Effect of an economical oxidation catalyst formulation on regulated and unregulated pollutants from natural gas fueled heavy duty transit buses
mode - bus, place - north america, policy - environment, technology - alternative fuels
Natural gas transit bus; Unregulated emissions; Oxidation catalyst; Regulated emissions
The paper discusses the performance of heavy-duty natural gas transit buses retrofitted with economic oxidation formulation oxidation catalysts in reducing regulated and unregulated emissions. The regulated emissions exhibited a 99% reduction in emissions of carbon monoxide, a 62% reduction in emissions of hydrocarbons with the presence of the oxidation catalyst, and a 96% decrease in carbonyl compound emissions. The catalyst formulation effectively targeted the lower chain volatile hydrocarbon fraction in the exhaust, which generally requires high light-off temperatures. Overall, the catalyst produced a 93% reduction in emissions of volatile organic compounds and was effective in reducing PAH emissions by 46%.
Permission to publish the abstract has been given by Elsevier, copyright remains with them.
Thiruvengadam, A., Carder, D.K., Krishnamurthy, M., Oshinuga, A., & Gautam, M. (2011). Effect of an economical oxidation catalyst formulation on regulated and unregulated pollutants from natural gas fueled heavy duty transit buses. Transportation Research Part D: Transport and Environment Article in Press, Corrected Proof.