Invention Grant
- Patent Title: Magnetic separation and recycle of catalyst components in a bio-mass to glycols process
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Application No.: US16328085Application Date: 2017-08-30
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Publication No.: US10519086B2Publication Date: 2019-12-31
- Inventor: Duraisamy Muthusamy , Viet Quoc Nguyen
- Applicant: SHELL OIL COMPANY
- Applicant Address: US TX Houston
- Assignee: SHELL OIL COMPANY
- Current Assignee: SHELL OIL COMPANY
- Current Assignee Address: US TX Houston
- International Application: PCT/US2017/049270 WO 20170830
- International Announcement: WO2018/044971 WO 20180308
- Main IPC: C07C29/76
- IPC: C07C29/76 ; B01J23/00 ; B01J25/00 ; B01J23/30 ; B01J25/04 ; B01J35/00 ; B01J38/72 ; C07C29/141 ; C07C31/20

Abstract:
Implementations of the disclosed subject matter provide a process for producing ethylene glycol from a carbohydrate feed. The process may include contacting, in a reactor under hydrogenation conditions, the carbohydrate feed with a bi-functional catalyst system which may include a heterogeneous hydrogenation catalyst including a magnetically active metal, and a soluble retro-Aldol catalyst including tungstate. A liquid effluent stream may be obtained from the reactor and may include hydrogenation catalyst particles and tungsten oxide precipitate particles. The hydrogenation catalyst particles may be magnetically separated from the tungsten oxide precipitate particles in the liquid effluent stream using a magnet in a separation vessel. The separated hydrogenation catalyst particles may be retained in a separation zone in the separation vessel and may be subsequently removed from the separation zone. A liquid product stream may be obtained from the separation vessel and may include the tungsten oxide precipitate particles and ethylene glycol.
Public/Granted literature
- US20190185398A1 MAGNETIC SEPARATION AND RECYCLE OF CATALYST COMPONENTS IN A BIO-MASS TO GLYCOLS PROCESS Public/Granted day:2019-06-20
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