With increasing appearance of diesel engine automobile, the particulate from emission, mainly carbon, enhances the pollution to the environment. Regulation for diesel engine, stipulating the particulate in diesel passenger cars emission should meet the criterion: Below 2.0g/mile. The diesel particulate filter is able to filter above 80% carbon smoke particulate. For practical application, it would be a great help to solve the problem of air pollution.
![]()
If the DPF is coated with precious-metal (such as Pt, Pd and Rh), black smoke with carbon particulate from diesel engine pass through a special tube and enter the filter. The carbon smoke particulate is absorbed to the filter made of metallic fiber felt, when passing the inner dense set and bag-style filter. When particulate absorption reaches some degree, the tail burner would be ignited to burn automatically. In this case, the particulate absorbed been burned out and turned into nontoxic CO2 then discharge. The full device is designed as double room structure, and filtration and recycle are going in different areas, making them non-disturbed. The system can work automatically whatever working condition the engine in. Especially made honeycomb ceramic particulate filter, acts as capturing device to the particulate to some extent.
![]()
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 filter.
The particulate condition is related to the oxygen concentration. Normally, it is burning at 550-650. Its adopted to raise emission temperature by adjusting throttle, and increase gas temperature with burner. The particulate burning temperature can be decreased by catalyzed, making cumulative particulate burning as soon as possible, thus recover the pressure loss and fitters performance, then the filter is recycled.
Advantages:
*Large and compact area per unit volume
*Small pressure loss and excellent capturing performance
*Excellent heat resistance and heat shock resistance
| 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 ( Degree C ) | 1460 | 1460 |
| Size(Diameter × length) | Filter volume(Liter) | Cell density | Shape |
| mm | Inches |
| Φ 70 × 152 | Dia.2.76 × 6 | 0.58 | 100/200CPSI | Round |
| Φ 144 × 152 | Dia.5.66 × 6 | 2.48 | 100/200CPSI | Round |
| Φ 144 × 205 | Dia.5.66 × 8 | 3.34 | 100/200CPSI | Round |
| Φ 144 × 254 | Dia.5.66 × 10 | 4.13 | 100/200CPSI | Round |
| Φ 144 × 305 | Dia.5.66 × 12 | 4.96 | 100/200CPSI | Round |
| Φ 170 × 254 | Dia.6.69 × 10 | 5.76 | 100/200CPSI | Round |
| Φ 190 × 200 | Dia.7.48 × 7.87 | 5.67 | 100/200CPSI | Round |
| Φ 228 × 152 | Dia.8.97 × 6 | 6.20 | 100/200CPSI | Round |
| Φ 228 × 254 | Dia.8.97 × 10 | 10.37 | 100/200CPSI | Round |
| Φ 228 × 305 | Dia.8.97 × 12 | 12.45 | 100/200CPSI | Round |
| Φ 240 × 240 | Dia.9.45 × 9.45 | 10.85 | 100/200CPSI | Round |
| Φ 240 × 254 | Dia.9.45 × 10 | 11.48 | 100/200CPSI | Round |
| Φ 240 × 305 | Dia.9.45 × 12 | 13.79 | 100/200CPSI | Round |
| Φ 260 × 305 | Dia.10.23 × 12 | 16.19 | 100/200CPSI | Round |
| Φ 270 × 305 | Dia.10.63 × 12 | 17.45 | 100/200CPSI | Round |
| Φ 286 × 305 | Dia.11.26 × 12 | 19.58 | 100/200CPSI | Round |
| (98 × 195) × 154 | (3.8 × 7.7) × 6 | 2.60 | 100/200CPSI | Race track |
| (98 × 195) × 205 | (3.8 × 7.7) × 8 | 3.50 | 100/200CPSI | Race track |
| (98 × 195) × 254 | (3.8 × 7.7) × 10 | 4.30 | 100/200CPSI | Race track |
| (98 × 195) × 305 | (3.8 × 7.7) × 12 | 5.20 | 100/200CPSI | Race track |
Beihai Xiaoming International Imp&Exp Co., Ltd Established in 2008, which is a Private High-tech company. It cooperate with and invest to make to the funds in form of company in A large-scale enterprises, BoCent Advanced Ceramic Co., Ltd. This corporation is the biggest enterprise which devote to High-tech at saving energy and environmental field. BoCent Advanced Ceramic is professional manufacturer for environmental ceramic product, such as storage filter, foam filter, DPF and catalyst converter, infrared burning plates. As one of Shareholders, Beihai Xiaoming primarily responsible for Overseas Market Operation.
With the speedy development of solar industry, Beihai Xiaoming International Imp&Exp Co., Ltd interested to set foot in the Great Green Solar Industry and built up manufacture base in Nanning for research & develop, manufacture and sell solar modules, solar power supply system, solar lighting system, solar pumping/ irrigation system and other solar application products etc. The base covers and area of 3600 square meters with luxurious show room and dust-free workshop, equipped with many kinds of high advance and sophisticated devices and instruments
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.
