| 摘要 |
PURPOSE: Combustion and flue gas cleanup methods and apparatus and, in particular, to a new and useful apparatus and method for removing mercury from flue gases generated by combustion, through the use of an alkaline sorbent are provided. CONSTITUTION: A mercury removal system (10) for removing mercury from combustion flue gases is provided in which alkaline sorbents (14) at generally extremely low stoichiometric molar ratios of alkaline earth or an alkali metal to sulfur of less than 1.0 are injection (15,16,18,20,22) into a power plant system at one or more locations to remove at least between about 40% and 60% of the mercury content from combustion flue gases. Small amounts of alkaline sorbents (14) are injected into the flue gas stream at a relatively low rate. A particulate filter is used to remove mercury-containing particles downstream of each injection point used in the power plant system
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