Diesel power generation waste gas treatment-Guangdong GRVNES Environmental Protection Technology Co., Ltd.

Diesel power generation waste gas treatment

Nitrogen oxides in the exhaust gas of diesel generator set are gases formed by the oxidation of nitrogen in the cylinder at high temperature, mainly composed of nitric oxide and nitrogen dioxide. Green Valley environmental protection aims at the treatment equipment of PM (particulate matter) and NOx (nitrogen oxide) in the exhaust gas of diesel generator set. Green Valley company has developed the integrated design of particle trap and SCR denitration system. The particle trap is used to treat the PM (particulate matter) in the waste gas to make it meet the environmental protection standard; SCR denitration system aims at NOx (nitrogen oxide) in waste gas to make it meet local environmental protection standards (specific standards are customized according to customer requirements).

Key words:

generation and diesel power to small ammonia generator the

Category:

Unit waste gas treatment

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+86-769-89957788

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Technology Introduction

Diesel generator is a small power generation equipment, which refers to the power machinery that uses diesel as fuel and diesel engine as prime mover to drive the generator to generate electricity. The whole unit is generally composed of diesel engine, generator, control box, fuel tank, starting and control battery, protection device, emergency cabinet and other components. It can be used for daily power generation and emergency power generation in various families, offices, large, medium and small enterprises.

Technical advantages

1. Fast reaction speed

2. It can be applied to denitration at low, medium and high temperatures

3. Mature and reliable technology, high denitration efficiency and reducing ammonia escape

4. Uniform ammonia injection, small resistance, less ammonia consumption and relatively low operation cost

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Selective catalytic reduction (SCR) is used to control NOx in diesel engine exhaust. NH3 or urea (usually urea aqueous solution with mass ratio of 32.5%) is used as reducing substance. Under the condition that O2 concentration is more than two orders of magnitude higher than NOx concentration, under the action of certain temperature and catalyst, NH3 is used to reduce NOx to N2 and H2O. Because NH3 is highly selective, NOx is preferentially reduced, It does not react with O2 first, so it is called "selective catalytic reduction". For excess NH3, a certain proportion of ammonia escape catalyst (ASC) is coated at the end of SCR carrier to ensure that NH3 reacts with O2 to generate N2 and H2O and avoid secondary pollution caused by NH3 leakage. The exhaust temperature after diesel engine or gas engine turbine is generally in the range of 300 ℃ to 500 ℃, which meets the temperature conditions required for medium temperature catalytic reaction. If the temperature after vortex is higher than 500 ℃, high-temperature catalyst shall be considered, and the system cost will increase in a certain proportion.

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