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专利名称：PROCESS FOR DRESSING BROWN COAL FOR
COMBINED GAS AND STEAM PROCESSES
发明人：KROEDEL, BERND, DR.申请号：EP92904443.0申请日：19920213公开号：EP0639214A1公开日：19950222
摘要：The invention concerns a process for dressing brown coal for combined gas andsteam processes in heat-generating installations. The aim of the invention is to achievesubstantial reduction of the CO2 emission per useful effect unit by reduced use of fossilenergy carriers; the devices for drying raw brown coal are to be connected to the heat-generating installation in such a manner that the energy of the exhaust vapours is fullyutilized. To this end, the drying container is operated in conjunction with a pressurizedfluidized bed combustor, a gas turbine, a steam turbine, a pneumatically heated steamintermediate heater and a waste heat boiler; the drying energy for the drying container isobtained from saturated steam from the waste heat boiler of the combined process; theenergy content of the de-dusted exhaust vapours under medium pressure is used toevaporate a partial flow of feed water; the gas turbine is operated with exhaust gasesfrom the pressurized fluidized bed combustor; condensed combustion air is used forintermediate superheating of the steam, with cooling of the combustion air; and theexhaust vapour condensate formed by energetic connection is prepared and used tosupply water for the circulation process.
申请人：VEAG VEREINIGTE ENERGIEWERKE AKTIENGESELLSCHAFT
地址：Allee der Kosmonauten 29 D-12681 Berlin DE
国籍：DE
代理机构：Zinken-Sommer, Rainer
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