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    • 4. 发明专利
    • Desulfurization of coal material
    • 煤材脱硫
    • JPS6169891A
    • 1986-04-10
    • JP19133184
    • 1984-09-12
    • Kobe Steel Ltd
    • MORI KENJIONODA MAMORUWATANABE MAKOTOSHINOHARA KATSUFUMIASHINAGA TAKEHIKO
    • C10L9/02B01J23/74C10J3/02C10J3/16C10L9/06
    • Y02P20/52
    • PURPOSE: To remove sulfur contained in coal material and improve its quality, by mixing iron oxide into a reaction system of a fluidized bed gasification of coal material.
      CONSTITUTION: A sulfur-contg. coal material in powder or granule (coal, coke, etc.) is placed in a processing vessel together with an iron oxide (e.g. iron ore as iron oxide source) and water vapor is blown into the system, while temp. and pressure are kept at 850W1,000°C and 1W10kg/cm
      2 G, respectively, so that H
      2 O/H
      2 +H
      2 O ratio in cracked gas may be 0.4 or higher by volume. The mixing of iron oxide promotes shift reaction of the formula during gasification reaction to a marked extent and reaction proceeds with decreased CO content of produced gas, marked increase of H
      2 ratio and increase of H
      2 S concentration. The control of amounts of water vapor and oxygen blown into the system prevents lowering of desulfurization effect due to formation of FeS as a result of reaction of reduced iron with H
      2 S caused by too high an H
      2 content. Thus the sulfur content of coal material is reduced to about 2% or lower.
      COPYRIGHT: (C)1986,JPO&Japio
    • 目的:通过将氧化铁混合到煤材流化床气化反应系统中,除去煤中含硫物质,提高其质量。 构成:硫磺 将粉末或颗粒(煤,焦炭等)中的煤料与氧化铁(例如铁矿石作为氧化铁源)一起放置在处理容器中,并将水蒸汽吹入系统中。 压力分别保持在850-1000℃和1-10kg / cm 2,使裂解气中的H 2 O / H 2 + H 2 O的体积比可以为0.4或更高。 氧化铁的混合促进了气化反应过程中配方的转化反应,反应发生在产生的气体的CO含量降低,H2比值显着增加和H2S浓度增加。 控制吹入系统中的水蒸气和氧气的量可防止由于由于H 2含量过高而导致的还原铁与H 2 S的反应而导致FeS形成的脱硫效果降低。 因此,煤材的硫含量降低到约2%以下。
    • 10. 发明专利
    • MANUFACTURE OF REDUCED IRON
    • JPS5834113A
    • 1983-02-28
    • JP13178281
    • 1981-08-21
    • KOBE STEEL LTD
    • ARIKAWA MASAYASUMORI KENJINARITA KIICHIKANEKO DENTAROUKAMIMURA NOBUOMIYAZAKI KAZUHIRO
    • C21B13/00
    • PURPOSE:To expand width of utilized hydrocarbon, to manufacture reduced gas at a low cost and easily, and to realize high temperature reduction, by placing in series a spare reducing furnace of a fluid layer system, a reducing furnace and a gas reforming furnace, and making iron ore grains and hydrocarbon flow through in order. CONSTITUTION:Iron ore grains are heated by a heater 1, and after that, are fed to a spare reducing furnace 2, and are brought into contact with hydrocarbon preheated to such an extent as it is not decomposed, by a preheater 5, and circulating gas containing oxidizing gas such as CO2, H2O, etc., which has passed through a heater 21 from a line 12. Subsequently, a part of the hydrocarbon is decomposed and becomes reduced gas, and a part by-produces C and sticks onto the surface of iron ore grains, and the iron ore grains are prereduced. The C stuck grains are fed to a reducing furnace 3, contacts with high temperature reduced gas from a line 16, and becomes reduced iron. Decomposed gas of the furnace 2 is made to pass through a purifying device 18, also a part of reduced iron of the furnace 3 is fed to a gas reforming furnace 4, and its decomposed gas is reformed to reduced gas mainly consisting of CO and H2. This gas is made to pass through a heater 22, also reduced iron is fed to the furnace 3 through a line 5, and its waste gas is fed to the furnace 2.