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Effects of Mn deposits from MMT on automotive catalysts in the absence and presence of other fuel additives

Journal Article · · Environ. Sci. Technol.; (United States)
DOI:https://doi.org/10.1021/es60138a008· OSTI ID:6633148
The chemical effects of deposits from methylcyclopentadienyl manganese tricarbonyl (MMT) on three-way catalysts were investigated. Automotive exhaust was simulated by the combustion of isooctane. Depending on the experiment, MMT and/or other fuel additives were introduced. Two formulations on monolithic supports did not show any chemical poisoning beyond that caused by the same fuels without MMT. In addition, no effect of MMT on the sulfuric-acid formation over the same catalysts was found. A pronounced catalytic effect of the Mn deposit on the exhaust composition upstream of the catalyst caused a decrease of the NO concentration and an increase of the unburnt hydrocarbons.
Research Organization:
Ford Motor Co., Dearborn, MI
OSTI ID:
6633148
Journal Information:
Environ. Sci. Technol.; (United States), Journal Name: Environ. Sci. Technol.; (United States) Vol. 12:2; ISSN ESTHA
Country of Publication:
United States
Language:
English