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ProductsAuto Exhaust Catalysts

We offer catalysts that are essential to reduction of harmful substances contained in auto exhaust gas.

The rapid growth of motorization, and in particular private automobile ownership in emerging economies such as China, has brought with it an urgent need to control exhaust emissions. Governments around the world are recognizing the environmental harm caused by untreated automobile exhaust and are imposing increasingly strict regulations and controls. N.E. CHEMCAT is one of the world's leading producers of auto exhaust catalysts that act to neutralize harmful exhaust emissions. N.E. CHEMCAT works closely with the world's leading automakers and supplies them with products of superior durability, conversion, light off performance.

How Automobile Exhausts Are Purified

MAIN COMPONENTS OF AUTOMOTIVE EXHAUST EMISSION

CO - Carbon Monoxide

Carbon monoxide is generated from incomplete combustion and binds with blood hemoglobin to interfere with the delivery of oxygen through the circulation system

HC - Hydro Carbons

Hydrocarbon is generated from incomplete combustion. It associated with liver damage, and is toxic as well as carcinogenic.

NOx - Nitrogen Oxides

NOx is generated as thermal NOx in burners. Its photochemical effects are high. It is associated with smog and acid rain.

PM3 COMPONENTS IN DIESEL EXHAUST

Diesel engines discharge PMs (Particulate Matter) in addition to CO, HC and Nox.
PM is composed of SOF,ISOF and Sulfate

PM (Particulate Matter) : 粒子状物質

[1] SOF (Soluble Organic Fraction)
[2] ISOF (Insoluble Organic Fraction)
[3] Sulfate

*Item 1 (SOF) and item 2 (ISOF) are generated as the result of incomplete combustion of fuels and lubricant. Those are principle causes of disturbance of pulmonary function. The item 3 (Sulfate) is produced from oxidation of sulfur in fuels.

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