Combustion turbine and elevated pressure air separation system with argon recovery
US5722259A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1996 |
| Grant date | Mar 3, 1998 |
| Priority date | — |
| Expiry date | Mar 13, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S62/915
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An integrated gasification combined cycle (IGCC) power generation system is operated with a cryogenic air separation system which produces oxygen used in a gasification system to produce fuel gas for the IGCC combustion turbine and pressurized nitrogen which is introduced into the combustor for control of nitrogen oxides and increased combustion turbine output. The air separation system produces argon as an additional product, and the air separation system preferably operates in the feed pressure range of about 100 to about 160 psia. The compressed air feed for the air separation system and the compressed combustion air for the IGCC system are provided independently in separate compression steps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.