Title:
SELECTIVE CATALYTIC REDUCTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/043948
Kind Code:
A1
Abstract:
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.
Inventors:
KIM KI MO (KR)
KIM SOK HA (KR)
LEE JAE MOON (KR)
KIM EUN TAEK (KR)
KIM SOK HA (KR)
LEE JAE MOON (KR)
KIM EUN TAEK (KR)
Application Number:
PCT/KR2017/008690
Publication Date:
March 08, 2018
Filing Date:
August 10, 2017
Export Citation:
Assignee:
DOOSAN ENGINE CO LTD (KR)
International Classes:
F01N3/20; F01N3/30; F01N9/00
Foreign References:
KR101445038B1 | 2014-09-26 | |||
KR20150133990A | 2015-12-01 | |||
KR101238777B1 | 2013-03-04 | |||
JP2014098340A | 2014-05-29 | |||
KR101417296B1 | 2014-07-08 |
Attorney, Agent or Firm:
YOON, Yu Kwang et al. (KR)
Download PDF: