UNIFICATION CATALYTIC CONVERTER APPARATUS TO REMOVE PARTICULATE MATTER AND NITROGEN OXIDE

摘要

PURPOSE: A integrated catalytic converter is provided to reduce the nitrogen oxide and particulate matter among the exhaust gas of the diesel engine at the same time by forming LNT (Lean NOx Trap) catalyst and SCR (Selective Catalytic Reduction) catalyst in the filter for removing particulate matter as double layer integrated. CONSTITUTION: The integrated catalyst converter includes: a filter(120) for removing particulate matter of the diesel engine which coated the catalyst for LNT, which oxidizes hydrocarbon of the exhaust gas, the carbon monoxide, and solvent and nitrogen oxide (NO) and generates nitrogen and ammonia (NH3) which is the intermediate product through the reaction of hydrocarbon the reducing agent and occluded nitrogen oxide; and filter(140), for eliminating particulate matter of the diesel engine coating the catalyst for the LNT, which eliminates unpurified nitrogen oxide by using the ammonia which is generated from the filter for eliminating particulate matter coating the catalyst for LNT. The integrated catalyst converter includes a sprayer(130) to flow in the necessary reducing agent for LNT catalyst in the filter for eliminating particulate matter coating the catalyst for LNT.