Method for the catalytic removal of nitrogen oxides from exhaust gases by means of a reducing agent
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United States of America Patent
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Oct 16, 1990
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N/A
app pub date -
Jul 25, 1989
filing date -
Jul 25, 1988
priority date (Note) -
Expired
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Abstract
A method for the removal of nitrogen oxides contained in exhaust gases of an optionally fluctuating composition with a temperature of 0.degree.-600.degree. C. by means of catalytic reduction at a preselected stoichiometric ratio between the concentration of reducing agent and the concentration of nitrogen oxide in which the reducing agent is dosed in a pulsed manner.
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