Effect of an economical oxidation catalyst formulation on regulated and unregulated pollutants from natural gas fueled heavy duty transit buses

Authors

Arvind Thiruvengadam
Daniel K. Carder
Mohan Krishnamurthy
Adewale Oshinuga
Mridul Gautam

Document Type

Journal Article

Publication Date

2011

Subject Area

mode - bus, place - north america, policy - environment, technology - alternative fuels

Keywords

Natural gas transit bus; Unregulated emissions; Oxidation catalyst; Regulated emissions

Abstract

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%.

Rights

Permission to publish the abstract has been given by Elsevier, copyright remains with them.

Comments

Transportation Research Part D Home Page:

http://www.sciencedirect.com/science/journal/13619209

Recommended Citation

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.