Use of (NH4)4[Ni(OH)6Mo6O18]·nH2O heteropoly compound in fabrication of sulfide catalysts for hydropurification of diesel fractions

Nikul’shin, P. A.; Tomina, N. N.; Eremina, Yu. V.; Пимерзин, А. А.

doi:10.1134/s1070427209010169

Cited by 6 publications

(2 citation statements)

References 12 publications

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“…3) of the catalysts can also point out that a type II multilayer Co-Mo-S phase has formed on the support surface [30,31]. According to the "rim-edge" model [32], HDS and HYD sites are dis tinguished in catalysts formed from МоS 2 layers, the sites have an identical structure, but they are located on the "rims" and "edges" of MoS 2 crystallites, respectively.…”

Section: Resultsmentioning

confidence: 98%

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

et al. 2012

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Co(Ni)MoS/Al 2 O 3 catalysts have been prepared from ammonium 10 dodecamolybdodicobaltate (NH 4 ) 6 [Co 2 Mo 10 O 38 H 4 ] (further, Co 2 Mo 10 HPC) and cobalt(nickel) salts of 10 dodecamolybdodicobaltic acid H 6 [Co 2 Mo 10 O 38 H 4 ] (hereinafter, Co 2 Mo 10 HPA). It has been found that a high activity of the Co(Ni) 3 -Co 2 Mo 10 HPA/Al 2 O 3 catalysts in the hydrodesulfurization and hydrogenation reactions is due to the forma tion 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 Ni 3 -Co 2 Mo 10 HPA/Al 2 O 3 catalyst leads to a simultaneous increase, compared with Co 3 -Co 2 Mo 10 HPA/Al 2 O 3 , in the linear size of nanoparticles and the number of MoS 2 layers in the packing of active phase. The nature of the promoter X has a substantial effect on the prop erties of X 3 Co 2 Mo 10 HPC/Al 2 O 3 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.

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Section: Resultsmentioning

confidence: 98%

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

et al. 2012

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“…9) witnesses that CoMoS phase of type II was formed on the surface of the carrier [55]. According to the ''rim-edge'' model [56][57][58], the HYD and DDS sites are identical in their structure but the HYD sites are located on the rims, whereas the DDS sites are situated both on the rims and on the edges of the MoS 2 crystallite.…”

Section: Discussionmentioning

confidence: 98%

CoMo/Al2O3 catalysts prepared on the basis of Co2Mo10-heteropolyacid and cobalt citrate: Effect of Co/Mo ratio

Nikulshin

Можаев

Pimerzin

et al. 2012

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Comparison of citric acid and glycol effects on the state of active phase species and catalytic properties of CoPMo/Al2O3 hydrotreating catalysts

Pimerzin

Можаев

Varakin

et al. 2017

Applied Catalysis B: Environmental

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Use of (NH4)4[Ni(OH)6Mo6O18]·nH2O heteropoly compound in fabrication of sulfide catalysts for hydropurification of diesel fractions

Cited by 6 publications

References 12 publications

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

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

CoMo/Al2O3 catalysts prepared on the basis of Co2Mo10-heteropolyacid and cobalt citrate: Effect of Co/Mo ratio

Comparison of citric acid and glycol effects on the state of active phase species and catalytic properties of CoPMo/Al2O3 hydrotreating catalysts

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