US 11,939,537 B2
Reforming process
Cong-Yan Chen, Kensington, CA (US); and Emmanuel Behraz, Richmond, CA (US)
Assigned to Chevron U.S.A. Inc., San Ramon, CA (US)
Appl. No. 17/605,286
Filed by Chevron U.S.A. Inc., San Ramon, CA (US)
PCT Filed Apr. 21, 2020, PCT No. PCT/IB2020/053747
§ 371(c)(1), (2) Date Oct. 21, 2021,
PCT Pub. No. WO2020/217163, PCT Pub. Date Oct. 29, 2020.
Claims priority of provisional application 62/836,717, filed on Apr. 21, 2019.
Prior Publication US 2022/0243137 A1, Aug. 4, 2022
Int. Cl. C10G 59/06 (2006.01); B01D 3/00 (2006.01); B01J 29/40 (2006.01)
CPC C10G 59/06 (2013.01) [B01D 3/00 (2013.01); B01J 29/40 (2013.01); C10G 2300/1044 (2013.01); C10G 2300/308 (2013.01); C10G 2300/4018 (2013.01); C10G 2400/02 (2013.01)] 27 Claims
OG exemplary drawing
 
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.