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1. 发明授权

US5439504A Direct-reduction process for directly reducing particulate iron-oxide-containing material 失效
标题翻译：直接还原工艺可直接还原含氧化铁颗粒物质
公开(公告)号：US5439504A
公开(公告)日：1995-08-08
申请号：US336390
申请日：1994-11-09
申请人： Karl Czermak , Konstantin Milionis , Johannes L. Schenk , Siegfried Zeller
发明人： Karl Czermak , Konstantin Milionis , Johannes L. Schenk , Siegfried Zeller
IPC分类号： C21B5/00 , C21B7/00 , C21B13/00 , C21B13/06 , C22B5/14 , C22B13/02
CPC分类号： C22B13/02 , C21B13/0033 , C22B5/14 , Y02P10/122 , Y02P10/126 , Y02P10/128 , Y02P10/136
摘要： In a process for the direct reduction of particulate iron-oxide-containing material by the fluidized bed method, reformed gas is mixed with top gas forming in the direct reduction of the iron-oxide-containing material and is fed to a fluidized-bed reduction zone as a reducing gas. To lower the energy demand and utilizing the potential of the reducing gas, both the top gas and the reformed gas are subjected to CO.sub.2 scrubbing and the reducing gas formed by mixing top gas with reformed gas is adjusted to an H.sub.2 content ranging between 45 and 75%, preferably between 50 and 65%, and to a CO content ranging between 10 and 20%.
摘要翻译：在通过流化床法直接还原含氧化铁颗粒物质的方法中，将直接还原含铁氧化物材料的重整气与顶部气体形成混合，并进料到流化床还原区作为还原气体。为了降低能量需求并利用还原气体的潜力，将顶部气体和重整气体进行二氧化碳洗涤，并将顶部气体与重整气体混合形成的还原气体调节至45至75之间的H 2含量％，优选在50和65％之间，CO含量在10和20％之间。

2. 发明授权

US5554206A Method of charging ore 失效
标题翻译：矿石装填方法
公开(公告)号：US5554206A
公开(公告)日：1996-09-10
申请号：US398562
申请日：1995-03-03
申请人： Karl Czermak , Konstantin Milionis , Gero Tessmer , Roy H. Whipp, Jr.
发明人： Karl Czermak , Konstantin Milionis , Gero Tessmer , Roy H. Whipp, Jr.
IPC分类号： C21B13/08 , B65G53/12 , B65G53/22 , C21B13/00 , C21B13/06 , F27D3/18
CPC分类号： C21B13/00 , Y02P10/122 , Y02P10/136
摘要： A method of and apparatus for charging fine-grained ore into a reactor pressure vessel through which process gas flows. The heated ore at first is introduced into a conveying pressure vessel, is pressurized within the same by compressed gas and subsequently is conveyed into the reactor pressure vessel through a conveying duct by aid of the compressed gas. In order to ensure favorable utilization of the reactor pressure vessel under uniform stress and to safeguard troublefree progression of reduction while directly charging the ore, a portion of the ore is introduced into at least one further conveying pressure vessel and is pressurized within the same also by compressed gas. Charging of the ore into the reactor pressure vessel is effected continuously by alternately feeding once from the one conveying pressure vessel and subsequently from the other conveying pressure vessel. The compressed gas is taken from the process gas as a quantitative or as a component portion of the process gas and is fed back to the same along with the ore.
摘要翻译：将细粒矿石装入反应堆压力容器中的方法和装置，工艺气体通过该压力容器流动。首先将加热的矿石引入输送压力容器中，通过压缩气体在其内加压，随后通过压缩气体通过输送管道输送到反应堆压力容器中。为了确保反应堆压力容器在均匀应力下的有利利用，并且在直接对矿石进行充电的同时保证无故障地进行还原，一部分矿石被引入到至少一个另外的输送压力容器中，并且通过压缩气体。通过从一个输送压力容器和随后的另一个输送压力容器交替地进料一次，连续地进料矿石进入反应堆压力容器。压缩气体作为工艺气体的定量或组分部分从工艺气体中取出，并与矿石一起反馈到其中。

3. 发明授权

US5871560A Process and plant for the direct reduction of iron-oxide-containing materials 失效
标题翻译：用于直接还原含氧化铁材料的工艺和设备
公开(公告)号：US5871560A
公开(公告)日：1999-02-16
申请号：US765342
申请日：1997-01-15
申请人： Roland Fluch , Karl Czermak , Gunter Peer , Roy Hubert Whipp, Jr.
发明人： Roland Fluch , Karl Czermak , Gunter Peer , Roy Hubert Whipp, Jr.
IPC分类号： C21B13/00
CPC分类号： C21B13/0073 , Y02P10/122 , Y02P10/128 , Y02P10/136 , Y02P10/143
摘要： A direct reduction process is disclosed for iron oxide-containing materials. Synthesis gas is mixed with top gas produced during direct reduction of the iron oxide-containing materials and is used as reduction gas for directly reducing and heating the iron oxide-containing materials up to reduction temperature. In order to set the H.sub.2 S content at a predetermined value by a relatively simple technique and with a relatively simple equipment, at least part of the sulphur contained in the iron oxide-containing materials as H.sub.2 S produced during heating or direct reduction is added to the reduction gas together with the top gas.
摘要翻译： PCT No.PCT / AT95 / 00121 Sec。 371日期1997年1月15日 102（e）日期1997年1月15日PCT提交1995年6月20日PCT公布。公开号WO96 / 00302 日期1996年1月4日公开了含氧化铁材料的直接还原工艺。将合成气与直接还原含氧化铁材料时产生的顶部气体混合，并用作直接还原和加热含氧化铁材料直到还原温度的还原气体。为了通过相对简单的技术将H2S含量设定在预定值，并且使用相对简单的设备，在加热或直接还原期间产生的含氧化铁的材料中所含的硫的至少一部分被加入还原气体与顶部气体一起。

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