Operation of integrated gasification combined cycle power generation systems at part load
US5740673A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1995 |
| Grant date | Apr 21, 1998 |
| Priority date | — |
| Expiry date | Nov 7, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E20/18
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An integrated gas turbine/air separation system is operated at or below full system load by feeding the air separation unit with air from a dedicated air feed compressor and optionally with extracted air from the gas turbine air compressor. When the gas turbine air compressor discharge drops below a selected pressure at part load conditions, the flow of extracted air to the air separation unit is discontinued and the air separation unit operates at constant pressure supplied only by the air feed compressor. This mode of operation is particularly useful in an integrated gasification combined cycle (IGCC) power generation system and allows the design of the oxygen and nitrogen product compressors such that the compressors operate at high efficiency during full load IGCC operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.