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Patent Searching and Data


Title:
EXHAUST GAS PURIFICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2016/079937
Kind Code:
A1
Abstract:
An exhaust gas purification system for purifying an exhaust gas discharged from an energy conversion part (100), the system comprising a reservoir part (4) which retains a reducing solution that reduces nitrogen oxides contained in the exhaust gas, a catalyst (22) which has been disposed in an exhaust gas passage (11) and accelerates the reduction reactions of the nitrogen oxides, and a supply part (3) which supplies, to the catalyst (22), the reducing solution supplied from the reservoir part (4). The reducing solution comprises urea, which is a reducing agent for reducing nitrogen oxides contained in the exhaust gas, a solute (70) which is not urea, and a solvent in which the reducing agent and the solute are soluble. The solute (70) is constituted of molecules each comprising: a first moiety (71), which, in cases when the temperature of the reducing solution has fallen to or below a predetermined reference temperature, comes selectively close to solid/liquid interfaces (80) within the solvent; and a second moiety (72), which has been connected to the first moiety (71) and has a poor affinity for the solvent.

Inventors:
FUSE, Takuya (C/O DENSO CORPORATION, 1-1 Showa-cho, Kariya-cit, Aichi 61, 〒4488661, JP)
KANEKO, Takashi (C/O DENSO CORPORATION, 1-1 Showa-cho, Kariya-cit, Aichi 61, 〒4488661, JP)
INAGAKI, Kouji (C/O DENSO CORPORATION, 1-1 Showa-cho, Kariya-cit, Aichi 61, 〒4488661, JP)
Application Number:
JP2015/005514
Publication Date:
May 26, 2016
Filing Date:
November 03, 2015
Export Citation:
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Assignee:
DENSO CORPORATION (1-1 Showa-cho, Kariya-city Aichi, 61, 〒4488661, JP)
International Classes:
B01D53/94; F01N3/08
Foreign References:
JP2010519025A2010-06-03
JP2002001066A2002-01-08
JP2013032456A2013-02-14
JPS5277876A1977-06-30
JP2011528412A2011-11-17
JPH02501283A1990-05-10
Attorney, Agent or Firm:
KIN, Junhi (6th Floor, Takisada Bldg. 2-13-19, Nishiki, Naka-ku, Nagoya-cit, Aichi 03, 〒4600003, JP)
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