Exhaust Aftertreatment System

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Quality Assurance

The company has passed multiple standard system certifications such as ISO9001, ISO14001, and ISO45001, and its products are widely used in more than 20 provinces in China. At the same time, with excellent product quality and high-quality technical services, the company has gained a good reputation in multiple countries in Southeast Asia, Russia, and Africa.

Product Application

Our generator sets are widely used in power generation using various combustible gases such as natural gas, associated petroleum gas, coalbed methane, coal gasification gas, biomass gas, and biogas. They cover all areas of industry demand and are equipped with different types of generator sets to meet the needs and choices of various users.

Production Market

The company has a complete marketing and after-sales service network, and has established a service system that provides services at any time in more than 20 cities in Northeast, Northwest, Southwest, East China, etc. The products are exported to many countries in Africa, Southeast Asia, and Euprope.

Excellent service

We provide comprehensive services and formulate the most appropriate plans based on the unique needs of customers; we provide users with engineering drawings and commissioning training, regular after-sales service, and a 24-hour technical guidance hotline.

Stationary SCR System

Stationary SCR System can be applied to a variety of land-based scenarios, such as power plants,

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Marine SCR System

The application background of Marine SCR System is mainly focused on the strict global regulatory

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SCR Soot Blower

The SCR soot blowing system is an important component of the Selective Catalytic Reduction (SCR)

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SCR Bypass System

The SCR (Selective Catalytic Reduction) bypass system is a device used for emission control of

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SCR Silencer

Denitrification muffler is a device specially designed to reduce the noise generated in

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SCR Control System

The SCR denitrification device is equipped with a PLC control system and a human-machine

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Types of Exhaust Aftertreatment System

Stationary SCR System
Stationary SCR System can be applied to a variety of land-based scenarios, such as power plants, furnaces, cogeneration and other post-combustion treatment. It is suitable for diesel, heavy oil, biofuel and gas fuel engines. Through configuration and combination, it can handle a variety of pollutants and reduce nitrogen oxide emissions by more than 98%.

Marine SCR System
The application background of Marine SCR System is mainly focused on the strict global regulatory requirements for ship emission control.

SCR Soot Blower
The SCR soot blowing system is an important component of the Selective Catalytic Reduction (SCR) denitrification technology. SCR technology is one of the most widely used flue gas denitrification technologies, mainly used to reduce nitrogen oxide (NOx) emissions generated in industrial processes.

SCR Bypass System
The SCR (Selective Catalytic Reduction) bypass system is a device used for emission control of internal combustion engines. It can bypass the SCR reactor under certain circumstances to ensure that the engine can operate normally without being affected by the SCR system.

SCR Silencer
Denitrification muffler is a device specially designed to reduce the noise generated in denitrification systems (such as SCR denitrification systems). Its principles mainly include two methods: resistive muffler and reactive muffler, or a combination of the two (impedance composite muffler).

SCR Control System
The SCR denitrification device is equipped with a PLC control system and a human-machine interactive operation interface to accurately control the injection amount and timing of the reducing agent, as well as monitor and adjust the temperature and chemical composition of the exhaust gas.

Advantages of Exhaust Aftertreatment System

01/

Engine Optimization: By handling NOx reduction downstream, SCR systems allow manufacturers to optimize engine parameters for power, efficiency, and fuel economy without compromising on emissions.

02/

Wider Applicability: The modular design makes SCR systems adaptable to various engine sizes and configurations, facilitating their use in a broader range of diesel vehicles.

03/

Future-Proofing: The ability to adjust the catalyst and urea dosing allows SCR systems to adapt to stricter emission regulations that may be implemented in the future.

04/

Fuel Efficiency: Precise control over urea injection minimizes unnecessary consumption, potentially improving fuel efficiency compared to other NOx reduction methods.

Specification

Component	Catalytic Converter
Fitment	Customized
Emission Standard	Euro III,Euro IV, Euro V
Body Shape	Cylinder ,Oval ,Round
Shell Material	Stainless Steel 409, 409L,304
Substrate Material	Ceramic Monolith or Metallic Honeycomb Substrate
Obdii Compatible	Customized
Air Tube Adaptable	No
Size	Customized
Inlet Connection Type	Slip-Fit
Outlet Connection Type	Slip-Fit

Precautions for Using Exhaust Aftertreatment System

In order to ensure the normal operation and service life of the system, please use qualified and clean urea solution. If the urea solution is too dirty, it may lead to blockage of pump or nozzle in the system; if the concentration is too low, emis- sion level will be over the regulation limit. It may seriously damage thecatalytic muffler.

Urea will freeze under -11°C and will expand in volume. Therefore, it is not advisable to add too much urea in the urea tank. At least 10% expansion space should be left to prevent the tank from cracking when urea freezes.

When the urea level is lower than 20%，please add urea in time. If the urea is too low in the tank, the system will light up the MIL lights and may restrict the engine torque.

During the operation of the system, high pressure may accumulate in the pipeline, so please pay attention to protectyour eyes and prevent urea from spraying into your eyes when the fluid pipeline needs to be removed.

It is strictly prohibited to try to remove the bolts of the urea pump cover by yourself, because special procedure and cali- bration are required once the bolts are removed.

Before conducting weld on the vehicle, the urea pump must be removed from the frame, or it may cause permanegt damage to the urea pump.

Packaging and delivery

Packaging Details	Standard Package or According to Requirements.
Selling Units:	Single item
Single package size:	64X57X68 cm
Single gross weight:	25.000 kg

Other Services

Packing terms
Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.

Payment terms
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.

Delivery terms
EXW, FOB, CFR, CIF, DDU.

Delivery time
Generally, it will take about 15 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.

After-sales service
We offer Overall managed operation service including Regular after-sales service,24hrs hotline for technical guidance,Working combination between engineers and local staff.

Certificate

FAQ

Q: Why install an SCR system?

A: Diesel combustion engines emit nitrogen oxides (NOx). In hot weather, higher levels of NOx pollution contribute to the formation of smog. An SCR system helps prevent this by significantly reducing nitrogen oxide emissions.

Q: How our SCR system works

A: Our SCR catalytic converter reduces nitrogen oxide emissions.
1: A urea solution such as AdBlue is injected (sprayed) into the exhaust system
2: The water evaporates and the urea is converted into ammonia
3: The ammonia reacts with the nitrogen oxides in the exhaust stream
4: As they pass through the catalytic converter, the gases are converted into inert nitrogen and water vapour.

Q: What is exhaust aftertreatment?

A: Exhaust gas aftertreatment refers to the processes that clean exhaust gases mechanically, catalytically or chemically after they have left the combustion chamber. Aftertreatment is carried out to convert the pollutants produced during combustion into harmless exhaust gases.

Q: How does the aftertreatment system reduce NOx?

A: The SCR system, through a chemical reaction, by the introduction of the diesel exhaust fluid (DEF), changes the chemistry and eliminates the NOx and greenhouse gases, so that you have (a little water and nitrogen) coming out of the tailpipe.

Q: What does exhaust aftertreatment mean?

A: An aftertreatment system is a method or device for reducing harmful exhaust emissions from internal-combustion engines. In other words, it is a device that cleans exhaust gases to ensure the engines meet emission regulations.

As one of the leading exhaust aftertreatment system manufacturers and suppliers in China, we warmly welcome you to buy exhaust aftertreatment system for sale here from our factory. All our products are with high quality and competitive price.

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