NOX EMISSION PURIFICATION SYSTEM AND METHOD THE SAME

摘要

A nitrogen oxide purification system comprises: a blended fuel storage member (100) where blended fuel between a nitrogen oxide reducing agent and fuel is stored; a supply member (200) which supplies the blended fuel stored in the blended fuel storage member (100) to an internal combustion engine (10); and a selective catalytic reduction (300) which is installed in an exhaust pipe (20) where exhaust gas emitted from the internal combustion engine (10) enters, and reacts the nitrogen oxide contained in the exhaust gas to the nitrogen oxide reducing agent blended in the exhaust gas in order to reduce the nitrogen oxide to nitrogen and water. A nitrogen oxide purification method comprises: a blended fuel generating step (S01) which generates blended fuel by a blending nitrogen oxide reducing agent and fuel; a blended fuel supplying step (S02) which supplies the blended fuel to the internal combustion engine; and a nitrogen oxide removing step (S03) which reacts nitrogen oxides contained in the exhaust gas emitted from the internal combustion engine to the nitrogen oxide reducing agent blended in the exhaust gas in the selective catalytic reduction in order to reduce the nitrogen oxide to nitrogen and water.