Estimating the Efficiency of Commercial Domestic Catalysts in the Reaction of Ammonia Decomposition

IF 0.7 Q4 ENGINEERING, CHEMICAL

Catalysis in Industry Pub Date : 2024-05-13 DOI:10.1134/S2070050424010100

R. E. Yakovenko, T. V. Krasnyakova, A. V. Dul’nev, A. N. Saliev, M. A. Shilov, A. V. Volik, A. P. Savost’yanov, S. A. Mitchenko

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Abstract

Adapting domestic commercial catalysts for use in such important technological processes as the environmentally friendly production of hydrogen accompanied by СО_х and NО_х emissions is in demand under import substitution conditions. Ammonia seems to be the most promising Н₂ accumulator, due to its high hydrogen density and simple storage and transportation. This work considers the possibility of using the domestic NIAP-03-01, NIAP-07-01, NIAP-06-06 catalysts and Со-Al₂O₃/SiO₂ developed by the authors in the ammonia dissociation reaction. The conversion and hydrogen production capacity grow in the order NIAP-06-06<NIAP-03-01<NIAP-07-01<Со-Al₂O₃/SiO₂. The conversion of ammonia on Со-Al₂O₃/SiO₂ is close to 100% at 550°C and a gas hourly space velocity (GHSV) of 3000 h⁻¹. The effective activation energies of all the catalysts are comparable to the available literature data for the ammonia decomposition reaction to potentially enable their application at moderate temperatures.

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估算商用家用催化剂在氨分解反应中的效率

摘要在进口替代的条件下，需要将国内商用催化剂应用于重要的技术工艺中，如以环保方式生产氢气，同时减少СОх和НОх的排放。由于氨的氢密度高、储存和运输简单，它似乎是最有前途的Н2蓄电池。本研究考虑了在氨解离反应中使用作者开发的国产 NIAP-03-01、NIAP-07-01、NIAP-06-06 催化剂和 Со-Al2O3/SiO2 的可能性。转化率和制氢能力按照 NIAP-06-06<NIAP-03-01<NIAP-07-01<Со-Al2O3/SiO2 的顺序增长。在 550°C 和气体时空速度 (GHSV) 为 3000 h-1 时，Со-Al2O3/SiO2 上的氨转化率接近 100%。所有催化剂的有效活化能都与氨分解反应的现有文献数据相当，因此可以在中等温度下应用。

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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.