Patent ID: 8569197
Filing Date: 2013-10-29
Classification: B01J,C10G

Abstract:
1. A process for preparing a reforming catalyst comprising a support, a group VIIIB metal and a group VIIB metal, said process comprising the following steps in the order of 1) then 2) or 2) then 1): (1) a step for impregnating the support with an aqueous solution of hydrochloric acid comprising a group VIIIB metal; (2) a step for impregnating the support with a) an aqueous solution comprising a group VIIB metal and a sulphur-containing complexing agent in a reducing environment in order to form a coordination compound with said group VIIB metal, or b) with an aqueous solution comprising a group VIIB metal, then impregnating the resultant support containing the group VIIB metal with a solution comprising a sulphur-containing complexing agent in a reducing environment in order to form a coordination compound with said group VIIB metal; wherein the reducing environment in both (2)(a) and (2)(b) is constituted by: wherein the reducing environment is a reducing solution comprising at least one inorganic reducing phosphorus compound or at least one inorganic reducing nitrogen-containing compound, and/or wherein the sulphur-containing complexing agent in step (b) is a compound in which the sulphur is bonded to only one carbon atom.