM) and </em><em>Transmission Electron</em><em> Microscopy </em><em>(TEM) images exhibited micrometric and nano metric particles with regular and cubic structure. Obtained results from X-Ray Diffraction (XRD) showed that synthesized copolymer particles have a simple cubic crystal lattice of [100], [110], and [111].</em>
Ether-Amide copolymer,Phenylene oxide,Phenyl isocyanate,Particles,Cubic
https://www.nsmsi.ir/article_28245.html
https://www.nsmsi.ir/article_28245_8110adaed105e821dabfa99207314601.pdf
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Nashrieh Shimi va Mohandesi Shimi Iran
1022-7768
37
3
2018
11
22
Photocatalytic Oxidation of Sulfides by TiO2@GO-CdSe Nanocomposite Modified with CdS
51
58
FA
Sajjad
Mohebbi
0000-0002-7932-5718
Department of Chemistry, University of Kurdistan, P.O. Box 66175-416, Sanandaj , I.R. IRAN
sajadmohebi@yahoo.com
Farnaz
Hosseini
Department of Chemistry, University of Kurdistan, P.O. Box 66175-416, Sanandaj , I.R. IRAN
f.hossieni@sci.uok.ac.ir
<em>In this study, aerobic photocatalytic oxidation of sulfides by </em><em>TiO<sub>2</sub>@GO-CdSe and TiO<sub>2</sub>@GO-CdSeS nanocomposites under visible light irradiation were investigated. The nanocomposites </em><em>were supported on the graphene oxide nano sheets via in situ syntheses of CdSe and TiO<sub>2</sub> and then modified by CdSthrough a hydrothermal method. The nanocomposites were characterized by SEM imaging, XRD and EDAX analyses. The size of nanocomposites </em><em>were distributed in a narrow range of 50-65 and 60-75 nm for </em><em>TiO<sub>2</sub>@GO-CdSe </em><em>and </em><em>TiO<sub>2</sub>@GO-CdSeS</em><em>,</em><em> respectively. The yield of photocatalytic oxidation process was obtained 65% for </em><em>TiO<sub>2</sub>@GO-CdSe</em><em>S in optimized conditions. These nanocomposites show high activity under the mild condition and Visible light irradiation. The photocatalysts were recycled and reused 8 times without a significant decrease in activities.</em>
Graphene Oxide Nanocomposite,Modified titanium dioxide,Photo-oxidation,photocatalyst,Sulfide
https://www.nsmsi.ir/article_28591.html
https://www.nsmsi.ir/article_28591_453173af0bc20854dc1a056a2cd35310.pdf
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Nashrieh Shimi va Mohandesi Shimi Iran
1022-7768
37
3
2018
11
22
Nano-Catalytic Synthesis of Novel Phosphonic Acids Containing of β-naphthol Group
59
69
FA
Zahra
Homayoun
Department of Chemistry, Marvdasht Branch, Islamic Azad University, Marvdasht, I.R. IRAN
homayoun.zahra1987@gmail.com
Soheila
Ghassamipour
Department of Chemistry, Marvdasht Branch, Islamic Azad University, Marvdasht, I.R. IRAN
soheilaghassamipour@miau.ac.ir
<em>In </em><em>presented research </em><em>work, novel organophosphorus acids containing β-naphthol group was synthesized by one-pot three-component domino-Knoevenagel- Phospha-Michael reaction between β-naphthol, aromatic aldehydes and triethylphosphite under green and environmentally conditions.</em><em> Multi-walled carbon nanotubes containing sulfamic acid functional group were used as a heterogeneous catalyst for decreasing reaction time, increasing yield and the completed of the reaction. The advantages of this synthesis are recyclability and reusability </em><em>of nano-catalyst, simplicity, utility, suitable reaction time and good yields. Their structures of product</em><em>s were confirmed by Nuclear Magnetic Resonance </em><em>spectroscopy </em><em>of hydrogen, carbon, and phosphorus and the melting point of solid products was reported.</em>
Organophosphonic acids,Functionalized carbon nanotube,Triethyl phosphite,domino-Knoevenagel-Phospha-Michael reaction
https://www.nsmsi.ir/article_28587.html
https://www.nsmsi.ir/article_28587_22f3a0133abc55c0ae28c22dee368e66.pdf
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Nashrieh Shimi va Mohandesi Shimi Iran
1022-7768
37
3
2018
11
22
Synthesis of Fe3O4/Graphene Nanocomposite and Investigation of Their Catalytic Activity on Thermal Decomposition of Ammonium Perchlorate Particles
71
79
FA
Seyed Ghorban
Hosseini
Department of Chemistry, Malek Ashtar University of Technology, P.O. Box 16765-3454 Tehran, I.R. IRAN
hoseinitol@yahoo.com
Zahra
Khodadaipoor
Department of Chemistry, Malek Ashtar University of Technology, P.O. Box 16765-3454 Tehran, I.R. IRAN
zahrakhodadadi10@yahoo.com
<em>In this study, Fe<sub>3</sub>O<sub>4</sub>/ graphene nanocomposite was prepared by a gas/liquid interface reaction and characterized by XRD, IR and SEM techniques. Transmission electron microscope images revealed that the ultrafine Fe<sub>3</sub>O<sub>4</sub> NPs are homogeneously deposited on the supporting </em><em>G-O sheets and graphene oxide sheets could hinder the aggregation of Fe<sub>3</sub>O<sub>4</sub> NPs. Then, the catalytic</em><em> performance of the synthesized material on the thermal decomposition of ammonium perchlorate (AP) was investigated by ThermoGravimetry Analysis (TGA) and differential scanning calorimetry (DSC) techniques. The results of the thermal analysis showed that the composites exhibit better catalytic effect for the thermal decomposition of ammonium perchlorate than Fe<sub>3</sub>O<sub>4</sub> NPs due to the combination of graphene sheets and Fe<sub>3</sub>O<sub>4</sub> NPs.</em>
Fe3O4,Graphene,Ammonium perchlorate,Thermal decomposition
https://www.nsmsi.ir/article_28585.html
https://www.nsmsi.ir/article_28585_8a4528d3f3a3c2a5ac98470b22afd175.pdf
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Nashrieh Shimi va Mohandesi Shimi Iran
1022-7768
37
3
2018
11
22
Influence of Modified Alumina Nanoparticles on the Performance of Polymeric Membrane in Reduction of Water Hardness
81
95
FA
Negin
Ghaemi
0000-0002-3406-290X
Department of Chemical Engineering, Kermanshah University of Technology, Kermanshah, I.R. IRAN
negin_ghaemi@yahoo.com
Parisa
Daraei
Department of Chemical Engineering, Kermanshah University of Technology, Kermanshah, I.R. IRAN
parisa_daraey@yahoo.com
Shiva
Palani
Department of Chemical Engineering, Kermanshah University of Technology, Kermanshah, I.R. IRAN
sh.palani@yahoo.com
<em>Innovative nanofiller produced by poly(acrylic acid) attachment onto alumina nanoparticles was embedded into the polysulfone membrane. The efficiency of the nanofiltration membrane was investigated for hardness removal from water. Considering the feed concentration and pH as well as nanoparticle content, the optimization of process variables was performed using response surface methodology (RSM). The negative charge of the membrane surface caused by carboxyl functional groups on alumina nanoparticles elevated the cation removal efficiency from water. Statistical analysis revealed that 0.5 wt.% nanoparticles in the membrane matrix along with a high concentration of Mg<sup>2+</sup> ions in water at pH 6.84 were the optimum condition to achieve the highest water softening efficiency. The predicted model well matched with experimental results suggesting a practical preparation and process conditions for achieving a water-softener membrane. Furthermore, the membrane permeability of prepared nanocomposite membranes was improved </em><em>to higher amounts due to the induced changes in membrane bulk structure and surface hydrophilicity.</em>
Nanofiltration membrane,Alumina nanoparticles,Poly(acrylic acid),Water softening,Response Surface Method (RSM)
https://www.nsmsi.ir/article_28584.html
https://www.nsmsi.ir/article_28584_519b0969e30d1cbe3c46c69062adc27a.pdf
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Nashrieh Shimi va Mohandesi Shimi Iran
1022-7768
37
3
2018
11
22
Synthesis of N-Aryl Amine Derivatives Using Copper Salts Catalysts
97
108
FA
Magid
Ghazanfarpour Darjani
Young Research and Elite Club, Islamic Azad University, Buinzahra Branch, Buinzahra, I.R. IRAN
m.ghazanfarpour@modares.ac.ir
Mahboobeh
Babapour-Kooshalshahi
Young Research and Elite Club, Islamic Azad University, Buinzahra Branch, Buinzahra, I.R. IRAN
mahboobehbabapour@yahoo.com
Leila
Mohamad-Alikhani
Young Research and Elite Club, Islamic Azad University, Buinzahra Branch, Buinzahra, I.R. IRAN
majid_polimer@yahoo.com
<em>Unsymmetrical piperazines are key constituents of many anti-psychotic pharmaceuticals and bioactive compounds. Given that the selective introduction of an aryl and alkyl motif onto the piperazine skeleton is not always straightforward, direct arylation or alkylation of 1,4-diaza-bicyclo[2.2.2]octane would obviate the inefficiencies associated with the preparation of these target valuable molecules. We have utilized alkyl chlorides as the alkyl source, aryl triflates as the active aryl source, and 1,4-diaza-bicyclo[2.2.2]octane for the synthesis of N-alkyl-N′-arylpiperazines. The optimum conditions are developed using CuCl and t-BuOLi in PEG-400. Substrates bearing electron-deficient as well as electron-rich groups were successfully coupled under the optimum reaction conditions.</em>
Aryl triflate,Unsymmetrical pipirazine,Cross-coupling reaction,Bulky base,Copper Chloride,Polyethylene glycol-400
https://www.nsmsi.ir/article_29044.html
https://www.nsmsi.ir/article_29044_671fbfdd2edc77f120929723f0eee96d.pdf
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Nashrieh Shimi va Mohandesi Shimi Iran
1022-7768
37
3
2018
11
22
A Theoretical Investigation on NO Reduction over B12N12 and B11N12C Nanocages
109
118
FA
Mehdi
Esrafili
Department of Chemistry, Faculty of Basis Sciences, University of Maragheh, Maragheh, I.R. IRAN
esrafili@maragheh.ac.ir
Nasibeh
Saeidi
Department of Chemistry, Faculty of Basis Sciences, University of Maragheh, Maragheh, I.R. IRAN
nasibehsaeidi92@gmail.com
Roghaye
Nurazar
Department of Chemistry, Faculty of Basis Sciences, University of Maragheh, Maragheh, I.R. IRAN
r.nurazar_68@yahoo.com
<em>Today, air pollution is one of the important environmental problems in most developing countries. In this paper, using density functional theory calculations, the mechanism of NO reduction is investigated over B<sub>12</sub>N<sub>12</sub> and B<sub>11</sub>N<sub>12</sub>C nanocages. The proposed pathway for this reaction is as 2NO → N<sub>2</sub>O + O<sub>ads</sub> and O<sub>ads</sub> + N<sub>2</sub>O → N<sub>2</sub> + O<sub>2</sub>. The results indicate that C-doping increases the surface reactivity of B<sub>12</sub>N<sub>12</sub> nanocage. </em><em>The activation energies and calculated thermodynamic parameters show that the B<sub>11</sub>N<sub>12</sub>C nanocage has a better catalytic activity than B<sub>12</sub>N<sub>12</sub>, which could be due to the presence of doped carbon atom in this structure.</em>
NO reduction,Activation Energy,Doping,boron-nitride nanocage,density functional theory
https://www.nsmsi.ir/article_28234.html
https://www.nsmsi.ir/article_28234_a73cf229b92505289f23d1399d529adc.pdf
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Nashrieh Shimi va Mohandesi Shimi Iran
1022-7768
37
3
2018
11
22
Surface Coated Urea with Bio-Degradable Materials Using a Fluidized Bed
119
126
FA
Yousef
KhanMOhammadi
School of Chemical Engineering, Iran University of Science and Technology (IUST), P.O. Box 16765-163 Tehran, I.R. IRAN
yousefkhanmm@gmail.com
Salman
Movahedirad
School of Chemical Engineering, Iran University of Science and Technology (IUST), P.O. Box 16765-163 Tehran, I.R. IRAN
movahedirad@iust.ac.ir
<em>Due to the high solubility rate of urea in water, a noticeable portion of this fertilizer migrates into the underneath layers of soil and will be out of access of plants. This leakage not only is non-economic but also is dangerous for the environment. To avoid this leakage, different methods have been used which one of more applicable methods is the coating of the urea for controlling </em><em>its solubility rate in the water. In this paper, xanthan gum and alginate powder were used as coating</em><em> materials for urea pellets and the effects of these coatings on the releasing rate of urea was investigated. Single and double layer coatings were produced in a gas-solid-liquid fluidize bed. The best result has been obtained from the two-layer coating of xanthan gum and alginate. The results showed that this coating increases the urea release time up to 12 days.</em>
coated fertilizer,Fluidized bed,Alginate,Xanthan gam,urea
https://www.nsmsi.ir/article_28580.html
https://www.nsmsi.ir/article_28580_3251e8675d156b8ac346c03d7f51e7d8.pdf
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Nashrieh Shimi va Mohandesi Shimi Iran
1022-7768
37
3
2018
11
22
Effects of Clay on the Performance of Ultrafiltration Membrane for Landfill Leachate Treatment
127
139
FA
Mahfar
Mazani
Babol Noshirvany University of Technology, Babol, I.R. IRAN
mahfar.mazani@gmail.com
Ahmad
Rahimpour
Babol Noshirvany University of Technology, Babol, I.R. IRAN
ahmadrahimpour@nit.ac.ir
<em>This study investigates the effect of different concentrations of clay on the structure and performance of polysulfone (PSf) UltraFiltration (UF) membranes for landfill leachate treatment. The membranes were prepared by phase inversion method via dissolving PSf powder in N-methyl-2-pyrrolidone (NMP) solvent at the presence of different content of clay. Performance and fouling behavior of prepared membranes were evaluated using a lab-scale cross-flow setup. </em><em>The structure and morphology of the modified membranes were investigated by Field Emission Scanning</em><em>Electron Microscopy</em><em>(FESEM), Atomic Force Microscopy (AFM) and Energy Dispersive X-ray (EDX). </em><em>The results confirmed that the adsorbent-modified UF membranes had higher flux and improved COD removal in comparison to the neat membrane. </em><em>COD removal and NOM removal for 1.5% clay membrane was 35% and 51% respectively, and It was higher than the neat membrane (24% COD removal and 34% NOM removal). As the neat membrane was capable of reducing the COD by only 24%, It can be concluded that the addition of the adsorbents significantly enhanced the overall performance of the ultrafiltration membrane</em><em>.</em>
Landfill Leachate,Membrane,Retention,Clay
https://www.nsmsi.ir/article_28590.html
https://www.nsmsi.ir/article_28590_d38bde48e9192e1166ff75ce13ee1f28.pdf
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Nashrieh Shimi va Mohandesi Shimi Iran
1022-7768
37
3
2018
11
22
Using of Electro-Fenton Process as the Olefin Wastewater Pretreatment and Analysis by Taguchi Statistics Method
141
156
FA
Marziye
Dehboude
Department of Chemical Engineering, Faculty of Oil, Gas and Petrochemical Engineering, Persian Gulf University, 7516913817 Bushehr, I.R. IRAN
marzie_dehbode@yahoo.com
Ahmad
Azari
Department of Chemical Engineering, Faculty of Oil, Gas and Petrochemical Engineering, Persian Gulf University, 7516913817 Bushehr, I.R. IRAN
azari.ahmad@gmail.com
Mohsen
Abbasi
Department of Chemical Engineering, Faculty of Oil, Gas and Petrochemical Engineering, Persian Gulf University, 7516913817 Bushehr, I.R. IRAN
m.abbasi@pgu.ac.ir
<em><span>Nowaday</span><span>s,</span><span> due to the environmental challenges of industrial wastewater containing toxic and dangerous substances, there is particular importance in needing new and effective technologies for wastewater treatment. Electrochemical methods as one of the advanced </span><span>oxidation processes used effectively for the decomposition of organic compounds. The Electro-Fenton</span><span> process is one of these processes that it generates hydroxyl radicals. During electrochemical reactions and by applying electricity to the anode and cathode electrodes, hydroxyl radicals attack the pollutants and remove them. The purpose of this study is to evaluate the performance of the electro-Fenton process as an industrial wastewater pretreatment with a high concentration of olefin materials. In this study, an electro-Fenton batch reactor equipped with two iron electrodes and DC</span><span>power</span><span> supply was used in the lab scale for the removing resistant and organic compounds. Effects of four operational parameters such as pH, concentration of H<sub>2</sub>O<sub>2</sub> (hydrogen peroxide), reaction time and concentration of divalent iron were evaluated at the 5 levels and finally the optimum conditions of any factor was obtained by using of Taguchi statistics method in from of H<sub>2</sub>O<sub>2</sub> 160</span><span> mM (Level 4), pH factor 3 (Level 1), </span><span>concentration of iron 40 </span><span>mg l<sup>-1</sup> (Level 5)</span><span> and time of 15 min (</span><span>Level 1),</span><span> respectively. Also, the first and second order synthetic models were fitted to the experimental data. Results indicated that the second order of synthetic models has the best agreement with the experimental values.</span></em>
Electrochemical method,Advanced oxidation processes,Electro-fenton process,Hydroxyl radical
https://www.nsmsi.ir/article_29771.html
https://www.nsmsi.ir/article_29771_42e2b5dd043ce3daddff0a43c611b2f4.pdf
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Nashrieh Shimi va Mohandesi Shimi Iran
1022-7768
37
3
2018
11
22
Optimization of the Separation Fractional of Dispersum and Gadolinium under Uncertainty Conditions
157
172
FA
Seyyed Mohammad
Seyyed Alizadeh Ganji
Faculty of Engineering, Lorestan University, Khorramabad, I.R. IRAN
sms_ag@yahoo.com
Mohammad
Hayati
Faculty of Engineering, Lorestan University, Khorramabad, I.R. IRAN
mohammad_hayaty@yahoo.com
<em>Rare elements in nature are often found in the form of oxide, and since they are very similar in physical and chemical properties, their separation is very difficult. Hence, the study and selection of the most appropriate methods for the separation of rare elements are very important and necessary. Therefore, in this first step, in order to model and optimize the effective factors on improving the separation of Dispersum and Gadolinium, five factors including pH, Cyanex 272 to Depa ratio, solvent extraction’s concentration, time and lactic acid’s concentration were selected. Then, DX7 software was used to design the experiments and based on that, 29 tests were determined. But on the other hand, in carrying out experiments, such things as weighing with the device, preparing solutions with a specific concentration, removing different volumes, and etching of the items that can cause the error and therefore the uncertainty is why the discussion of probabilistic analysis in order to Modeling under conditions of uncertainty can be very useful for the assurance of the results. For this purpose, in the second step, based on the data obtained from the experiments and the relationships obtained between the input and output variables, first, the type and characteristics of the probability distribution function, each of the five effective input parameters were determined and based on them and with Considering the simulation results, the characteristics of the distribution parameters of the output parameters (percent recovery of dysprosium and gadolinium) were obtained.</em>
Rare elements,separation fractional,Experimental design,Uncertainty,Monte Carlo Simulation
https://www.nsmsi.ir/article_28588.html
https://www.nsmsi.ir/article_28588_741011f6a93c3935f0b6574fe6a7b0c9.pdf
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Nashrieh Shimi va Mohandesi Shimi Iran
1022-7768
37
3
2018
11
22
Precise Volume Fraction Percentage Measurement in Three-Phase Flows Using Gamma-Ray Technique and Artificial Neural Network
173
182
FA
Seyyedeh Zahra
Islami Rad
Assistant Professor, Department of physics, Faculty of Science, University of Qom, Qom, I.R. IRAN
szislami@qom.ac.ir
Reza
Gholipour Peyvandi
Department of physics & Nuclear Engineering, Shahrood University of Technology, Shahrood, I.R. IRAN
rgholipour@shahroodut.ac.ir
<em>Precise volume fraction percentage prediction in water-gasoil-air three-phase flows in unstable operational conditions is an important parameter in the oil and petroleum industry. </em><em>In this research, the volume fraction percentage was measured precisely in water-gasoil-air three-phase</em><em> flows by using single energy gamma ray attenuation technique and </em><em>neural network</em><em>, for the first time. The volume fraction percentage determination in three-phase flows requires least two gamma radioactive sources with different energies while in this study, we used just a <sup>137</sup>Cs source (with the single energy of 662 keV) and a NaI detector. Also, the multilayer perceptron (MLP) neural network was implemented to predict the volume fraction percentage. The acquired results from an experimental </em><em>setup</em><em> provides the required data for training and testing the network. The inputs of ANN have registered</em><em> spectra in the transmitted detector as the dataset matrix for ANN consisted of a (Y<sub>118×42</sub>). In this ANN, the number of neurons in the input, hidden and output layers are 118, 10 and 3, respectively. Using this proposed method, the volume fraction was predicted in water-gasoil-air three-phase flows with Mean Relative Error percentage (MRE%) less than 6.95%. Also, the Root Mean Square Error (RMSE) was calculated simultaneous 2.60. The set-up used is simpler than other proposed methods and cost, radiation safety and shielding requirements are minimized.</em>
Volume fraction percentage,Three-phase flows,Gamma-ray,Artificial neural network
https://www.nsmsi.ir/article_29043.html
https://www.nsmsi.ir/article_29043_57cc39481c98cdeb29009e5002019b59.pdf
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Nashrieh Shimi va Mohandesi Shimi Iran
1022-7768
37
3
2018
11
22
Mathematical Modeling of Clinker Phases and Study of Effective Parameters in Steady-State
183
193
FA
Saeed
Rezaie
000000016750720x
Department of Chemical Engineering, Urmia University, Faculty of Engineering, Urmia, I.R. IRAN
afs.alihosseini@iauctb.ac.ir
Afshar
Alihosseini
Department of Chemical Engineering, Urmia University, Faculty of Engineering, Urmia, I.R. IRAN
cement1312@gmail.com
<em>Cement kiln is as the heart of the cement plant in clinker production that gas and solid materials are in contact with each other in countercurrent flow. In this study, a mathematical model of concentrations distribution and clinker phases according to the mass equations and kinetics of chemical reactions in the furnace length were studied. In steady state investigated Modeling whit coating effect and maintaining the property of physical and chemical. The role of effective parameters such as Composition of feed, temperature, activation energy, material flow rate, cross section and rotational speed of kiln investigated on the governing equations and models and these equations solved in steady-state using software Matlab-7. The results of the model were compared with the experimental data that good agreement are between predicted by the model and experimental data and an error of less than 3% for the data obtained from the model and experimental is the acceptable answer for model validation.</em>
Cement,Rotary kiln,Modeling,Silicone balance,Clinker
https://www.nsmsi.ir/article_28586.html
https://www.nsmsi.ir/article_28586_c669309113e0367d73860edd49723a60.pdf
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Nashrieh Shimi va Mohandesi Shimi Iran
1022-7768
37
3
2018
11
22
Polymerization and Performance Investigation of Poly(vinyl alcohol)-g-acrylamide as Gas Hydrate Kinetic Inhibitor
195
205
FA
Fateme
Jafari
Chemical Engineering Department, Faculty of Engineering, Ferdowsi University of Mashhad, I.R. IRAN
fatemej71@yahoo.com
Hadi
Roosta
Chemical Engineering Department, Faculty of Engineering, Ferdowsi University of Mashhad, I.R. IRAN
hadi_roosta2010@yahoo.com
Ali
Dashti
0000-0002-5478-1311
Chemical Engineering Department, Faculty of Engineering, Ferdowsi University of Mashhad, I.R. IRAN
dashti@um.ac.ir
<em>In present work</em><em>, poly(vinyl alcohol)-g-acrylamide was synthesized</em><em> with two initiator </em><em>systems, which contain</em><em> ceric ammonium nitrate and ammonium persulfate/sodium metabisulfite redox systems. The structure of the graft copolymers was confirmed by F</em><em>ourier Transform InfraRed (FT-IR) spectroscopy and ThermoGravimetric Analysis (TGA). The inhibition effects of </em><em>produc</em><em>ed graft copolymers (as new kinetic hydrate inhibitors) </em><em>and polyvinyl alcohol were</em><em> investigated on gas hydrate formation with a methane-propane mixture which forms the structure II of the hydrate. </em><em>In all experiments, the initial pressure was adjusted at 23 bar, temperature at 2 ˚C, and the stirring rate</em><em> at 400 rpm. All of the tested materials reduce hydrate formation rate and their inhibition strength was PVA-g-AAM1<PVA<PVA-g-AAM2, respectively. Experimental results and kinetics of hydrate formation showed that the PVA-g-AAM1 graft copolymer decreases the average growth rate of hydrate to 11% in comparison with hydrate formation with pure water. Also, PVA-g-AAM2 graft copolymer decreases this rate to 29% which show its more suitable potential as an environmentally friendly new kinetic inhibitor.</em>
polymerization,graft copolymer,Gas hydrate,kinetic inhibitor
https://www.nsmsi.ir/article_28241.html
https://www.nsmsi.ir/article_28241_c16cf9a4c702ec5669d15ce54fcb688b.pdf
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Nashrieh Shimi va Mohandesi Shimi Iran
1022-7768
37
3
2018
11
22
The Effect of Acid Injection Rate on Carbonate Acidizing Performance in a Two-Dimensional Heterogeneous Model
207
221
FA
Sepideh
Maaref
Faculty of Petroleum Engineering, Petroleum University of Technology, Ahvaz, I.R. IRAN
sepideh.maaref@yahoo.com
Pourya
Malmir
Faculty of Petroleum Engineering, Petroleum University of Technology, Ahvaz, I.R. IRAN
pourya.malmir@afp.put.ac.ir
Aboozar
Soleymanzadeh
Faculty of Petroleum Engineering, Petroleum University of Technology, Ahvaz, I.R. IRAN
a.soleymanzadeh@put.ac.ir
Hamid Reza
Erfani
Faculty of Petroleum Engineering, Petroleum University of Technology, Ahvaz, I.R. IRAN
hamidreza.erfani@afp.put.ac.ir
Khalil
Shahbazi
Faculty of Petroleum Engineering, Petroleum University of Technology, Ahvaz, I.R. IRAN
shahbazi@put.ac.ir
<em>Carbonate acidizing modeling presents an effective tool to determine dynamic behavior trends during matrix acidizing treatment. A successful matrix acidizing process requires a minimum volume of injected acid while creating highly conductive wormholes. In this work, the two-scale continuum model was used to simulate carbonate acidizing using finite difference approach. This model describes the reactive transport of acid at the Darcy scale and determines the local permeability, porosity, pore radius, and solid-fluid interfacial area changes at the pore-scale through structure-property relationships. In this study, a two-dimensional model was employed with constant flow rate inlet boundary condition, constant pressure outlet boundary condition, and no flow boundary condition on the lateral sides. To perform a grid independent verification, the normalized acid concentration was plotted versus mesh elements which, then, results in determining the optimum number of grid blocks. To solve governing equations, finite difference approach was used by employing initial and boundary conditions. The results of the two-dimensional homogeneous model revealed that there is a uniform acid concentration profile with a reduction trend during the model length. A sensitivity study on acid injection velocity in a heterogeneous model showed that there is an optimum injection velocity of 0.33 to 1.5 cm/s in which deep wormholes with a minimal amount of acid are created. Moreover, as time passes, the reactive dissolution process takes place and results in a dynamic change in the model porosity. This model indicated a good capability to qualitatively capture the experimentally observed wormhole propagation and growth.</em>
Acidizing,Wormhole,Finite difference,Sensitivity study,Injection velocity
https://www.nsmsi.ir/article_30669.html
https://www.nsmsi.ir/article_30669_4ad863cf3031a6a56fe61ea77f968e90.pdf
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Nashrieh Shimi va Mohandesi Shimi Iran
1022-7768
37
3
2018
11
22
Study of Dual Hydrogel Behavior Versus Oil and Water in order to Control Water Production
223
236
FA
Mina
Soleymanian
Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, I.R. IRAN
soleimanian.m@gmail.com
Mahsa
Baghban Salehi
Chemistry and Chemical Engineering Research Center of Iran, Tehran, I.R. IRAN
m.bsalehi@ccerci.ac.ir
Asefe
Mousavi Moghadam
Department of Chemical Engineering, University of Malaya, MALAYSIA
asefem@gmail.com
Mohsen
Vafaei Softi
Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, I.R. IRAN
vafaiesm@modares.ac.ir
<em>As polymer gels were successful in water shutoff production, in this research a polymer gel of sulfonated polyacrylamide copolymer and chromium triacetate as crosslinker was studied. For this purpose, bottle tests and filter gel system were used for the first time in the country and also strain sweep tests were carried out.</em><em> </em><em>According to the results, quadratic equations based on the parameters were presented predicting the rupture pressure gradient due to the oil and water injection and output gel because of oil and water injection based on polymer and chromium triacetate concentrations. The results showed that polymer concentration among crosslinker concentration and their interaction had the most effect on rupture pressure gradient and output gel due to oil and water injection. Besides, in the constant </em><em>concentration of crosslinker, the increase of copolymer concentration caused an increase of rupture pressure </em><em>to 5 times due to the increase of elastic modulus of the gel network and its strength. So by increasing of strain</em><em> up to 1000%, the gel strength was stable. In fact, up to strain less than 100%, the hydrogel can keep and return to its initial shape. The results of gel rupture led to present a new mechanism to show the disproportionate permeability reduction (called as the creation of greater ruptures inside of gel by oil instead of water) which in that at same condition of experiments the ability of oil in gel rupture and creating greater rupture is more than water.</em>
Hydrogel,Elastic and Viscous Modulus,Strain Sweep,Rupture Pressure Gradient,Linear Viscoelastic Region
https://www.nsmsi.ir/article_28589.html
https://www.nsmsi.ir/article_28589_284857390357e8ced631ca736c4cc8d2.pdf
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Nashrieh Shimi va Mohandesi Shimi Iran
1022-7768
37
3
2018
11
22
Study on the Biodegradability of Polyamide6 and Thermoplastic Starch Blends Using Response Surface Methodology
237
250
FA
Somayyeh
Mohammadian-Gezaz
Department of Chemical Engineering, Payame Noor University, Tehran, Iran
s.mohammadian@pnu.ac.ir
Abbas
khoshhal
Department of Chemical Engineering, Payame Noor University, Tehran, Iran
abbas.khoshhal@gmail.com
Amirhossein
Malek
Department of Chemical Engineering, Payame Noor University, Tehran, Iran
malek.amirhosein@yahoo.com
<em>In this study, the polyamide6/ thermoplastic starch (TPS) blends were prepared. Firstly, the starch became thermoplastic and was chemically modified using glycerol and maleic anhydride, under different conditions. After the preparation of maleated thermoplastic starch (MTPS), polyamide6/ MTPS (or TPS) blends were produced considering three variables; and </em><em>the effects of various variables were investigated on their bio-degradability. In both steps, the experimental</em><em> design method of Response Surface Methodology (RSM) was used. In the first step, the effects of Maleic Anhydride (MA) amount, time and temperature of the reaction were evaluated on the “degree of </em><em>MA</em><em>grafted on the starch”. With increasing MA content, the processing time and temperature, higher MA grafting was achieved. While at a higher temperature and longer time, it was constant or slightly decreased. The highest grafting of MA was obtained at 140 </em><em>º</em><em>C, 10 min and 4-6 % MA. In the second step, the influences of </em><em>polyamide6</em><em>/starch ratio, degree of MA grafting and degradation time were studied on the bio-degradability of the blends in the active sludge, </em><em>in 90 days. Samples having TPS, showed some weight losses (or degradation) comparing to the pure</em><em>polyamide6</em><em> which had no degradation. The amount of bio-degradation increased clearly with increasing MA grafted on the starch and MTPS amount. A blend containing 30 % MTPS, reached 45 % weight loss after 75 days. Using RSM, the equations of “degree of MA grafting” and “bio-degradation” versus variables, were obtained with suitable accuracy and low error. Besides, the interactions between the parameters were discussed considering 3D plots and the coefficients of </em><em>the equations. The predicted results from the equations had a good fitting with the experimental data.</em>
polymer blend,Polyamide 6,Starch,Experimental design,Biodegradation
https://www.nsmsi.ir/article_28239.html
https://www.nsmsi.ir/article_28239_028401ad5708218379a3802796a89f12.pdf
Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR
Nashrieh Shimi va Mohandesi Shimi Iran
1022-7768
37
3
2018
11
22
Experimental Investigation of Biological Removal of H2S from Shiraz Land-Fill Gas
251
260
FA
Khadijeh
Ebadi
Department of Chemical, Petroleum and Gas Engineering, Shiraz University of Technology, Shiraz, I.R. IRAN
kh.ebadi@gmail.com
Jafar
Javanmardi
Department of Chemical, Petroleum and Gas Engineering, Shiraz University of Technology, Shiraz, I.R. IRAN
javanmardi@sutech.ac.ir
Payam
Parvasi
Department of Chemical, Petroleum and Gas Engineering, Shiraz University of Technology, Shiraz, I.R. IRAN
parvasi@sutech.ac.ir
AliAkbar
Roosta
Department of Chemical, Petroleum and Gas Engineering, Shiraz University of Technology, Shiraz, I.R. IRAN
roosta@sutech.ac.ir
<em>Environment pollution and emission of toxic gases are one of the most important human challenges in the current century. Among polluted gases, land-fill gas with a high percent of methane could be considered as a plentiful source of energy. Biofiltration is a simple and economical method for removal of some contaminants such as hydrogen sulfide which is strongly toxic and corrosive. In this method, sweetening is done by passing the polluted gas through the bed of microorganism. For this purpose, a biofilter column of plexi glass with 15cm internal diameter and 2 m height was designed and constructed. The bed of this column was vermicompost mixed with the seashell. Then Thiobacillus thioparus bacteria which is cultured in the lab was previously, stabilized on the surface of the filling. The ability of this biofilter in 30 ppm concentration of H<sub>2</sub>S and different flow rate of landfill gas, in ambient temperature and atmospheric pressure, was studied. According to the experiments, it is observed that during 2 minutes, the yield is higher </em><em>than 80%. In this condition, the concentration of H<sub>2</sub>S is desirable. Of course, in the study, the efficiency</em><em> of biofilter in 30 ppm of H<sub>2</sub>S and flow rate of 2 L/min of polluted gas, was about 90 percent.</em>
Land-fill gas,Hydrogen Sulfide,Biofilter,pollution
https://www.nsmsi.ir/article_30257.html
https://www.nsmsi.ir/article_30257_ee125f92d35335eace805fcea8ceec96.pdf