Production of distillates by the integration of supercritical extraction and gasification through methanol to gasoline
US4447310A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 1982 |
| Grant date | May 8, 1984 |
| Priority date | — |
| Expiry date | Jun 23, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S208/952
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for producing a wide slate of fuel products from coal is provided by integrating a methanol-to-gasoline conversion process with coal liquefaction and coal gasification. The coal liquefaction comprises contacting the coal with a solvent under supercritical conditions whereby a dense-gas phase solvent extracts from the coal a hydrogen-rich extract which can be upgraded to produce a distillate stream. The remaining coal is gasified under oxidation conditions to produce a synthesis gas which is converted to methanol. The methanol is converted to gasoline by contact with a zeolite catalyst. Solvent for coal extraction is process derived from the upgraded distillate fraction or gasoline fraction of the methanol-to-gasoline conversion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.