Effect of CeO2 Promoter on Catalytic Performance of CuO-ZnO-ZrO2/HZSM-5 Catalyst for Carbon Dioxide Hydrogenation into Dimethyl Ether

被引：2
|
作者：
Zhang, Mingyu [1 ]
Wang, Hua [1 ]
Gao, Wengui [1 ]
机构：
[1] Kunming Univ Sci & Technol, Engn Res Ctr Met Energy Conservat & Emiss Reduct, Minist Educ, Kunming 650093, Peoples R China
来源：
ADVANCED ENGINEERING MATERIALS II, PTS 1-3 | 2012年 / 535-537卷
关键词：
Ceria; Carbon dioxide; Hydrogenation; Dimetyl ether; CuO-ZnO-CeO2-ZrO2; catalysts; METHANOL SYNTHESIS; CO2; HYDROGENATION; OXIDES;
D O I：
10.4028/www.scientific.net/AMR.535-537.2139
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A series of CuO-ZnO-CeO2-ZrO2/HZSM-5 catalysts were prepared and characterized by XRD, H-2-TPR. CO2 hydrogenation to DME was carried out in a fixed bed reactor to test the catalytic performance of Ce-modified CuO-ZnO-ZrO2/HZSM-5 catalyst under the condition of GHSV=1800 h(-1), p=3.0 MPa and T=250 degrees C. The results indicate that the added CeO2 improved the performance of the bifunctional catalysts, the CO2 conversion and DME selectivity were obviously improved. CuO-ZnO-CeO2-ZrO2/HZSM-5 catalyst with Ce to Zr molar ratio of 1/1 showed the highest activity for DME synthesis from CO2 hydrogenation.
引用
收藏
页码：2139 / 2142
页数：4
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