광물 탄산화를 이용한 블루 수소 연료전지 발전과 폐열 랭킨 사이클을 통한 CO2 저감량 분석 = Power Generation of Blue Hydrogen Fuel Cells using Mineral Carbonation and Analysis of CO2 Reduction through Waste Heat Rankine Cycle

국문 초록 (Abstract)

본 논문에서는 광물 탄산화, 고온 및 저온 폐열 랭킨 사이클에 따른 전체 시스템의 CO2 저감량과 발전량을산출하기위한 시스템 공정을 설계하였다. 해당 발전 시스템은 UniSim R470 프로그램을 이용해 설계됐다. 연구결과 광물 탄산화를 통한 CO2 포집률은 96.8%였으며 99.2%의 Carbonation 전환율을 확인했다. 이를 통해 총 CO2 발생량 약 44% 감소와 순 발전량 대비 이산화탄소 발생량의 감소를 확인하였다. 또한, HRC와 LRC를 동시에 활용함으로써 하나의 랭킨 사이클을 사용할 때보다 발전량을 늘릴 수 있었다. 따라서 광물탄산화기반 블루수소 공정시스템에 랭킨사이클을 적용한 경우 CO2 발생량이 약 59%가 저감되었고, 순 발전량이 약 62% 증가하는 것을확인하였다. 결과적으로 기존 그레이 수소 발전에 비하여 0.3kg CO2/kWh의 전력량 대비 이산화탄소 발생량과74.6%의 CO2 발생량 감소를 확인했다.

다국어 초록 (Multilingual Abstract)

In this study, the CO2 reduction and power generation of the entire system according to the min- eral carbonization, high and low temperature waste heat Rankine cycle were calculated. The power generation system was designed using the UniSim R460 program. As a result of the study, the CO2 capture rate through mineral carbonation was 96.8%, and the carbonation conversion rate of 99.2%. This reduced the total CO2 gen- eration by about 44%, and led to a decrease in carbon dioxide generation compared to net power generation. By using both HRC and LRC, the power generation could be increased compared to using one Rankine cycle.
when the Rankine cycle was applied to the mineral carbonization-based blue hydrogen process system, CO2 generation was reduced by about 59%, and net power generation was increased by about 62%. As a result, com- pared to the existing gray hydrogen power generation, it was investigated that 0.3 kgCO2/kWh of carbon diox- ide and 74.6% of CO2 were reduced.

참고문헌 (Reference)

• 1 Choi, Y., "Water gas shift reaction kinetics and reactor modeling for fuel cell grade hydrogen" 124 (124): 432-439, 2003
• 2 Zamel, N., "Transient analysis of carbon monoxide poisoning and oxygen bleeding in a PEM fuel cell anode catalyst layer" 33 (33): 1335-1344, 2008
• 3 Lachner, B. F., "The commercial feasibility of the use of water vapor as a refrigerant" 30 (30): 699-708, 2007
• 4 Lee S. J., "The Study on Performance Characteristics of NH3Refrigeration System Using Optimun Heat Exchanger" 1276-1281, 2004
• 5 강성길 ; 허철, "The Latest Progress on the Development of Technologies for CO2 storage in Marine Geological Structure and its Application in Republic of Korea" 11 (11): 24-34, 2008
• 6 천욱래 ; 안강섭 ; 신현길, "Study on the Characteristics of Methanol Steam Reformer Using Latent Heat of Steam" 29 (29): 19-24, 2018
• 7 우경일 ; 장용해 ; 최요순, "Study on Designing Battery Energy Storage System(BESS)Related to Renewable Energy and Power Efficiency According to Charging-Discharging" 4 (4): 61-69, 2020
• 8 Silva, G. F., "Simulation and Optimization of H2 Production by Autothermal Reforming of Glycerol" 987-992, 2009
• 9 조수용, "Selection of Working fluid for the Organic Rankine Cycle to Utilize Low-Temperature Waste Heat" 10 (10): 36-46, 2014
• 10 Lee Y. S., "Re-establishment of functions and roles of power industry regulators in the era of energy transition" 132-145, 2021
• 11 Bao, W. J., "Process simulation of mineral carbonation of phosphogypsum with ammonia under increased CO2 pressure" 17 : 125-136, 2017
• 12 Park H. R., "Process Design of Amine-Based CO2 Capture System Using a Low-Pressure Flash Column for the SMR-Based Hydrogen Plant" 2023
• 13 Grid S., "Polymer Electrolyte Membrane Fuel Cells(PEMFC)in Automotive Applications : Environmental Relevance of the Manufacturing Stage" 2 (2): 7-, 2011
• 14 Pal, D. B., "Performance of water gas shift reaction catalysts : A review" 93 : 549-565, 2018
• 15 Kim J., "Modeling of proton exchange membrane fuel cell performance with an empirical equation" 142 (142): 2670-2674, 1995
• 16 Lee, M. G., "Mineral carbonation of flue gas desulfurization gypsum for CO2 sequestration" 47 (47): 370-377, 2012
• 17 Xu, J. G., "Methane Steam Reforming Methanation and Water-Gas Shift" 35 (35): 88-96, 1989
• 18 노현정 ; 강관구 ; 허철 ; 이호섭, "Life Cycle Assessment of Carbon Capture and Storage in the Natural Gas Steam Methane Reforming Process for Hydrogen Production" 18 (18): 179-193, 2023
• 19 Kalman, V., "Hydrogen Purification by Pressure Swing Adsorption:High-Pressure PSA Performance in Recovery from Seasonal Storage" 14 (14): 2022
• 20 An J. J., "Greenhouse Gas Reduction Methodology Developement for Mineral Carbonation Technology Using Flue Gas Desulfurization Gypsum" 18 (18): 71-85, 2023
• 21 EPA, "GHG Emission Factors Hub"
• 22 James Larminie, and Andrew Dicks, "Fuel Cell System Explained" John Wiley & Sond Ltd 60-, 2003
• 23 Zhao, H. T., "Experimental study of enhanced phosphogypsum carbonation with ammonia under increased CO2pressure" 11 : 10-19, 2015
• 24 Barbir, F., "Efficiency and economics of proton exchange membrane(PEM)fuel cells" 22 (22): 1027-1037, 1997
• 25 조수용 ; 조종현, "Effect on the Cycle by the Properties of Working Fluids Using Organic Rankine Cycle" 18 (18): 5-12, 2015
• 26 오현민 ; 정훈영 ; 김주현 ; 박상건 ; 이민우, "Economic Analysis of Grey and Blue Hydrogen for Carbon and Tax Credits" 60 (60): 78-87, 2023
• 27 Pellegrini, L. A., "Design of the CO2 Removal Section for PSA Tail Gas Treatment in a Hydrogen Production Plant" 2020
• 28 Baum, E., "Chemical Property Estimation : Theory and Application" CRC Press 2018
• 29 Li N., "A review of reformed methanol-high temperature proton exchange membrane fuel cell systems" 182-, 2023
• 30 Cao, X. Y., "A Review on the Water-Gas Shift Reaction over Nickel-Based Catalysts" 14 (14): 2022