公开(公告)号：US20200079712A1

公开(公告)日：2020-03-12

申请号：US16613646

申请日：2018-05-17

Applicant: SHELL OIL COMPANY

Inventor： Roel Guillaume Hubertus Leonardus BASTINGS ,  Vesna BOJOVIC ,  Alexandre MOLINA

IPC: C07C29/78 ,  B01J8/04 ,  B01J8/00 ,  B01D53/18 ,  B01D53/14 ,  B01D3/14 ,  B01D5/00

Abstract: Processes and associated reaction systems for the preparation of ethylene carbonate and ethylene glycol from ethylene oxide are provided, particularly processes and associated reaction systems directed to heat integration in the treatment of recycle gas streams.

公开(公告)号：US20210198227A1

公开(公告)日：2021-07-01

申请号：US16769553

申请日：2018-12-06

Applicant: SHELL OIL COMPANY

Inventor： Roel Guillaume Hubertus Leonardus BASTINGS ,  Jesse Raymond BLACK ,  Vesna BOJOVIC ,  Wayne Errol EVANS ,  Gregory John WARD

IPC: C07D317/38 ,  C07C29/50 ,  B01J23/50 ,  B01J21/04 ,  B01D53/04 ,  B01D53/78 ,  B01D53/70

Abstract: A process for producing ethylene glycol and/or ethylene carbonate, said process comprising contacting at least a portion of a recycle gas stream comprising an alkyl iodide impurity with a guard bed system positioned upstream of an ethylene oxide reactor to produce a treated recycle gas stream, wherein the guard bed system comprises silver on alumina; contacting an epoxidation feed stream comprising an ethylene feed stream, oxygen, chloride moderator, and at least a portion of the treated recycle gas stream with an epoxidation catalyst in the ethylene oxide reactor to produce an epoxidation reaction product comprising ethylene oxide; and contacting at least a portion of the epoxidation reaction product comprising ethylene oxide with a liquid absorbent in the presence of an iodide-containing catalyst in an absorber to produce a product stream comprising ethylene carbonate and/or ethylene glycol and the recycle gas stream comprising the alkyl iodide impurity.