Selective transformation of carbon dioxide into lower olefins with a bifunctional catalyst composed of ZnGa2O4 and SAPO-34

被引:287
|
作者
Liu, Xiaoliang [1 ]
Wang, Mengheng [1 ]
Zhou, Cheng [1 ]
Zhou, Wei [1 ]
Cheng, Kang [1 ]
Kang, Jincan [1 ]
Zhang, Qinghong [1 ]
Deng, Weiping [1 ]
Wang, Ye [1 ]
机构
[1] Xiamen Univ, State Key Lab Phys Chem Solid Surfaces, Coll Chem & Chem Engn,Collaborat Innovat Ctr Chem, Natl Engn Lab Green Chem Prod Alcohols Ethers & E, Xiamen 361005, Peoples R China
基金
中国国家自然科学基金;
关键词
CO2; HYDROGENATION; METHANOL SYNTHESIS; DIRECT CONVERSION; OXYGEN VACANCY; SYNTHESIS GAS; HB ZEOLITE; HYDROCARBONS; SYNGAS; OXIDE; ADSORPTION;
D O I
10.1039/c7cc08642c
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A bifunctional catalyst composed of ZnGa2O4 with a spinel structure and molecular sieve SAPO-34 catalyses the direct conversion of CO2 to C-2-C-4 olefins with a selectivity of 86% and a CO2 conversion of 13% at 370 degrees C. The oxygen vacancies on ZnGa2O4 surfaces are responsible for CO2 activation, forming a methanol intermediate, which is then converted into C-2-C-4 olefins in SAPO-34.
引用
收藏
页码:140 / 143
页数:4
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