燃料化学学报（中英文）2025，Vol.53Issue(9)：1283-1289,1292-1299,15.DOI:10.1016/S1872-5813(25)60551-2
Cr基催化剂用于二氧化碳辅助低碳烷烃催化氧化脱氢制低碳烯烃研究进展
Research progress on Cr-based catalysts for the CO2-assisted catalytic oxidative dehydrogenation of light alkanes to light olefins
摘要
Abstract
Under the background of rapid consumption of crude oil and the impact of the "dual carbon" policy,utilizing light alkanes,which have a wider range of sources,as starting materials to prepare light olefins through dehydrogenation has become the most promising way to solve the problem of insufficient feedstock supply.Cr-based catalysts are attractive for their high activity and low cost.This paper reviews the current state of research on different process routes for the dehydrogenation of light alkanes to olefins,the reaction mechanism of oxidative dehydrogenation over Cr-based catalysts as well as the active sites were investigated and reviewed.CO2 as a weak oxidant in light alkanes dehydrogenation can alleviate the thermodynamic equilibrium limit,effectively inhibit the coking,decrease the reaction temperature and reduce energy consumption.In addition,Cr-based catalyst supports have been summarized and systematically classified.The interaction between Cr species and supports can be improved by introducing metal additives and modifying the supports,which in turn affects the dispersion and the state of Cr species.Finally,future challenges and directions for developing Cr-based catalysts for further industrial applications are discussed.关键词
综述/Cr基催化剂/分子筛及氧化物载体/二氧化碳/低碳烷烃Key words
review/Cr-based catalyst/zeolite and oxide support/CO2/light alkanes分类
化学化工引用本文复制引用
牛慕凡,申宝剑..Cr基催化剂用于二氧化碳辅助低碳烷烃催化氧化脱氢制低碳烯烃研究进展[J].燃料化学学报（中英文）,2025,53(9):1283-1289,1292-1299,15.基金项目
The project was supported by the Foundation for Innovative Research Groups of the National Natural Science Foundation of China(22021004)and National Natural Science Foundation of China(21776304).国家自然科学基金创新研究群体科学基金(22021004)和国家自然科学基金(21776304)资助 （22021004）
