Catalytic Activity of Dehydrogenation of Methanol to MF over Cu/SBA-15 and Cu-ZnO/SBA-15 Prepared by Grinding and Impregnation

Abstract:

Using SBA-15 molecular sieve as the support, Cu/SBA-15 and Cu-ZnO/SBA-15 catalysts were prepared by grinding and impregnation. They were characterized by XRD, TEM, TPR and nitrogen adsorption/desorption methods. Their catalytic activities of the dehydrogenation of methanol to methyl formate (MF) were studied and compared.The results indicated that the Cu and ZnO in the catalysts prepared by grinding had a worse dispersity than that prepared by impregnation. However, the reduction temperature of the CuO in the catalysts prepared by grinding was obviously lower than that prepared by impregnation and the selectivity to MF can be improved with the adding of ZnO. The experiments showed that the methanol conversion rate and selectivity to MF were 15.23% and 79.81% at 270°C for Cu-ZnO/SBA-15-G prepared by grinding, respectively. For Cu-ZnO/SBA-15-I prepared by impregnation, the methanol conversion rate and selectivity to MF were 13.41 % and 81.31% respectively.

• Periodical: Advanced Materials Research (Volumes 608-609)
• Pages: 1476-1479
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.608-609.1476
• Online since: December 2012
• Authors: Min Jian Huang, Gong Li, Guo Ru Li
• Keywords: Cu-Based Catalysts, Grinding and Impregnation, Methanol Dehydrogenation, Methyl Formate, SBA-15 Support

References

[1] Ling He, Haichao Liu, Chaoxian Xiao, et al. Green Chem, 2008, 10:619-622.

[2] Haibin Wang, Jin Wu, Caijun Geng, et al. Nature Gas Chemical Industry, 2006, (03): 9-13.

[3] Minyukova T P, Khasin A V, Shtertser N V, et al. Appl Catal A, 2002, 237(12):171-180.

[4] Dongyuan Zhao, Jianglin Feng, Qisheng Huo, et al. Science, 1998, 279(23):548-552.

[5] Zhengji Chen, Li Zhou, Faai Zhang, et al. Applied Surface Science, 2012, 258(13):5291-5298.