With the increase of air pollution, especially haze weather, the tolerance of society to air pollution has reached its limit. Through long-term scientific investigation of the sources of air pollutants, it is found that the contribution rate of automobile exhaust to air pollution is more than 50%. Our diesel vehicles are still growing year by year, so the emission reduction of diesel vehicles is t...
The SCR/Urea Solution is aimed to apply the stricter emission regulations for Vehicles or heavy machineries with diesel engines. The particulate matter and nitric oxide are the main sources of pollution coming out from the exhaust system, and there are two main after treatment technics worldwide, the SCR and the EGR+DEF. The SCR is mainly used in Euro and Asia, but also the US since 2010. As...
There have been two approaches to regulatory compliance: EGR and SCR. EGR was implemented January 1, 2007 and SCR was implemented January 1, 2010. EGR was able to meet the Federal Standards for 2007, but not able to meet the new standards for 2010. In 2007 the Emissions Standard was 1.2 NOx (g/hp.pr) and it could be reached using EGR technology, but January 1, 2010 this standard dropped to .02g/HP...
Nowadays, the environmental problem is highly concerned around the world. The problem of Global Warming, Greenhouse effect and Photochemical Smog are emphasized over 15 years, but it becomes worse and worse. Although the national solutions were announced, tragedies are never stop. As recently decades, the development of motor vehicle is growing rapidly. The traditional domestic car were ...
Introduction As the emission standard of European is announced, Adblue solution becomes a controversial chemical production. The main purpose of Adblue is reducing Nitric Oxides in the emission of diesel engines. Therefore, a series of environmental issues will be decreased. However, a plenty of truck drivers are not willing to purchase this solution due to higher cost of delivery. The Adblue Emul...
1. Shield the vicious circle caused by the SCR system Blocking the work of the scr system will leave the nozzle in a helpless situation and can only wait in a high temperature environment. Urea pumps and pipelines that have not been operated for a long time will crystallize and block due to the evaporation of the remaining liquid moisture. 2. No regular replacement If dust is accidentally brought ...
About the Selective Catalytic Reduction system of the diesel vehicle SCR is a technology that uses a urea based diesel exhaust fluid (known as AdBlue or DEF) and a catalytic converter to significantly reduce oxides of nitrogen (NOx) emissions. All major engine manufacturers have stated that they will eventually use Selective Catalytic Reduction (SCR) to strictly enforce engine emissions regulation...
Exhaust gas treatment fluid, commonly known as automotive urea fluid, is a consumable that must be used in SCR technology and is mainly used for exhaust gas treatment of diesel engines. With the policy for energy conservation and emission reduction, most light trucks on the market are now equipped with urea tanks, but many people cannot tell well what is the difference between automot...
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