Synthesis of Hydroxylamine Sulfate via NO Hydrogenation over Pt/Graphite Catalysts, Part 2: Effect of the Reaction Conditions and the Physicochemical State of a Catalyst on the Yield of Products Full article
| Journal |
Catalysis in Industry
ISSN: 2070-0504 , E-ISSN: 2070-0555 |
||||
|---|---|---|---|---|---|
| Output data | Year: 2020, Volume: 12, Number: 1, Pages: 16-28 Pages count : 13 DOI: 10.1134/S2070050420010031 | ||||
| Tags | hydrogenation; hydroxylamine synthesis; metal–support interaction; nitrogen oxide; platinum catalysts | ||||
| Authors |
|
||||
| Affiliations |
|
Funding (1)
| 1 | Ministry of Science and Higher Education of the Russian Federation | ГЗ-2017-2020 |
Abstract:
The selectivity toward products is studied for the industrially important process of NO hydrogenation in a H2SO4 solution as a function of process parameters: the hourly space velocity of the NO + H2 gas mixture through the reactor, the speed of stirring and the concentration of the Pt catalyst/graphite suspension, and the temperature. It is found that the first or zero order with respect to the catalyst can be observed for this process in the regime of external diffusion limitation for the gas reagents, depending on the concentration of the catalyst in the suspension, and the selectivity toward solid products (hydroxylamine sulfate (HAS) and ammonium sulfate) is greatest in the region of transition. It is shown that the selectivity towards HAS can be improved by functionalizing graphite surface with nitrogen-containing groups that modify the adsorption and catalytic properties of supported platinum nanoparticles. Some views are presented on specific features of the functioning of platinum catalysts in concentrated suspensions with a limited supply of the reaction gases. © 2020, Pleiades Publishing, Ltd.
Cite:
Bobrovskaya A.N.
, Simonov P.A.
, Kvon R.I.
, Bukhtiyarov A.V.
, Romanenko A.V.
Synthesis of Hydroxylamine Sulfate via NO Hydrogenation over Pt/Graphite Catalysts, Part 2: Effect of the Reaction Conditions and the Physicochemical State of a Catalyst on the Yield of Products
Catalysis in Industry. 2020. V.12. N1. P.16-28. DOI: 10.1134/S2070050420010031 WOS Scopus РИНЦ OpenAlex
Synthesis of Hydroxylamine Sulfate via NO Hydrogenation over Pt/Graphite Catalysts, Part 2: Effect of the Reaction Conditions and the Physicochemical State of a Catalyst on the Yield of Products
Catalysis in Industry. 2020. V.12. N1. P.16-28. DOI: 10.1134/S2070050420010031 WOS Scopus РИНЦ OpenAlex
Original:
Бобровская А.Н.
, Симонов П.А.
, Квон Р.И.
, Бухтияров А.В.
, Романенко А.В.
Получение сульфата гидроксиламина гидрированием NO на катализаторах Pt/графит: II. Влияние условий осуществления реакции и физико-химического состояния катализатора на выход продуктов
Катализ в промышленности. 2019. Т.19. №4. С.275-288. DOI: 10.18412/1816-0387-2019-4-275-288RSCI РИНЦ AN OpenAlex
Получение сульфата гидроксиламина гидрированием NO на катализаторах Pt/графит: II. Влияние условий осуществления реакции и физико-химического состояния катализатора на выход продуктов
Катализ в промышленности. 2019. Т.19. №4. С.275-288. DOI: 10.18412/1816-0387-2019-4-275-288RSCI РИНЦ AN OpenAlex
Dates:
| Submitted: | Mar 19, 2019 |
| Accepted: | May 27, 2019 |
| Published print: | Jan 1, 2020 |
| Published online: | Apr 9, 2020 |
Identifiers:
| Web of science: | WOS:000525620800003 |
| Scopus: | 2-s2.0-85083223044 |
| Elibrary: | 43292427 |
| OpenAlex: | W3015519199 |