| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a cleaning method for efficiently removing deposit including ammonium hydrogen sulfate deposited on an exhaust gas flow channel of a combustion apparatus.SOLUTION: The cleaning method for deposit including ammonium hydrogen sulfate, deposited on an exhaust gas flow channel 2 of a combustion apparatus 1 is provided that includes a step of producing a reaction product of ammonium hydrogen sulfate included in the deposit of the exhaust gas flow channel, and a tertiary amine and/or a quaternary ammonium compound by adding the tertiary amine and/or the quaternary ammonium compound to exhaust gas, and a step of discharging the deposit from the combustion apparatus while controlling a temperature and a relative humidity, liquefying the reaction product, and keeping a state of the liquid, in at least a part of the exhaust gas flow channel of the combustion apparatus.</p> |
