脱氢
丙烷
催化作用
焦炭
化学
选择性
化学工程
材料科学
废物管理
有机化学
工程类
作者
Yong Yuan,William N. Porter,Jingguang G. Chen
标识
DOI:10.1016/j.trechm.2023.09.001
摘要
Propane dehydrogenation to propylene has received increasing attention due to the fast growth in propylene demand and the exploration of shale gas containing propane. Direct dehydrogenation of propane (DDHP) offers high propylene selectivity but is limited by quick deactivation due to coke formation. CO2-assisted oxidative dehydrogenation of propane (CO2-ODHP) can consume CO2 and meanwhile reduce coke deposition via the reverse Boudouard reaction. In the current review, direct and CO2-assisted dehydrogenation of propane has been compared from three aspects: reaction mechanisms, catalyst compositions, and CO2 footprint analysis. As the average CO2 emissions from electricity generation decrease due to the utilization of renewable energy, CO2-ODHP potentially leads to a net-negative CO2 footprint while DDHP cannot.
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