乙烷脱氢共生电能-增值化学品固体氧化物燃料电池研究进展
收稿日期: 2019-11-19
修回日期: 2020-02-08
网络出版日期: 2020-03-29
基金资助
国家自然科学基金项目(NO. 21975163)
Research Progress in Ethane Dehydrogenation to Cogenerate Power and Value-Added Chemicals in Solid Oxide Fuel Cells
Received date: 2019-11-19
Revised date: 2020-02-08
Online published: 2020-03-29
天然气/页岩气供应大幅增加推动了全球由乙烷制取乙烯等增值化学品的发展,深刻改变着石化产业的格局,乙烷高效清洁地转化为更高价值化学品具有深远意义. 乙烷蒸汽裂解制乙烯是一项比较成熟的工业生产技术,但是这一过程存在耗能高、积碳严重、热力学平衡受限等问题. 电能-增值化学品共生固体氧化物燃料电池由于可以将燃料气自发反应转化为高价值化学品的同时释放电能的特点被广泛研究. 本文总结了采用共生固体氧化物燃料电池将乙烷电化学脱氢共生乙烯增值化学品和电能的最新研究进展,重点介绍了固体氧化物燃料电池在乙烷脱氢中的工作原理和优势以及电解质和电极材料的选择等方向的研究发展,表明通过燃料电池技术低能耗实现乙烷共生乙烯增值化学品与电能具有显著的优越性,在实现高效节能的工业化生产中具有非常巨大的应用潜力.
樊赟 , 王琦 , 李俊 , 骆静利 , 符显珠 . 乙烷脱氢共生电能-增值化学品固体氧化物燃料电池研究进展[J]. 电化学, 2020 , 26(2) : 243 -252 . DOI: 10.13208/j.electrochem.191145
Increasing supplies of methane/shale gas have promoted global development of higher value chemicals such as ethylene production by ethane, which dramatically changes the markets of petrochemical industry. Clean and efficient transformation of ethane into higher value chemicals has far-reaching significance. Ethylene production through ethane steam cracking is a relatively matured technology for industrial production. However, the process consumes large amounts of energy and the presence of carbon deposition becomes a serious problem which is difficult to be solved. The cogenerated energy-chemicals solid oxide fuel cells have been widely studied because fuel gas can be converted into high-value chemicals via spontaneous reaction while releasing electrical energy. This paper summarizes the latest research progress in the electrochemical dehydrogenation of ethylene and electrical energy by using cogeneration solid oxide fuel cells, focusing on the mechanism and advantages of solid oxide fuel cells in ethane dehydrogenation, and the selections of electrolytes and electrode materials. It is demonstrated that the fuel cell technology has apparent advantages of realizing ethane symbiosis in ethylene production and electric energy generation with low energy consumption, and has great application potentials in the industrial production with high efficiency and energy saving.
Key words： ethane; ethylene; electric energy; cogeneration; solid oxide fuel cell
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