“Trapless” Trap, which makes possible the effective collecting of particulates in diesel exhaust gas and their simultaneous combustion has been developed by use of a ceramic foam in combination with catalysts containing copper salt. From a TEM photograph, it was observed that the particulate was rapidly oxidized by mobile copper ion, showing worm-eaten like spots. Screening of various base metal salts by TGA presented CUCl2-KCl-NH4VO3 and CuCl2-KCl-(NH4)6Mo7O24 as very active catalysts for diesel particulate oxidation. They had thermal stability up to 900°C when they were supported on titania. The results obtained by measuring the back pressure using 1.8L diesel engine suggest the above trap to be a self-cleaning trapless trap.
“Trapless” Trap – A Catalytic Combustion System of Diesel Particulates Using Ceramic Foam
Sae Technical Papers
SAE International Congress and Exposition ; 1983
1983-02-01
Conference paper
English
"Trapless" Trap - A Catalytic Combustion System of Diesel Particulates Using Ceramic Foam
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