Method for preparing dimethylether using a membrane reactor for separation and reaction
US6822125B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 2003 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | Jun 9, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C41/09
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a method for preparing dimethylether from methanol using a membrane reactor, more particularly to a method for preparing dimethylether from methanol using a membrane capable of carrying out a reaction and a separation at the same time while preparing dimethylether from methanol. Because water vapor generated by dehydration of methanol can be selectively removed from the catalytic reaction zone, decrease in catalytic activity can be prevented and thus life span of a catalyst can be extended. Further, reaction efficiency can be improved even at a temperature milder than the conventional one for dimethylether preparation, and also additional steps of separation and purification after completion of the reaction is no longer necessary.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.