Fangxin Lihua's low-temperature SCR catalyst technology has been recognized as an international leading level by the Chinese Society of Environmental Sciences
Publishdate：2019-01-17 Views：15
The Chinese Society of Environmental Sciences recently organized a meeting in Beijing to evaluate the key technologies and industrialization of catalytic materials for industrial furnace flue gas denitrification, jointly completed by Beijing University of Technology and Beijing Fangxin Lihua Technology Co., Ltd. The experts of the appraisal committee listened to the project team's work and technical reports, reviewed relevant materials, and after a series of strict and standardized process reviews such as questioning and discussion, the appraisal committee finally determined that the overall achievement has reached the international advanced level, and the low-temperature catalyst preparation technology has reached the international advanced technical level.
The main innovative points of this appraisal include:
1. By means of bulk doping, surface modification, and structural control, high-performance low-temperature SCR denitrification catalysts have been developed. In typical industrial furnace flue gas denitrification projects, the overall honeycomb low-temperature SCR catalyst has a purification efficiency of over 90% for NOx and NH3 escape of less than 3 ppm under 180 ° C conditions;
2. The mechanism by which the surface Keggin structure enhances the low-temperature activity and sulfur poisoning resistance of SCR reaction was elucidated, and an effective method to suppress the generation of ammonium bisulfate in the low-temperature sulfur-containing flue gas denitrification process was proposed, enriching the theory of industrial furnace low-temperature SCR denitrification technology;
3. The pre prepared SCR catalyst powder and raw material grading technology developed by R&D has overcome the technical challenges of high-performance low-temperature catalyst molding; We have developed equipment and process technology for dust removal, multi chamber SCR denitrification, and catalyst pyrolysis regeneration, achieving efficient dust removal and denitrification, as well as in-situ pyrolysis regeneration of low-temperature SCR catalysts.
This achievement was first applied to the low-temperature flue gas denitrification project of Baosteel Zhanjiang coke oven in December 2015. The application over the past three years has shown stable operation and good results. It has now been applied in more than 100 denitrification projects in industries such as coking, sintering, garbage incineration, ceramics, and chemical engineering. It is of great significance for achieving nitrogen oxide emission reduction and improving air environment quality. Based on the above, after appraisal by the appraisal committee, the overall achievement has reached the international advanced level, and the low-temperature SCR catalyst preparation technology has reached the international leading level.
The Chinese Society of Environmental Sciences recently organized a meeting in Beijing to evaluate the key technologies and industrialization of catalytic materials for industrial furnace flue gas denitrification, jointly completed by Beijing University of Technology and Beijing Fangxin Lihua Technology Co., Ltd. The experts of the appraisal committee listened to the project team's work and technical reports, reviewed relevant materials, and after a series of strict and standardized process reviews such as questioning and discussion, the appraisal committee finally determined that the overall achievement has reached the international advanced level, and the low-temperature catalyst preparation technology has reached the international advanced technical level.
The main innovative points of this appraisal include:
1. By means of bulk doping, surface modification, and structural control, high-performance low-temperature SCR denitrification catalysts have been developed. In typical industrial furnace flue gas denitrification projects, the overall honeycomb low-temperature SCR catalyst has a purification efficiency of over 90% for NOx and NH3 escape of less than 3 ppm under 180 ° C conditions;
2. The mechanism by which the surface Keggin structure enhances the low-temperature activity and sulfur poisoning resistance of SCR reaction was elucidated, and an effective method to suppress the generation of ammonium bisulfate in the low-temperature sulfur-containing flue gas denitrification process was proposed, enriching the theory of industrial furnace low-temperature SCR denitrification technology;
3. The pre prepared SCR catalyst powder and raw material grading technology developed by R&D has overcome the technical challenges of high-performance low-temperature catalyst molding; We have developed equipment and process technology for dust removal, multi chamber SCR denitrification, and catalyst pyrolysis regeneration, achieving efficient dust removal and denitrification, as well as in-situ pyrolysis regeneration of low-temperature SCR catalysts.
This achievement was first applied to the low-temperature flue gas denitrification project of Baosteel Zhanjiang coke oven in December 2015. The application over the past three years has shown stable operation and good results. It has now been applied in more than 100 denitrification projects in industries such as coking, sintering, garbage incineration, ceramics, and chemical engineering. It is of great significance for achieving nitrogen oxide emission reduction and improving air environment quality. Based on the above, after appraisal by the appraisal committee, the overall achievement has reached the international advanced level, and the low-temperature SCR catalyst preparation technology has reached the international leading level.
