selective catalytic reduction DeNOx manufacturer/boiler flue gas removal technology
Low nitrogen oxide combustion technology is to improve the combustion equipment or control the combustion conditions, using a variety of combustion means in the furnace to control the production of NOx in the combustion process, in order to reduce the NOx in the tail gas of the combustion technology.
SNCR (Selective Non-Catalytic Reduction) is a selective non-catalytic reduction method. It is an economical and practical NOx removal technology. Its principle is based on NH3, urea [CO (NH2) 2], etc. Before the boiler is atomized or injected into the boiler, it is atomized by the heat in the furnace. Sprayed into the furnace temperature range of 800 ℃ ~ 1100 ℃, the reducing agent quickly thermally decomposed into NH3 and other by-products, and then NHCR and NOx in the flue gas undergo SNCR reaction to generate N2. It can therefore be considered a selective chemical process. The reducing agent has different reaction temperature ranges. This temperature range is called a temperature window, which has a great influence on the denitration efficiency of the method.
SCR (Selective Catalytic Reduction) is a selective catalytic reduction technology. At present, ammonia catalytic reduction method is the most widely used technology. It has no by-products, no secondary pollution, simple device structure, high removal efficiency (up to 90%), reliable operation, and easy maintenance. Selectivity means that in the presence of oxygen and in the presence of oxygen, NH3 preferentially undergoes a reduction and removal reaction with NOx to form nitrogen and water, without oxidizing with the oxygen in the flue gas.
Ozone oxidation deritification mainly USES the strong oxidization of ozone to oxidize the insoluble low-value nitrogen oxides into soluble high-value nitrogen oxides, and then absorbs the nitrogen oxides in the scrubber tower to achieve thepurpose of removal. The denitification system can remove NOx, sulfur dioxide, paticulate matter and other pollutants in the fue gas with high efciency at dfferent concentrations and ratios of NOx and other pollutants, without afecting other pollutant control technologies. It is an eficient supplement or alternative to the traditional denitrification technology.
| No. | Equipment name | Air volume (m3/h) | Size (L*W*H) |
| 1 | SCR denitration |
50,000 |
2,650*1,800*18,500mm |
| 2 | 100,000 | 3,355*2,380*18,500mm | |
| 3 | 150,000 | 4,175*2,980*18,500mm | |
| 4 | 200,000 | 5,000*3,600*18,500mm | |
| 5 | 250,000 | 5,800*4,200*18,500mm | |
| 6 | 300,000 | 6,400*4,800*18,500mm | |
| 7 | 350,000 | 7,200*5,400*18,500mm | |
| 8 | 400,000 | 8,000*6,000*18,500mm |
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