Coupling CO_(2)reduction with ethane aromatization for enhancing catalytic stability of iron-modified ZSM-5

作     者：Zhenhua Xie Elaine Gomez Dong Wang Ji Hoon Lee Tiefeng Wang Jingguang G.Chen Zhenhua Xie;Elaine Gomez;Dong Wang;Ji Hoon Lee;Tiefeng Wang;Jingguang G.Chen

作者机构：Department of Chemical EngineeringColumbia UniversityNew YorkNY 10027USA Chemistry DivisionBrookhaven National LaboratoryUptonNY 11973USA Department of Chemical EngineeringTsinghua UniversityBeijing100084 BeijingChina 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2022年第31卷第3期

页      面：210-217,I0007页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：financial support from the US Department of Energy Basic Energy Sciences Catalysis Science Program under contract number DE-SC0012704 

主　　题：Ethane CO_(2) Aromatization Fe-modified ZSM-5 

摘      要：The shale gas revolution and the carbon-neutrality goal are motivating the landscape toward the synthesis of value-added chemicals or fuels from underutilized ethane with the assistance of greenhouse gas CO_(2).Combining ethane aromatization with CO_(2)reduction offers an opportunity to directly produce liquid products for facile separation,storage,and *** the present work,Fe/ZSM-5 catalysts showed promise in the simultaneous CO_(2)reduction and ethane aromatization at atmospheric pressure and 873 *** 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 *** types of Fe species remained almost unchanged under reaction conditions,contributing to an enhanced aromatization activity of Fe/*** effects of CO_(2)and steam on the acid sites and in turn aromatization activity were also investigated by transient studies,which exhibited a reversible modification ***,CO_(2)was identified to be critical to enhance coke resistance and in turn catalyst *** work highlights the feasibility of using CO_(2)to assist the upgrading of abundant ethane from shale gas to aromatics over non-precious Fe-based zeolite catalysts.