公开(公告)号：US20070256519A1

公开(公告)日：2007-11-08

申请号：US11569739

申请日：2005-05-20

申请人： Andreas Orth ,  Heinz Eichberger ,  Donald Philp ,  Jeantine Van Gemund ,  Rod Dry

发明人： Andreas Orth ,  Heinz Eichberger ,  Donald Philp ,  Jeantine Van Gemund ,  Rod Dry

IPC分类号： C21B13/00

CPC分类号： C21B13/0033 ,  C21B13/14 ,  C22B5/14 ,  Y02P10/122 ,  Y02P10/126 ,  Y02P10/128 ,  Y02P10/136

摘要： A direct reduction process for a metalliferous material includes supplying a solid carbonaceous material and an oxygen-containing gas into a fluidized bed in a first vessel and generating heat by reactions between the oxygen-containing gas and the solid carbonaceous material and any other oxidizable solids and gases in the fluidized bed and discharging a hot off-gas stream containing entrained solids. The process also includes supplying the metalliferous material to a fluidized bed in a second vessel and supplying the hot off-gas stream containing entrained solids from the first vessel to the fluidized bed in the second vessel and partially reducing the metalliferous feed material in the solid state in the fluidized bed and discharging a product stream of partially reduced metalliferous material and an off-gas stream containing entrained solids.

摘要翻译： 用于含金属材料的直接还原方法包括将固体碳质材料和含氧气体供应到第一容器中的流化床中，并通过含氧气体和固体碳质材料和任何其它可氧化固体之间的反应产生热量，以及 流化床中的气体并排出含有夹带固体的热废气流。 该方法还包括将含金属材料供应到第二容器中的流化床，并将含有夹带的固体的热废气流从第一容器提供给第二容器中的流化床，并部分还原固态的含金属进料 在流化床中并排出部分还原的含金属材料的产物流和含有夹带固体的废气流。