Influence of Manganese on the Catalytic Properties and Structure of the Active Surface of a Cobalt Fischer–Tropsch Catalyst

Autor:	A. N. Saliev, V. N. Soromotin, S. I. Sulima, N. P. Shabel’skaya, V. G. Bakun, I. N. Zubkov
Rok vydání:	2020
Předmět:	inorganic chemicals 010405 organic chemistry General Chemical Engineering Oxide Energy Engineering and Power Technology chemistry.chemical_element Fischer–Tropsch process General Chemistry Manganese Active surface 010402 general chemistry 01 natural sciences 0104 chemical sciences Catalysis chemistry.chemical_compound Fuel Technology Adsorption chemistry Geochemistry and Petrology Selectivity Cobalt Nuclear chemistry
Zdroj:	Petroleum Chemistry. 60:563-570
ISSN:	1555-6239 0965-5441
Popis:	It is shown that the Fischer–Tropsch synthesis in the presence of Co–xMn/SiO2 cobalt catalysts with a manganese content of 0.5–2 wt % is characterized by high activity and C5+ hydrocarbon selectivity. The optimum concentration of manganese as a promoter is 1 wt %. The influence of manganese on the state of the surface of the catalysts in oxide and reduced forms is studied by a number of physicochemical methods. The formation of solid solutions of cobalt and manganese oxides of the xCo3O4–(1−x)Mn3O4 type is confirmed. The relationship between the promoting effect of manganese and the structure of active sites and the character of adsorption of H2 and CO on the surface of the catalysts is ascertained.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e9ca687e58a0c20e00b8b3890b1d8ae6 https://doi.org/10.1134/s0965544120050126 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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