Process of preparing a mixture of dimethyl ether and methanol from carbon dioxide
US6248795A · kind A · utility
3Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2000 |
| Grant date | Jun 19, 2001 |
| Priority date | — |
| Expiry date | Jun 16, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention relates to the process of preparing from carbon dioxide a mixture of dimethyl ether and methanol which are useful as clean fuel or raw materials in the chemical industry. More particularly, this invention relates to the process of preparing dimethyl ether and methanol in high yield without by-products such as hydrocarbons by means of chemical conversion of carbon dioxide, which is a major pollutant of the global environment, in the presence of a mixture of catalysts comprising Cu/ZnO-based catalyst and Y-type zeolite catalyst having a strong acidity with the pK.sub.a value of -6.0--3.0.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.