Euro III /IV /V Hot Sale Active And Passive Regeneration Of DOC Catalyst
Product Description
With the increase of noble metal loading and the decrease of Pt/Pd ratio, the T50 of CO and total hydrocarbons (THC) decreases, while the conversion rate of CO and THC increases at low temperature (300℃). However, with the continuous increase of temperature, the beneficial effect of the increase of noble metal loading or Pd on the conversion rate of CO and THC gradually weakens, and the difference of average conversion rate at high temperature (≥300℃) is small. NO conversion rate increases with the increase of precious metal loading; NO COnversion rate is more sensitive to Pt content, and the formula with high Pt content can promote NO oxidation, which is contrary to the change law of co and THC conversion rate When the SCR inlet temperature is low, high NO2 concentration is beneficial to improve the NOx conversion efficiency of SCR, and when the SCR inlet temperature is high, the NOx conversion efficiency of SCR reaches more than 90% without obvious difference. No significant effect of DOC formula change on CDPF pressure drop under external characteristics was found.
| Category | Active DOC | Passive DOC | Active and passive DOC |
| Substrate | Ceramics, metals | Ceramics, metals | Ceramics, metals |
| Mesh/wall thickness | 300/5,8 400/4,6 | 300/5,8 | 300/5,8 400/4,6 |
| precious metal | Pt,Pd | Pt | Pt,Pd |
| Airspeed is recommended | 40,000-120,000 | 40,000-80,000 | 40,000-120,000 |
| Sulfur content in oil products | <50ppm | <500ppm | <50ppm |
| Recommended temperature | <750C | <550C | <650C |
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
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.
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