Marine exhaust denitration system
An exhaust gas and denitration technology, applied in the field of ship exhaust gas denitration system, can solve problems such as large power consumption, rapid aging of electric heating equipment, condensation, etc., to avoid sulfuric acid condensation, reduce equipment corrosion, and improve the effect of denitration efficiency.
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Embodiment 1
[0038] For a 72000DWT bulk carrier, the main engine power is 8000kw, the exhaust gas flow rate is 60000kg / h, and the nitrogen oxide content is 13g / kwh. Using the ship exhaust gas denitrification system of the present invention, the nitrogen oxide content of the treated exhaust gas can reach below 3g / kwh, which can meet the emission requirements of IMO for nitrogen oxides. At the same time, the power consumption saved by preheating and heat preservation of the denitrification reactor is 15kw, and no corrosion caused by sulfuric acid condensation has been found.
Embodiment 2
[0040] For a 150,000DWT crude oil tanker, the main engine power is 15,000kw, the exhaust gas flow rate is about 130,000kg / h, and the nitrogen oxide content is 13.8g / kwh. Using the ship exhaust gas denitrification system of the present invention, the nitrogen oxide content of the treated exhaust gas can reach below 3.2g / kwh, which can meet the emission requirements of IMO for nitrogen oxides. At the same time, the power consumption saved by preheating and heat preservation of the denitrification reactor is 32kw, and no corrosion caused by sulfuric acid condensation has been found.
Embodiment 3
[0042] For a 2000TEU container ship, the main engine power is 17000kw, the exhaust gas flow rate is 150000kg / h, and the nitrogen oxide concentration is 12g / kwh. Using the ship exhaust gas denitrification system of the present invention, the nitrogen oxide content of the treated exhaust gas can reach below 3g / kwh, which can meet the emission requirements of IMO for nitrogen oxides. At the same time, the power consumption saved by preheating and heat preservation of the denitrification reactor is 35kw, and no corrosion caused by sulfuric acid condensation has been found.
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