Automotive exhaust purification

E. Koberstein, Characterisation ofMultifunctional Catalystsfor Automotive Exhaust Purifications, SAE 770366, Society of Automotive Engineers, Warrendale, Pa., 1977. 

Kolios, G., Gritsch, A., Morillo, A., Tuttlies, U., Bernnat, J., Opferkuch, E, and Eigenberger, G. Heat-integrated reactor concepts for catalytic reforming and automotive exhaust purification. Applied Catalysis. B, Environmental, 2007, 70 (1—4), 16. 

E. Koberstein, B.H. Engler and H. Voelker, Catalytic Automotive Exhaust Purification - The European Situation 1985, SAE paper 852094. 

Kapteijn, R, Stegenga, S., and Dekker, N.J.J. Alternatives to noble metal catalysts for automotive exhaust purification. Catal Today 1993, 16, 273-287. 

Complete oxidation of hydrocarbons in air is a useful method for atmospheric purification, and has been sucessfully applied in automotive exhaust control. An important new area is the catalytic control of the emissions of volatile organic compounds (VOC) in a more general sense [1]. Many sources, low concentrations and wide temperature ranges can be involved. 

FIGURE 3.2 Block diagrams of two automotive emission control configurations, (a) Thermal reactor plus EGR. (b) Catalytic exhaust purification. 

DEVELOPMENT OF NON-NOBLE METAL CATALYSTS FOR THE PURIFICATION OF AUTOMOTIVE EXHAUST GAS... 

Development of Non-Noble Metal Catalysts for the Purification of Automotive Exhaust Gas",... 

NO reduction under the oxygen in excess condition will be the one of the nK>st difficult problems for the purification of automotive exhaust gas. We investigated the influence of... 

The experimental results indicated that the order of oxidation activity for the purification of automotive exhaust gases of three perovskite catalysts containing rare earth is as follows Lag7Srg3Co03>LaCo03>LaMn03. The results were confirmed by evaluation using a reactor. 

During the last three years, thirty patents have been published describing the use of rare earths in exhaust gas purification. In the event that all automotive catalysts in the USA were to contain 1% rare earth oxide, the market volume would be approximately 100 tons/year. It is probable that where Ce02 is used, the level will be between 1% and 10% in the catalyst. 

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