公开(公告)号：US20250145750A1

公开(公告)日：2025-05-08

申请号：US18932780

申请日：2024-10-31

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Eric P. Jourdain ,  Meha H. Shah ,  Elumalai Jayaraman ,  Bernard D'Cruz ,  Serge Riffard ,  Scott H. Loyd ,  Sunny Jacob ,  Rugved P. Pathare

IPC: C08F236/04 ,  C08F236/20 ,  C08K5/01

Abstract: A method for using a saturated paraffinic process oil may include: curing an ethylene-propylene-diene-monomer (EPDM) composition to form an EPDM article, wherein the EPDM composition comprises EPDM rubber and a saturated paraffinic process oil, wherein the saturated paraffinic process oil comprises: a kinematic viscosity at 100° C. in a range of 14 cSt to 45 cSt; a sulfur content of less than 0.03 wt. %; a saturates content of at least 90 wt. %; a T5 distillation point of at least 480° C.; an aniline point in a range of about 130° C. to about 150° C.; a refractive index at 20° C. in a range of 1.460-1.490; and a sum of terminal/pendant propyl groups and terminal/pendant ethyl groups of at least 1.7 per 100 carbon atoms of the composition

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.