Abstract: Based on analysis of the catalytic properties of 4%Ru–13.6%Cs/Sibunit and 4%Ru–5.4%Ba–7.9%Cs/Sibunit in the ammonia decomposition (105 Pa, 350–470°C) and ammonia synthesis processes (6 × 105–5 × 106 Pa, 400–430°C), an analytical expression for nitrogen formation/consumption rate in the reversible reaction N2 + 3H2 = 2NH3 has been derived to correctly describe the dependence of the chemical reaction rate on the partial pressures of the reaction mixture components for both the forward and reverse reactions. The approach used to derive the kinetic equation is based on the assumption that the adsorption sites of the ruthenium surface are filled with hydrogen, which is subsequently displaced by nitrogen during competitive interaction. Using the proposed kinetic equation, the equilibrium constants and apparent activation energies for ammonia synthesis and decomposition in the presence of 4%Ru–13.6%Cs/Sibunit and 4%Ru–5.4%Ba–7.9%Cs/Sibunit catalysts have been determined; the values are in good agreement with the published data.

Cite: Shlyapin D.A. , Borisov V.A. , Temerev V.L. , Iost K.N. , Fedorova Z.A. , Snytnikov P.V.
Ammonia Synthesis and Decomposition in the Presence of Supported Ruthenium Catalysts
Kinetics and Catalysis. 2023. V.64. N6. P.815-825. DOI: 10.1134/S0023158423060137 WOS Scopus РИНЦ OpenAlex

Original: Шляпин Д.А. , Борисов В.А. , Темерев В.Л. , Иост К.Н. , Федорова З.А. , Снытников П.В.
Синтез и разложение аммиака на нанесенных рутениевых катализаторах
Кинетика и катализ. 2023. Т.64. №6. С.761-772. DOI: 10.31857/S0453881123060151 РИНЦ OpenAlex

Dates:

Submitted:	Dec 22, 2022
Accepted:	Jul 28, 2023
Published print:	Dec 12, 2023
Published online:	Dec 12, 2023

Identifiers:

Web of science:	WOS:001122621800014
Scopus:	2-s2.0-85179687717
Elibrary:	56644059
OpenAlex:	W4389616017

Citing: Пока нет цитирований

Altmetrics: