Three-way catalytic converters are effective in preventing air pollution from stoichiometric engines fueled by natural gas, propane and gasoline.

In this case, the oxidation of carbon monoxide and hydrocarbons as well as the reduction of nitric oxides occur simultaneously to form the harmless products CO2, H2O and N2. The reaction conditions and in particular the air to fuel (A/F) ratio determine the efficiency of the conversion. The catalyst functions most efficiently when the engine runs slightly below the stoichiometric A/F ratio (λ = 1).

Next to TWCs for aftermarket passenger cars INTERKAT in particular provides TWCs for stationary applications, i.e. stoichiometric natural gas engines as used in CHP units.

Product characteristicCustomer benefitApplications
broad lambda windowhigh conversions over a broad A/F ratioStationary Gas Engines
high thermal stabilitylong term durability and lifetimeStationary Gas Engines