New Supports for Carbon-Metal Catalytic Systems Based on Shungite and Carbonizates of Plant Raw Materials

• Published in: Eurasian chemico-technological journal Vol. 17; no. 3; pp. 223 - 231
• Main Authors: R. R. Tokpayev, A. A. Atchabarova, S. A. Abdullayeva, S. V. Nechipurenko, S. A. Yefremov, M. K. Nauryzbayev
• Format: Journal Article
• Language: English
• Published: al-Farabi Kazakh National University 01.01.2015
• Subjects: 2-methyl-but-2-yne-ol conversion; carbon containing support; shungite ore; support active sites
• ISSN: 1562-3920; 2522-4867
• DOI: 10.18321/ectj248

In this paper, new carbon containing materials based on products of shungite ore enrichment and carbonizates of plant raw materials were studied. The phase transformations occurring during the carbonization process were studied. Scanning electron microscopy (SEM) was used to visualize the surface topography. It was established that supports based on plant raw materials have more developed and homogeneous surface. Specific surface area and porosity was studied by BET (Method of Brunauer-Emmet Taylor). It was found that supports based on plant raw materials have developed microporous surface (383–480 m2/g), with predominant micropores on the surface with dimensions of 1.8–2.5 nm. The mechanical strength of the obtained supports is higher than their industrial analogs and it equals 53–91%. Conversion of methylbutynol on active centers of supports was studied. Supports based on plant raw materials have basic active sites whereby they can be used in base catalysis. Supports based on carbon-mineral raw materials possess acid and basic active sites and they can be used to prepare bidirectional type action of catalysts. Conducted research have shown the possibility of using these materials as supports for creating carbon-metal catalyst systems.