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

Claim 13:
14. A method for modifying a catalytic reforming process, wherein, the catalytic reforming process comprises a first reformer comprising a first reforming catalyst primarily selective for reforming C8+ hydrocarbons to aromatic hydrocarbons;
the method comprising,
separating a hydrocarbonaceous feed to the first reformer predominantly comprising a naphtha fraction into a first feedstream predominantly comprising C8+ hydrocarbons and a second feedstream predominantly comprising C7− hydrocarbons;
adding a second reformer to the catalytic reforming process, in parallel flow configuration with the first reformer, the second reformer comprising a second reforming catalyst primarily selective for reforming C7− hydrocarbons to aromatic hydrocarbons;
wherein the modified catalytic reforming process comprises:
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, in a second reformer comprising the 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
optionally, combining the first reformate, or a fraction thereof, with the second reformate, or a fraction thereof.