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公开(公告)号:US20090090277A1
公开(公告)日:2009-04-09
申请号:US11869122
申请日:2007-10-09
申请人: Ashok V. Joshi , Chett Boxiey
发明人: Ashok V. Joshi , Chett Boxiey
CPC分类号: B01D53/60 , B01D53/501 , B01D2251/604 , B01D2257/302 , B01D2257/404 , B01D2257/504 , C04B28/006 , Y02P40/165 , Y02W30/92 , Y10S106/01 , C04B18/08 , C04B22/064 , C04B22/085 , C04B22/10 , C04B22/14
摘要: A process for treating flue gas containing fly ash and carbon dioxide is disclosed. In the process, carbon dioxide and fly ash are contacted with an aqueous metal hydroxide solution to convert carbon dioxide into a metal carbonate, and wherein the metal carbonate and the metal hydroxide cause the fly ash to undergo a geopolymerization reaction and form a geopolymerized fly ash. The geopolymerized fly ash is recovered for disposal or for further use, such as a concrete additive.
摘要翻译: 公开了一种处理含有飞灰和二氧化碳的烟道气的方法。 在此过程中,二氧化碳和飞灰与金属氢氧化物水溶液接触,将二氧化碳转化成金属碳酸盐,其中金属碳酸盐和金属氢氧化物使飞灰进行地质聚合反应,形成地质聚合的粉煤灰 。 回收地质聚集的飞灰用于处理或进一步使用,例如混凝土添加剂。