Activity of Co(Ni)MoS/Al2O3 catalysts, derived from cobalt(nickel) salts of H6[Co2Mo10O38H4], in hydrogenolysis of thiophene and hydrogen treatment of diesel fraction View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2012-01-26

AUTHORS

A. V. Mozhaev, P. A. Nikul’shin, Al. A. Pimerzin, V. V. Konovalov, A. A. Pimerzin

ABSTRACT

Co(Ni)MoS/Al2O3 catalysts have been prepared from ammonium 10-dodecamolybdodicobaltate (NH4)6[Co2Mo10O38H4] (further, Co2Mo10HPC) and cobalt(nickel) salts of 10-dodecamolybdodicobaltic acid H6[Co2Mo10O38H4] (hereinafter, Co2Mo10HPA). It has been found that a high activity of the Co(Ni)3-Co2Mo10HPA/Al2O3 catalysts in the hydrodesulfurization and hydrogenation reactions is due to the formation of a nanostructured type II CoMoS phase via the contact of the metals (Mo and Co(Ni)) at the molecular level. The use of Ni as a copromoter in the Ni3-Co2Mo10HPA/Al2O3 catalyst leads to a simultaneous increase, compared with Co3-Co2Mo10HPA/Al2O3, in the linear size of nanoparticles and the number of MoS2 layers in the packing of active phase. The nature of the promoter X has a substantial effect on the properties of X3Co2Mo10HPC/Al2O3 catalysts. It has been found that the catalysts with X = Co exhibit the highest activity in the hydrodesulfurization reactions and those with X = Ni, in hydrogenation reactions. More... »

PAGES

41-48

Identifiers

URI

http://scigraph.springernature.com/pub.10.1134/s0965544112010070

DOI

http://dx.doi.org/10.1134/s0965544112010070

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1010859972


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