发明授权
- 专利标题: Direct reduction process and apparatus
- 专利标题(中): 直接还原工艺和设备
-
申请号: US11569739申请日: 2005-05-20
-
公开(公告)号: US07608128B2公开(公告)日: 2009-10-27
- 发明人: Andreas Orth , Heinz Eichberger , Donald Keith Philp , Rod Dry
- 申请人: Andreas Orth , Heinz Eichberger , Donald Keith Philp , Jeantine Van Gemund, legal representative , Rod Dry
- 申请人地址: FI Espoo
- 专利权人: Outotec Oyj
- 当前专利权人: Outotec Oyj
- 当前专利权人地址: FI Espoo
- 代理机构: Smith-Hill & Bedell, P.C.
- 优先权: AU2004902899 20040531
- 国际申请: PCT/EP2005/005464 WO 20050520
- 国际公布: WO2005/116273 WO 20051208
- 主分类号: C21B13/14
- IPC分类号: C21B13/14
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.
公开/授权文献
- US20070256519A1 Direct Reduction Process and Apparatus 公开/授权日:2007-11-08
信息查询