Performance study of CO<sub>2</sub> zero emission SOFC/GT/ORC hybrid power system integrated with chemical chain hydrogen production

TONG Yongjing; WANG Jun; CHI Lixun; CHENG Siyu; DUAN Liqiang; ZHANG Hanfei; WANG Qiushi; WANG Haobo; HUANG Yan

doi:10.19666/j.rlfd.202409206

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Performance study of CO₂ zero emission SOFC/GT/ORC hybrid power system integrated with chemical chain hydrogen production

Thermal Power Generation Vol. 54, Issue 5, Pages: 44-53(2025)

更新时间：2025-09-26

- Performance study of CO₂ zero emission SOFC/GT/ORC hybrid power system integrated with chemical chain hydrogen production
- 作者机构：
  
  1. 中国石油天然气股份有限公司规划总院
  2. 华北电力大学能源动力与机械工程学院
  3. 中石油昆仑燃气有限公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.202409206
  CLC：
- Published：2025
- 稿件说明：
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TONG Yongjing, WANG Jun, CHI Lixun, et al. 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：

TONG Yongjing, WANG Jun, CHI Lixun, et al. 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.

摘要

提出一种新型集成化学链制氢的CO_2零排放固体氧化物燃料电池/燃气轮机/有机朗肯循环混合动力系统，在实现高效发电的同时，高效分离捕集CO_2。系统以甲烷为燃料，通过化学链反应产生氢气进入燃料电池，避免了电池内部积碳现象发生，电池阳极出口回路至化学链，燃料反应器出口与电池阴极出口气体进入燃气轮机做功，排气余热被有机朗肯循环系统回收利用，进一步提高系统效率；并建立了系统模型并进行热力学性能分析，得到系统性能随燃料流量、燃料利用率、电池工作温度及系统工作压力的变化规律。结果表明：系统综合能源利用效率可达74.10%以上，电效率可达62.42%以上，?效率达到57.73%；敏感性分析表明，系统工作压力达到7×10~5 Pa时，系统性能达到最优。

Abstract

A novel type of integrated chemical chain hydrogen production CO_2 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 CO_2. 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 7×10~5 Pa.

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Performance study of CO2 zero emission SOFC/GT/ORC hybrid power system integrated with chemical chain hydrogen production

DOI：10.19666/j.rlfd.202409206

摘要

Abstract

关键词

Keywords

references

Performance study of CO₂ zero emission SOFC/GT/ORC hybrid power system integrated with chemical chain hydrogen production