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<p>Results are given for a study of zeolite-containing rock for the purpose of comparing its characteristics with those of industrial fluid catalytic cracking (FCC) catalysts. The composition and textural properties of these samples were determined. The specific surface area of this natural aluminosilicate rock was found to be less than for the industrial FCC catalyst. The optimal temperature for achieving the maximum conversion of C<sub>18</sub>-C<sub>22</sub> <i>n</i>-alkanes was experimentally determined. The yields of various types of hydrocarbons upon variation of the temperature were determined. Treatment of this aluminosilicate with hydrochloric acid markedly enhances the amount of Brønsted acid sites relative to the Lewis base sites, which leads to greater formation of branched alkanes and indicates a considerable effect of acid functionality on the catalyst reactivity. These results contribute to our understanding of the physicochemical properties of these natural aluminosilicates and their potential in the thermal enrichment of extra heavy oils.</p>

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Study of the Catalytic Activity and Prospects for the Use of Zeolite-Containing Rock from the Tatar-Shatrashansk Deposit

  • 期刊论文

  • 发表日期：

    2026年1月1日

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  • Yu. Kh. Usmanova,
  • A. S. Il’menskii,
  • S. M. Petrov

摘要

Results are given for a study of zeolite-containing rock for the purpose of comparing its characteristics with those of industrial fluid catalytic cracking (FCC) catalysts. The composition and textural properties of these samples were determined. The specific surface area of this natural aluminosilicate rock was found to be less than for the industrial FCC catalyst. The optimal temperature for achieving the maximum conversion of C18-C22 n-alkanes was experimentally determined. The yields of various types of hydrocarbons upon variation of the temperature were determined. Treatment of this aluminosilicate with hydrochloric acid markedly enhances the amount of Brønsted acid sites relative to the Lewis base sites, which leads to greater formation of branched alkanes and indicates a considerable effect of acid functionality on the catalyst reactivity. These results contribute to our understanding of the physicochemical properties of these natural aluminosilicates and their potential in the thermal enrichment of extra heavy oils.