SIMULATION OF HIGH-VALUE PRODUCT SYNTHESIS: HYDROGEN, METHANE, METHANOL AND DIMETHYL ETHER FROM FLUE GAS
Keywords:Flue Gas, Dimethyl Ether, Methane, Methanol, Solid Oxide Electrolysis Cell, Hydrogen
The solid oxide electrolysis cell (SOEC) is an electrochemical device that can efficiently convert carbon dioxide and steam to syngas using flue gas from industrial processes. Syngas can be used to produce various fuels such as methane, methanol and dimethyl ether. Therefore, this research aims to study the production of hydrogen from a solid oxide electrolysis cell system. Flue gas from a coal power plant was used to produce hydrogen. Then, hydrogen was used as a main feed component in methane synthesis, methanol synthesis and dimethyl ether synthesis. These processes were designed and simulated by using Aspen Plus V.11. The developed model was employed to study the optimal operating conditions of each process. In this study, flue gas from a coal power plant was fed into SOEC with 200 l/hr. The influences of variables affecting the operation of each process were studied. The simulation results showed that the optimal operating conditions for SOEC were temperature of 800oC and pressure of 1 bar. The maximum amount of hydrogen was 3.261 kmol/hr. The optimal operating conditions for methane synthesis were temperature of 100oC, pressure of 30 bar, H2/CO ratio of 1 and H2/CO2 ratio of 4. The maximum amount of methane was 1.630 kmol/hr. The optimal operating conditions for methanol synthesis were temperature of 200oC, pressure of 100 bar, H2/CO ratio of 2 and H2/CO2 ratio of 4. The maximum amount of methanol was 1.435 kmol/hr. The optimal operating conditions for dimethyl ether synthesis were temperature of 140oC, pressure of 20 bar, H2/CO ratio of 1 and H2/CO2 ratio of 2. The maximum amount of dimethyl ether was 1.287 kmol/hr. Furthermore, the results from this study revealed that flue gas or waste gas produced from power plant or other industries can be reused to produce high value-added products which according to circular economy concept.
Department of Mineral Fuels. (2018). What is the benefit of petroleum. Retrieved April 25, 2021, from https://dmf.go.th/public/list/data/detail/id/11266/menu/604/page/2 (in Thai).
Prasert R. (2008). GLT Technology for Clean Fuel Production. Technology Energy, 199, 95-104. (in Thai).
Reddissi Y., and Bouallou C. (2013). Valorization of Carbon Dioxide by Co-Electrolysis of CO2/H2O at High Temperature for Syngas Production. Energy Procedia, 37, 6667-6678.
Sharifian S., and Harasek M. (2015). Simulation of COX methanation reactor for the production of natural gas. Chemical Engineering Transactions, 45, 1003-1008.
Siew K., and Sadhukhan J. (2011). Process integration and economic analysis of biooil platform for the production of methanol and combined heat and power. Biomass and Bioenergy, 35, 1153-1169.
Ogawa T., Inoue N., Shikada T., and Ohno Y. (2003). Direct Dimethyl Ether Synthesis. Journal of Natural Gas Chemistry, 12, 219-227.
Stempien JP, Ding OL, Sun Q., and Chan SH. (2012). Energy and exergy analysis of solid oxide electrolyser cell (SOEC) working as a CO2 mitigation device. International Journal of Hydrogen Energy, 37, 14518-14527.
Pattaraporn K. (2013). Hydrogen and syngas productions via steam and carbon dioxide co-electrolysis using solid oxide electrolysis cell (SOEC) under the reverse reaction of solid oxide fuel cell (SOFC). Mahidol University, Engineering Faculty, Chemical Engineering Department. (in Thai).
Chanchai L., and Yuwanun S. (2014). Gas producer engine system from biomass. Bangkok. National Science and Technology Development Agency. (in Thai).
Suthinee H., and Suthep B. (2014). Experimental Study to Obtain Gas Production Conditions from the Old Landfill Solid Waste by using Gasification Process. SWU Engineering Journal, 9(1), 16-27. (in Thai).
Diego VS. (2017). Reversible solid oxide cells for bidirectional energy conversion in spot electricity and fuel markets. Columbia University, Graduate School of Arts and Sciences.
Dang S. (2019). Performance analysis of fuel assisted solid oxide co-electrolysis cell to produce syngas for dimethyl ether synthesis process. Thailand Science Research and Innovation. (in Thai).
Ni M. (2012). An electrochemical model for syngas production by co-electrolysis of H2O and CO2. Journal of Power Source, 202, 209-216.
Du Y., Qin Y., Zhang G., Yin Y., Jiao K., and Du Q. (2019). Modelling of effect of pressure on co- electrolysis of water and carbon dioxide in solid oxide electrolysis cell. International Journal of Hydrogen Energy, 44, 3456-3469.
Yaneeporn, P. (2018). Methanol production from H2O/CO2 electrolysis in a proton-conducting SOEC. Thailand Science Research and Innovation. (in Thai).
Yamada, K., Ogo, S., Yamano, R., Higo T., and Sekine Y. (2020). Low-temperature Conversion of Carbon Dioxide to Methane in an Electric Field. Chemistry Letters, 49, 303-306.
Heyne, S., Seemann, M. C, and Harvey S. (2010). Integration study for alternative methanation technologies for the production of synthetic natural gas from gasified biomass. Chemical Engineering Transcations, 21.
Pan, Z., Chan, W., Veksha, A., Giannis, A., Dou, X., Wang, H., Lisak, G., and Lim, T. (2019). Thermodynamic analyses of synthetic natural gas production via municipal solid waste gasification, high-temperature water electrolysis and methanation. Energy Conversion and Management, 202, 112-160.
Leonzio, G. (2018). Methanol Synthesis: Optimal Solution for a Better Efficiency of the Process. Process System Engineering for More Efficient Power and Chemicals Production.
Gallucci F. (2018). Chapter 18 - Inorganic Membrane Reactors for Methanol Synthesis. Science and Engineering, 493-518.
Chris Higman. (2014). State of the Gasification Industry: Worldwide Gasification Database 2014 Update. Retrieved May 19, 2020, from https://www.netl.doe.gov/sites/default/files/netl-file/2014- Wednesday-Higman_0.pdf
Inayat, A., Ghenai, C., Naqvi, M., Ammar, M., Ayoub, M., and Hussin MNB. (2017). Parametric Study for Production of Dimethyl Ether (DME) As a Fuel from Palm Wastes. Energy Procedia, 105, 1242-1249.
Catizzone, E., Bonura, G., Migliori, M., Frusteri, F., and Giordano, G. (2017). CO2 Recycling to Dimethyl Ether: State-of-the-Art and Perspectives. Molecules.
Polsen, C., Narataruksa, P., Hunpinyo, P., and Prapainainar, C. (2020). Simulation of single-step dimethyl ether synthesis from syngas. Energy reports, 6, 516-520.
How to Cite
บทความนี้เป็นผลงานใหม่ ไม่เคยเผยแพร่ที่ใดมาก่อน และไม่อยู่ระหว่างการประเมินคุณภาพทั้งในรูปแบบของวารสาร (Journals) หรือบทความที่นำเสนอในงานการประชุมวิชาการ (Proceedings) และได้รับความเห็นชอบจากผู้นิพนธ์ร่วมทุกท่านเรียบร้อยแล้ว