Studying Catalysts for the Catalytic Purification of a Helium Concentrate to Remove Hydrogen and the Laws Governing the Process

IF 0.7 Q4 ENGINEERING, CHEMICAL

Catalysis in Industry Pub Date : 2025-05-23 DOI:10.1134/S2070050424700375

S. I. Uskov, D. I. Potemkin, A. S. Urlukov, V. A. Chumachenko

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Abstract

Results of studying Pt and Pd γ-alumina supported catalysts in the hydrogen oxidation reaction for use in helium concentrate (HC) purification processes were described. The properties of the synthesized catalysts were compared with the properties of a foreign reference catalyst. The “ignition” and deactivation of the catalysts at room temperature in a laboratory reactor using a mixture simulating an HC were studied while simulating conditions at the inlet of an industrial adiabatic reactor; the properties of the catalysts were studied at temperatures of 200, 250, and 300°C under conditions simulating the occurrence of the reaction in the middle zone and at the outlet from an industrial reactor. The secondary hydrogen formation process at temperatures of 250–300°C was studied and attributed to the steam reforming of methane and ethane present in the model mixture simulating HC. The results of the study can be used to develop domestic catalysts for the purification of helium extracted from natural gas.

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研究了氦精矿催化净化除氢的催化剂及其规律

介绍了氢氧化反应中Pt和Pd γ-氧化铝负载催化剂用于氦精矿（HC）净化工艺的研究结果。将合成的催化剂的性能与国外参考催化剂的性能进行了比较。在模拟工业绝热反应器入口条件的同时，研究了在实验室反应器中使用模拟HC的混合物在室温下催化剂的“点火”和失活；在200、250和300℃的温度下，在模拟工业反应器中区和出口发生反应的条件下，研究了催化剂的性能。研究了在250 ~ 300℃温度下的二次氢生成过程，并将其归因于模拟HC的模型混合物中存在的甲烷和乙烷的蒸汽重整。研究结果可为国产天然气提氦净化催化剂的开发提供参考。

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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.