Journal of the Korean Institute of Gas (한국가스학회지)

The Korean Institute of GAS (한국가스학회)
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Optimization of Hydrogen Production Process using 50 Nm3/h Biogas

50 Nm3/h급 바이오가스 직접 이용 수소 생산 공정 최적화

  • Gi Hoon Hong (Hydrogen Energy Solution Center, Institute for Advanced Engineering) ;
  • DongKyu Lee (Hydrogen Energy Solution Center, Institute for Advanced Engineering) ;
  • Hyeong Rae Kim (Hydrogen Energy Solution Center, Institute for Advanced Engineering) ;
  • SangYeon Hwang (Hydrogen Energy Solution Center, Institute for Advanced Engineering) ;
  • HyoungWoon Song (Hydrogen Energy Solution Center, Institute for Advanced Engineering) ;
  • SungJun Ahn (Department of Chemistry and Chemical Engineering Education and Research Center for Smart Energy and Materials, Inha University) ;
  • SungWon Hwang (Department of Chemistry and Chemical Engineering Education and Research Center for Smart Energy and Materials, Inha University)
  • 홍기훈 (고등기술연구원 수소에너지솔루션센터) ;
  • 이동규 (고등기술연구원 수소에너지솔루션센터) ;
  • 김형래 (고등기술연구원 수소에너지솔루션센터) ;
  • 황상연 (고등기술연구원 수소에너지솔루션센터) ;
  • 송형운 (고등기술연구원 수소에너지솔루션센터) ;
  • 안성준 (인하대학교 화학공학과) ;
  • 황성원 (인하대학교 화학공학과)
  • Received : 2024.02.29
  • Accepted : 2024.03.15
  • Published : 2024.03.31
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Abstract

This study presents a novel approach to hydrogen production by biogas from organic waste without CO2 removal. A process model was developed to reduce the costs associated with biogas pretreatment and purification processes. Through optimization of heat exchange networks, the simulation aimed to minimize process costs, maximizing hydrogen production and flue gas temperature. The results reveal that the most efficient process model maximizes the flue gas temperature while following the constraint of the number of heat exchangers. These findings hold promise for contributing to the expansion of "Biogas-to-clean hydrogen" energy conversion technology.

본 연구에서는 유기성 폐기물로부터 생산되는 바이오가스를 이산화탄소 제거 없이 직접 이용하여 바이오가스 전처리 및 정제 공정 비용을 절감하여 수소를 생산하는 공정의 모델을 구축하고 열교환망 최적화를 통해 공정비용 최소화, 수소 생산량 및 최종 배가스 온도 최대화를 목표로 공정 모사를 진행하였다. 공정 최적화 결과 열교환기 개수 제한조건을 충족하면서 최종 배가스 온도를 최대화하는 공정모델이 가장 효율적임을 확인하였다. 본 연구의 결과는 바이오가스 직접 이용 수소 생산 공정의 상용개념설계에 활용되어 바이오가스의 청정수소 에너지 전환기술 확대에 기여 가능할 것으로 판단된다.

Keywords

Acknowledgement

본 결과물은 산업통상자원부의 재원으로 한국에너지기술평가원(KETEP)의 지원을 받아 연구되었음.(20213030040070)

References

  1. Rhee H. W., and Kim J. H., "A study on implementation plan of clean hydrogen certification system", Trans. Korean Hydrogen New Energy Soc., 33(4), 301-308, (2022) https://doi.org/10.7316/KHNES.2022.33.4.301
  2. Heo N., Lee S., and Kim B., "Biogas production and utilization technologies from organic waste", J. Korean Soc. New Renewable Energy, 4(2), 21-30, (2008)
  3. Hong G. H., and Song H., "Process modeling and economic analysis of hydrogen production system on 500 kg-H2/d-class green hydrogen station using biogas", J. Korean Inst. Gas, 25(4), 19-26, (2021)
  4. Kim H., Baek Y., and Won W., "Techno-economic analysis and life-cycle assessment for the production of hydrogen from biogas", Trans. Korean Hydrogen New Energy Soc., 32(5), 417-429, (2021) https://doi.org/10.7316/KHNES.2021.32.5.417
  5. Corripio A.B., Chrien K.S., and Evans L.B., "Estimate costs of heat exchangers and storage tanks via correlations", Chem. Eng., 82(2), 125-127, (1982)
  6. Ahmad S., "Heat exchanger networks: cost tradeoffs in energy and capital", Ph. D. thesis, Manchester university, (1985)
  7. Mulet A., Corripio A.B., and Evans L.B., "Estimate costs of pressure vessels via correlations", Chem. Eng., 88(20), 145-150, (1981)
  8. Cotrim S. L., de Araujo M.A., Leal G.C.L., Vladimir C.G.E., Ravagnani M.A.S.S., "Parameters for cost estimation in shell and tube heat exchangers network synthesis: A systematic literature review on 30 years of research", Appl. Therm. Eng., 213, 118801, (2022)
  9. Lee H. J., Kim W. H., Lee K. B., and Yoon W. L., "Kinetic model of steam-methane reforming reactions over Ni-based catalyst", Korean Chem. Eng. Res., 56(6), 914-920, (2018)
  10. Chinchen G. C., Denny P. J., Jennings J. R., Spencer M. S., and Waugh K. C., "Synthesis of methanol", Appl. Catal., 36, 1-65, (1988) https://doi.org/10.1016/S0166-9834(00)80103-7
  11. Callaghan C. A., "Kinetics and catalysis of the water-gas-shift reaction: A microkinetic and graph theoretic approach", Ph. D. thesis, Worcester Polytechnic Institute, (2006)