Affiliation:
1. CAS Key Lab of Low Carbon Conversion Science and Engineering Shanghai Advanced Research Institute Chinese Academy of Sciences Shanghai 201210 P. R. China
2. University of Chinese Academy of Sciences Beijing 100049 P. R. China
3. Shanghai Synchrotron Radiation Facility Shanghai Advanced Research Institute Shanghai 201210 P. R. China
4. School of Physical Science and Technology ShanghaiTech University Shanghai 201210 P. R. China
Abstract
AbstractEthylene (C2H4) is a major chemical for the modern society, and new technologies for its production are of strategic importance globally. Recently, oxidative dehydrogenation of ethane (C2H6) using CO2 as a milder oxidant (CO2‐ODH) is proposed as a potential way for C2H4 production, and development of effective catalysts for the process is drawing wide attention. Here, we report on a facilely prepared ZSM‐5 supported Zn system, i. e., ZnZSM‐5, which showed great promise in CO2‐ODH. Samples with different Zn loadings were prepared and evaluated, and the highest performance was obtained over 0.05ZnZSM‐5 at 700 °C and a CO2:C2H6 feeding ratio of 5 : 1. During 340 min TOS, the C2H6 conversion decreased moderately from 36.2 % to 23.1 %, and the C2H4 yield stabilized at 21.9 % to 27.9 %. Based on systematic characterization and investigation of reaction conditions, the structure‐performance relationship and reaction network were discussed in detail.
Funder
Science and Technology Commission of Shanghai Municipality
Natural Science Foundation of Inner Mongolia
Subject
General Chemistry,Catalysis,Organic Chemistry