integrated desulfurization of a efluenete cracking or steam cracking of hydrocarbons procedure.

摘要

Desulfurization process of a load that contains thiophene and / or thiophenic compounds that comprise the following stages: e) alkylation of thiophene and / or thiophenic compounds contained in the charge introduced into this stage e) by at least one olefin in an area e alkylation, f) fractionation in a fractionation zone F of at least part of the effluent (fraction eta¿) alkylation stage e) into at least two fractions: a light fraction (lambda) sulfur-depleted recovering and a heavy fraction (mu) enriched in alkyl thiophenes and in alkyl thiophenic compounds, g) hydrocracking of at least a portion of the heavy fraction (mu) from step f) fractionating, in a g hydrocracking zone, of the alkyl thiophenes and alkyl-thiophenic compounds contained in said fraction of this heavy fraction introduced into this stage g), h) hydrotreatment of at least part of the effluent from the hydrocracking zone G, in a hydrotreatment zone H from which is recovered a fraction depleted in sulfur.