Authors: Valentin Dmitrievich STYTSENKO was born in 1941. In 1963 he graduated from Gubkin Moscow Institute of Petrochemical and Gas Industry. Doctor of chemistry, the lecturing professor of faculty of physical and colloidal chemistry of Gubkin Russian State University of Oil and Gas. The author of 150 scientific publications. Е-mail: vds41@mail.ru
Abstract: A new concept for preparing catalysts with predetermined properties has been considered. The concept is based upon recording information concerning further catalytic process on the surface nanolayer. The surface nanolayer conversion is found to be governed by its reactivity (r) and diffusivity (j) at the stages of preparation and pretreatment of catalysts. The requirements to the nature of element and its compound (ELn) to obtain good modifying effects for catalysts are specified. The tests of bimetallic catalysts prepared (Ni-Sn, Ni-Cr, Pd-Cr, Pd-Cr-Si) have demonstrated their advantages as compared with known catalysts for various hydrogenation and dehydrogenation processes, especially in terms of improved selectivity and stability to poisons. The ligand effect for SMB is discussed and good prospects for this new class of catalysts are predicted.
Index UDK: 66.023:541.128
Keywords: new class of catalysts, surface nanolayer, bimetallic catalysts for hydrogenation and dehydrogenation, hydrocracking and hydrorefining processes, advantages, selectivity, stability to poisons
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