Oxides of nitrogen carbon monoxide hazardous air pollutants volatile organic compounds.
Scr exhaust system.
An scr selective catalytic reduction system is a system installed on diesel vehicles to reduce harmful nitrous oxide nox emissions.
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The exhaust aftertreatment devices that are applied to vehicles are diesel oxidation catalysts doc diesel particulate filters dpf and selective catalytic reduction scr catalysts.
3 1 4 3 catalytic reduction systems selective catalytic reduction scr systems selectively reduce no x emissions by injecting ammonium nh 3 into the exhaust gas stream upstream of a catalyst.
Selective catalytic reduction scr is a means of converting nitrogen oxides also referred to as no x with the aid of a catalyst into diatomic nitrogen n 2 and water h 2 o a reductant typically anhydrous ammonia aqueous ammonia or urea solution is added to a stream of flue or exhaust gas and is adsorbed citation needed onto a catalyst as the reaction drives toward completion carbon.
The pollutants that are reduced include.
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Miratech s selective catalyst reduction system scr reduces regulated exhaust pollutants for stationary reciprocating diesel dual fuel and lean burn natural gas engines.
Using a combination of physical mechanisms and chemical reactions these systems can under the right conditions achieve near complete removal of particulates.
Ipu s scr system alone can achieve a 99 8 reduction of nox emissions.
Selective catalytic reduction for gensets will reduce nox emissions by combining exhaust gases with the reductant adblue a type of urea and passing it over a catalyst.
It works by injecting an automotive grade urea or diesel exhaust fluid def through a specially designed catalyst into the exhaust stream of a diesel engine.
In this video i explain how the adblue system works.