公开(公告)号：US10934496B2

公开(公告)日：2021-03-02

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：US11078430B2

公开(公告)日：2021-08-03

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 ,  C10G21/04 ,  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.