公开(公告)号：US20200017780A1

公开(公告)日：2020-01-16

申请号：US16471736

申请日：2017-12-21

Applicant: SHELL OIL COMPANY

Inventor： Eglantine Armelle Christiane Colette Marie ALBE ,  Godfried Johannes AARTS ,  José Luís MONIZ JARDIM ,  Cornelis Hyacinthus Maria VAN DER HULST ,  Eduard Philip KIEFFER ,  Edward Julius CREYGHTON

IPC: C10G73/12 ,  C10G21/16 ,  C10G21/28

Abstract: The present invention relates to a method for reducing the cloud point of a Fischer-Tropsch derived fraction to below 0° C., wherein the method comprises subjecting the Fischer-Tropsch derived fraction to a cloud point reduction step comprising mixing the Fischer-Tropsch derived fraction, which comprises more than 80 wt. % of paraffins and 90 wt. % of saturates, with a solvent mixture (16), wherein the solvent mixture (16) comprises a paraffinic naphtha fraction (7) and a co-solvent (15); and subjecting the solvent treatment mixture (23) to a solvent de-waxing step (17).

公开(公告)号：US20220025278A1

公开(公告)日：2022-01-27

申请号：US17277646

申请日：2019-08-28

Applicant: SHELL OIL COMPANY

Inventor： Nariman BOUMENDJEL ,  Ralf Gunnar MEISTER ,  Cornelis Hyacinthus Maria VAN DER HULST ,  Nicolaas VAN DIJK

IPC: C10G65/12 ,  C10M101/02

Abstract: A process for producing a base oil composition from a deasphalted oil (DAO) feed, where the DAO feed undergoes hydrotreating, hydrocracking, catalytically dewaxing, hydrofinishing, and fractionating to generate the base oil composition. The base oil composition includes a hazy-free at 0° C. heavy base oil comprising (a) a kinetic viscosity ranging from 15 to 21 cSt at 100° C., (b) a 5 viscosity index of at least 95, (c) a pour point of less than −12° C., (d) a cloud point of less than −18° C., and (e) a total aromatics content of 2 wt % or less, where the hazy-free at 0° C. heavy base oil maintains a hazy-free appearance when stored undisturbed at 0° C. during a test period.

公开(公告)号：US20200087581A1

公开(公告)日：2020-03-19

申请号：US16471639

申请日：2017-12-21

Applicant: SHELL OIL COMPANY

Inventor： Eglantine Armelle Christiane Colette Marie ALBE ,  Godfried Johannes AARTS ,  José Luís MONIZ JARDIM ,  Cornelis Hyacinthus Maria VAN DER HULST ,  Ralf Gunnar MEISTER

IPC: C10G21/02 ,  C10G21/16 ,  C10G21/28 ,  C10G61/04

Abstract: The present invention relates to a method for reducing the cloud point of a base oil with high saturates/paraffinic content to below 0° C., wherein the method comprises subjecting said base oils to a cloud point reduction step comprising adding said base oil to a solvent mixture, wherein the solvent mixture comprises a paraffin naphtha fraction and a co-solvent to obtain a solvent treatment mixture; and subjecting the solvent treatment mixture to a solvent de-waxing step.