SCR denitration system | internal-combustion engine oxide NOx emission control

Release time:

2022-11-18

Diesel exhaust NOx control is mainly the selection of selective catalytic reduction method, the use of NH3 and urea as reducing substances, under a certain temperature and catalyst, the use of NH3 to reduce NOx to N2 and H2O. For NOx control in engine exhaust, directional research and development of control system should be carried out according to different brands of internal combustion engines. If diesel is used as fuel and the engine set is used for standby emergency use, two conditions should be considered in design: 1, the fuel use of national IV or above diesel; 2, acceptance, the generator set must be loaded; If the PM meets or fails, the solution is different.

Nitrogen oxides have a significant impact on air pollution, is the most harmful, but also one of the most difficult to deal with pollutants, with the rapid development of social emergency, effective control of nitrogen oxides caused by air pollution has been urgent. Nitrogen oxides are mainly nitric oxide (NO) and nitrogen dioxide (NO2). The emission of nitrogen oxides leads to the destruction of the ozone layer, the greenhouse effect, acid rain and photochemical smog.

1, the fuel use of national IV or above diesel;

2, acceptance, the generator set must be loaded;

If the PM meets or fails, the solution is different.

Case study - Guangxi Power Plant Project

Project type: Diesel engine NOx treatment

Matching model: PerKins standby power 2MW generator set

Product model: GV60-GETX-24

Quantity purchased: 11 sets

For the treatment of exhaust NOx of gas engines, the paths, costs and service life of different fuels are different, and the drinking water considered is also different. It is necessary to consider the situation of fuel desulfurization and the influence of siloxane produced by fuel mixture gas at high temperature on SCR catalyst, and the treatment cost is relatively high. At the application end, the Green Valley team developed a cost-effective and reasonable siloxane avoidance system to save landfill power station owners maintenance and operation costs of generating units.

Case study - a landfill project in Shenzhen

Project type: Landfill gas engine NOx treatment

Matching model: 1MW firewood generator set

Product model: GRVNES-GETX-24

Quantity purchased: 1 set

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