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Performance study of CO2 zero emission SOFC/GT/ORC hybrid power system integrated with chemical chain hydrogen production
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Yongjing TONG1, Jun WANG1, Lixun CHI1, Siyu CHENG2, Liqiang DUAN2, Hanfei ZHANG2, Qiushi WANG2, Haobo WANG3, Yan HUANG1
Thermal Power Generation | 2025, 54(5) : 44 - 53
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Thermal Power Generation | 2025, 54(5): 44-53
• Special topic on new power generation technology •
Performance study of CO2 zero emission SOFC/GT/ORC hybrid power system integrated with chemical chain hydrogen production
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Yongjing TONG1, Jun WANG1, Lixun CHI1, Siyu CHENG2, Liqiang DUAN2, Hanfei ZHANG2, Qiushi WANG2, Haobo WANG3, Yan HUANG1
Affiliations
  • 1.PetroChina Planning and Engineering Institute, Beijing 100000, China
  • 2.School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 100000, China
  • 3.PetroChina Kunlun Gas Co., Ltd., Beijing 100000, China
Published: 2025-05-25 doi: 10.19666/j.rlfd.202409206
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A novel type of integrated chemical chain hydrogen production CO2 zero emission solid oxide fuel cell/gas turbine/organic Rankine cycle hybrid power system is proposed, which achieves efficient power generation while efficiently separating and capturing CO2. The system uses methane as fuel and generates hydrogen gas through chemical chain reactions to enter the fuel cell, avoiding carbon accumulation inside the cell. The anode outlet circuit of the cell is connected to the chemical chain, and the gas from the fuel reactor outlet and the cathode outlet of the cell enters the gas turbine to do work. The exhaust waste heat is recovered and utilized by the organic Rankine cycle system, further improving the system efficiency. A complete system model was established and thermodynamic performance analysis was conducted on the system, obtaining the variation laws of system performance with fuel flow rate, fuel utilization rate, battery working temperature, and system working pressure. The results showed that the comprehensive energy utilization efficiency of the system could reach over 74.10%, the electrical efficiency could reach over 62.42%, and the exergy efficiency could reach 57.73%. Sensitivity analysis showed that the system performance reached its optimum when the system working pressure reached 7×105 Pa.

solid oxide fuel cell  /  chemical chain hydrogen production  /  distributed power generation system  /  thermodynamic performance
Yongjing TONG, Jun WANG, Lixun CHI, Siyu CHENG, Liqiang DUAN, Hanfei ZHANG, Qiushi WANG, Haobo WANG, Yan HUANG. Performance study of CO2 zero emission SOFC/GT/ORC hybrid power system integrated with chemical chain hydrogen production[J]. Thermal Power Generation, 2025 , 54 (5) : 44 -53 . DOI: 10.19666/j.rlfd.202409206
Funding
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  • Scientific Research and Technology Development Project of PetroChina Kunlun Gas Co., Ltd(2023-KLKJ-10)
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Year 2025 volume 54 Issue 5
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Article Info
doi: 10.19666/j.rlfd.202409206
  • Receive Date：2024-09-07
  • Online Date：2026-03-06
  • Published：2025-05-25
Article Data
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History
  • Received：2024-09-07
Funding
Scientific Research and Technology Development Project of PetroChina Kunlun Gas Co., Ltd(2023-KLKJ-10)
Affiliations
    1.PetroChina Planning and Engineering Institute, Beijing 100000, China
    2.School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 100000, China
    3.PetroChina Kunlun Gas Co., Ltd., Beijing 100000, China
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https://castjournals.cast.org.cn/joweb/rlfd/EN/10.19666/j.rlfd.202409206
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