| abstract |
An exhaust gas purification system that is excellent in purification efficiency of NO x contained in exhaust gas discharged from a diesel engine, has a small pressure loss, and can be mounted even in a limited space. A porous partition wall having a large number of pores arranged so as to form a plurality of cells communicating between two end faces, and any one end face or so as to plug the cells. a honeycomb filter 1 having the plugged portions disposed inside the cell, the honeycomb filter 1 and the honeycomb catalyst carrier having substantially the same shape, and for the NO x selective reduction carried on the surface and / or pore surface of the partition wall and the NO x purification catalyst 12 having an SCR catalyst or the NO x storage catalyst comprises, in an exhaust gas passage 6 through which exhaust gas flows discharged from a diesel engine 5, the honeycomb filter 1 and NO x purifying catalyst Reference numeral 12 denotes an exhaust gas purification system 10 arranged in this order. [Selection] Figure 1 |