KIM, Ki Mo,KIM, Sok Ha,LEE, Jae Moon,KIM, Eun Taek
申请号：
WO2017KR08690
公开号：
WO2018043948(A1)
申请日:
2017.08.10
申请国别(地区):
世界知识产权组织国际局
年份:
2018
代理人:
摘要：
An embodiment of the present invention relates to a selective catalytic reduction system, and the selective catalytic reduction system for removing a nitrogen oxide contained in an exhaust gas comprises a control unit which includes a reducing agent purge mode for blocking the supply of a reducing agent to a reducing agent supply line and then controlling a cleaning water supply unit, thereby removing the reducing agent or foreign substances remaining in the reducing agent supply line, and a passage purge mode for actuating a recirculation blower and thereby removing an exhaust gas remaining in a reactor and a recirculation passage, and which consecutively performs the reducing agent purge mode and the passage purge mode.
