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    • 3. 发明公开
    • ACTIVATED CARBON AND COAL COMBUSTION RESIDUE TREATMENT SYSTEM AND METHOD
    • BEHANDLUNGSSYSTEMFÜRRÜCKSTÄNDEDER AKTIVKOHLE- UND KOHLEVERBRENNUNG
    • EP2825293A4
    • 2015-11-18
    • EP13761498
    • 2013-03-14
    • MERCUTEK LLC
    • D AMICO PETERPOLING CHRISTOPHERLESNIAK THOMAS
    • B01D53/64B01D53/10B01J20/20B01J20/34
    • B01J20/3416B01D53/10B01D2253/102B01D2257/60B01D2258/0283B01D2258/0291B01J20/20B01J20/3483
    • A system and method for producing a modified coal ash involves collecting a bulk quantity of such coal ash, generally after it has been produced or landfilled, or is otherwise at temperatures closer to ambient, as opposed to power plant operational temperatures. In one possible implementation, the method herein involves removing carbon from the coal ash, such removal occurring by exposing the carbon to indirect heat, that is, externally-applied heat. For coal ashes with higher ash content. This removal is accomplished by subjecting the coal ash stream to heat, in one implementation, ranging between 850°F and 1200°F, and such heat exposure occurring from about 10 minutes to about 30 minutes. The range of exposure time for the coal ash is determined so as to reduce the LOI from its initial level to a level acceptable for intended re-use or recycling. In one application, the LOI of carbon in the ash is reduced to 3% or less carbon. Upon completion of the range of the exposure time, the coal ash stream is removed from the sublimation heat, thereby forming a modified coal ash.
    • 一种通过加热废PAC和/或CCR中的至少一种来分离至少一种重金属与废PAC和/或煤燃烧残留物(CCR)的方法, /或CCR以产生清洁流和重金属流,将重金属流与水溶性碱土金属硫化物结合以产生组合流,以及从至少一种重金属流中除去至少一部分重金属 组合流。 加热可进一步包括在惰性气氛中加热废PAC和/或CCR中的至少一种。 此外,组合可以包括将重金属流与水溶性碱土金属硫化物和催化剂和/或表面活性剂或超分散剂结合。