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CAPLUS COPYRIGHT 2013 ACS
||Process for the production of branched alkylbenzenes that uses a renewable carbon source
||Sanchez, Eric; Guillon, Emmanuelle
||IFP Energies Nouvelles, Fr.
||U.S. Pat. Appl. Publ., 14pp. CODEN: USXXCO
Disclosed is a process for the prodn. of alkylbenzenes in the presence of an arom. feedstock and an olefinic stream produced from an ethanol feedstock, itself produced from a renewable source obtained from biomass, is described, with said process comprising at least: (a) a stage for purifn. of said ethanol feedstock, (b) a stage for dehydration of said purified ethanol feedstock, obtained from said stage (a), into an effluent that is for the most part ethylene, (c) at least one stage for sepn. of the water that is present in said effluent that is for the most part ethylene obtained from said stage (b), (d) a first stage for oligomerization of said effluent that is for the most part ethylene in the presence of at least one catalyst that comprises at least one element of group VIII, (e) a second stage for oligomerization of at least some of the effluent that is obtained from said stage (d) in the presence of at least one amorphous catalyst or at least one zeolitic catalyst, (f) a stage for fractionation of the effluent that is obtained from said oligomerization stage (e) in such a way as to recover at least one olefin-enriched olefinic stream that has a no. of carbon atoms that is greater than or equal to 9, (g) an alkylation stage of said olefinic stream that is obtained from said stage (f) by at least one arom. feedstock.
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