How do low-temperature SCR denitrification catalysts interpret efficiency and energy conservation?
Publishdate：2019-06-06 Views：17
How do low-temperature SCR denitrification catalysts interpret efficiency and energy conservation?
In recent years, China has increased its efforts in environmental governance, particularly in the field of air pollution control. The sources of air pollution are wide, and there are many types of pollutants, making governance difficult. Under the impetus of the second policy, environmental protection enterprises related to air pollution control have developed rapidly, and air pollution control technology is gradually improving. With the opening of the ultra-low emission steel market, 2018 can be said to have reached the peak of competition for air pollution control enterprises.
The continuous tightening of smoke control standards has once again promoted the development of desulfurization, denitrification, and dust removal industries. On topics such as how to choose denitrification catalysts under ultra-low emission standards, Zhang Shengqiang, Deputy General Manager of Beijing Fangxin Lihua Technology Co., Ltd. (hereinafter referred to as "Fangxin Lihua"), and Beixing Environmental Protection Network made progress discussions at the 2019 National Advanced Symposium on Operation, Maintenance, and Standard Emission of Garbage Incineration Power Plants. Zhang Shengqiang said, "From the successive tightening of emission standards, it can be seen that the future development trend is bound to move from ultra-low emissions to near zero emissions."
Zhang Shengqiang (left), Deputy General Manager of Beijing Fangxin Lihua Technology Co., Ltd
Does denitrification require low-temperature catalysis?
The ultra-low emission standards for steel in China took about a year from 2018 to 2019, from soliciting opinions to the official document. During this period, various regions have also introduced policies and standards for ultra-low emissions of steel, such as Hebei and Shandong, and the steel industry's ultra-low emissions have stood at the forefront. Compared to atmospheric dust removal and flue gas desulfurization technologies, denitrification of steel flue gas is a challenge. Currently, there are three mainstream technologies for ultra-low emission control of steel: activated carbon method, SCR method, and oxidation method.
The steel industry is like this, and the waste incineration industry is also like this. SCR technology, as one of the highly efficient and mature and reliable denitrification technologies, has great potential for application in the tide of waste incineration flue gas treatment.
Zhang Shengqiang mentioned that the operating temperature of equipment in certain industries can only reach around Baidu. If you want to denitration, you need to raise the temperature, which will inevitably increase energy consumption. There is no SCR catalyst on the market that can achieve very high efficiency at this temperature.
Denitration catalysts are the core products in SCR denitrification, and the development of denitrification technology increasingly requires the support of more efficient and energy-saving catalysts.
Zhang Shengqiang also mentioned that the nitrogen oxide emission indicators for flue gas denitrification in the early waste incineration industry were different, and early waste incineration equipment generally did not install SCR denitrification devices. Only SNCR ammonia spraying denitrification in the furnace can meet the emission standards. With the increasingly stringent nitrogen oxide emission standards, SNCR denitrification can no longer meet the new emission standards. SCR denitrification technology is gradually emerging, and the market for matched SCR denitrification catalysts is also being driven.
How to choose a low-temperature catalyst?
The proportion of active components in a catalyst determines its reaction efficiency and catalytic activity. Zhang Shengqiang said that regardless of whether it is thermal power or non electric, a common understanding is that SCR denitrification is a stable process that can achieve ultra-low emissions. However, the activity of traditional catalysts is coated on the surface, and the manufacturing process is simple. Low temperature SCR denitrification catalysts have an additional powder making process in the traditional manufacturing process, and through high-temperature calcination treatment, the effective ingredient content is high and the operation is stable.
The garbage incineration industry, as an important component of the municipal industry, has a large number of newly built market capacity every year, and the catalysts in the industry are monopolized by foreign products. The traditional coking industry and steel industry are also of great importance in the ultra-low emission market. When selecting denitrification catalysts, these industries need to conduct a detailed analysis of marginal costs before selecting suitable processes.
How far can low-temperature catalysts go?
According to the performance of Xinlihua in 2018, it was found that the low-temperature denitrification sales of coking and sintering accounted for 80% of the total sales, with coking accounting for 40%. The sales of low-temperature denitrification in other industries such as rotary kilns, waste incineration, waste liquid incineration, refractory materials, etc. account for 20% of the total low-temperature denitrification sales. From this, it can be seen that the coking industry and the steel sintering industry are the main sites for low-temperature SCR denitrification catalysts. In addition, with the support of the "Opinions on Promoting the Implementation of Ultra Low Emissions in the Steel Industry" policy issued by the five ministries in 2019, it can be foreseen that the market space for low-temperature SCR catalysts will be accelerated in the future.
Zhang Shengqiang said, "The selection and design of catalysts must reserve sufficient space for subsequent environmental standards. Waste incineration power plants, flue gas treatment units, catalyst suppliers, etc. should fully consider this issue."
The low-temperature denitrification catalyst developed by Fangxin Lihua will be used at temperatures ranging from 160 ° C to 400 ° C. In the future, it will continue to overcome technological difficulties, develop catalysts with lower temperatures, carry out new market projects, and progress in the development of large-scale upgrading and renovation of old projects such as waste incineration industry, rotary kiln, and gas boiler industry.
The comprehensive development strategy of Fangxinlihua and the future research deployment of low-temperature SCR denitrification catalysts require stronger foresight in exploring the air pollution control market. Low temperature SCR denitrification catalyst products not only need to meet ultra-low emission standards, but also need to be more efficient and energy-saving in order to enable enterprises to achieve significant development on the road of air pollution control under increasingly strict emission standards.
How do low-temperature SCR denitrification catalysts interpret efficiency and energy conservation?
In recent years, China has increased its efforts in environmental governance, particularly in the field of air pollution control. The sources of air pollution are wide, and there are many types of pollutants, making governance difficult. Under the impetus of the second policy, environmental protection enterprises related to air pollution control have developed rapidly, and air pollution control technology is gradually improving. With the opening of the ultra-low emission steel market, 2018 can be said to have reached the peak of competition for air pollution control enterprises.
The continuous tightening of smoke control standards has once again promoted the development of desulfurization, denitrification, and dust removal industries. On topics such as how to choose denitrification catalysts under ultra-low emission standards, Zhang Shengqiang, Deputy General Manager of Beijing Fangxin Lihua Technology Co., Ltd. (hereinafter referred to as "Fangxin Lihua"), and Beixing Environmental Protection Network made progress discussions at the 2019 National Advanced Symposium on Operation, Maintenance, and Standard Emission of Garbage Incineration Power Plants. Zhang Shengqiang said, "From the successive tightening of emission standards, it can be seen that the future development trend is bound to move from ultra-low emissions to near zero emissions."
Zhang Shengqiang (left), Deputy General Manager of Beijing Fangxin Lihua Technology Co., Ltd
Does denitrification require low-temperature catalysis?
The ultra-low emission standards for steel in China took about a year from 2018 to 2019, from soliciting opinions to the official document. During this period, various regions have also introduced policies and standards for ultra-low emissions of steel, such as Hebei and Shandong, and the steel industry's ultra-low emissions have stood at the forefront. Compared to atmospheric dust removal and flue gas desulfurization technologies, denitrification of steel flue gas is a challenge. Currently, there are three mainstream technologies for ultra-low emission control of steel: activated carbon method, SCR method, and oxidation method.
The steel industry is like this, and the waste incineration industry is also like this. SCR technology, as one of the highly efficient and mature and reliable denitrification technologies, has great potential for application in the tide of waste incineration flue gas treatment.
Zhang Shengqiang mentioned that the operating temperature of equipment in certain industries can only reach around Baidu. If you want to denitration, you need to raise the temperature, which will inevitably increase energy consumption. There is no SCR catalyst on the market that can achieve very high efficiency at this temperature.
Denitration catalysts are the core products in SCR denitrification, and the development of denitrification technology increasingly requires the support of more efficient and energy-saving catalysts.
Zhang Shengqiang also mentioned that the nitrogen oxide emission indicators for flue gas denitrification in the early waste incineration industry were different, and early waste incineration equipment generally did not install SCR denitrification devices. Only SNCR ammonia spraying denitrification in the furnace can meet the emission standards. With the increasingly stringent nitrogen oxide emission standards, SNCR denitrification can no longer meet the new emission standards. SCR denitrification technology is gradually emerging, and the market for matched SCR denitrification catalysts is also being driven.
How to choose a low-temperature catalyst?
The proportion of active components in a catalyst determines its reaction efficiency and catalytic activity. Zhang Shengqiang said that regardless of whether it is thermal power or non electric, a common understanding is that SCR denitrification is a stable process that can achieve ultra-low emissions. However, the activity of traditional catalysts is coated on the surface, and the manufacturing process is simple. Low temperature SCR denitrification catalysts have an additional powder making process in the traditional manufacturing process, and through high-temperature calcination treatment, the effective ingredient content is high and the operation is stable.
The garbage incineration industry, as an important component of the municipal industry, has a large number of newly built market capacity every year, and the catalysts in the industry are monopolized by foreign products. The traditional coking industry and steel industry are also of great importance in the ultra-low emission market. When selecting denitrification catalysts, these industries need to conduct a detailed analysis of marginal costs before selecting suitable processes.
How far can low-temperature catalysts go?
According to the performance of Xinlihua in 2018, it was found that the low-temperature denitrification sales of coking and sintering accounted for 80% of the total sales, with coking accounting for 40%. The sales of low-temperature denitrification in other industries such as rotary kilns, waste incineration, waste liquid incineration, refractory materials, etc. account for 20% of the total low-temperature denitrification sales. From this, it can be seen that the coking industry and the steel sintering industry are the main sites for low-temperature SCR denitrification catalysts. In addition, with the support of the "Opinions on Promoting the Implementation of Ultra Low Emissions in the Steel Industry" policy issued by the five ministries in 2019, it can be foreseen that the market space for low-temperature SCR catalysts will be accelerated in the future.
Zhang Shengqiang said, "The selection and design of catalysts must reserve sufficient space for subsequent environmental standards. Waste incineration power plants, flue gas treatment units, catalyst suppliers, etc. should fully consider this issue."
The low-temperature denitrification catalyst developed by Fangxin Lihua will be used at temperatures ranging from 160 ° C to 400 ° C. In the future, it will continue to overcome technological difficulties, develop catalysts with lower temperatures, carry out new market projects, and progress in the development of large-scale upgrading and renovation of old projects such as waste incineration industry, rotary kiln, and gas boiler industry.
The comprehensive development strategy of Fangxinlihua and the future research deployment of low-temperature SCR denitrification catalysts require stronger foresight in exploring the air pollution control market. Low temperature SCR denitrification catalyst products not only need to meet ultra-low emission standards, but also need to be more efficient and energy-saving in order to enable enterprises to achieve significant development on the road of air pollution control under increasingly strict emission standards.
