Technical and Economic Analysis of Marine Exhaust Gas Denitration Scheme
In order to provide the optimal scheme for the emission reduction of marine ex-haust gas nitrogen oxide,the denitration technology used for ship exhaust gas treatment is compared,and the technical and economic analysis of the feasible marine SCR denitration and ozone oxidation denitration is made based on the method of scheme comparison and benefit calculation.The results showed that the operating cost of SCR denitration includes urea consumption,power consumption,fresh water consumption,compressed air consump-tion and catalyst replacement,and the total operating cost is 107.3 yuan/h.The operating cost of ozone oxidation denitration includes power consumption,and the total operating cost is 875.3 yuan/h.The power consumption of SCR denitration system and ozone oxidation denitration system accounts for 0.46%and 12.78%of the total power of diesel engine re-spectively.SCR denitration has less burden on the marine power supply system and no wastewater,and it is considered that SCR denitration is of high technical feasibility and good economy when used for marine exhaust gas treatment.
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