Production of pipeline gas from coal
US4410336A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 24, 1982 |
| Grant date | Oct 18, 1983 |
| Priority date | — |
| Expiry date | Feb 24, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10J2300/1675
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for producing pressurized pipeline gas wherein coal is gasified in oxygen at a relatively low pressure, typically less than 5 atmospheres, to produce a raw gas containing carbon monoxide, hydrogen, carbon dioxide, gaseous sulfur compounds and particulates. A major portion of the raw gas is cooled, cleaned and methanated to produce a pipeline quality product gas consisting essentially of methane. The remaining portion of the raw gas is cleaned, compressed and combusted to produce a high temperature, high pressure flue gas which is used to power a gas turbine and generate steam to power a steam turbine. The gas turbine and steam turbine each drive compressors for compressing the low pressure product gas to pipeline pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.