Hydrotreating catalysts comprising supported mixtures of a...

Details Hydrotreating catalysts comprising supported mixtures of a... Hydrotreating catalysts comprising supported mixtures of a...

C - Chemistry, Metallurgy

10

G

252/100, 196/54

C10G 45/08 (2006.01) B01J 23/24 (2006.01) B01J 27/047 (2006.01) B01J 37/20 (2006.01) C10G 45/04 (2006.01)

Patent

CA 1250568

ABSTRACT OF THE DISCLOSURE Supported hydroprocessing catalysts com- prising a sulfide of trivalent chromium and Mo, W or mixture thereof are obtained by compositing a pre- selected quantity of support material with a precursor comprising a mixture of (i) a hydrated oxide of tri- valent chromium and (ii) a salt containing a thio- metallate anion of Mo or W and a cation comprising the conjugate acid of at least one neutral, nitrogen- containing polydentate ligand and heating the composite in the presence of sulfur and hydrogen in an oxygen- free atmosphere. These compositions have been found to be useful hydrotreating catalysts having nitrogen removal activity superior to that of commercial cata- lysts derived from cobalt molybdate on alumina.

491749

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