| 摘要 |
Direct conversion of a charge comprises: (A) oligocracking of olefin in charge to produce at least one effluent having ethylene, propylene and olefin having 4-6C; (B) separating effluent in a separation zone (c) to produce at least one effluent (4) rich in ethylene, at least one effluent (5) rich in propylene, and at least one effluent having 4-6C olefin; (C) oligomerization of ethylene produced in (A) and collecting after step (B) to produce an oligomerate having 4-6C mono olefin; and (D) recycling oligomerate product at the entrance of the unit performing implementation of oligocracking. Direct conversion of a charge comprising olefins and four or five carbon atoms, comprises: (A) oligocracking of olefin present in the charge for the production of at least one effluent comprising ethylene, propylene and olefin having 4-6C; (B) separation of the effluent in at least one separation zone to produce at least one effluent rich in ethylene, at least one effluent rich in propylene, and at least one effluent comprising olefin having 4-6C; (C) oligomerization of ethylene produced in step (A) and collecting after step (B) for producing an oligomerate comprising mono olefin having 4-6C; and (D) recycling the oligomerate product from the step (C) at the entrance of the unit performing implementation of the oligocracking step. |
