Process of producing liquid hydrocarbon oil or dimethyl ether from lower hydrocarbon gas containing carbon dioxide
US6806296B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2003 |
| Grant date | Oct 19, 2004 |
| Priority date | — |
| Expiry date | Aug 28, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B2203/1264
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for the production of a liquid hydrocarbon oil from a gas feed containing a lower hydrocarbon and CO2, wherein the gas feed is mixed with H2O to obtain a mixed gas having specific CO2, H2O and lower hydrocarbon contents. The mixed gas is contacted with a Rh, Ru/MgO catalyst having a specific surface area of 5 m2/g or less to produce a synthesis gas with a carbon conversion efficiency Cf of at least 50%. The thus obtained synthesis gas having a H2/CO molar ratio of 1.5-2.5 is reacted in the presence of a Fischer-Tropsch catalyst to obtain a liquid hydrocarbon oil, while the synthesis gas having a H2/CO molar ratio of 0.5-1.5 is reacted in the presence of one or more catalysts having methanol synthesizing, dehydrating and CO shift reaction activities to obtain dimethyl ether.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.