DOI QR코드

DOI QR Code

글리세롤로부터 수증기 개질에 의한 수소 생산공정의 모델링, 시뮬레이션 및 최적화

Modeling, Simulation and Optimization of Hydrogen Production Process from Glycerol using Steam Reforming

  • 투고 : 2014.04.01
  • 심사 : 2014.06.19
  • 발행 : 2014.12.01

초록

본 연구에서는 바이오디젤 생산의 부산물인 글리세롤로부터 수증기 개질(Steam Reforming, SR) 반응을 통해 수소를 생산하는 공정의 모델링과 모사 및 최적화를 수행했다. 글리세롤을 이용한 수소 생산 방법은 기존의 수소 생산방법인 메탄의 수증기 개질법(Steam Methane Reforming, SMR)을 대체할 수 있는 새로운 방법으로 세계 여러 곳에서 연구가 진행 중이다. 글리세롤과 수증기의 기체 혼합물을 고온의 반응기 내에서 개질시켜 합성가스(CO, $H_2$)를 생산하고, 합성가스에 포함된 일산화탄소를 수성 가스 전화 반응(Water-Gas Shift, WGS)을 통해 수증기와 반응시켜 수소를 생성하고, 최종적으로 Pressure Swing Adsorption (PSA) 공정을 통하여 이산화탄소와 수소를 분리하여 정제된 수소를 얻는다. 공정시뮬레이션 프로그램인 UniSim을 이용하여 시뮬레이션을 진행하였으며, 열효율 개선을 실시하여 운전 비용을 절감하고자 하였다. 기존 연구인 미국 DOE와 독일 Linde의 글리세롤 이용 수소 생산공정과 수율 비교를 진행하였고, 수소 에너지 인프라 구축에 기여하기 위한 최적의 생산방법을 제안하였다.

For improved sustainability of the biorefinery industry, biorefinery-byproduct glycerol is being investigated as an alternate source for hydrogen production. This research designs and optimizes a hydrogen-production process for small hydrogen stations using steam reforming of purified glycerol as the main reaction, replacing existing processes relying on steam methane reforming. Modeling, simulation and optimization using a commercial process simulator are performed for the proposed hydrogen production process from glycerol. The mixture of glycerol and steam are used for making syngas in the reforming process. Then hydrogen are produced from carbon monoxide and steam through the water-gas shift reaction. Finally, hydrogen is separated from carbon dioxide using PSA. This study shows higher yield than former U.S. DOE and Linde studies. Economic evaluations are performed for optimal planning of constructing domestic hydrogen energy infrastructure based on the proposed glycerol-based hydrogen station.

키워드

참고문헌

  1. BP, "BP Statistical Review of World Energy 2013"(2013).
  2. Tan, H. W., Aziz, A. R. A. and Aroua, M. K., "Glycerol Production and Its Applications as a Raw Material: A Review," Renewable and Sustainable Energy Reviews, 27, 118-127(2013). https://doi.org/10.1016/j.rser.2013.06.035
  3. Kim, D. W., Park, K. A., Kim, M. J. and Park, D. W., "Catalytic Performance of Ionic Liquids in the Synthesis of Glycerol Carbonate from Glycerol and Urea," Korean Chem. Eng. Res., 51, 347-351(2013). https://doi.org/10.9713/kcer.2013.51.3.347
  4. Chen, Y., Wang, Y., Xu, H. and Xiong, G., "Efficient Production of Hydrogen from Natural Gas Steam Reforming in Palladium Membrane Reactor," Applied Catalysis B: Environmental, 80, 283-294(2008).
  5. Tamhankar, S., "Green Hydrogen by Pyroreforming of Glycerol," WHEC(2012).
  6. Ahmed, S. and Papadias, D., "Hydrogen from Glycerol: A Feasibility Study," DOE Hydrogen Program(2009).
  7. Adhikari, S., Fernando, S., Gwaltney, S. R., To, S. D. F., Bricka, R. M., Steele, P. H. and Haryanto, A., "A Thermodynamic Analysis of Hydrogen Production by Steam Reforming of Glycerol," Int. J. Hydrogen Energy, 32, 2875-2880(2007). https://doi.org/10.1016/j.ijhydene.2007.03.023
  8. Adhikari, S., Fernando, S. and Haryanto, A., "Kinetics and Reactor Modeling of Hydrogen Production from Glycerol via Steam Reforming Process over $Ni/CeO_2$ Catalysts," Chem. Eng. Technol., 32(4), 541-547(2009). https://doi.org/10.1002/ceat.200800462
  9. Huang, Z.-Y., Xu, C.-H., Liu, C.-Q., Xiao, H.-W., Chen, J., Zhang, Y.-X. and Lei, Y.-C., "Glycerol Steam Reforming over Ni/${\gamma}-Al_2O_3$ Catalysts Modified by Metal Oxides," Korean J. Chem. Eng., 30(3), 587-592(2013). https://doi.org/10.1007/s11814-012-0204-z
  10. Sundari, R. and Vaidya, P. D., "Reaction Kinetics of Glycerol Steam Reforming Using a $Ru/Al_2O_3$ Catalyst," Energy Fuels, 26, 4195-4204(2012). https://doi.org/10.1021/ef300658n
  11. Adhikari, S., Fernando, S. and Haryanto, A., "Hydrogen Production from Glycerol: An Update," Energy Convers. Manage., 50, 2600-2604(2009). https://doi.org/10.1016/j.enconman.2009.06.011
  12. Choi, Y. and Stenger, H. G., "Water Gas Shift Reaction Kinetics and Reactor Modeling for Fuel Cell Grade Hydrogen," J. Power Sources, 124, 432-439(2003). https://doi.org/10.1016/S0378-7753(03)00614-1
  13. Smith, R. J. B., Loganathan, M. and Shantha, M. S., "A Review of the Water Gas Shift Reaction Kinetics," Int. J. Chemical Reactor Eng., 8(1), 1-34(2010).
  14. Yang, S. I., Park, J. Y., Jang, S. C., Choi, D. Y., Kim, S. H. and Choi, D. K., "Experiment and Simulation of 4-bed PSA for Hydrogen Separation from Multi-Component Mixture Gases," Korean Chem. Eng. Res., 46(2), 414-422(2008).
  15. Chou, C., Chen, F., Huang, Y. and Yang, H., "Carbon Dioxide Capture and Hydrogen Purification from Synthesis Gas by Pressure Swing Adsorption," Chem. Eng. Trans., 32, 1855-1860(2013).

피인용 문헌

  1. LNG 추진선박에 수소 연료전지 시스템 적용을 위한 개질기의 특성 분석 vol.27, pp.1, 2021, https://doi.org/10.7837/kosomes.2021.27.1.135