Title:
EXHAUST GAS PURGING COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2019/097878
Kind Code:
A1
Abstract:
The exhaust gas purging composition according to the present invention comprises Y-Mn-O and Al2O3, and satisfies formula 1 and formula 2. Formula 1: SSA retention rate (%)>-61.54×(Y-Mn-O proportion)+75.55. Formula 2: SSA retention rate (%)>45. In formula 1 and formula 2, the SSA retention rate is represented by "post-endurance specific surface area/initial specific surface area×100(%)" (for the definitions of the respective specific surface areas, see the description). The Y-Mn-O proportion denotes the mass proportion (Y-Mn-O/(Y-Mn-O+Al2O3)) of Y-Mn-O with respect to the total mass of Y-Mn-O and Al2O3 in the exhaust gas purging composition.
Inventors:
YAMAGUCHI MICHITAKA (JP)
WATANABE SATOSHI (JP)
WATANABE SATOSHI (JP)
Application Number:
PCT/JP2018/037064
Publication Date:
May 23, 2019
Filing Date:
October 03, 2018
Export Citation:
Assignee:
MITSUI MINING & SMELTING CO (JP)
International Classes:
B01D53/94; B01J23/68; F01N3/10; F01N3/28
Domestic Patent References:
| WO2012093600A1 | 2012-07-12 | |||
| WO2015079721A1 | 2015-06-04 | |||
| WO2009130869A1 | 2009-10-29 |
Foreign References:
| US20160023188A1 | 2016-01-28 | |||
| JP2016505376A | 2016-02-25 |
Attorney, Agent or Firm:
SHOWA INTERNATIONAL PATENT FIRM (JP)
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