Process for dehydrating methanol to dimethyl ether
US11066350B2 · kind B2 · utility
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21Claims
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Key dates
| Filing date | Aug 23, 2018 |
| Grant date | Jul 20, 2021 |
| Priority date | — |
| Expiry date | Aug 23, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J29/7042
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for dehydrating methanol to dimethyl ether product in the presence of an aluminosilicate zeolite catalyst and a promoter selected from (i) aldehyde of formula R1CHO (Formula I) in which R1 is hydrogen, a C1-C11 alkyl group or a C3-C11 alkyl group in which 3 or more carbon atoms are joined to form a ring; or (ii) acetal derivative of an aldehyde of Formula I; and the molar ratio of promoter to methanol is maintained at 0.1 or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.