Combined gas and steam turbine plant with coal gasification
US5079909A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 1990 |
| Grant date | Jan 14, 1992 |
| Priority date | — |
| Expiry date | Jun 22, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E20/18
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A combined gas and steam turbine plant includes a coal gasification system having a heat exchanger device and preferably a gas scrubber connected downstream of the heat exchanger device. A gas turbine part is connected downstream of the coal gasification system and has an exhaust gas turbine. A steam generator system receives exhaust gas from the exhaust gas turbine and has an economizer heating surface, an evaporator heating surface, and superheater heating surfaces. A steam turbine part is connected to the steam generator system and has a high-pressure feedwater system. The heat exchanger device of the coal gasification system is connected in such a way that it directly transfers or gives up thermal energy for feedwater heating or steam generation to the high-pressure feedwater system of the steam turbine part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.