Nett Technologies have introduced the new D-series diesel catalyst formulations to be used in the Nett line of emission control products for off-highway diesel engines. The D-series diesel catalysts, available from Norman G Clarke , features advanced catalyst technology designed for high reductions of diesel particulate and hydrocarbon emissions, as well as diesel odor.
Diesel engines are characterised by low exhaust gas temperatures. Effective catalytic emission control of hydrocarbons (HC) is, therefore, a problem in light duty diesel applications. All emission control catalysts require high exhaust gas temperatures to perform efficiently.That problem has been resolved in the D-series diesel catalysts by incorporating zeolite-based hydrocarbon trapping materials into the catalyst washcoat. Zeolites, known also as molecular sieves, have the ability to adsorb hydrocarbons at low temperatures and release them at high temperatures, where the catalyst operates with high efficiency. Thus, the D-series diesel catalysts allow the benefits of diesel oxidation catalysts to extend into low temperature regions, where conventional catalysts remain inactive.