Patent ID: 7238843

Claim:
A process for producing an alkylaromatic compound, comprising: a) contacting a dilute olefin gas feed with a liquid lean oil stream containing at least one non-alkyl aromatic compound and at least one alkylaromatic compound in an absorption zone to provide an alkylation reaction rich oil stream containing the non-alkyl aromatic compound, the alkylaromatic compound and the olefin; b) reacting at least some of the non-alkyl aromatic compound and at least some of the olefin in the alkylation reaction rich oil stream of step (a) under alkylation reaction conditions in an alkylation reaction zone to provide an effluent containing a portion of the non-alkyl aromatic compound and an increased amount of alkylaromatic compound; c) separating the effluent of step (b) into the lean oil stream which is recycled to the absorption zone of step (a) and a product portion; and, d) recovering an alkylaromatic product from the product portion of step (c).