Catalytic Hydrogenation of CO2 to Methanol: Study of Synergistic Effect on Adsorption Properties of CO2 and H2 in CuO/ZnO/ZrO2 System

被引：70

作者：

Huang, Chunjie ^{[1
]}

Chen, Shaoyun ^{[1
]}

Fei, Xiaoyao ^{[1
]}

Liu, Dai ^{[1
]}

Zhang, Yongchun ^{[1
]}

机构：

[1] Dalian Univ Technol, Sch Chem Engn, State Key Lab Fine Chem, Liaoning 116024, Peoples R China

来源：

CATALYSTS | 2015年 / 5卷 / 04期

关键词：

methanol synthesis; CO2; conversion; synergetic effect; medium basic site; citrate method; CARBON-DIOXIDE; CU; PERFORMANCE; ZNO; FUNCTIONALITY; CONVERSION; OXYGEN; GAS; ZR;

D O I：

10.3390/catal5041846

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A series of CuO/ZnO/ZrO2 (CZZ) catalysts with different CuO/ZnO weight ratios have been synthesized by citrate method and tested in the catalytic hydrogenation of CO2 to methanol. Experimental results showed that the catalyst with the lowest CuO/ZnO weight ratio of 2/7 exhibited the best catalytic performance with a CO2 conversion of 32.9%, 45.8% methanol selectivity, and a process delivery of 193.9 g(MeOH)center dot kg(cat)(-1).h(-1). A synergetic effect is found by systematic temperature-programmed-desorption (TPD) studies. Comparing with single and di-component systems, the interaction via different components in a CZZ system provides additional active sites to adsorb more H-2 and CO2 in the low temperature range, resulting in higher weight time yield (WTY) of methanol.

引用

页码：1846 / 1861

页数：16

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