Preparation and Characterization of CoMn/TiO2 Catalysts for Production of Light Olefins

• Main Authors: Mostafa Feyzi, Ali Akbar Mirzaei
• Format: Article
• Language: English
• Published: Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR 2011-03-01
• Series: Iranian Journal of Chemistry & Chemical Engineering
• Subjects: co-impregnation; fischer-tropsch synthesis; operation conditions; catalytic performance
• Online Access: http://www.ijcce.ac.ir/article_6273_5cfb1a85cffc308eb2b7958b5f0ff9a0.pdf

A series of x(Co, Mn)/TiO2 catalysts (x=2–12wt.%) containing 25%Co and 75%Mn were prepared by the co-impregnation method. All prepared catalysts have been tested in Fischer-Tropsch synthesis for production of C2-C4 olefins. It was found that the catalyst containing 8wt.%(Co,Mn)/TiO2 is an optimal catalyst for production of C2-C4 olefins. The effect of operation conditions such as the H2/CO molar feed ratios, temperature, Gas Hourly Space Velocity (GHSV) and total reaction pressure on the catalytic performance of optimal catalyst was investigated. Characterizations of both precursors and catalysts were carried out using X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Brunauer-Emmett-Teller (BET) specific surface area measurement, Thermal Gravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC).