Process for removing sulfur from coal
US4105416A · kind A · utility
7Cited by
3References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 1977 |
| Grant date | Aug 8, 1978 |
| Priority date | — |
| Expiry date | Apr 12, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L9/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for reducing the sulfur content of coal comprising the steps of: PA1 (1) contacting coal particles with an aqueous solution of iron complexing agent, and an oxidant to preferentially oxidize at least a portion of the sulfur in the coal; PA1 (2) contacting the oxidized sulfur-containing coal with at least one hydrogen donor material capable of transferring hydrogen to the oxidized sulfur-containing coal under conditions such that hydrogen transfer occurs; and PA1 (3) recovering coal products of reduced sulfur content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.