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

Abstract:

A series of CuO-ZnO-CeO₂-ZrO₂/HZSM-5 catalysts were prepared and characterized by XRD, H₂-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°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.

• Periodical: Advanced Materials Research (Volumes 535-537)
• Pages: 2139-2142
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.535-537.2139
• Online since: June 2012
• Authors: Ming Yu Zhang*, Hua Wang, Wen Gui Gao
• Keywords: Carbon Dioxide, Ceria, CuO-ZnO-CeO₂-ZrO₂ Catalysts, Dimetyl Ether, Hydrogenation

References

[1] Raudaskoski R, Turpeinen E, Lenkkeri R, Pongracz E, Keiski R L. Catal. Today, 2009, 144(3-4): 318.

[2] Jia L S, Gao J, Fang W P, Li Q B. Catal. Commun., 2009, 10(15): 2000.

[3] Sun K P, Lu W W, Qiu F Y, Liu S W, Xu X L. Appl. Catal. A-Gen., 2003, 252(2): 243.

[4] Wang S, Mao D S, Guo X M, Wu G S, Lu G Z. Catal. Commun., 2009, 10(10): 1367.

[5] Saito M, Fujitani T, Takeuchi M, Watanabe T. Appl. Catal. A-Gen., 1996, 138(2): 311.

[6] Shen W J, Ichihashi Y, Matsumura Y. Appl. Catal. A-Gen., 2005, 282(1-2): 221.

[7] Kilo M, Weigel J, Wokaun A, Koeppel R A, Stoeckli A, Baiker A. J. Mol. Catal. A-Chem., 1997, 126(2-3): 169.

[8] Kieffer R, Fujiwara M, Udron L, Souma Y. Catal. Today, 1997, 36(1): 15.

[9] Zhao Y Q, Chen J X, Zhang J Y. J. Nat. Gas Chem., 2007, 16(4): 389.

[10] Campbell C T, Peden C H F. Science, 2005, 309(5735): 713.

[11] Bai J Y, Xu Z D, Zheng Y F, Yin H Y. Mater. Lett., 2006, 60(9-10): 1287.

[12] Cabus-Llaurado M C, Cesteros Y, Medina F, Salagre P, Sueiras J E. Microporous Mesoporous Mat., 2007, 100(1-3): 167.

DOI: 10.1016/j.micromeso.2006.10.034

[13] Riccardi C S, Lima R C, dos Santos M L, Bueno P R, Varela J A, Longo E. Solid State Ion., 2009, 180(2-3): 288.

DOI: 10.1016/j.ssi.2008.11.016

[14] Rhodes M D, Pokrovski K A, Bell A T. J. Catal., 2005, 233(1): 210.