Enzymatic coal desulfurization
US5094668A · kind A · utility
6Cited by
11References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 1989 |
| Grant date | Mar 10, 1992 |
| Priority date | — |
| Expiry date | Nov 22, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L9/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Coal is desulfurized by oxidation to convert organic sulfur moieties in the coal matrix to sulfates, and by treatment with a sulfatase to cleave the sulfates and thereby remove organic sulfur.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.