Effect of the Modifier on the Catalytic Properties and Thermal Stability of Ru–Cs(Ba)/Sibunit Catalyst for Ammonia Decomposition Full article
| Journal |
Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
||||||
|---|---|---|---|---|---|---|---|
| Output data | Year: 2019, Volume: 60, Number: 3, Pages: 372-379 Pages count : 8 DOI: 10.1134/S0023158419030029 | ||||||
| Tags | Ru–Ba(Cs)/C catalysts, ammonia decomposition, activity, resistance to methanation, Sibunit | ||||||
| Authors |
|
||||||
| Affiliations |
|
Funding (1)
| 1 | Ministry of Science and Higher Education of the Russian Federation | 46.2.5 |
Abstract:
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 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.
Cite:
Borisov V.A.
, Iost K.N.
, Petrunin D.A.
, Temerev V.L.
, Muromtsev I.V.
, Arbuzov A.B.
, Trenikhin M.V.
, Gulyaeva T.I.
, Smirnova N.S.
, Shlyapin D.A.
, Tsyrul'nikov P.G.
Effect of the Modifier on the Catalytic Properties and Thermal Stability of Ru–Cs(Ba)/Sibunit Catalyst for Ammonia Decomposition
Kinetics and Catalysis. 2019. V.60. N3. P.372-379. DOI: 10.1134/S0023158419030029 WOS Scopus РИНЦ OpenAlex
Effect of the Modifier on the Catalytic Properties and Thermal Stability of Ru–Cs(Ba)/Sibunit Catalyst for Ammonia Decomposition
Kinetics and Catalysis. 2019. V.60. N3. P.372-379. DOI: 10.1134/S0023158419030029 WOS Scopus РИНЦ OpenAlex
Original:
Борисов В.А.
, Иост К.Н.
, Петрунин Д.А.
, Темерев В.Л.
, Муромцев И.В.
, Арбузов А.Б.
, Тренихин М.В.
, Гуляева Т.И.
, Смирнова Н.С.
, Шляпин Д.А.
, Цырульников П.Г.
Влияние природы модификатора на каталитические свойства и термическую стабильность катализаторов разложения аммиакаRu–Cs(Ba)/Сибунит
Кинетика и катализ. 2019. Т.60. №3. С.394-402. РИНЦ
Влияние природы модификатора на каталитические свойства и термическую стабильность катализаторов разложения аммиакаRu–Cs(Ba)/Сибунит
Кинетика и катализ. 2019. Т.60. №3. С.394-402. РИНЦ
Dates:
| Submitted: | Sep 21, 2018 |
| Accepted: | Dec 28, 2018 |
| Published print: | May 1, 2019 |
| Published online: | Jun 18, 2019 |
Identifiers:
| Web of science: | WOS:000472087300015 |
| Scopus: | 2-s2.0-85067447071 |
| Elibrary: | 41692377 |
| OpenAlex: | W2949271821 |