公开(公告)号：US20170087510A1

公开(公告)日：2017-03-30

申请号：US15315505

申请日：2015-06-02

申请人： RIO TINTO ALCAN INTERNATIONAL LIMITED

发明人： Jean-Nicolas MALTAIS ,  Simon LECLERC ,  Cyril GAUDREAULT

IPC分类号： B01D53/40 ,  B01D53/02 ,  B01D53/81

CPC分类号： B01D53/40 ,  B01D53/02 ,  B01D53/508 ,  B01D53/565 ,  B01D53/62 ,  B01D53/685 ,  B01D53/81 ,  B01D53/83 ,  B01D2251/404 ,  B01D2251/604 ,  B01D2257/2045 ,  B01D2257/2047 ,  B01D2257/302 ,  B01D2257/404 ,  B01D2257/504 ,  B01D2258/025 ,  B01D2258/0283 ,  B01D2259/128 ,  F23J15/003 ,  F23J15/02 ,  F23J2215/10 ,  F23J2215/20 ,  F23J2215/30 ,  F23J2215/50 ,  F23J2217/10 ,  F23J2219/60 ,  Y02C10/04 ,  Y02E20/326

摘要： A dry scrubbing system and process wherein an acid gas comprising at least one pollutant is modified in a humid zone of a duct such that a relative humidity of between 2% and 90% is achieved. The humidified gas is then contacted with chalked lime in a reaction zone. The reaction zone components are subsequently filtered in a filtering zone to provide a filtered gas having reduced concentration of the at least one pollutant when compared to the initial acid gas.