Simulation and Optimization of Hydrogen Production using the Coal Gasification Process

Document Type : Research Article

Authors

1 Chemical Engineering Department, Amirkabir University of Technology, Tehran, I.R. IRAN

2 Chemical Engineering Department, Faculty of Engineering, Urmia University, Urmia, I.R. IRAN

3 Civil Engineering Department, Faculty of Engineering, Bojnord University, Bojnord, I.R. IRAN

Abstract

In this study, hydrogen production was simulated and optimized using the coal gasification in the moving-bed reactor. In this reactor, coal from the top and the combination of oxidizing gas and steam from below is in contact with solid and gas produced comes out from the top of reactor. The results of the simulation have been compared with the experimental values and the average relative error of 2.47% indicated acceptable accuracy of simulation results. The effects of inlet gas temperature, reactor pressure, ratio of steam to oxygen and coal to oxygen are investigated on the hydrogen production efficiency. Although some studies have been published regarding the modeling of the moving-bed reactor in the coal gasification, limited parametric studies are available to investigate the effect of different variables on the reactor performance with Pittsburgh coal as food. Also, in this study, simulation with discrete temperature for gas and solid to determine the exact maximum temperature of the solid phase, the kinetics of all possible reactions, simultaneous use of shrinking core and volumetric models in different areas of reactor and considering the distribution of gas components in the pyrolysis stage, happened that it is useful to find out more precisely the composition of the product gas. Finally, the reactor performance for generating maximum hydrogen yield is optimized using the particle swarm optimization method. The optimization results show that there is a 24.3% increase in hydrogen production yield compared to the basic mode.

Keywords

Main Subjects

References

[1] Seyitoglu S., Dincer I., Kilicarslan A., Energy and Exergy Analyses of Hydrogen Production by Coal Gasification, International Journal of Hydrogen Energy, 42(4): 2592-2600 (2017).
[2] Jin H., Chen Y., Ge Z., Liu S., Ren C., Guo L., Hydrogen Production by Zhundong Coal Gasification in Supercritical Water, International Journal of Hydrogen Energy, 40(46): 16096-16103 (2015).
[3] Van Dyk J., Keyser M., Coertzen M., Syngas Production from South African Coal Sources using Sasol-Lurgi Gasifires, International Journal of Coal Geology, 65(3-4): 243-253 (2006).
[4] Singh N., Raghavan V., Sundararajan T., Mathematical Modeling of Gasification of High‐Ash Indian Coals in Moving Bed Gasification System, International Journal of Energy Research, 38(6): 737-754 (2014).
[5] Yoon H., Wei J., Denn M.M., A Model for Moving‐Bed Coal Gasification Reactors, AIChE Journal, 24(5): 885-903 (1978).
[6] Stiegel G.J., Ramezan M., Hydrogen from Coal Gasification: An Economical Pathway to a Sustainable Energy Future, International Journal of Coal Geology, 65(3-4): 173-190 (2006).
[7] Shoko E., et al., Hydrogen from Coal: Production and Utilisation Technologies, International Journal of Coal Geology, 65(3-4): 213-222 (2006).
[8] Cormos C.-C., Starr F., Tzimas E., Peteves S., Innovative Concepts for Hydrogen Production Processes based on Coal Gasification with CO2 Capture, International Journal of Hydrogen Energy, 33(4): 1286-1294 (2008).
[9] Iwaszenko S., Howaniec N., Smoliński A., Determination of Random Pore Model Parameters for Underground Coal Gasification Simulation, Energy, 166: 972-978 (2019).
[10] Vascellari M., Roberts D.G., Hla S.S., Harris D.J., Hasse C., From Laboratory-Scale Experiments to Industrial-Scale CFD Simulations of Entrained Flow Coal Gasification, Fuel, 152: 58-73 (2015).
[11] Duan W., Yu Q., Wang K., Qin Q., Hou L., Wu T., ASPEN Plus Simulation of Coal Integrated Gasification Combined Blast Furnace Slag Waste Heat Recovery System, Energy Conversion and Management, 100: 30-36 (2015).
[12] Akhlas J., Baesso S., Bertucco A., Ruggeri F., Coal Gasification by Indirect Heating in a Single Moving Bed Reactor: Process Development & Simulation, AIMS Energy, 3(4): 635-665 (2015).
[13] Govind R., Shah J., Modeling and Simulation of an Entrained Flow Coal Gasifier, AIChE Journal, 30(1): 79-92 (1984).
[14] Biagini E., Pannocchia G., Zanobini M., Gigliucci G., Riccardi I., Donatini F., Tognotti L., "Process Optimization of Hydrogen Production from Coal Gasification", In 29th Meeting on Combustion, Conference Paper, June, (2006.)
[15] Zeng L., He F., Li F., Fan L-.S., Coal-Direct Chemical Looping Gasification for Hydrogen Production: Reactor Modeling and Process Simulation, Energy & Fuels, 26(6): 3680-3690 (2012).
[16] Levenspiel O., Chemical Reaction Engineering, Industrial & Engineering Chemistry Research, 38(11): 4140-4143 (1999).
[17] Niksir A., Rahimi A., "Mathematical Modeling and Simulation of Fluorination Reaction of Uranium Dioxide and Evaluation of Existing Gas-Solid Reaction Models" 5th International Chemical Engineering, Congress and Exhibition, Kish Island, Iran, 2-5 January (2008).
[18] Kulkarni M., Ganguli R., Moving Bed Gasification of Low Rank Alaska Coal, Journal of Combustion, 2012: 918754 (2012).
[19] Belghit A., El Issami S., Hydrogen Production by Steam Gasification of Coal in Gas–Solid Moving Bed using Nuclear Heat, Energy Conversion and Management, 42(1): 81-99 (2001).
[20] Belghit A., Gordillo E., El Issami S., Coal Steam-Gasification Model in Chemical Regime to Produce Hydrogen in a Gas–Solid Moving Bed Reactor using Nuclear Heat, International Journal of Hydrogen Energy, 34(15): 6114-6119 (2009).
[21] Wen C., Chen H., Onozaki M., User's Manual for Computer Simulation and Design of the Moving-Bed Coal Gasifier. Final Report, West Virginia Univ., Morgantown (USA), Dept. of Chemical Engineering, (1982).
[22] Bibrzycki J., Investigations of Coal Particle Combustion and Gasification, PH.D. Thesis, Clausthal University of Technology, Germany, (2015).
[23] Adanez J., Labiano F.G., Modeling of Moving-Bed Coal Gasifiers, Industrial & Engineering Chemistry Research, 29(10): 2079-2088 (1990).
[24] Nouri S.M.M., Ale Ebrahim H., Jamshidi E., Simulation of Direct Reduction Reactor by the Grain Model, Chemical Engineering Journal, 166(2): 704-709 (2011).
[25] Olsson A.E., "Particle Swarm Optimization: Theory, Techniques and Applications", Nova Science Publishers, Inc. (2010).
[26] Doctor S., Venayagamoorthy G.K., Gudise V.G., "Optimal PSO for Collective Robotic Search Applications", Proceedings of the 2004 Congress on Evolutionary Computation, Portland, USA, 19-23, June, (2004).
Nashrieh Shimi va Mohandesi Shimi Iran
Volume 41, Issue 4 - Serial Number 106
December 2022
Pages 367-381

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