Introduction to low-temperature denitrification catalysts
Publishdate：2021-03-27 Views：44
Manufacturer of denitrification catalyst:Denitration catalyst manufacturer: A brief introduction was given to the relevant concepts of low-temperature denitration catalysts. And the catalyst was selected as the introduction object, and the preparation method and application of the catalyst were analyzed in detail. The pollution in our country is becoming increasingly serious. In order to solve this problem, people have invented many new technologies. One of the low-temperature SCR denitrification catalysts has a good effect on controlling the pollution of nitrogen and chlorine compounds.
Briefly introduced the relevant concepts of low-temperature denitrification catalysts
Denitration, as the name suggests, is denitrification. Currently, there are two main denitrification processes, one is SCR, which is selective catalytic reduction. One of them is SNCR, which is selective non catalytic reduction. The latter is currently the mainstream of denitrification technology research in the world and is also a relatively mature denitrification technology. In terms of technology, it belongs to the post furnace denitrification process. When it works, reducing nitrogen oxides in flue gas to N2 and water requires an oxygen-containing atmosphere, catalyst, and reducing agents such as ammonia and urea.
The temperature generated by the conventional SCR denitrification process can reach up to 300 degrees Celsius or higher, which requires the catalyst to be placed in a high-temperature environment. However, in reality, there is a lot of dust at the discharge site, which can easily lead to catalyst poisoning. At the same time, due to historical reasons, there is no reserved space for thermal power generation units in China. In addition, the overall quality of coal in China is not high, causing serious harm to SCR equipment and catalysts.
Adopting low-temperature SCR denitrification process with a denitrification temperature not exceeding 300 ℃ can effectively solve the problems existing in traditional SCR denitrification process. There is currently no unified explanation for its reaction mechanism, so the reaction mechanism mentioned here is only one of the most common among many explanations. This article believes that the low-temperature SCR denitrification process mainly follows two mechanisms during operation, namely LH mechanism and ER mechanism, and there are differences between the two during operation.
Manufacturer of denitrification catalyst:At present, the main low-temperature denitrification catalysts are non loaded components and loaded catalysts prepared from metal oxides such as manganese and copper.
Manufacturer of denitrification catalyst:Denitration catalyst manufacturer: A brief introduction was given to the relevant concepts of low-temperature denitration catalysts. And the catalyst was selected as the introduction object, and the preparation method and application of the catalyst were analyzed in detail. The pollution in our country is becoming increasingly serious. In order to solve this problem, people have invented many new technologies. One of the low-temperature SCR denitrification catalysts has a good effect on controlling the pollution of nitrogen and chlorine compounds.
Briefly introduced the relevant concepts of low-temperature denitrification catalysts
Denitration, as the name suggests, is denitrification. Currently, there are two main denitrification processes, one is SCR, which is selective catalytic reduction. One of them is SNCR, which is selective non catalytic reduction. The latter is currently the mainstream of denitrification technology research in the world and is also a relatively mature denitrification technology. In terms of technology, it belongs to the post furnace denitrification process. When it works, reducing nitrogen oxides in flue gas to N2 and water requires an oxygen-containing atmosphere, catalyst, and reducing agents such as ammonia and urea.
The temperature generated by the conventional SCR denitrification process can reach up to 300 degrees Celsius or higher, which requires the catalyst to be placed in a high-temperature environment. However, in reality, there is a lot of dust at the discharge site, which can easily lead to catalyst poisoning. At the same time, due to historical reasons, there is no reserved space for thermal power generation units in China. In addition, the overall quality of coal in China is not high, causing serious harm to SCR equipment and catalysts.
Adopting low-temperature SCR denitrification process with a denitrification temperature not exceeding 300 ℃ can effectively solve the problems existing in traditional SCR denitrification process. There is currently no unified explanation for its reaction mechanism, so the reaction mechanism mentioned here is only one of the most common among many explanations. This article believes that the low-temperature SCR denitrification process mainly follows two mechanisms during operation, namely LH mechanism and ER mechanism, and there are differences between the two during operation.
Manufacturer of denitrification catalyst:At present, the main low-temperature denitrification catalysts are non loaded components and loaded catalysts prepared from metal oxides such as manganese and copper.
