Diesel Fraction Isodewaxing in the Presence of Granular Platinum-Containing SAPO-11 and SAPO-41 Molecular Sieves

IF 0.7 Q4 ENGINEERING, CHEMICAL Catalysis in Industry Pub Date : 2024-05-27 DOI:10.1134/s2070050424700089

R. E. Yakovenko, M. R. Agliullin, I. N. Zubkov, O. D. Denisov, D. V. Serebrennikov, B. I. Kutepov, A. L. Maksimov

引用次数: 0

Abstract

In this paper, the physicochemical and catalytic properties of SAPO-11 and SAPO-41 molecular sieves granulated with a binder material and promoted with 0.5 wt % Pt have been studied in the isodewaxing of a hydrotreated diesel fraction. It has been shown that the introduction of ~30 wt % of boehmite, which transforms into alumina under calcination, into the granules leads to a decrease in the micropore volume by 50–70% and an increase in the external specific surface area of the material by 6–12% as compared to the highly dispersed samples of the above molecular sieves. It has been found that, at 340°C, 3 MPa, 2.0 h⁻¹, and H₂/feedstock = 800 m³/m³, both samples of bifunctional catalysts provide the production of diesel fuel with a pour point of –42°C and a yield of ~91–92 wt %.

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粒状含铂 SAPO-11 和 SAPO-41 分子筛存在下的柴油馏分异脱蜡过程

摘要本文研究了用粘合剂材料造粒并用 0.5 wt % Pt 促进的 SAPO-11 和 SAPO-41 分子筛在加氢处理柴油馏分的异脱蜡过程中的物理化学和催化特性。研究表明，与高度分散的上述分子筛样品相比，在颗粒中引入约 30 wt % 的沸石（在煅烧过程中会转化为氧化铝）可使微孔体积减少 50-70%，材料的外比表面积增加 6-12%。研究发现，在 340°C、3 兆帕、2.0 小时-1 和 H2/ 原料 = 800 立方米/立方米条件下，这两种双功能催化剂样品均可生产倾点为 -42°C 的柴油，收率约为 91-92 wt %。

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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.