SCR Denitration Catalyst
Description
Wan pure catalyst type and desired volume are customized and optimized according to specific flue gas conditions. For gas turbines with natural gas and fuel, conventional catalyst aperture is 2.7 mm to 3.7 mm. The catalyst length is determined according to the operating conditions, and the flue gas temperature is a very important role in selecting a catalyst. Our standard catalyst reached a high value when the operating temperature was between 280 ° C and 450 ° C.
Characteristics of cellular denitration catalyst
• Design suitable microporous distribution to achieve stable denithenic performance;
• Adopt suitable active ingredients, effectively inhibit the conversion of SO2 while ensuring the denitration rate;
• The product is uniform, even if the surface is worn, the live portion has not changed at all.
• Adopt suitable porosity, make the denitrifination and wear resistance to the appropriate balance point;
How to extend the life of a cellular catalyst
The life of the SCR catalyst refers to the continuous use time of the catalyst activity to meet the denitration efficiency of the denitration system is not less than 75%, and the escape rate of ammonia is not more than 3 ppm conditions.
Long life is one of the significant features of the cellular catalyst. Take advantage of this feature, considering the proper extension of life during design, which can greatly reduce the operating cost of SCR.
Catalyst maintenance
The catalyst has good thermal stress performance, and can withstand the normal temperature change of the boiler, for example, boiler start, load changes, stop stoves. The operating temperature of the catalyst is 280 ° C? -450 ° C. The catalyst can satisfy the flue gas temperature without less than 450 ° C for a long time, and the catalyst can withstand the test of no less than 5 hours 450 ° C operating temperature without any damage.
Sanction, anti-blush
When the SCR design and catalyst design, the catalyst is prevented from clogging, and there are many measures. However, in terms of the catalyst, the appropriate pitch is selected, and the formation of the viscous material can be prevented from clogging the catalyst hole.
Treatment of failure catalyst
1. The normal failure catalyst has a certain toxicity, and the waste catalyst is crushed and packaged in the concrete by an authorized waste treatment company.
2, processing method in abnormal failure:
1) If the catalyst has failed in a short period of time, poisoning is generally, and the professionals should be invited to analyze and determine the cause of poisoning;
2) If it is physically poisoning, such as blockage, you can use a means of cleaning.
3) If it is chemical poisoning, you need to ask a professional company to clean;
4) If it is damaging damage, the catalyst will not continue to use.
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