公开(公告)号：US20230090561A1

公开(公告)日：2023-03-23

申请号：US17798450

申请日：2021-02-11

Applicant: CHEVRON ORONITE COMPANY LLC ,  CHEVRON U.S.A. INC.

Inventor： Andrew R. GIBBS ,  Sven Ivar HOMMELTOFT

IPC: C07C39/06 ,  C10M129/10

Abstract: The present disclosure provides a hydroxyaromatic product. The alkyl hydroxyaromatic compound having a structure given by where R is a hydroxyaromatic group, X is hydrogen or methyl group and where n is 1 or greater.

公开(公告)号：US20250027000A1

公开(公告)日：2025-01-23

申请号：US18773287

申请日：2024-07-15

Applicant: CHEVRON U.S.A. INC.

Inventor： Sven Ivar HOMMELTOFT ,  Krege CHRISTISON ,  Michelle YOUNG

IPC: C10L1/06 ,  C11C3/12

Abstract: A reactor system includes a ketopyrolysis zone in which a metal oxide catalyst reacts with a lipid feedstock to produce a renewable fuel intermediate composition. The renewable fuel intermediate composition includes a jet fuel fraction in which a non-aromatic cyclic hydrocarbon content exceeds an acyclic isoalkane content. The renewable fuel intermediate composition is hydrotreated to produce a fuel composition that includes a jet fuel component with a freezing point less than −15° C.

公开(公告)号：US20240239726A1

公开(公告)日：2024-07-18

申请号：US18576716

申请日：2022-05-16

Applicant: CHEVRON U.S.A. INC.

Inventor： Sven Ivar HOMMELTOFT

IPC: C07C2/34 ,  C07C11/06

CPC classification number: C07C2/34 ,  C07C11/06 ,  C07C2531/14 ,  C07C2531/22

Abstract: A method for making a propylene oligomer having a high vinylidene content and a high degree of structural regularity and the propylene oligomer made therefrom. The method of making the propylene oligomer comprises contacting an unbridged metallocene complex with a propylene composition in the presence of a modified methyl aluminum oxide activator compound under suitable oligomerization conditions. The use of the combination of a modified methyl aluminum oxide activator compound with an unbridged metallocene complex has been found to provide increased vinylidene group content and reduced hydrogenated propylene oligomer content.

公开(公告)号：US20240157347A1

公开(公告)日：2024-05-16

申请号：US18054281

申请日：2022-11-10

Applicant: CHEVRON U.S.A. INC.

Inventor： Sven Ivar HOMMELTOFT

IPC: B01J23/92 ,  B01D15/18 ,  B01J21/04 ,  C08H8/00

CPC classification number: B01J23/92 ,  B01D15/1828 ,  B01J21/04 ,  C08H8/00 ,  B01D2215/027 ,  B01J2523/23 ,  B01J2523/31

Abstract: A process is provided for producing reduced acid lignocellulosic-derived bio-oil. treating a lignocellulosic biomass feedstock in a moving bed reactor with a metal oxide catalyst on an oxide support under treating conditions to produce a treated stream; directing spent metal oxide catalyst from the moving bed reactor to a fluidized bed regenerator, the spent metal oxide catalyst resulting from treating the lignocellulosic biomass feedstock with the metal oxide catalyst; regenerating the spent metal oxide catalyst in the fluidized bed regenerator by removing coke from the spent metal oxide catalyst in a combustion process that regenerates the spent metal oxide catalyst into the metal oxide catalyst; and returning to the moving bed reactor the metal oxide catalyst that has been regenerated in the fluidized bed regenerator. The obtained bio-oil is particularly suitable as a renewable feedstock for hydroprocessing in biofuel manufacture.