NiWS/Al.sub.2O.sub.3 Diesel Fraction Deep Hydrotreating Catalyst Synthesized Using Mesostructured Aluminum Hydroxide

On the basis of alumina synthesized via addition of mesostructured aluminum hydroxide gel, which is prepared by the hydrolysis of secondary aluminum butoxide in the presence of triblock copolymer Pluronic P123 to the AlOOH commercial powder, and the commercial reference sample, NiWS/Al.sub.2O.sub.3...

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Bibliographic Details
Published in:Petroleum chemistry 2018-12, Vol.58 (14), p.1186
Main Authors: Minaev, P. P, Nikul'shina, M. S, Mozhaev, A. V, Nikul'shin, P. A
Format: Article
Language:English
Subjects:
Adsorption
Aluminum hydroxide
Aluminum oxide
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Summary:On the basis of alumina synthesized via addition of mesostructured aluminum hydroxide gel, which is prepared by the hydrolysis of secondary aluminum butoxide in the presence of triblock copolymer Pluronic P123 to the AlOOH commercial powder, and the commercial reference sample, NiWS/Al.sub.2O.sub.3 catalysts are prepared using H.sub.3PW.sub.12O.sub.40 heteropolyacid and nickel citrate. The physicochemical properties of the supports and catalysts are studied by low-temperature nitrogen adsorption, temperature-programmed desorption of ammonia, and high-resolution transmission electron microscopy. The catalytic properties are investigated in the process of straight-run diesel fraction hydrotreating in a flow unit. It is shown that the use of the synthesized alumina as a catalyst support leads to an increase in the dispersity of nanosized particles of the NiWS active phase. The catalytic activity in targeted reactions also grows appreciably. The causes of these phenomena are discussed.
ISSN:0965-5441
DOI:10.1134/S0965544118140098