EXHAUST GAS TREATMENT DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an exhaust gas treatment device for removing nitrogen oxide in low-temperature exhaust gas from a large diesel engine at a high NOx removal efficiency.

SOLUTION: A blow-in pipe 4 is inserted into an exhaust gas pipe 3 for exhaust gas 2 from the large diesel engine 1 in the radial direction so that its end is protruded therefrom, and a heater 5 is installed in a portion of the blow-in pipe 4 outside the exhaust gas pipe 3. A hydrocarbon compound 6 and a nitrogen compound 7 heated in the blow-in pipe 4 by the heater 5 are supplied through a blow-out portion 11 formed at the end of the blow-in pipe 4 into the exhaust gas pipe 3.

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