| 摘要 |
<p>SO3 flue gas-condition systems (10) provide a controlled flow of flue gas-conditioning agent such as SO3 into a boiler flue gas and its entrained particulate material ahead of an electrostatic precipitator (14). The systems (10) monitor the opacity of the stack effluent and precipitator power and operate to maintain a flow of SO3-conditioning agent into the boiler flue gas to provide minimal opacity of the stack effluent. The systems operate at SO3-conditioning agent flow rate corresponding to minimal opacity of the stack effluent and to eliminate corrections that may be due to transient operating conditions such as boiler upsets, precipitator rapping and the like. The systems include features providing improved conversion of SO2 into SO3, integrated assemblies to provide a flow of SO2 and sulfur dioxide conversion units adapted to convert SO2 into SO3 at a plurality of remote SO3 injection sites.</p> |
