Abstract
The main objective of earlier studies dealing with contaminant poisoning of auto exhaust catalysts was to develop catalysts with superior tolerance to contaminant poisons. The added objectives of our present research efforts are: to determine the “optimum permissible” operating conditions for minimizing contaminant poisoning, and to provide information for the development of methods for the rejuvenation of catalysts which have been severely deactivated, predominantly by contaminant poisoning.
Work is being conducted to determine the following: a) the form, physical and chemical, in which the contaminants are initially deposited on the catalyst, b) the subsequent gas-solid and solid state reactions which these deposits participate in once on the surface, c) the temperature dependence of these reactions, d) the various possible reaction products and their relative thermal stabilities, and e) the relative “toxicities” of the various contaminant poisons.
Results from preliminary studies and work in progress will be presented.
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© 1975 Plenum Press, New York
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McArthur, D.P. (1975). NOx Catalyst Degradation by Contaminant Poisoning. In: Klimisch, R.L., Larson, J.G. (eds) The Catalytic Chemistry of Nitrogen Oxides. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-8741-5_15
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DOI: https://doi.org/10.1007/978-1-4615-8741-5_15
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