Processes for operating a utility boiler and methods therefor
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United States of America Patent
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Dec 20, 2011
Grant Date -
Nov 16, 2006
app pub date -
Dec 19, 2005
filing date -
May 10, 2005
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Abstract
There is a process for operating a utility boiler. The process has the following steps: a) continuously adding one or more slag control agents, one or more oxygen-generating agents, and a fuel oil to a furnace of the utility boiler; b) providing air to the furnace; c) burning the fuel oil to generate heat and an exhaust gas; d) periodically or continuously varying the dosage rates of the one or more slag control agents and/or the one or more oxygen-generating agents to maintain to substantially maintain one or more emissions variables in the exhaust gas within pre-determined limits. There is also a method for reducing emissions from a utility boiler and a method for reducing slag deposits within a utility boiler.
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