Process for the hydrotreatment of an olefinic gasoline comprising a selective hydrogenation stage
AssigneeInstitut Francais du Petrole
InventorsFlorent Picard, Sebastien Leplat
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Abstract
The invention relates to a process for the hydrotreatment of an olefinic gasoline comprising at least one selective hydrogenation stage, and generally of simultaneous conversion of mercaptans by weight increase, in which the makeup hydrogen used in this stage or these stages has a reduced CO+CO2 content, preferably comprised between 5 and 200 ppmv. Most often, the CO content is comprised between 1 and 20 ppmv. The process typically makes it possible to hydrorefine an olefinic gasoline by more or less eliminating the diolefins and sulphur compounds.
Claims16
A process for the hydrotreatment of an olefinic gasoline feedstock containing diolefinic and acetylenic compounds so as to reduce at least the diolefinic and acetylenic compounds content, comprising at least one stage (a1) or (c) of selective hydrogenation on a catalyst comprising, on an inert support, at least a sulphide of an element of the group of iron, cobalt and nickel, and passing to said at least one stage (a1) or (c), makeup hydrogen having a CO+CO2 content comprised between 5 and 200 ppmv and a CO content comprised between 1 and 20 ppmv.
Dependencies are inferred from the claim text.