Sulfide Emissions from Catalyst-Equipped Cars Environmental Science Dept., General Motors Research Lab. Warren, MI

Format:

Conference/Event

Author/Creator:

Cadle, Steven H., author.

Conference Name:

1978 Automotive Engineering Congress and Exposition (1978-02-27 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1978

Summary:

An on-stream gas chromatographic technique was developed to analyze grab samples of diluted and undiluted vehicle exhaust for the reduced sulfur compounds which cause rotten-egg odors. This method was used to conduct a brief survey of two cars with modified carburetors, four customer cars with odor problems, and five experimental three-way catalyst cars. The cars were tested on a chassis dynamometer using a driving cycle developed for this study. Hydrogen sulfide and carbonyl sulfide were frequently measured. Ethyl mercaptan and fuel sulfur components were occasionally detected. The sulfides were emitted most often when the catalyst was hot, the space velocity was low and the carburetion was rich. The maximum H2S or COS concentration measured in undiluted exhaust was <10 ppm. Therefore, these emissions pose no known health problem, but can be an odor problem

Notes:

Vendor supplied data

Publisher Number:

780200

Access Restriction:

Restricted for use by site license