EXHAUST EMISSION CONTROL METHOD AND EXHAUST EMISSION CONTROL SYSTEM

摘要

In order to remove by burning captured PM by using microscopic luminescent discharge that repeats generation and extinction randomly in time and space on the surface of an insulating filter with a minimum power consumption and to enhance the capturing efficiency and combustion-removal efficiency of PM in exhaust gas from diesel engines or the like, at least one electrode pair (13) are arranged on or in the vicinity of the surface of an insulating capturing member (12) for capturing particulate matter (41) in exhaust gas, a predetermined voltage (Vs) is applied between the electrode pair (12) to generate a microscopic luminescent discharge (42) that repeats generation and extinction randomly in time and space on the surface of the insulating capturing member (12), and the microscopic luminescent discharge (42) generated by the application of this predetermined voltage (Vs) is used to remove by burning the particulate matter (41) captured on the insulating capturing member (12).