Prospects for Synthesizing Linear Alkylbenzenes via the Homogeneous Catalytic Alkylation of Benzene with Mixtures of Olefins of Complex Composition: Using Two-Dimensional Chromatography to Study the Composition of Products

IF 0.7 Q4 ENGINEERING, CHEMICAL

Catalysis in Industry Pub Date : 2025-05-23 DOI:10.1134/S207005042470034X

F. S. Golub, V. S. Bolotov, A. Yu. Shabalin, P. A. Dolgushev, V. N. Parmon

引用次数: 0

Abstract

The catalytic alkylation of benzene with a multicomponent mixture consisting of products from the thermal pyrolysis of higher paraffins and containing a wide fraction of olefins of various structures is studied. Methanesulfonic acid, which has weak corrosion properties compared to industrial catalytic systems, is used as a homogeneous catalyst. Using two-dimensional gas chromatography to analyze the composition of both the initial multicomponent raw material and the products of alkylation allow the selection of the initial process conditions and the correct calculation of such parameters for assessing efficiency as selectivity and conversion. Depending on the raw material, the selectivity to linear alkylbenzene (LAB) is ranged within 82.4–88.3%; for 2-LABs, it is 29.2–41.3% at ~90% olefin conversion.

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苯与复合组分烯烃均相催化烷基化合成直线型烷基苯的前景&用二维色谱法研究产物的组成

研究了由高阶烷烃热裂解产物和多种结构烯烃组成的多组分混合物催化苯的烷基化反应。与工业催化系统相比，甲烷磺酸具有较弱的腐蚀性能，因此被用作均相催化剂。利用二维气相色谱法分析初始多组分原料和烷基化产物的组成，可以选择初始工艺条件，并正确计算评价选择性和转化率等效率的参数。根据原料的不同，对线性烷基苯（LAB）的选择性在82.4 ~ 88.3%之间；对于2- lab，在~90%的烯烃转化率下为29.2-41.3%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Catalysis in Industry ENGINEERING, CHEMICAL-

CiteScore

1.30

自引率

14.30%

发文量

期刊介绍： The journal covers the following topical areas: Analysis of specific industrial catalytic processes: Production and use of catalysts in branches of industry: chemical, petrochemical, oil-refining, pharmaceutical, organic synthesis, fuel-energetic industries, environment protection, biocatalysis; technology of industrial catalytic processes (generalization of practical experience, improvements, and modernization); technology of catalysts production, raw materials and equipment; control of catalysts quality; starting, reduction, passivation, discharge, storage of catalysts; catalytic reactors.Theoretical foundations of industrial catalysis and technologies: Research, studies, and concepts : search for and development of new catalysts and new types of supports, formation of active components, and mechanochemistry in catalysis; comprehensive studies of work-out catalysts and analysis of deactivation mechanisms; studies of the catalytic process at different scale levels (laboratory, pilot plant, industrial); kinetics of industrial and newly developed catalytic processes and development of kinetic models; nonlinear dynamics and nonlinear phenomena in catalysis: multiplicity of stationary states, stepwise changes in regimes, etc. Advances in catalysis: Catalysis and gas chemistry; catalysis and new energy technologies; biocatalysis; nanocatalysis; catalysis and new construction materials.History of the development of industrial catalysis.