PURIFICATION DEVICE OF DIESEL ENGINE EMISSION EXHAUST GAS

摘要

The present invention relates to an exhaust gas purification device for a diesel engine, and in particular, to heat the combustion network by an electric heater in a primary combustion chamber for post-treatment of exhaust gas of a diesel engine, to burn soot and unburned hydrocarbon, and to apply a second catalyst to the honey. It passes through the comb to remove NOx, oxidizes unburned hydrocarbons, particulate matter and carbon monoxide so that it can be used continuously without precipitation and periodic cleaning of particles, and has a high conversion rate for hydrocarbons, particulate matter, NOx and carbon monoxide at low temperature. , Metal-supported refractory inorganic oxides and rare earth oxides formed by supporting platinum group metals and additives such as Ni, lanthanum-based metals and other active metals in alumina, zeolites and yttria, and Ni in CeO ₂ and La ₂ O ₃ ; After supporting the active material containing at least one element selected from Cu, V, Cr, Co, dried and calcined The present invention relates to an exhaust gas purifier for a diesel engine, which uses an aqueous slurry to form an aqueous slurry, coats a honeycomb having a monolith structure, and calcinates the coating carrier.