Patent ID: 7781630
Filing Date: 2010-08-24
Classification: C07C,Y02P

Abstract:
1. An integrated process for producing detergent range alkylbenzenes from a feedstock predominantly comprising C 5 and C 6 paraffins and containing C 5 and C 6 mono-olefins, the process comprising: a) subjecting the feedstock to a dimerization or metathesis condition for converting C b) subjecting at least a portion of the reaction product to distillation to provide a higher boiling fraction containing C c) subjecting at least a portion of the lower boiling fraction of step b to dehydrogenation conditions to provide a dehydrogenated product comprising C d) selectively hydrogenating at least a portion of dehydrogenated product of step c to reduce diene concentration; e) recycling at least a portion of the selectively hydrogenated product to step a; f) alkylating benzene with at least a portion of the higher boiling fraction of step b under alkylation conditions including a stoichiometric excess of benzene to olefin to provide an alkylation effluent comprising alkylbenzenes and benzene; and g) separating benzene from at least a portion of the alkylation effluent and recycling at least a portion of the separated benzene to step f, wherein the higher boiling fraction of step b contains benzene and non-benzene aromatic compounds and at least a portion of the higher boiling fraction of step b is contacted with a sorbent to selectively sorb the non-benzene aromatic compounds and provide the higher boiling fraction of step b having a reduced aromatic compound concentration for step f.