METHOD FOR REDUCING NITROGEN OXIDES IN INTERNAL COMBUSTION ENGINE AND APPARATUS THEREFOR

Title:

METHOD FOR REDUCING NITROGEN OXIDES IN INTERNAL COMBUSTION ENGINE AND APPARATUS THEREFOR

Document Type and Number:

WIPO Patent Application WO/2012/026472

Kind Code:

A1

Abstract:

Provided are: a method for reducing nitrogen oxides in an exhaust gas of an internal combustion engine, by which nitrogen oxides in an exhaust gas of an internal combustion engine can be easily and effectively reduced; an apparatus for reducing nitrogen oxides; and an internal combustion engine. A method for reducing nitrogen oxides in an exhaust gas of an internal combustion engine, which comprises: a step wherein air at atmospheric pressure or less is brought into contact with one surface of a water vapor permeable membrane (11) and water is caused to flow along the other surface of the water vapor permeable membrane (11), so that the air is humidified; and a step wherein the thus-humidified air is introduced into the internal combustion engine.

Inventors:

SHIMIZU ATSUSHI (JP)
OHNO HIROKAZU (JP)
NIIHAMA TOMOHIRO (JP)
TSUKAMOTO MASAHIRO (JP)

Application Number:

PCT/JP2011/068987

Publication Date:

March 01, 2012

Filing Date:

August 23, 2011

Export Citation:

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Assignee:

ASAHI KASEI CHEMICALS CORP (JP)
SHIMIZU ATSUSHI (JP)
OHNO HIROKAZU (JP)
NIIHAMA TOMOHIRO (JP)
TSUKAMOTO MASAHIRO (JP)

International Classes:

F02M25/032; F02B47/02

Foreign References:

JP2004525292A	2004-08-19
JP2005326032A	2005-11-24
JP2000015066A	2000-01-18
JPH03202668A	1991-09-04
JP2003506656A	2003-02-18
JP2010187671A	2010-08-24

Other References: