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ERIC Number: EJ913225
Record Type: Journal
Publication Date: 2010-Feb
Pages: 3
Abstractor: As Provided
Reference Count: 9
ISSN: ISSN-0021-9584
Demonstration of a Catalytic Converter Using a Lawn Mower Engine
Young, Mark A.
Journal of Chemical Education, v87 n2 p180-182 Feb 2010
Catalytic conversion is an important tool in environmental-remediation strategies and source removal of pollutants. Because a catalyst is regenerated, the chemistry can be extremely effective for conversion of undesirable pollutant species to less harmful products in situations where the pollutants have accumulated or are being continuously produced. An important and well-known application is the catalytic converter in the exhaust system of an automobile. We have developed a laboratory experience that qualitatively demonstrates the use of a catalytic converter to decrease emissions from the exhaust of a small internal-combustion engine taken from a lawn mower. The experiment involves a flow-reactor system with an integrated mass spectrometer to monitor the flow-stream composition in real time. In addition to the techniques employed, the laboratory serves to highlight aspects of surface science and heterogeneous catalysis and also illustrates a significant problem associated with catalytic converters. (Contains 3 figures.)
Division of Chemical Education, Inc and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A