| 主权项 |
1. A process for preparing linear alkylaromatics by the alkylation of an aromatic compound with olefins having between about 8 and 20 carbon atoms comprising:
contacting the aromatic compound and a feed comprising a mixture of about 12 to about 30 wt % olefins and about 70 to about 88 wt % other components in an alkylation zone under alkylation conditions including a catalytically effective amount of a catalyst to provide an alkylation product containing monoalkylaromatics, dialkylaromatics, unreacted aromatic compound, and unreacted other components; dividing the alkylation product into a first portion and a second portion; recycling the first portion of the alkylation product to the alkylation zone; separating the second portion of the alkylation product into an aromatic-rich fraction containing the unreacted aromatic compound and a substantially aromatic compound-free fraction containing alkylaromatics, unreacted other components, and dialkylaromatics; separating the substantially aromatic-free fraction into an other component-rich fraction containing the unreacted other components and a substantially other component-free fraction containing the monoalkylaromatics, and dialkylaromatics; and separating the substantially other component-free fraction into a monoalkylaromatic fraction containing the linear monoalkylaromatics and a heavies fraction containing the dialkylaromatics. |
