Title:
EXHAUST GAS TREATMENT SYSTEM AND EXHAUST GAS PURIFICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2019/208478
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a low-cost exhaust gas treatment system which solves the problems of conventional HC-SCR systems and achieves a high NOx removal rate especially at low temperatures. A hydrocarbon selective catalytic reduction (HC-SCR) system which is characterized by adding H2 together with a hydrocarbon to a diesel oxidation catalyst (DOC). In other words, an exhaust gas purification method which is characterized by removing NOx from an exhaust gas by adding H2 together with a hydrocarbon to a diesel oxidation catalyst (DOC) in a hydrocarbon selective catalytic reduction (HC-SCR) system.
Inventors:
SUZUKI HIDENORI (JP)
OKA KAZUKI (JP)
OKA KAZUKI (JP)
Application Number:
PCT/JP2019/016970
Publication Date:
October 31, 2019
Filing Date:
April 22, 2019
Export Citation:
Assignee:
TOKYO ROKI KK (JP)
International Classes:
F01N3/08; F01N3/035; F01N3/24; F01N3/28; F01N3/36
Foreign References:
| JP2011527404A | 2011-10-27 | |||
| JP2012087703A | 2012-05-10 | |||
| JP2002070538A | 2002-03-08 | |||
| JP2009150279A | 2009-07-09 | |||
| JPH1030430A | 1998-02-03 |
Attorney, Agent or Firm:
ISSHIKI & CO. (JP)
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