Diesel Particulate Filter is one kind of wall flowed honeycomb ceramic filter with special structure and material. It is applied in the tail gas clean-up plant of diesel. It utilizes the pore of wall flowed filter to cut-off and catch the soot particulate in the tail gas of diesel and then purifies the tail gas. It is made by two materials: Cordierite and SiC.
Characteristic: 1. Large and compact area per unit volume
2. Small pressure loss and excellent capturing performance
3. Excellent heat resistance and heat resistance
If Diesel Particulate Filter (DPF) is coated with noble metal (such as Pt, Pd and Rh), the particulate of emission is captured inside thin gas hole or entrance. As it lasts, the cumulated layer become thick, and pressure loss increase. To ensure the performance of engine, when pressure loss reaches some value, it is a must to recycle the filter. The recycle is making the particulate burning, by raising the gas temperature of filer. The particulate condition is related to the oxygen concentration. Normally, it is buring at 550-650 celsius degree. Usually we raise emission temperature by adjusting throttle, and increase gas temperature with burner. The particulate burning temperature can be decreased by catelyzer, making cumulative particulate burning as soon as possible, thus recover the pressure loss and fitters performance, then the filter is recycled.
Property (uncatalyzed)
|
100/17
|
200/12
|
Cell density
|
cpsi
|
100
|
200
|
cpscm
|
15.5
|
31.0
|
Wall thickness
|
inch
|
0.017
|
0.012
|
mm
|
0.432
|
0.305
|
Open frontal area (OFA), %
|
34.5
|
34.5
|
Geometric surface area (GSA)
|
Inch 2
|
33.3
|
47.0
|
m 2 /l
|
1.31
|
1.85
|
Hydraulic diameter
|
Inch
|
0.083
|
0.059
|
mm
|
2.11
|
1.49
|
Modulus of rupture (psi/cpscm)
|
350
|
300
|
Porosity (%)
|
48
|
48
|
Coefficient of thermal expansion
10 2 cm/cm/ (20-800) --maximum average
|
5
|
5
|
Mean pore size (micron)
|
13
|
13
|
Melting temperature (celsius degree)
|
1460
|
1460
|
Beihai Xiaoming International Imp&Exp Co., Ltd Established in 2008, which is a Private High-tech company located in Beihai city, China that is famous for its Silver Beach. We are a professional manufacturer and exporter of producing and exporting SiC/Al2O3/Zirconia Ceramic Foam Filter, Honeycomb Ceramic Heater for RTO, Infrared Cramic Plate, Cordierite/SiC Diesel Particulate Filter, Ceramic/Metal Honeycomb Substrate etc chemical products.
Beihai Xiaoming International Imp&Exp Co., Ltd is in the production, sales as a whole, and in cooperation with a number of large Group companies of major export commodities operated enterprises with a good reputation. For many years, with exports to Europe, and many countries in Southeast Asia, and received high praise.
We have a number of domestic and international famous academia senior adviser, own an innovation R & D team and sales elite. We have an excellent team of R & D\Production\Management and Sales, with passionate and responsibility. Currently, we have applied more than 30 patents for products developed and got certificates issued by international authorities such as TUV, IEC, UL, CE.
With the spirit of innovation during R&D, we were, we are and we will always be perfecting our products with the philosophy of " science, precision, accuracy and high efficiency". We hereby make our commitment: We offer our clients with the most effective and satisfying service, and this is our every person in our company to constantly pursuit.
