Title:
CONTROL METHOD FOR REDUCTANT GENERATION DEVICE, EXHAUST PURIFICATION METHOD, REDUCTANT GENERATION SYSTEM, AND EXHAUST PURIFICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/097321
Kind Code:
A1
Abstract:
Provided is a control method for a reductant generation device 100 comprising: a sprayer 10 capable of spraying a reductant precursor 50; and a heater 20 including a ceramic base 21, the heater 20 being disposed downstream of the sprayer 10 and capable of generating a reductant 60 by heating the reductant precursor 50. This control method includes: an infiltrating step for spraying the reductant precursor 50 through the sprayer 10 when the heater 20 is not heated, and infiltrating the reductant precursor 50 into the ceramic base 21; and a heating step A for heating the reductant precursor 50 with the heater 20 after the infiltrating step, and generating the reductant 60 while spraying the reductant precursor 50 through the sprayer 10.
Inventors:
SAIKI KATSUMI (JP)
SHIBAGAKI YUKINARI (JP)
SHIBAGAKI YUKINARI (JP)
Application Number:
PCT/JP2021/021269
Publication Date:
May 12, 2022
Filing Date:
June 03, 2021
Export Citation:
Assignee:
NGK INSULATORS LTD (JP)
International Classes:
B01J35/02; B01D53/92; B01J35/04; B01J38/00; F01N3/08; F01N3/24; F01N3/28; F01N9/00
Domestic Patent References:
| WO2014148506A1 | 2014-09-25 |
Foreign References:
| US20200018207A1 | 2020-01-16 | |||
| JP2017180299A | 2017-10-05 |
Attorney, Agent or Firm:
AXIS PATENT INTERNATIONAL (JP)
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