公开(公告)号：US4897179A

公开(公告)日：1990-01-30

申请号：US931988

申请日：1986-11-25

申请人： Kenji Mori ,  Katsuhiko Tsuzura ,  Mamoru Onoda ,  Ryo Watanabe ,  Takehiko Ashie ,  Yoshifumi Kameoka ,  Katsufumi Shinohara ,  Atsuhiko Nakanishi

发明人： Kenji Mori ,  Katsuhiko Tsuzura ,  Mamoru Onoda ,  Ryo Watanabe ,  Takehiko Ashie ,  Yoshifumi Kameoka ,  Katsufumi Shinohara ,  Atsuhiko Nakanishi

IPC分类号： C10G9/36 ,  C01B3/02 ,  C01B3/22 ,  C01B3/32 ,  C10G9/00 ,  C10G9/32 ,  C21B13/00

CPC分类号： C10G9/00

摘要： A method of producing reduced iron and light oil from iron ore and heavy oil which comprises a thermal cracking step of subjecting heavy oil to thermal cracking while retaining iron ore particles in a fluidized state to produce light oil and simultaneously to deposit coke as by-product on the surface of the iron ore particles; a gasification step of putting the coke-deposited ore in contact with an oxidizing gas including steam and oxygen in a fluidized state to react the coke with the gas thereby to produce a reducing gas containing hydrogen and carbon monoxide and of heating the coke-deposited ore upward of a reduction temperature of iron ore by partial oxidization of the coke; and a reduction step of reducing the coke-deposited iron ore in a fluidized state by the reducing gas to produce reduced iron. When the gasification step is performed by an oxidizing gas containing a majority of steam and up to 15 vol. %, based on the steam, of oxygen at 800.degree.-1000.degree. C. under a pressure of 0-10 kg/cm.sup.2 G, a reducing gas containing high-concentration hydrogen gas is obtained.

摘要翻译： 一种从铁矿石和重油生产还原铁和轻油的方法，包括热裂解步骤，使重油热裂解，同时保持处于流化状态的铁矿石颗粒以产生轻质油，同时沉积焦炭作为副产物 在铁矿石颗粒表面; 将焦炭沉积矿石与包含蒸汽和氧气的氧化气体以流化状态接触的气化步骤使焦炭与气体反应，从而产生含有氢和一氧化碳的还原气体，并加热焦炭沉积的矿石 通过焦炭的部分氧化使铁矿石的还原温度向上; 以及通过还原气体还原处于流化状态的焦炭沉积铁矿石以还原铁的还原步骤。 当气化步骤由含大部分蒸汽和高达15体积％的氧化气体进行时， ％，基于蒸汽，氧气在800-1000℃，0-10kg / cm2G的压力下，得到含有高浓度氢气的还原气体。