APPARATUS FOR REMOVING SOOT AND NOX IN EXHAUST GAS FROM DIESEL ENGINES

摘要

Disclosed is a plasma system for removing soot and nitrogen oxides (NOx) in exhaust gas from diesel engine. Such system comprises a diesel particulate filter for accommodating a honeycomb type porous element and at lest one pai r of electrodes; a plasma reactor for creating a predetermined amount of plasm a, mounted downstream or upstream of said diesel particulate filter; a catalyti c reactor filled with a catalyst selected from the group 1B metals, mounted downstream of said plasma reactor or said diesel particulate filter; and a hydrocarbon-feeding means for feeding hydrocarbon to exhaust gas, connected to an arbitrary position upstream of said plasma reactor. Therefore, soot and N Ox in the exhaust gas, which are components harmful to human beings, and are al so pollutants, can be effectively removed at a normal pressure by use of such system.