METHOD FOR OPERATION OF A STEAM TURBINE INSTALLATION, AND ALSO A DEVICE FOR PRODUCING STEAM FROM LOCAL COAL

摘要

1. The method of operation of a steam turbine installation with at least one brown coal heated steam boiler, in which brown coal is dried, preferably indirectly dried in a fluidized bed dryer, which is at least partially heated by steam from the steam-water mixture circulation loop of the steam boiler, the gas from the steam boiler is subjected to absorption cleaning to separate the CO, and the energy necessary for absorption cleaning is taken at least partially from the drying process. 2. The method according to claim 1, characterized in that the residual heat of at least a portion of the secondary steam formed during the drying of brown coal is used to regenerate the saturated CO solvent. A method according to one of claims 1 or 2, characterized in that at least one condensing heat exchanger is used to regenerate a saturated CO solvent, into which at least part of the secondary steam stream from the drying process is supplied. The method according to claim 3, characterized in that the secondary steam supplied to the condensing heat exchanger is compressed to a pressure of 3 to 5 bar, preferably to a pressure of 4 bar (absolute). The method according to claim 4, characterized in that the compression of the secondary steam is carried out using low pressure steam from the steam-water mixture circulation loop of the steam production process. The method according to one of claims 1, 2, 4 or 5, characterized in that a part of the energy necessary for the regeneration of the solvent is selected in the form of low pressure steam from the circulation circuit of the steam-water mixture in a steam turbine. The method according to claim 3, characterized in that part of the energy necessary for the regeneration of the solvent is taken in the form of low-pressure steam from the