Patent ID: 11932817
Assignee: CHEVRON PHILLIPS CHEMICAL COMPANY LP
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 8:
9. A reforming reactor system comprising:
a first reactor series comprising a plurality of reactors, wherein each of the reactors within the plurality of reactors of the first reactor series contains a catalyst comprising at least one Group VIII metal, a zeolitic support, and at least one halogen and capable of catalyzing the reaction of at least a portion of a hydrocarbon in a hydrocarbon feed into an aromatic hydrocarbon, thus providing a first reactor series effluent comprising the aromatic hydrocarbon, unreacted hydrocarbon, and hydrogen;
a low-pressure separator configured to separate hydrogen from the first reactor series effluent, thus providing hydrogen and a reduced-hydrogen first reactor series effluent; and
a second reactor series comprising a plurality of reactors, and
an apparatus configured to separate a non-convertible C6 hydrocarbon from the reduced-hydrogen first reactor series effluent to produce a second hydrocarbon stream,
wherein the second hydrocarbon stream comprises a greater concentration of convertible C6 hydrocarbons than the reduced-hydrogen first reactor series effluent, and (a) a charge pump operable to introduce the second hydrocarbon stream to the second reactor series; (b) a heat exchange apparatus configured to transfer heat between the second hydrocarbon stream and the first reactor series effluent prior to introduction of the second hydrocarbon stream into the second reactor series and prior to separating hydrogen from the first reactor series effluent via the hydrogen separation apparatus; or both (a) and (b), and
wherein each reactor of the second reactor series contains a catalyst comprising at least one Group VIII metal, a zeolitic support, and at least one halogen and capable of catalyzing the reaction of at least a portion of the unreacted hydrocarbon in the reduced-hydrogen first reactor series effluent into the aromatic hydrocarbon.