Method and Apparatus for Reducing Nitrogen Oxides in Internal Combustion Engine
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United States of America Patent
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Issued Date -
Jun 13, 2013
app pub date -
Aug 23, 2011
filing date -
Aug 24, 2010
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Abandoned
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Abstract
To provide a method of reducing a nitrogen oxide in an exhaust gas of an internal combustion engine, an apparatus for reducing a nitrogen oxide, and an internal combustion engine system that can effectively reduce a nitrogen oxide in the exhaust gas of the internal combustion engine in a simple manner. A method of reducing a nitrogen oxide in an exhaust gas of an internal combustion engine includes: a step of moisturizing air at a pressure equal to or lower than atmospheric pressure by bringing the air into contact with one surface of a steam permeable membrane (11) while flowing water along the other surface of the steam permeable membrane (11); and a step of introducing the moisturized air into the internal combustion engine.
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