Method for controlling NOx concentration in exhaust gas in combustion facility using pulverized coal
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United States of America Patent
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Jul 25, 2017
Issued Date -
N/A
app pub date -
Oct 14, 2016
filing date -
Feb 25, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A method for controlling an NOx concentration in an exhaust gas in a combustion facility by: measuring a reaction velocity ki of each of a plurality of chars, each corresponding to a plurality of types of pulverized coals; determining a relationship between the NOx concentration in the exhaust gas and the reaction velocity ki for each of the chars; (iii) blending the plurality of the types of the pulverized coal, wherein a blending ratio of the plurality of the types of the pulverized coal is determined by using, as an index, a reaction velocity kblend of the char of the blended pulverized coal, which corresponds to a target NOx concentration or below, on the basis of the relationship; and supplying the blended pulverized coal to the combustion facility as the fuel of the combustion facility.
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