POC Particulate Oxida­tion Catalyst semi-closed system Diesel vehicle exhaust system particle capture device Generally, it can also achieve about 70% treatment effect

Product description

Name：Particulate Oxida­tion Catalyst（POC）

Size：

Diameter：222/267/286mm

Length：190/254mm

Material: Silicon carbide

Precious metal content of product：no

Applicable model standard：Euro 5/6 emission models

The package includes: 1 PCS Silicon carbide POC + 1 PCS insulation material

Contact information:：

name: ksrcat-Davin ye

Whatsapp: +86 13681711685

Email: Kesairay@proton.me

Attention:

1.Thermal insulation cotton/insulation material, we have 3mm,5mm,7mm,10mm, no requirement at the time of payment (default delivery is 5mm)

2.POC acts on diesel vehicles with large black smoke emissions, and only solves about 70% of black smoke

3.The product size exists: ±1-1.5mm error, but it does not affect the use, please rest assured

4.POC is a semi-closed system

5.No active regeneration is required

6.If you buy in bulk, you can contact us to request a discount

7. Products include:

1 POC+1 strip of insulation material

What is a diesel POC?

POC is a new type of exhaust aftertreatment technology, which is mainly installed on diesel engines. Its working principle is to burn the particles through the high temperature of the exhaust gas (250℃-500℃), so as to achieve the purpose of reducing the emission of particles. POC is characterized by active regeneration and does not require manual intervention. The DPF (Particle filter) is installed in the diesel engine exhaust system, which can reduce the emission of pollutants in the exhaust.

Why do POC preferences ignore the presence of DPF?

The main reason is to consider the cost and maintenance

The diesel particulate filter (DPF) collects the particles in the exhaust gas (mainly carbon) and then oxidizes them by a strategy such as "regeneration". DPF is a closed "filtration" system, which has a relatively high capturing capacity, and coupled with regeneration operations, can digest more than 90% of the exhaust gas
However, the main reason is that DPF technology because it is a fully closed filter structure, the fuel quality requirements are very high, under normal circumstances, the sulfur site in the fuel is required to be less than 15ppm; If the oil quality and oil products are not qualified, it is easy to clog, and we know that the sulfur content of the current batch of diesel on the domestic market is 50ppn, which will undoubtedly form a major challenge.

The full name of the POC is also the Particulate oxidiator (particulate Oxida-tion Catalyst), and there is a name called the partial (semi-general) filter POC compared with the DPF, which is equivalent to opening a small gap in the DPF, filtering only a small part of the PM.
The conversion efficiency is lower than that of DPF, and can generally be 40% to 75%. This technique does not require active regeneration. Diesel diesel containing more than 350ppn of sulfur, can be used normally.

reason:

1.DPF is highly sensitive to oil. If DPF filter is selected, the vehicle needs to be equipped with better diesel, and the cost will be increased, but POC will not.

2. The cost of DPF is much more expensive than that of POC, a more normal DPF is priced at tens of thousands of dollars, but the price of POC is only a few thousand yuan. Therefore, POC is preferred.

Failure rate：

DPF is a fully closed system, POC is a semi-closed system, so the failure rate of DPF is much higher than that of POC, and at the same time, the problem handling of DPF is relatively complicated. The cost of maintenance is relatively high and the maintenance time is relatively short. And compared with DPF, the probability of blockage is greatly reduced, and the cost is also lower

What if we encounter a blockage in the POC and DPF?

POC：

1. Remove the POC, use more than 6 kg of gas, blow backwards. It will be found that a large number of particles come out from the front and continue to blow for more than 10 minutes;

2. Clean the front with water for more than 10 minutes, and then clean up the particles.

3. Then blow the gas backwards to clean up the water

DPF：

1. After removing the DPF, still use more than 6 kg of gas and blow it backwards. It will be found that a large number of particles come out from the front and continue to blow for more than 10 minutes;

2. Don't wash DPF with water. Use the spray gun to breathe fire on the DPF filter screen, when this point becomes slightly red, then replace it again, until the DPF filter surface becomes slightly red, blow against the gas.

3. Put the DPF on the car, and use the decoder to do DPF automatic reset; Power off, restart.

At the same time, in the process of POC and DPF cleaning, we must pay attention to:

1. Cleaning is different from regeneration process. It is usually necessary to heat the carrier at high temperature, then use compressed air and vacuum system to blow the ash, and capture it to seal the container (do not use the compressor to clean the ash in open areas);

2. Do not remove ash on POC or DPF by tapping or tapping;

3. Ensure that POC or DPF is correctly installed, and do not install POC or DPF after cleaning;

4. Cleaning must be carried out once within 150-300,000 kilometers, and the use of inferior fuel or lubricating oil will greatly shorten the cleaning mileage;

5. When the engine cannot reach the passive regeneration working condition for a long time, the cleaning mode may enter in advance.