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    Method and apparatus for carbonizing and desulfurizing coal-iron compacts
    2.
    发明授权
    Method and apparatus for carbonizing and desulfurizing coal-iron compacts 失效
    煤铁压实碳化脱硫的方法和装置

    公开(公告)号：US3908970A

    公开(公告)日：1975-09-30

    申请号：US38701773

    申请日：1973-08-09

    申请人： DRAVO CORP

    发明人： VLNATY JOSEPH

    IPC分类号： C10B53/08 ,  C10L9/00 ,  C22B1/24 ,  F27B1/08

    CPC分类号： C10B53/08 ,  C10L9/00 ,  C22B1/2413

    摘要： Method and apparatus for preparing compacts of an iron and carbonized coal having a low sulfur content. Coal and iron oxide or metallic iron are formed into compacts, heated, and contacted within an enclosed reactor with a gas containing elemental hydrogen. Hydrogen sulfide is formed by reaction of the hydrogen with sulfur in the compacts and off-gasses are formed from this reaction and from carbonization of the coal. The hydrogen sulfide is separated from the off gases and a portion of the off gases returned to the enclosed reactor. Desulfurized compacts are discharged from the reactor and contain carbonized coal and iron metal, the compacts being low in sulfur content and especially useful in metallurgical processing.

    摘要翻译： 具有低硫含量的铁和碳化煤的压块的方法和装置。 煤和氧化铁或金属铁被形成压块，加热并在封闭的反应器内与含有元素氢的气体接触。 通过氢气与压缩物中的硫反应形成硫化氢，并且由该反应和煤的碳化形成脱气。 硫化氢与废气分离，一部分废气返回到封闭的反应器中。 脱硫压块从反应器排出并含有碳化煤和铁金属，该成型体硫含量低，特别适用于冶金加工。

    Desulfurization of coal
    3.
    发明授权
    Desulfurization of coal 失效
    煤的脱硫

    公开(公告)号：US3886048A

    公开(公告)日：1975-05-27

    申请号：US38933873

    申请日：1973-08-17

    申请人： DRAVO CORP

    发明人： SELMECZI JOSEPH G ,  VLNATY JOSEPH

    IPC分类号： C10B57/08 ,  C10L9/02 ,  C10B57/00 ,  C10B57/04

    CPC分类号： C10B57/08 ,  C10L9/02

    摘要： A method for carbonizing and desulfurizing carbonaceous materials by heating the carbonaceous material admixed with iron in a reducing atmosphere between 1,200* and 1,700*F and, subsequently, subjecting the resulting char to an oxidizing atmosphere at a temperature between 800*-1100*F. The resulting product is a carbonized, desulfurized fuel which has a sulfur content of 0.6 to 0.7% by weight.

    摘要翻译： 一种在1200〜1700°F的还原气氛中加热与铁混合的碳质材料，然后在800〜-100°F的温度下对所得到的炭进行氧化气氛的碳质材料的碳化和脱硫的方法。 所得产物是硫化物含量为0.6〜0.7重量％的碳化脱硫燃料。

    Apparatus for direct reduction of iron oxide compacts
    4.
    发明授权
    Apparatus for direct reduction of iron oxide compacts 失效
    直接还原氧化铁精炼设备

    公开(公告)号：US3635456A

    公开(公告)日：1972-01-18

    申请号：US3635456D

    申请日：1970-04-29

    申请人： DRAVO CORP

    发明人： ANTHES JOHN A ,  VLNATY JOSEPH

    IPC分类号： C21B13/00 ,  F27D17/00

    CPC分类号： C21B13/0086 ,  C21B13/00 ,  C21B13/0046 ,  C21B13/008 ,  Y02P10/136 ,  Y02P10/143

    摘要： Apparatus for the direct reduction of iron oxides in compact form by preheating iron oxide compacts and enveloping them in hot inert particulate solids at the top of a columnar reactor then passing the mixture downwardly through the reactor countercurrent to an upward flow of natural gas that is introduced into the reactor bottom. Contact of the natural gas and the compacts with the hot solids results in reformation of the natural gas by reaction with carbon dioxide and the production of hydrogen and carbon monoxide, which hydrogen and carbon monoxide reduce the iron oxide of the compacts. Hot gases from the reactor are passed upwardly through a preheater for incoming iron oxide pellets and are then cooled, cleaned, and a portion returned to the bottom of the reactor. The reduced heated compacts are separated from the inert solids at the bottom of the reactor and are passed countercurrent to the natural gas that is being conducted to the reactor to heat it prior to introduction of the gas into the reactor bottom.

    摘要翻译： 用于通过预热氧化铁压块直接还原氧化铁的装置，并将其包围在柱状反应器顶部的热惰性颗粒固体中，然后将混合物向下通过反应器逆向引入向上的天然气流 进入反应器底部。 天然气和压块与热固体的接触导致天然气与二氧化碳的反应和氢气和一氧化碳的产生，这种氢和一氧化碳减少了压块的氧化铁。 来自反应器的热气体向上通过用于进入的氧化铁颗粒的预热器，然后冷却，清洁，并且一部分返回到反应器的底部。 将还原的加热的压块与反应器底部的惰性固体分离，并与导入反应器的天然气逆流通过，以在将气体引入反应器底部之前进行加热。