Invention Grant
- Patent Title: Process for dehydrating methanol to dimethyl ether product
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Application No.: US16641637Application Date: 2018-08-24
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Publication No.: US11673851B2Publication Date: 2023-06-13
- Inventor: Benjamin James Dennis-Smither , Neil Sainty , John Glenn Sunley
- Applicant: BP P.L.C. , BP (CHINA) HOLDINGS LTD
- Applicant Address: GB London
- Assignee: BP p.l.c.,BP (China) Holdings Ltd
- Current Assignee: BP p.l.c.,BP (China) Holdings Ltd
- Current Assignee Address: GB London; CN Shanghai
- Agency: McDonnell Boehnen Hulbert & Berghoff LLP
- Priority: WO TCN2017098885 2017.08.24
- International Application: PCT/CN2018/102137 2018.08.24
- International Announcement: WO2019/037768A 2019.02.28
- Date entered country: 2020-02-24
- Main IPC: C07C41/09
- IPC: C07C41/09 ; B01J29/10 ; B01J29/18 ; B01J29/70 ; B01J35/02 ; C07C43/04
Abstract:
A process the dehydration of methanol to dimethyl ether in the presence of a solid Brønsted acid catalyst selected from aluminosilicate zeolites which have a maximum free sphere diameter of greater than 3.67 Angstroms and heteropolyacids and a promoter selected from methyl formate, dimethyl oxalate and dimethyl malonate and the molar ratio of promoter to methanol is maintained at less than 1.
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