Patent ID: 8889937
Filing Date: 2014-11-18
Classification: C07C,C10G,Y02P

Abstract:
1. A process for producing one or more alkylated aromatics, comprising: A) providing a first stream comprising an effective amount of benzene for alkylating benzene from a first fractionation zone comprising a benzene fractionation zone and a toluene fractionation zone included in an aromatic production apparatus; B) providing a second stream comprising an effective amount of ethene for alkylating benzene from a fluid catalytic cracking zone; C) providing at least a portion of the first and second streams to an alkylation zone to produce an effluent containing ethylbenzene, wherein the alkylation zone comprises catalytic distillation; D) passing at least a portion of the effluent comprising an effective amount of ethylbenzene to an ethylbenzene conversion zone for producing one or more xylenes; wherein the ethylbenzene conversion zone comprises a first stage and a second stage wherein the first stage converts ethylbenzene to form one or more naphthenes and the second stage dehydrogenates the one or more naphthenes to produce xylenes; E) providing a bottom stream from the toluene fractionation zone to a second fractionation zone including one or more xylene splitter columns; and F) passing a para-xylene feed stream from the second fractionation zone including one or more xylene splitter columns to a para-xylene separation zone that provides a product stream containing para-xylene and a raffinate stream depleted of para-xylene; and further comprising providing an effluent comprising at least 90% by weight ethylbenzene from the ethylbenzene conversion zone downstream of an isomerization zone, combining the effluent with an isomerization zone effluent, and passing the combined effluent stream to the para-xylene separation zone to recover para-xylene.