New Approaches to the Preparation of Highly Efficient Chromium-Containing Oxide Catalysts for the Water Gas Shift Reaction Full article
| Journal |
Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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| Output data | Year: 2009, Volume: 50, Number: 6, Pages: 837-850 Pages count : 14 DOI: 10.1134/S002315840906007X | ||||
| Tags | Hematite; Hexavalent Chromium; Copper Chromite; Copper Cation; Admixture Anion | ||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Russian Science Support Foundation |
Abstract:
It was found experimentally that the solutions of Cr3+ nitrate and the nitrates of other metals that are the constituents of Cr-containing catalysts can be prepared by dissolving a corresponding metal (for example, cast iron and electrolytic copper) in a solution of chromic anhydride and nitric acid to reach the quantitative reduction of Cr6+ without the formation of nitrogen oxides. Analogously, the oxidation of Fe2+ cations to Fe3+ coupled with the reduction of hexavalent chromium can be performed. The precipitation of Fe3+, Cr3+, and Cu2+ ions at a ratio of Fe: Cr = 9 and a concentration of Cu2+ to 20 at % can result in the formation of a partially hydrated oxide with the hydrohematite structure—a dispersed and highly defective oxide structure with a high specific surface area more than 300 m2/g and a higher thermal stability, as compared with the goethite phase (α-FeOOH). The dehydration of hydrohematite occurred at a noticeable rate at temperatures higher than 400°C. Hydrohematite promoted with copper cations exhibited high activity below 400°C; this can decrease the starting temperature of the adiabatic high-temperature WGSR to 300°C or below.
Cite:
Khassin A.A.
, Minyukova T.P.
, Demeshkina M.P.
, Baronskaya N.A.
, Plyasova L.M.
, Kustova G.N.
, Zaikovskii V.I.
, Yurieva T.M.
New Approaches to the Preparation of Highly Efficient Chromium-Containing Oxide Catalysts for the Water Gas Shift Reaction
Kinetics and Catalysis. 2009. V.50. N6. P.837-850. DOI: 10.1134/S002315840906007X WOS Scopus РИНЦ ANCAN OpenAlex
New Approaches to the Preparation of Highly Efficient Chromium-Containing Oxide Catalysts for the Water Gas Shift Reaction
Kinetics and Catalysis. 2009. V.50. N6. P.837-850. DOI: 10.1134/S002315840906007X WOS Scopus РИНЦ ANCAN OpenAlex
Original:
Хасин А.А.
, Минюкова Т.П.
, Демешкина М.П.
, Баронская Н.А.
, Плясова Л.М.
, Кустова Г.Н.
, Зайковский В.И.
, Юрьева Т.М.
Новые подходы к приготовлению высокоэффективных оксидных хромсодержащих катализаторов паровой конверсии монооксида углерода
Кинетика и катализ. 2009. Т.50. №6. С.871-885. РИНЦ
Новые подходы к приготовлению высокоэффективных оксидных хромсодержащих катализаторов паровой конверсии монооксида углерода
Кинетика и катализ. 2009. Т.50. №6. С.871-885. РИНЦ
Dates:
| Submitted: | Oct 21, 2008 |
| Published print: | Nov 1, 2009 |
| Published online: | Dec 23, 2009 |
Identifiers:
| Web of science: | WOS:000274742300007 |
| Scopus: | 2-s2.0-75649107266 |
| Elibrary: | 15307226 |
| Chemical Abstracts: | 2010:34214 |
| Chemical Abstracts (print): | 153:509874 |
| OpenAlex: | W2087220512 |