Guangxi Huihuang Langjie Environmental Protection And Technology

Diesel Particulate Filter (DPF) , also called wall flow filter,is suitable for exhaust gas purification of various kinds of diesel vehicles and ships. We can produce different materials of DPF: cordierite particulate filter and silicon carbide diesel particulate filter .We also supply Catalytic Converter, Catalytic muffler, Motorcycle catalytic converter, DOC Catalyst, SCR catalyst ,Ceramic honeycomb monolith , Metal honeycomb carrier, ect. Our management system has been certified the ISO9001 and TS16949 by SGS company.
 
 
Materials: cordierite or silicon carbide
Function:
Wall-flow diesel particulate filters usually remove 95% or more of the soot, and under certain conditions can attain soot removal efficiencies approaching 100%
 
Working Principle
By forcing the exhaust gases through the walls between the channels of the DPF,the particulate matter is deposited on the walls ,so reducing the amount of air pollution.
 
 
Silicon Carbide Diesel Particulate Filter
 
The second most popular filter material is silicon carbide is a ceramic compound of silicon and carbon , also called SiC. It has a higher melting point (1500ºC) than cordierite.
 
SiC cores are usually more expensive than cordierite cores, however they are manufactured in similar sizes, and one can often be used to replace the other.
 
Tested to ensure backpressure and performance match OE
Improved thermal stability and efficiency
Backed by a lifetime, unlimited mileage warranty
Stringently tested for durability and OEM functionality
Approved for horizontal, vertical and dual installations
Nationwide technical /installation support
Complies with emissions requirements for 2007 and newer model years
 
Parameter of Sic DPF

Item Techinical Index
Sic Content â?¥90%
Cell Density 200 cpsi
Wall Thickness 0.35-0.41mm
Cell Lenght 1.2-1.45mm
Apparent Porosity 42-60%
Median Pore Size 12-20μm
Transverse Compression Strength >2.3Mpa
Coefficient of thermal expansion (40-800ºC) 4.3-4.4 (10-6/ºC)
Thermal Conductivity(500ºC) 14-22(W/mK)
Capture Rate >95%
Bulk Density 0.8 Kg/L
Filter Area 0.75m2/L
Softening Temperature >1500 ºC

Diesel Particulate Filters (DPF) utilize cordierite wall-flow monoliths to trap the soot produced by medium to heavy-duty engines in off-road, on-road and stationary applications. The cylindrical filter element consists of many square parallel channels running in the axial direction, separated by thin porous walls, as shown below.


The channels are open at one end and plugged at the other, which forces the particle laden exhaust gases to flow through the walls. Gas is able to escape through the pores in the wall material. Particulates, however, are too large to escape and are trapped in the filter walls and in the inlet channels. A proprietary noble metal catalyst is coated onto the inside surface of the filter monolith.
Diesel oxidation catalyst(DOC) also as the core components of exhaust gases filtration system, it can promote chemical oxidation of CO and HC as well as the SOF portion of diesel particulates. We also supply Catalytic Converter, Catalytic muffler, Motorcycle catalytic converter, DOC Catalyst, Diesel Particulate Filters, DPF, SCR catalyst ,Ceramic honeycomb monolith , Metal honeycomb carrier, ect. Our management system has been certified the ISO9001 and TS16949 by SGS company.






Catalytic Diesel Particulate Filter Soot Filter for Diesel Generator Set adapts the diesel particulate filter (DPF) as the core components. This kind of treatment make the black smoke purification rate can be up to 90%-98%. Besides ,the use of the most advanced catalyst continuously regenerating technology can make the capture of particulate matters(PM) completely automatic combustion, and effectively remove CO,HC and other harmful gases, without adding any more pollution.

Combine the catalyzed pre-filter(DOC) with the wall flow filter(DPF), can help to reduce the harmful gas such as HC, CO.. The working principle as follows:


System Component

System Component
Air inlet module
Air outlet module
Diesel oxidation catalyst (DOC)
Diesel particulate filter(DPF)
Muffler
Online Monitoring System


FEATURES
Typically for retrofit on Tier 1, 2 and 3 off-road diesel vehicles with medium to heavy duty cycles.
Passively regenerates on engines with medium and heavy duty cycles and ultra-low sulfur diesel.
catalyzed pre-filter plus cordierite wall flow filter media.
Replaces the OEM muffler in most off-road vehicle designs.
Top quality stainless steel construction.
Performance:
DPM removal rate â?¥95%
CO removal rate â?¥90%
HC removal rate â?¥85%
CH2O removal rate â?¥80%

Adding a DPF not only reduces the amount of PM released into the atmosphere, it can also help lower your fuel consumption, improve performance and minimize operating costs.

Diesel Particulate Filters (DPF) utilize cordierite wall-flow monoliths to trap the soot produced by medium to heavy-duty engines in off-road, on-road and stationary applications. The cylindrical filter element consists of many square parallel channels running in the axial direction, separated by thin porous walls, as shown below.

The channels are open at one end and plugged at the other, which forces the particle laden exhaust gases to flow through the walls. Gas is able to escape through the pores in the wall material. Particulates, however, are too large to escape and are trapped in the filter walls and in the inlet channels. A proprietary noble metal catalyst is coated onto the inside surface of the filter monolith.
The catalyst lowers the soot combustion temperature allowing the filter to regenerate. The accumulated soot is oxidized in the filter during regular operation of the engine. For about 25-30% of the engine operating time, the exhaust temperatures must be at least 275-300°C for proper filter regeneration when ULSD (ultra-low sulfur diesel) fuel is used.

Catalytic Diesel Particulate Filter Soot Filter for Diesel Generator Set adapts the diesel particulate filter (DPF) as the core components. This kind of treatment make the black smoke purification rate can be up to 90%-98%. Besides ,the use of the most advanced catalyst continuously regenerating technology can make the capture of particulate matters(PM) completely automatic combustion, and effectively remove CO,HC and other harmful gases, without adding any more pollution.

Diesel oxidation catalyst(DOC) also as the core components of exhaust gases filtration system, it can promote chemical oxidation of CO and HC as well as the SOF portion of diesel particulates. We also supply Catalytic Converter, Catalytic muffler, Motorcycle catalytic converter, DOC Catalyst, Diesel Particulate Filters, DPF, SCR catalyst ,Ceramic honeycomb monolith , Metal honeycomb carrier, ect. Our management system has been certified the ISO9001 and TS16949 by SGS company.

Combine the catalyzed pre-filter(DOC) with the wall flow filter(DPF), can help to reduce the harmful gas such as HC, CO.. The working principle as follows:

FEATURES
Typically for retrofit on Tier 1, 2 and 3 off-road diesel vehicles with medium to heavy duty cycles.
Passively regenerates on engines with medium and heavy duty cycles and ultra-low sulfur diesel.
catalyzed pre-filter plus cordierite wall flow filter media.
Replaces the OEM muffler in most off-road vehicle designs.
Top quality stainless steel construction.
Performance:
DPM removal rate â?¥95%
CO removal rate â?¥90%
HC removal rate â?¥85%
CH2O removal rate â?¥80%

Adding a DPF not only reduces the amount of PM released into the atmosphere, it can also help lower your fuel consumption, improve performance and minimize operating costs.

Metallic Honeycomb Catalyst is suitable for automobile exhaust purification catalytic converters , industrial waste gas purification and other fields. It can meet the increasing requirements of environmental protection .We also supply Catalytic Converter, Catalytic muffler, Motorcycle catalytic converter, DPF,DOC Catalyst, SCR catalyst ,TWC catalyst,Ceramic honeycomb monolith , Metal honeycomb carrier, ect. Our management system has been certified the ISO9001 and TS16949 by SGS company.
 We offer the most diverse metallic substrate configurations in the world.All shapes can be made with or without mantels.
Sizing for rounds, ovals and rectangles up to 48" - 1200mm OD
Custom cell configurations available
 
SubstrateConfigurationsShapes can be made with or without mantels/tube
Custom shapes that may not be shown here are also available upon request
Custom foil geometries available
Extensive product offering with variable cell sizes and flow depth options
 
SubstrateConstructionBrazed, Oxidized & Mechanically Retained
Single brazed rounds as large as 48"OD (1200mm)
Rectangles up to 48" (1200mm)
 
Standard Metallic Substrate Nomenclature 
Metal Substrates without mantels
Metal Substrates with mantels
Matrix OD x Matrix length x CPSIMatrix OD(Mantel OD)x Matrix length(Mantel Length)
Example: 6.5 inch x 3.5 inch x 300CPSI
Example:6.38 inch (6.5 inch ) x 3.5 inch (4.0 inch) x 300CPSI

Cell densities - CPSI Stock foil widths Rounds in Mantels
(air flow depth) Available tube sizes smaller 6â?³ OD
25 260 Inches mm Inches mm
50 300 1 25 1 25
70 350 1.7 43 1.25 32
80 400 2 51 1.5 38
100 500 2.25 57 1.75 44
150 600 2.5 64 2 51
200 900 2.75 70 2.25 57
230 1000 3 76 2.5 64
Custom sizes also
available upon request 3.25 83 2.75 70
3.5 89 3 76
4 102 3.25 83
4.72 120 3.5 89
5 127 4 102
5.91 150 5 127
12 305 6 152


Any OD larger than 6â?³
is available

SCR Catalytic Converter Muffler is mainly used in diesel engine exhaust system . SCR means selective catalytic reduction. Its principle is that NO and NO2 reduced to N2 under reducing agent NH3 and 290-400 Celsius.  Almost no NH3 oxidation reaction occur. Our patented SCR catalytic muffler successfully assembled Beijing Public Transport System in 2008 . We also supply Catalytic Converter, Catalytic muffler, Motorcycle catalytic converter, DOC Catalyst, Diesel Particulate Filters, DPF, SCR catalyst ,Ceramic honeycomb monolith , Metal honeycomb carrier, ect. Our  management system has been certified the ISO9001 and TS16949 by SGS company.
 
SCR system main include:  urea solution , transporting devices, metering devices, injection devices, catalytic converters, exhaust temperature sensor and so on . And our SCR catalytic converter Muffler is the core of SCR system .
 
Features:
Emission standard: Euro III , Euro IV ,Euro V   
conversion rate : 98.5%
Applicable models : for diesel vehicles
Ignition temperature : 50 ºC   
heat resistance : 800ºC
Basic conversion when using urea : 4NO + 2 (NH2) 2CO + O2 â??4N2 + 4H2O + 2CO2
Reaction temperature : 90%                   
ETC cycle NOx reduction efficiency of > 80%
The average concentrations of NH3 overflow