Hydrate-based carbon dioxide capture from simulated integrated gasification combined cycle gas

Hydrate-based carbon dioxide capture from simulated integrated gasification combined cycle

gas

Chungang Xu;Xiaosen Li;Jing Cai;Zhaoyang Chen

【期刊名称】《天然气化学（英文版）》 【年(卷),期】2012(021)005

【摘要】The equilibrium hydrate formation conditions for CO2/H2 gas mixtures with different CO2 concentrations in 0.29 mol％ TBAB aqueous solution are firstly measured.The results illustrate that the equilibrium hydrate formation pressure increases remarkably with the decrease of CO2 concentration in the gas mixture.Based on the phase equilibrium data,a three stages hydrate CO2 separation from integrated gasification combined cycle (IGCC) synthesis gas is investigated.Because the separation efficiency is quite low for the third hydrate separation,a hybrid CO2 separation process of two hydrate stages in conjunction with one chemical absorption process (absorption with MEA) is proposed and studied.The experimental results show H2 concentration in the final residual gas released from the three stages hydrate CO2 separation process was approximately 95.0 mol％ while that released from the hybrid CO2 separation process was approximately 99.4 mol％.Thus,the hybrid process is possible to be a promising technology for the industrial application in the future.

【总页数】7页(501-507) 【关键词】

【作者】Chungang Xu;Xiaosen Li;Jing Cai;Zhaoyang Chen

【作者单位】Key Laboratory of Renewable Energy and Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640,Guandong, China;Guangzhou Center for Gas Hydrate Research, Chinese Academy of Sciences, Guangzhou 510640, Guangdong, China;Graduate University of Chinese Academy of Sciences, Beijing 100083, China;Key Laboratory of Renewable Energy and Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640,Guandong, China;Guangzhou Center for Gas Hydrate Research, Chinese Academy of Sciences, Guangzhou 510640, Guangdong, China;Key Laboratory of Renewable Energy and Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese

Academy

of

Sciences,

Guangzhou

510640,Guandong,

China;Guangzhou Center for Gas Hydrate Research, Chinese Academy of Sciences, Guangzhou 510640, Guangdong, China;Key Laboratory of Renewable Energy and Gas Hydrate, Guangzhou Institute of Energy Conversion,

Chinese

Academy

of

Sciences,

Guangzhou

510640,Guandong, China;Guangzhou Center for Gas Hydrate Research, Chinese Academy of Sciences, Guangzhou 510640, Guangdong, China 【正文语种】中文

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https://www.zhangqiaokeyan.com/academic-journal-cn_natural-gas-chemistry-english_thesis/0201218524796.html 【相关文献】

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