Patent ID: 9273900
Filing Date: 2016-03-01
CPC Classification: B01D,F01N,F23J,F23L,F25J,Y02E

Claim Text:
1. An exhaust gas treatment system for an oxyfuel combustion device for removal of impurities in exhaust gas from the oxyfuel combustion device comprising: a front impurity-removing device with a compressor for compressing the exhaust gas from the oxyfuel combustion device to make the impurities in the exhaust gas water-soluble and with a cooler for cooling the exhaust gas compressed by the compressor to condense moisture in the exhaust gas, thereby discharging drainage with the impurities dissolved therein; at least a single rear impurity-removing device with a rear compressor for compressing the exhaust gas to a pressure higher than that of the first-mentioned compressor and with a rear cooler for cooling the exhaust gas compressed by the rear compressor to condense moisture in the exhaust gas, thereby discharging the drainage with the impurities dissolved therein; a front cooler upstream of the compressor in the front impurity-removing device for cooling the exhaust gas from the oxyfuel combustion device, thereby discharging the drainage with the impurities dissolved therein; and a sprayer for spraying water upstream of the front cooler to humidify the exhaust gas from the oxyfuel combustion device to thereby produce the drainages in the front cooler.