Login| Sign Up| Help| Contact|

Patent Searching and Data


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)
Application Number:
PCT/KR2017/008690
Publication Date:
March 08, 2018
Filing Date:
August 10, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
DOOSAN ENGINE CO LTD (KR)
International Classes:
F01N3/20; F01N3/30; F01N9/00
Foreign References:
KR101445038B12014-09-26
KR20150133990A2015-12-01
KR101238777B12013-03-04
JP2014098340A2014-05-29
KR101417296B12014-07-08
Attorney, Agent or Firm:
YOON, Yu Kwang et al. (KR)
Download PDF: