Effect of Mesoporous Silica Support on the Performance of Copper/Zinc Oxide Catalyst in Hydrogenation of CO₂ to Methanol

Abstract:

Cupper/zinc oxide catalyst supported on mesoporous silica (SBA-15) prepared at different sol acidity have been synthesized. The influence of preparation conditions on the textural properties and morphology of the mesoporous silica were investgated. The morphology and textural properties of the SBA-15 synthesized through the acidic route was found to be strongly influence by the pH of the synthesis sol. The effects of supported Cu/ZnO catalyst in CO₂ hydrogenation was investigated in a three-phase reactor system at 483K, 22.5bar, and H₂/CO₂ of 3. The catalytic preformance was found to be strongly affected by the morphology of SBA-15. The maximum in the methanol synthesis activity (57.8 %) and methanol selectivity (66.4) was attained for the catalyst supported by SBA-15 synthesized at lower acidity (pH of 2).

• Periodical: Advanced Materials Research (Volume 1109)
• Pages: 128-132
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1109.128
• Online since: June 2015
• Authors: Sara Faiz Hanna Tasfy, Maizatul Shima Shaharun, Noor Asmawati Mohd Zabidi, Duvvuri Subbarao
• Keywords: CO₂ Hydrogenation, Cu/ZnO Catalyst, Mesoporous Silica, Methanol

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