Catalyst principle: increase the activity of three gases CO, HC and NOx, prompting them to carry out certain oxidation-reduction chemical reactions; CO is oxidized to colorless, non-toxic carbon dioxide gas at high temperature; HC compounds are oxidized to water (H2O) and carbon dioxide; NOx is reduced to nitrogen and oxygen; mainly for CO and HC pollutants to be treated.
Reaction equation:
Oxidation: HC + O2 → CO2 + H2O
CO + O2 → CO2
Reduction: NO+CO → N2+CO2
NO+HC → CO2+N2+H2O
NO+H2 → N2+H2O
Water vapor reformation: CO+H2O → CO2+H2
HC+H2O → CO+H2
Emission standards: EU, EPA, CARB
Exhaust emission characteristics: conventional pollutants CO, HC, NOx, complex composition, high temperature, high air velocity, so the requirements of the catalyst are very demanding.
Features of our catalytic converters for universal small gasoline engine:
●Excellent catalytic performance, wide three-effect window, high conversion efficiency
●Excellent temperature, air velocity and air-fuel ratio characteristics
● Lower precious metal content of catalyst, higher cost performance
●Coating of the catalysts is even and solid
●Excellent durability performance to meet CARB and above emission standards and durability requirements
Application areas: universal small gasoline engine