典型文献
Coupling CO2 reduction with ethane aromatization for enhancing catalytic stability of iron-modified ZSM-5
文献摘要:
The shale gas revolution and the carbon-neutrality goal are motivating the landscape toward the synthe-sis of value-added chemicals or fuels from underutilized ethane with the assistance of greenhouse gas CO2.Combining ethane aromatization with CO2 reduction offers an opportunity to directly produce liquid products for facile separation,storage,and transportation.In the present work,Fe/ZSM-5 catalysts showed promise in the simultaneous CO2 reduction and ethane aromatization at atmospheric pressure and 873 K.The catalysts were further investigated using X-ray diffraction(XRD)and X-ray absorption fine structure(XAFS)measurements under in-situ conditions,indicating that most of Fe species existed in the form of Fe oxides and a portion of Fe was incorporated into the ZSM-5 framework generating Lewis acid sites.Both types of Fe species remained almost unchanged under reaction conditions,con-tributing to an enhanced aromatization activity of Fe/ZSM-5.The effects of CO2 and steam on the acid sites and in turn aromatization activity were also investigated by transient studies,which exhibited a reversible modification behavior.Moreover,CO2 was identified to be critical to enhance coke resistance and in turn catalyst stability.This work highlights the feasibility of using CO2 to assist the upgrading of abundant ethane from shale gas to aromatics over non-precious Fe-based zeolite catalysts.
文献关键词:
中图分类号:
作者姓名:
Zhenhua Xie;Elaine Gomez;Dong Wang;Ji Hoon Lee;Tiefeng Wang;Jingguang G.Chen
作者机构:
Department of Chemical Engineering,Columbia University,New York,NY 10027,USA;Chemistry Division,Brookhaven National Laboratory,Upton,NY 11973,USA;Department of Chemical Engineering,Tsinghua University,Beijing,100084 Beijing,China
文献出处:
引用格式:
[1]Zhenhua Xie;Elaine Gomez;Dong Wang;Ji Hoon Lee;Tiefeng Wang;Jingguang G.Chen-.Coupling CO2 reduction with ethane aromatization for enhancing catalytic stability of iron-modified ZSM-5)[J].能源化学,2022(03):210-217
A类:
tributing
B类:
Coupling,reduction,ethane,aromatization,enhancing,catalytic,stability,iron,modified,ZSM,shale,gas,revolution,carbon,neutrality,goal,are,motivating,landscape,toward,synthe,value,added,chemicals,fuels,from,underutilized,assistance,greenhouse,Combining,offers,opportunity,directly,produce,liquid,products,facile,separation,storage,transportation,In,present,catalysts,showed,promise,simultaneous,atmospheric,pressure,were,further,investigated,using,ray,diffraction,absorption,fine,structure,XAFS,measurements,situ,conditions,indicating,that,species,existed,form,oxides,portion,was,incorporated,into,framework,generating,Lewis,acid,sites,Both,types,remained,almost,unchanged,reaction,enhanced,activity,effects,steam,turn,also,by,transient,studies,which,exhibited,reversible,modification,behavior,Moreover,identified,critical,coke,resistance,This,highlights,feasibility,upgrading,abundant,aromatics,precious,zeolite
AB值:
0.579672
相似文献
机标中图分类号,由域田数据科技根据网络公开资料自动分析生成,仅供学习研究参考。