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A polymer and denitration agent technology, applied in the field of boiler flue gas denitrification, can solve the problems of expensive catalyst life, catalyst activity degradation, flue gas preheating, etc., achieve good application prospects, reduce activation energy, and treat temperature range broad effect
Inactive Publication Date: 2018-06-22
HEBEI YAO YI ENERGY SAVING & ENVIRONMENTAL MFG CO LTD
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Dry flue gas denitrification usually adopts selective catalytic reduction denitrification reaction or selective non-catalytic reduction denitrification reaction. The catalytic reduction denitration reaction technology is relatively mature and reliable, and it is widely used in the world, especially in developed countries. The catalysts can be divided into high temperature catalysts (345 ℃~590℃), medium temperature catalysts (260℃~380℃) and low temperature catalysts (80℃~300℃), the suitable reaction temperature of different catalysts is different, if the reaction temperature is low, the denitrific
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Embodiment 1
[0022] This embodiment relates to a polymer dry denitrification agent and its preparation.
Embodiment 11
[0024] A polymer dry denitration agent, including raw material components: 42 parts of urea, 13 parts of melamine, 20 parts of 40-mesh activated wood powder, 13 parts of magnesium oxide, 12 parts of sodium carbonate, 21 parts of bentonite, 14 parts of quicklime, iron red 1.0 copies;
[0025] Control the particle size of each raw material component from 20 to 120 mesh by selection or grinding operation, weigh each raw material component according to the proportion, first mix iron red and melamine, then add magnesium oxide, then add urea, mix well and then add in order Active wood powder, sodium carbonate, bentonite, and quicklime are fully stirred evenly to obtain a polymer dry denitrification agent.
Embodiment 12
[0027] A polymer dry denitrification agent, including raw material components: 46 parts of urea, 10 parts of cyanuric acid, 28 parts of 60-mesh active wood powder, 12 parts of magnesium oxide, 14 parts of sodium carbonate, 23 parts of bentonite, and 16 parts of quicklime , 1.1 parts of manganese dioxide;
[0028] Control the particle size of each raw material component from 20 to 120 mesh by selection or grinding operation, weigh each raw material component according to the proportion, first mix manganese dioxide and cyanuric acid, then add magnesium oxide, then add urea, and mix well Then add active wood powder, sodium carbonate, bentonite, and quicklime in turn, and stir well to obtain a polymer dry denitrification agent.
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Abstract
The invention discloses a macromolecular dry denitrifying agent. The agent is prepared from components of raw materials in parts by weight as follows: 40-50 parts of urea, 10-20 parts of melamine and/or cyanuric acid, 20-30 parts of organic activated carbon powder, 10-15 parts of magnesium oxide, 10-15 parts of sodium carbonate, 20-25 parts of bentonite, 10-20 parts of quicklime and 1.0-1.2 partsof a catalyst. Meanwhile, the invention also provides a preparation method of the macromolecular dry denitrifying agent as well as a denitrifying technology and denitrifying equipment using the macromolecular dry denitrifying agent. The denitrifying agent obtained with the technical scheme is simple to prepare and low in cost. The dry denitrifying technology and denitrifying equipment using the denitrifying agent can treat flue gas with wider temperature ranges, have high denitrifying efficiency, have no ammonia escape and other side effects and have good application prospects.
Description
technical field [0001] The invention relates to the technical field of boiler flue gas denitrification, in particular to a polymer dry denitrification agent, a preparation method of the denitrification agent, a denitrification process and a denitrification equipment using the denitrification agent. Background technique [0002] With the development of modern industrial production in our country, air pollution is becoming more and more serious, leading to the frequent occurrence of smog weather, which is called the "invisible killer" of human health, seriously affecting people's life and health. Nitrogen oxide NO X Pollution is one of the main sources of smog. At present, NO X The most effective means of emission is to denitrify the flue gas. There are many types of flue gas denitrification technologies. According to whether water is added to the denitrification process and the dry and wet form of the denitrification products, flue gas denitrification is divided into wet flu...
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