Effect of the Modifier on the Catalytic Properties and Thermal Stability of Ru–Cs(Ba)/Sibunit Catalyst for Ammonia Decomposition
- 作者: Borisov V.A.1, Iost K.N.1, Petrunin D.A.2, Temerev V.L.1, Muromtsev I.V.1, Arbuzov A.B.1, Trenikhin M.V.1, Gulyaeva T.I.1, Smirnova N.S.3, Shlyapin D.A.1, Tsyrul’nikov P.G.1
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隶属关系:
- Institute of Hydrocarbons Processing, Siberian Branch, Russian Academy of Sciences
- Omsk State Technical University
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
- 期: 卷 60, 编号 3 (2019)
- 页面: 372-379
- 栏目: Article
- URL: https://journals.rcsi.science/0023-1584/article/view/164262
- DOI: https://doi.org/10.1134/S0023158419030029
- ID: 164262
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详细
Based on the Sibunit carbon composite, Ru–Cs(Ba)/Sibunit catalysts with Cs(Ba) : Ru molar ratios of 0.5, 1.5, and 2.5 were obtained. The catalytic activity of the obtained promoted catalysts in the decomposition of ammonia and their thermal resistance to methanation are compared. In the reaction of ammonia decomposition, the specific activity (Wsp) of barium-containing catalysts proved to be 2 times lower than the specific activity of cesium-containing samples with the same molar M : Ru ratio. Thus, Wsp at 500°С was 29.4 mmol H2 min–1 for 0.5Cs–Ru/Sibunit and 15.4 mmol H2 g–1cat min–1 for 0.5Ba–Ru/Sibunit. It was shown that the introduction of barium at molar ratios Ba : Ru = of 0.5–2.5 significantly increases the thermal stability of the samples defined as the ratio of the weight of hydrogen obtained on the catalyst to the weight of carbon subjected to methanation. There is 52 g H2 for nonpromoted Ru/Sibunit catalyst, 370 g H2 for the 0.5Ba–Ru/Sibunit sample, 200 g H2 for the 1.5Ba–Ru/Sibunit sample, and 150 g H2 for the 2.5Ba–Ru/Sibunit sample per 1 g of carbon loss.
作者简介
V. Borisov
Institute of Hydrocarbons Processing, Siberian Branch, Russian Academy of Sciences
编辑信件的主要联系方式.
Email: borisovtiger86@mail.ru
俄罗斯联邦, Omsk, 644040
K. Iost
Institute of Hydrocarbons Processing, Siberian Branch, Russian Academy of Sciences
Email: borisovtiger86@mail.ru
俄罗斯联邦, Omsk, 644040
D. Petrunin
Omsk State Technical University
Email: borisovtiger86@mail.ru
俄罗斯联邦, Omsk, 644050
V. Temerev
Institute of Hydrocarbons Processing, Siberian Branch, Russian Academy of Sciences
Email: borisovtiger86@mail.ru
俄罗斯联邦, Omsk, 644040
I. Muromtsev
Institute of Hydrocarbons Processing, Siberian Branch, Russian Academy of Sciences
Email: borisovtiger86@mail.ru
俄罗斯联邦, Omsk, 644040
A. Arbuzov
Institute of Hydrocarbons Processing, Siberian Branch, Russian Academy of Sciences
Email: borisovtiger86@mail.ru
俄罗斯联邦, Omsk, 644040
M. Trenikhin
Institute of Hydrocarbons Processing, Siberian Branch, Russian Academy of Sciences
Email: borisovtiger86@mail.ru
俄罗斯联邦, Omsk, 644040
T. Gulyaeva
Institute of Hydrocarbons Processing, Siberian Branch, Russian Academy of Sciences
Email: borisovtiger86@mail.ru
俄罗斯联邦, Omsk, 644040
N. Smirnova
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: borisovtiger86@mail.ru
俄罗斯联邦, Moscow, 119991
D. Shlyapin
Institute of Hydrocarbons Processing, Siberian Branch, Russian Academy of Sciences
Email: borisovtiger86@mail.ru
俄罗斯联邦, Omsk, 644040
P. Tsyrul’nikov
Institute of Hydrocarbons Processing, Siberian Branch, Russian Academy of Sciences
Email: borisovtiger86@mail.ru
俄罗斯联邦, Omsk, 644040
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