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US 2013/0096357 A1Published application
Heavy alkylbenzene transalkylation operating cost reduction
AssigneeUop LLC
InventorsStephen W. Sohn, Mark G. Riley
Life of this patent
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Abstract
A process for increasing the production of monoalkylbenzenes is presented. The process includes utilizing a transalkylation process to convert dialkylbenzenes to monoalkylbenzenes. The transalkylation process recycles a portion of the effluent stream from the transalkylation reactor back to the feed of the transalkylation reactor. The recycled dialkylbenzenes and a portion of the recycled benzene are converted to monoalkylbenzenes.
Claims8
A continuous process for the production of linear alkylbenzenes, comprising
- continuously supplying benzene and a mixture of linear olefin to an alkylation zone at alkylation conditions in the presence of a catalyst, wherein the linear olefins have between 8 and 16 carbon atoms, thereby generating an alkylation effluent stream comprising benzene, linear monoalkylbenzenes and heavy alkylbenzenes;
- separating the effluent stream in to a first stream comprising benzene, a second stream comprising linear monoalkylbenzenes and a third stream comprising heavy alkylbenzenes;
- continuously supplying benzene and the third stream to a transalkylation zone at transalkylation conditions in the presence of a catalyst, thereby creating a transalkylation effluent stream comprising benzene, heavy alkylbenzenes and monoalkylbenzenes;
- and
- passing a portion of the transalkylation effluent stream as a recycle stream back to the transalkylation zone, without separation of the components in the effluent stream.
2 more elements
Dependencies are inferred from the claim text.