Euro2 3 4 5 6 Fe Scr Nox Catalyst Replacement

Euro2.3.4.5.6 standard Fe-SCR Honeycomb Ceramic Substrate Catalyst Selective Catalytic Reduction Catalyst

Product Description

1. Introuduction

1). In order to meet emission regulations, SCR technology has become the preferred technical route for reducing NOx in medium and heavy diesel engine enterprises, and has been increasingly accepted by people and become the mainstream research direction of NOx aftertreatment in diesel engine exhaust. SCR technology uses ammonia gas generated from urea aqueous solution to purify NOx. urea aqueous solution is a very complex reaction system, and the catalyst itself has a temperature window. generally, the catalyst can meet the requirements of high temperature operation, but the activity of the catalyst is very low at low temperature, which poses a huge problem for the catalyst. When the bus runs at low speed for a long time, or when the vehicle is just started, the exhaust gas temperature is about 200 C, even lower than 200 C, the light-off temperature of vanadium-based catalyst is 250°C, the purification effect is poor, and the NOx emission exceeds the standard. Therefore, the development of new SCR catalysts with good low-temperature catalytic activity by using low-toxic materials has become a research hotspot in related fields in China, among which molecular sieve catalytic materials are particularly active.

(2)Many studies have found that Cu-based or Cu-Fe-based molecular sieve catalysts have high activity for NOx decomposition and have broad application prospects. Copper and iron are used as active components and supported on molecular sieves through repeated equal volume impregnation, and the low temperature effect is good. Copper-based molecular sieve catalyst was prepared by ion exchange method. The mixed solution of copper acetate and cerium ammonium nitrate was prepared, and then ZSM-5 molecular sieve carrier was added into the mixed solution to stir. Finally, the copper-based molecular sieve catalyst was obtained after drying and roasting. The obtained copper-based molecular sieve catalyst was very efficient for NH3-SCR reaction at 200 C-500 C, and had good water and sulfur resistance and stability.

2. Specification

3.GRACE pottery general specifications

Remark: The size is not complete, it is only routine.

Company Information

Grace Environmental Protection Technology Co., Ltd. is a technical enterprise specialized in various types of exhaust gas treatment. The team has rich internal combustion engine exhaust gas and VOC treatment experience and more than ten years of working experience, and is a very few suppliers with the ability to design the whole process from catalyst to overall solution. At present, the products cover all kinds of exhaust catalysts, DOC,CDPF,SCR,ASC, etc. At the same time, they cover waste liquid treatment and indoor air purification, providing customers with the most competitive products and services. At present, the company has passed the certification of ISO14001 environmental management system, ISO9001 international quality certification, AAA enterprise credit rating and other certifications, and has an annual output of 500,000 litres of catalyst production coating line, complete quality management system and process control. Various performance testing capabilities, including SRD,SRF,ICP,BET, etc.!

Packaging & Shipping

Certifications

FAQ

Q1. What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons Or wooden cases and foam. If you have legally registered patent,
we can pack the goods in your branded boxes after getting your authorization letters.

Q2. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages
before you pay the balance.

Q3. What is your terms of delivery?
A: EXW, FOB, CRF, CIF, DDU.

Q4. How about your delivery time?
A: Generally, it will take 30 to 60 days after receiving your advance payment. The specific delivery time depends
on the items and the quantity of your order.

Q5. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.

Q6. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and
the courier cost.

Q7. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery

Q8: How do you make our business long-term and good relationship?
A: 1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them,
no matter where they come from.