Patent ID: 11939537
Assignee: CHEVRON U.S.A. INC.
Field: Chemical engineering (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A reforming process for producing aromatic hydrocarbons comprising providing a hydrocarbonaceous feed predominantly comprising a naphtha fraction; separating the hydrocarbonaceous feed into a first feedstream predominantly comprising C8+ hydrocarbons and a second feedstream predominantly comprising C7− hydrocarbons;
contacting the first feedstream, or a fraction thereof, with a first reforming catalyst in a first reformer comprising the first reforming catalyst under first reforming conditions effective to form a first reformate, wherein the first catalyst is primarily selective for reforming C8+ hydrocarbons to aromatic hydrocarbons;
contacting the second feedstream, or a fraction thereof, with a second reforming catalyst in a second reformer comprising a second catalyst under second reforming conditions effective to form a second reformate, wherein the second catalyst is primarily selective for reforming C7− hydrocarbons to aromatic hydrocarbons, and wherein the catalyst selective for reforming C7− hydrocarbons is selected from ZSM-5, ZSM-11, ZSM-12, ZSM-22, ZSM-23, ZSM-35, ZSM-38, ZSM-48, MCM-22, SSZ-20, SSZ-25, SSZ-26, SSZ-32, SSZ-33, SSZ-35, SSZ-37, SSZ-42, SSZ-43, SSZ-44, SSZ-45, SSZ-47, SSZ-58, SSZ-74, SUZ-4, EU-1, NU-85, NU-87, NU-88, IM-5, TNU-9, ESR-10, TNU-10, or a combination thereof, and the second reformer is in parallel flow configuration with the first reformer; and optionally, combining the first reformate, or a fraction thereof, with the second reformate, or a fraction thereof.