公开(公告)号：US20230132628A1

公开(公告)日：2023-05-04

申请号：US17915279

申请日：2021-02-12

Applicant: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY

Inventor： Joshua D. Catanach ,  Clara Rodrigue ,  Christine A. Zielinski ,  Charles L. Baker, JR. ,  Richard C. Dougherty ,  Min Chen

IPC: C10M169/04 ,  C10G67/04

Abstract: Provided herein are hydrocarbon compositions suitable for use as a lubricant comprising sulfur between about 30 ppm to about 220 ppm, and aromatics between about 0.2 wt. % to about 3 wt. %. The present hydrocarbon compositions comprise a blend of one or more base stocks and a high-sulfur containing material and can demonstrate an improved oxidation performance as a lubricant in weighted piston deposit merits and/or by viscosity increase.

公开(公告)号：US11441080B2

公开(公告)日：2022-09-13

申请号：US16742317

申请日：2020-01-14

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Richard C. Dougherty ,  Kristin L. Sanfilippo ,  Christine A. Zielinski ,  Charles L. Baker, Jr.

IPC: C10G9/32 ,  C10B55/10 ,  C10B57/16 ,  C10N70/00

Abstract: Systems and methods are provided for co-processing of used lubricant oils with a coker feedstock in a fluidized coking process to form lubricant base stocks. The fluidized coking process can remove contaminants and/or additives from used lubricant oils with modest conversion of the lubricant boiling range portion.

公开(公告)号：US12234424B2

公开(公告)日：2025-02-25

申请号：US17915279

申请日：2021-02-12

Applicant: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY

Inventor： Joshua D. Catanach ,  Clara Rodrigue ,  Christine A. Zielinski ,  Charles L. Baker, Jr. ,  Richard C. Dougherty ,  Min Chen

IPC: C10M169/04 ,  C10G67/04 ,  C10N20/00 ,  C10N20/02 ,  C10N30/00 ,  C10N30/10

Abstract: Provided herein are hydrocarbon compositions suitable for use as a lubricant comprising sulfur between about 30 ppm to about 220 ppm, and aromatics between about 0.2 wt. % to about 3 wt. %. The present hydrocarbon compositions comprise a blend of one or more base stocks and a high-sulfur containing material and can demonstrate an improved oxidation performance as a lubricant in weighted piston deposit merits and/or by viscosity increase.

公开(公告)号：US20230159852A1

公开(公告)日：2023-05-25

申请号：US17919195

申请日：2021-03-17

Applicant: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY

Inventor： Christine A. Zielinski ,  Paul C. Naegely ,  Meha H. Shah ,  Charles L. Baker, Jr. ,  Chengrong Wang

IPC: C10M175/00

CPC classification number: C10M175/0041 ,  C10M175/005 ,  C10M175/0033

Abstract: In an embodiment is provided a process to re-refine used oil that includes introducing a used oil and a solvent to a separation unit under separation conditions selected to produce a purified oil product, the separation unit comprising a porous membrane, a semiporous membrane, or both; and separating the used oil to obtain an effluent comprising a purified oil product. In another embodiment is provided an apparatus for re-refining used oil that includes a separation unit comprising a porous or semiporous membrane; a used oil feed coupled to an inlet of the separation unit; and an inlet of a diffusate collection unit coupled to an outlet of the separation unit. In another embodiment is provided a composition generated from a membrane separation process that includes a base oil, the composition having a soot content of about 0.05% or less.