Patent ID: 7834227
Filing Date: 2010-11-16
Classification: C07C,Y02P

Abstract:
1. A process for converting an oxygenate feed to propylene (C 3 olefin) and a hydrocarbon feed to alkyl substituted benzene compounds comprising: reacting in a first reaction zone the oxygenate feed in the presence of a molecular sieve catalyst to convert a portion of oxygenate compounds in the oxygenate feed to a C reacting in the first reaction zone the hydrocarbon feed in the presence of the molecular sieve catalyst to form C forming an effluent stream containing the C separating a portion of the effluent stream in a separation zone into a first stream rich in the C recovering the first stream; reacting C6 aromatic compound and C8+ aromatics separated from the effluent in a second reaction zone under condition for transalkylating to form a fourth stream rich in C7 aromatics; passing the fourth stream to the first reaction zone; passing the third stream to a third reaction zone operated under the conditions to convert a portion of C4+ olefin into the C3 olefin and to form a fifth stream rich in the C3 olefin; and recycling the second stream to an inlet of the first reaction zone, thereby alkylating aromatics to generate C8 compounds.