Title:
ディーゼルパティキュレートフィルタの洗浄方法
Document Type and Number:
Japanese Patent JP7246846
Kind Code:
B2
Abstract:
To provide a technique for removing a harmful ash component accumulated on a DPF(diesel particulate filter) at a high removal ratio which cannot be achieved in conventional cleaning.SOLUTION: A method for cleaning a diesel particulate filter on which an ash component, which is a compound of at least one element selected from P, S, Ca and Zn contained in an exhaust gas, is accumulated, comprises immersing the diesel particulate filter, on which the ash component is accumulated, in a cleaning fluid containing a cleaning component which enables solubilization of the ash component in water, thereby dissolving the ash component in water and removing the same. Specifically, the afore-said cleaning component may comprise citric acid, sodium citrate, ethylenediamine tetraacetic acid (EDTA), tartaric acid and so on.SELECTED DRAWING: Figure 3
Inventors:
Hidenori Suzuki
Hiroki Kataoka
Yu Ikegawa
Dai Isohata
Kenichi Iyoda
Hiroshi Urushibara
Toshiki Oya
Yuhei Imanishi
Hiroki Kataoka
Yu Ikegawa
Dai Isohata
Kenichi Iyoda
Hiroshi Urushibara
Toshiki Oya
Yuhei Imanishi
Application Number:
JP2017174712A
Publication Date:
March 28, 2023
Filing Date:
September 12, 2017
Export Citation:
Assignee:
Tokyo Filter Co., Ltd.
Hino Motors Ltd.
Hino Motors Ltd.
International Classes:
B01D41/04; B08B3/04; F01N3/021
Domestic Patent References:
| JP2004270688A | ||||
| JP724488A | ||||
| JP51125959A | ||||
| JP2002361052A |
Attorney, Agent or Firm:
Patent Attorney Corporation Isshiki International Patent Office
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