Low temperature and high efficiency Diesel Oxidation Catalyst
Product Description
- DOC is the abbreviation of oxidation catalyst for diesel engine,
which is the first step of the whole post-treatment process,
usually the first section of three-stage exhaust pipe, and precious
metal or ceramic is generally used as catalyst carrier.
- The main function of DOC is to oxidize CO and HC in waste gas and
convert them into CO2 and H2O which are non-toxic and harmless.
- At the same time, it can absorb soluble organic components and some
carbon particles, and reduce some PM emissions.
- And oxidize NO to NO2(NO2 is also the source gas of the lower
reaction).
| 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.
