CATALYSEUR D'HYDROTRAITEMENT, SON PROCEDE DE PREPARATION ET SON UTILISATION.

摘要

Hydrotreating catalyst comprising Group VIII and VIB metals on a refractory oxide support comprises an organic compound (I) comprising two thiol groups separated by a ketone- or ether-functional hydrocarbon group. Hydrotreating catalyst comprising Group VIII and VIB metals on a refractory oxide support comprises an organic compound of formula (I). HS-C xH yO z-SH (I) x : 1-20; y : 2-60; z : 1-10; provided that at least one oxygen : a ketone or ether function. Independent claims are also included for: (1) producing a hydrotreating catalyst by contacting a catalyst comprising Group VIII and VIB metals on a refractory oxide support with a compound (I); (2) activating a hydrotreating catalyst is above by contacting the catalyst with hydrogen and a sulfurizing reagent, preferably hydrogen sulfide, elemental sulfur, carbon disulfide, a mercaptan, a sulfide or polysulfide or a sulfur-containing hydrocarbon fraction with a boiling point below 400[deg] C.