The Application of Mechanochemical Technologies in Zeolite Catalysis
ALEXANDER V. VOSMERIKOV, LYUDMILA M. VELICHKINA, LYUDMILA N. VOSMERIKOVA, LYUDMILA L. KOROBITSYNA AND GENNADY V. IVANOV
Institute of Petroleum Chemistry, Siberian Branch of the Russian Academy of Sciences,
Pr. Akademichesky 3, Tomsk 634021 (Russia), E-mail: dmps@ipc.tsc.ru
Pages: 235-242
Abstract
The influence of mechanochemical activation (MCA) on physicochemical, adsorption, and catalytic properties of a zeolite in refining low-octane gasoline fraction and aromatization of propane-butane fraction is studied. It is shown that MCA of a zeolite leads to the decrease in its crystallinity degree, specific surface, and acidity. In the composition of the products obtained at the conversion of directly distilled gasoline fractions over activated catalysts the concentration of aromatic hydrocarbons decreases, the content of alkenes, naphthenes and isoalkanes increases, the yield of the desired product enhances. The yield of aromatic hydrocarbons during the conversion of C3-C4 saturated hydrocarbons over a zeolite catalyst subjected to mechanical activation for 12 h increases by almost 10 %, its life between regenerations is 1.5-2 times longer.
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