%K Carbon dioxide; Catalyst selectivity; Copper compounds; Diffusion in solids; Heat transfer; High pressure effects; Hydrogenation; Manganese; Methanol; Synthesis gas manufacture; Zirconium, Catalytic performance; CO2 hydrogenation; High pressure reactors; Methanol selectivity; Methanol synthesis; Physical adsorption; Physicochemical property; Promoter, Catalyst activity
%X The present work investigates the hydrogenation of CO2 to methanol via a promoted Cu/ZnO/SBA-15 catalyst. In order to understand the effect of Mn, Zr and Pb promoters on the catalytic activity of Cu/Zn/SBA-15 catalysts, the hydrogenation of CO2 was performed in a stirred high-pressure reactor at 483K, 22.5bar, and a H2/CO2 ration of 3. The physicochemical properties of the catalysts were studied using N2 physical adsorption, TEM and H2-TPR. The characteristics of catalysts depended on the type of promoter and it influenced their catalytic performance. The Mn and Zr promoters resulted in a larger surface area of the catalyst and improved catalytic activity and methanol selectivity. However, an opposite effect was found for the Pb promoter. A 10 improvement on the CO2 conversion and 20 on the methanol selectivity was achieved due to the double promotion effect of Mn and Zr on Cu/ZnO-SBA-15 catalyst. © (2015) Trans Tech Publications, Switzerland.
%P 178-182
%L scholars6209
%A S.F.H. Tasfy
%A N.A.M. Zabidi
%A M.S. Shaharun
%A D. Subbarao
%I Trans Tech Publications Ltd
%J Defect and Diffusion Forum
%R 10.4028/www.scientific.net/DDF.365.178
%D 2015
%O cited By 6; Conference of 10th International Conference on Diffusion in Solids and Liquids, Mass Transfer - Heat Transfer - Microstructure and Properties - Nanodiffusion and Nanostructured Materials, DSL 2014 ; Conference Date: 23 June 2014 Through 27 June 2014; Conference Code:136759
%V 365
%T The influence of Mn, Zr and Pb promoters on the performance of Cu/ZnO/SBA-15 catalyst for hydrogenation of CO2 to methanol