METHOD FOR THE OPERATION OF A POWER PLANT FEATURING INTEGRATED GASIFICATION, AND POWER PLANT

摘要

The invention relates to a method for operating a power plant (1) comprising an integrated gasification device (6). In said method, a fossil fuel (26) is gasified and is fed as syngas to a burner (4) associated with a gas turbine (2) for combustion purposes. Oxygen (19) is separated from air (18) by means of a membrane (10) at a process temperature such that oxygen-depleted air (20) is formed. The separated oxygen (19) is fed to the gasification device (6) in order to react with the fossil fuel, and heating energy is fed to the membrane (10) to maintain the required process temperature. Said heating energy is recovered in part from the syngas (17) and in part from the oxygen (19) and/or the oxygen-depleted air (20) in heat exchange with the air (18), and the heated air (18) is fed to the membrane (10).