公开(公告)号：US06235083B1

公开(公告)日：2001-05-22

申请号：US09221987

申请日：1998-12-29

申请人： Leopold Werner Kepplinger ,  Johann Wurm ,  Herbert Mizelli ,  Walter Rainer Kastner ,  Günther Brunnbauer

发明人： Leopold Werner Kepplinger ,  Johann Wurm ,  Herbert Mizelli ,  Walter Rainer Kastner ,  Günther Brunnbauer

IPC分类号： C21B1314

CPC分类号： C21B13/14 ,  Y02P10/136

摘要： A method for producing a hot CO- and H2-containing reducing gas utilized for the reduction of lumpy metal ore, in particular iron ore, which comprises forming the reducing gas in a gasification zone by the gasification of carbon carriers, in particular coal, taking place in the presence of a supply of oxygen and subsequently cooling the reducing gas down to a reducing-gas temperature favorable to the reduction process, wherein H2O and/or CO2 is added to a reducing gas which has been subjectged to a cooling operation that does not effect an addition of H2O/CO2 in order to prevent the Boudouard and heterogeneous water-gas reaction and a resultant heating of the reducing gas, wherein the reducing gas is converted to a reducing gas that is thermodynamically more stable at the reducing-gas temperature.

摘要翻译： 一种生产用于还原块状金属矿石，特别是铁矿石的热的含CO和H 2的还原气体的方法，其包括通过碳载体（特别是煤）的气化在气化区中形成还原气体， 在存在氧气的情况下放置，随后将还原气体冷却至有利于还原过程的还原气体温度，其中将H 2 O和/或CO 2加入到已经经受冷却操作的还原气体中 不影响加入H 2 O / CO 2，以防止Boudouard和异质水煤气反应和所得还原气体的加热，其中还原气体转化为在还原气体温度下在热力学上更稳定的还原气体 。

公开(公告)号：US06379420B1

公开(公告)日：2002-04-30

申请号：US09227056

申请日：1999-01-07

申请人： Leopold Werner Kepplinger ,  Johann Wurm ,  Herbert Mizelli ,  Walter Rainer Kastner ,  Günther Brunnbauer

发明人： Leopold Werner Kepplinger ,  Johann Wurm ,  Herbert Mizelli ,  Walter Rainer Kastner ,  Günther Brunnbauer

IPC分类号： C21B1314

CPC分类号： C21B13/14 ,  Y02P10/136

摘要： In a method for producing a hot CO- and H2-containing reducing gas serving for the reduction of fine-grained metal ore, in particular iron ore, the reducing gas is formed in a gasification zone by a gasification of carbon carriers, in particular coal, taking place under the supply of oxygen and subsequently is cooled down to a reducing-gas temperature favorable to the reduction process. In order to produce a thermodynamically more stable reducing gas, the reducing gas by the addition of H2O and/or CO2—in order to prevent the Boudouard and heterogeneous water-gas reaction and a resultant heating of the reducing gas—is converted to a reducing gas that is thermodynamically more stable at the reducing-gas temperature.

摘要翻译： 在用于还原细粒金属矿石，特别是铁矿石的热的含CO和H 2的还原气体的制造方法中，通过碳载体，特别是煤的气化，在气化区中形成还原气体 在氧的供给下进行，然后冷却至还原过程有利的还原气体温度。 为了产生热力学上更稳定的还原气体，通过加入H 2 O和/或CO 2来还原气体，以防止Boudouard和非均相水煤气反应以及所产生的还原气体的加热 - 被转化为还原气体 在还原气体温度下热力学更稳定的气体。