Method of forming a feed for coal gasification
US6664302B2 · kind B2 · utility
18Cited by
16References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2002 |
| Grant date | Dec 16, 2003 |
| Priority date | — |
| Expiry date | Jun 13, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E20/18
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention provides a method by which low-rank coal may be processed to provide a high-energy feedstock for coal gasification and synthesis gas production. Preliminary coal, preparation, which may include washing and drying, is followed by wax-impregnation to produce a high-energy, low-moisture, stable feedstock. The wax is preferably obtained from an on-site Fischer-Tropsch reactor that also produces diesel fuel and naptha.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.