FIELD: process engineering.
SUBSTANCE: invention relates to catalytic filtration of diesel soot. Catalytic filter for diesel soot comprises filter element coated by catalytic agent to allow diesel soot to settle in contact with catalytic agent when diesel engine exhaust comes through porous filter element modified as follows: catalytic agent comprising alkaline metal, cerium and oxygen with molar ration of alkaline metal to cerium makes, in the case of catalytic agent, varies from 0.5 to 5. Method of reducing ignition temperature or diesel soot oxidation temperature comprises the stage of bringing exhaust gas in contact with catalytic agent. Catalyst comprises catalytic agent that includes alkaline metal, cerium and oxygen with molar ration of alkaline metal to cerium for catalytic agent varies from 0.5 to 5.
EFFECT: reduced ignition or diesel soot oxidation temperature.
25 cl, 5 dwg, 1 tbl, 4 ex
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SU1530083A3 |
