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1. 发明申请

WO2014006511A3 METHOD AND SYSTEM FOR OPERATING A BLAST FURNACE WITH TOP-GAS RECYCLE AND A FIRED TUBULAR HEATER 审中-公开
标题翻译：使用顶气回收和燃烧式管式加热器运行高炉的方法和系统
公开(公告)号：WO2014006511A3
公开(公告)日：2014-04-17
申请号：PCT/IB2013001974
申请日：2013-07-03
申请人： HYL TECHNOLOGIES SA DE CV
发明人： MARTINEZ-CONTRERAS JOSE JUAN
IPC分类号： C10K1/10 , C21B5/06 , F27B1/22 , F27B1/24 , F27D17/00
CPC分类号： C21B5/06 , C10K1/005 , C10K1/02 , C10K1/04 , C21B7/002 , C21B7/22 , C21B2100/282 , C21B2100/44 , C21B2100/64 , C21D1/34 , C21D1/52 , F27B1/22 , F27B1/24 , F27D17/002 , F27D17/004 , F27D17/008 , F27D2017/006 , Y02P10/122 , Y02P10/126 , Y02P10/212 , Y02P10/283
摘要： A blast furnace system is used wherein the coke rate is decreased by recycling upgraded top gas from the furnace back into its shaft section (which upgraded top gas is heated in a tubular heater prior to being recycled). The top gas, comprising CO, CO2 and H2, is withdrawn from the upper part of the blast furnace; cooled and cleaned of dust, water, and CO2 for increasing its reduction potential and is heated to a temperature above 850°C before being recycled thus defining a first gas flow path used during normal operation of the blast furnace. Uniquely, a second gas flow path for continued circulation of top gas selectively through the heater and a cooler during operation interruptions of the blast furnace allows time for gradual controlled cool down of the heater in a manner to avoid heat-shock damage to the tubular heater.
摘要翻译：使用鼓风炉系统，其中通过将升级的顶部气体从炉子回收回到其轴部分（其在升高的顶部气体在回收之前在管式加热器中加热）而使焦炭速率降低。包含CO，CO2和H2的顶部气体从高炉的上部排出; 冷却并清除灰尘，水和CO2以提高其还原电势，并且在再循环之前被加热到高于850℃的温度，从而限定在高炉的正常操作期间使用的第一气体流动路径。唯一地，在高炉操作中断期间，用于使顶部气体选择性地继续循环通过加热器和冷却器的第二气体流动路径允许时间以加热器的逐渐受控冷却的方式避免对管式加热器的热冲击损坏。

2. 发明申请

WO2014132130A3 DIRECT REDUCTION PROCESS WITH IMPROVED PRODUCT QUALITY AND PROCESS GAS EFFICIENCY 审中-公开
标题翻译：直接还原过程，具有改进的产品质量和工艺效率
公开(公告)号：WO2014132130A3
公开(公告)日：2014-11-20
申请号：PCT/IB2014000777
申请日：2014-02-27
申请人： HYL TECHNOLOGIES SA DE CV , DANIELI & CO OHG S P A
发明人： BECERRA-NOVOA JORGE OCTAVIO , MARTINIS ALESSANDRO
IPC分类号： C21B11/02 , C21B13/00 , C21B13/02
CPC分类号： C21B13/02 , C21B13/0033 , C21B13/004 , C21B13/0073 , C21B2100/22 , C21B2100/26 , C21B2100/282 , Y02P10/122 , Y02P10/126 , Y02P10/128 , Y02P10/136 , Y02P10/143
摘要： A direct reduction process producing DRI from iron oxide particles by reduction at a about 750 °C with a reducing gas mainly H2 and CO, that also includes CO2, H20, and methane, a the reduction reactor and the top gas effluent from the reduction reaction after cooling/scrubbing is split. The resulting first top gas portion with a first hydrocarbon-containing make-up gas passes through a catalytic reformer yielding an improved hot reducing gas first effluent. The second top gas portion passes through a CO2 removal unit and then with the second hydrocarbon-containing make-up gas passes through a heater yielding a hot CO2-lean recycle reducing gas second effluent. The first and second effluents are fed to the reducing zone of the reduction reactor as the reducing gas reactant. The flow rate of at least the second of the two make-up gases is regulated to control the carbon content of the DRI produced.
摘要翻译：一种直接还原方法，其中还原气体主要为还原气体，还有CO 2，H 2 O和甲烷，还原反应器和来自还原反应的顶部气体流出物，在约750℃下还原氧化铁颗粒，冷却/洗涤后分开。得到的具有第一含烃补充气体的第一顶部气体部分通过催化重整器，产生改进的热还原气体第一流出物。第二顶部气体部分通过二氧化碳除去单元，然后与第二含烃补充气体通过加热器，产生热的贫二氧化碳循环还原气体第二流出物。将第一和第二流出物作为还原气体反应物进料到还原反应器的还原区。调节至少两种补充气体中的第二种的流速以控制所产生的DRI的碳含量。

3. 发明申请

WO2007122509A3 METHOD AND APPARATUS FOR PRODUCING DIRECT REDUCED IRON 审中-公开
标题翻译：生产直接还原铁的方法和装置
公开(公告)号：WO2007122509A3
公开(公告)日：2008-04-17
申请号：PCT/IB2007001107
申请日：2007-04-23
申请人： HYL TECHNOLOGIES SA DE CV , ZENDEJAS-MARTINEZ EUGENIO
发明人： ZENDEJAS-MARTINEZ EUGENIO
IPC分类号： C21B13/00 , C21B13/02 , F27B1/16
CPC分类号： C21B13/02 , C21B13/0086 , C21B13/029 , C21B2100/22 , C21B2100/44 , Y02P10/122 , Y02P10/126 , Y02P10/128 , Y02P10/136 , Y02P10/143
摘要： A direct reduction process for producing direct reduced iron (DRI) in a reduction reactor having a reduction zone for reducing iron-oxides-containing particles, such as iron ore pellets, to DRI by reaction of said iron oxides with a high temperature reducing gas, and a cooling zone for lowering the temperature of the DRI produced in said reduction zone, wherein a stream of cooling gas, usually natural gas, is circulated through said cooling zone, a portion of said cooling gas is withdrawn from the cooling zone, cooled and cleaned in a gas cooler and a portion of the cooled gas is recycled to said reduction zone by means of an ejector utilizing the high-pressure natural gas make-up feed as the ejector's motive fluid. Using an ejector for recycling the cooling gas instead of using a mechanical compressor provides significant savings in electricity and in capital, operational and maintenance costs. A direct reduction plant having a DRI cooling zone which uses at least one ejector in recycling at least a portion of cooling gas to the cooling zone.
摘要翻译：在具有通过所述铁氧化物与高温还原气体的反应的具有还原区域的还原反应器中生产直接还原铁（DRI）的直接还原方法，其具有将含铁氧化物的颗粒如铁矿石颗粒还原成DRI，以及用于降低在所述还原区中产生的DRI的温度的冷却区，其中通过所述冷却区循环冷却气体（通常是天然气）的一部分，所述冷却气体的一部分从所述冷却区域排出，冷却并且在气体冷却器中清洁，并且通过使用高压天然气补充进料作为喷射器的运动流体的喷射器将一部分冷却的气体再循环到所述还原区。使用喷射器回收冷却气体而不是使用机械压缩机可大大节省电力以及资金，运营和维护成本。具有DRI冷却区的直接还原装置，其使用至少一个喷射器将至少一部分冷却气体再循环到冷却区。

4. 发明申请

WO2013093640A3 METHOD AND APPARATUS FOR PRODUCTION OF DIRECT REDUCED IRON (DRI) UTILIZING COKE OVEN GAS 审中-公开
标题翻译：直接还原铁（DRI）生产焦炉烤炉的方法和装置
公开(公告)号：WO2013093640A3
公开(公告)日：2013-12-27
申请号：PCT/IB2012003062
申请日：2012-12-21
申请人： HYL TECHNOLOGIES SA DE CV , DANIELI OFF MECC
发明人： MARTINIS ALESSANDRO , BECERRA-NOVOA JORGE-OCTAVIO , CONDOSTA MICHELE , ZENDEJAS-MARTINEZ EUGENIO
IPC分类号： C21B13/00 , C01B3/36 , C10B43/10 , C10G9/16 , C10K1/00 , C21B13/02 , F27D25/00
CPC分类号： C21B13/0073 , C01B2203/0227 , C01B2203/025 , C10G9/16 , C10G75/00 , C21B13/02 , C21B13/029 , C21B2100/66 , F27D25/00 , F27D25/008 , Y02P10/122 , Y02P10/126 , Y02P10/128 , Y02P10/136 , Y02P10/265 , Y02P10/283
摘要： Direct reduction process and plant for producing DRI comprising a reduction reactor and at least one reducing gas heater typically comprising a convective heating section and a radiant heating section for raising the reducing gas temperature to a level adequate for iron oxides reduction to metallic iron, typically above 850°C, wherein the reducing gas fed to the reduction reactor comprises a stream of reducing gas recycled from the reduction reactor and a make-up stream of coke oven gas containing carbon compounds which may form carbon deposits in the heating path of said heater, namely BTX and other complex carbon compounds. The heater is provided with means for feeding oxidizing agents, for example steam, steam and air and/or oxygen at predetermined heating tubes successively for eliminating the carbon deposits which may form inside the heating tubes of said heater without interrupting the operation of the plant. The make-up stream of cold COG can be combined with the recycled gas at a point in the gas heating path of the heater where the tubes have a skin wall temperature of at least 700°C, or when the mixture of recycled gas and COG is at a temperature above 700°C for minimizing clogging or fouling of heating equipment.
摘要翻译：直接还原方法和用于生产DRI的装置，包括还原反应器和至少一个还原气体加热器，通常包括对流加热段和辐射加热段，用于将还原气体温度升高至铁氧化物还原为金属铁的水平，通常在其中进料到还原反应器的还原气体包括从还原反应器再循环的还原气流，以及含有可能在所述加热器的加热路径中形成碳沉积物的碳化合物的焦化炉气的补充流，即BTX等复合碳化合物。加热器设有用于连续地在预定加热管上供给氧化剂，例如蒸汽，蒸汽和空气和/或氧气的装置，以消除可能在所述加热器的加热管内部形成的碳沉积物而不中断工厂的操作。冷COG的补充流可以在加热器的气体加热路径中的一点处与循环气体组合，其中管的表面壁温度至少为700℃，或者当再循环气体和COG的混合物处于700℃以上的温度，以减少加热设备的堵塞或结垢。

5. 发明申请

WO2011012964A8 METHOD FOR PRODUCING DIRECT REDUCED IRON WITH LIMITED CO2 EMISSIONS 审中-公开
标题翻译：用于生产具有二氧化碳排放的直接还原铁的方法
公开(公告)号：WO2011012964A8
公开(公告)日：2012-03-22
申请号：PCT/IB2010001813
申请日：2010-07-21
申请人： HYL TECHNOLOGIES SA DE CV , DANIELI OFF MECC , DUARTE-ESCARENO PABLO ENRIQUE , ZENDEJAS-MARTINEZ EUGENIO , TAVANO ANDREA , MARTINIS ALESSANDRO , GASPERA OMAR DELLA
发明人： DUARTE-ESCARENO PABLO ENRIQUE , ZENDEJAS-MARTINEZ EUGENIO , TAVANO ANDREA , MARTINIS ALESSANDRO , GASPERA OMAR DELLA
IPC分类号： C21B13/02 , B01D53/04 , B01D53/14 , C10K1/00
CPC分类号： C21B13/02 , B01D53/047 , B01D53/1475 , B01D53/228 , B01D53/75 , B01D2257/502 , B01D2257/702 , C21B13/029 , C21B2100/02 , C21B2100/04 , C21B2100/22 , C21B2100/28 , C21B2100/282 , Y02C10/06 , Y02C10/08 , Y02C10/10 , Y02C20/20 , Y02P10/122 , Y02P10/126 , Y02P10/128 , Y02P10/136 , Y02P10/143 , Y02P10/216
摘要： A method and apparatus for producing direct reduced iron (DRI), also known as sponge iron, by means of direct contact of iron oxides with a stream of recycled and regenerated hot reducing gases containing hydrogen and carbon monoxide. The invention provides a way for decreasing the uncontained emission of CO2 to the atmosphere produced by combustion of carbon-bearing fuels in the reducing gas heater by substituting, at least partially, a gas stream mainly composed of hydrogen in lieu of the usual carbon-bearing fuels. The hydrogen fuel stream, depleted of CO2 by means of a physical gas separation unit (which can be a PSA/VPSA type adsorption unit, a gas separation membrane unit or combination of PSA/VPSA unit and a gas separation membrane unit) is derived from at least a portion of a stream of regenerated reducing gases being recycled to the reduction reactor. The derived hydrogen fuel stream is combusted in the reducing gas heater and/or other thermal equipment in the reduction plant, thus decreasing the CO2 emissions directly to the atmosphere.
摘要翻译：通过铁氧化物与含有氢气和一氧化碳的再循环和再生的热还原气体流的直接接触来生产也称为海绵铁的直接还原铁（DRI）的方法和装置。本发明提供了一种方法，用于通过至少部分替代主要由氢气组成的气流代替通常的含碳轴承，从而减少在还原气体加热器中由含碳燃料燃烧产生的大气中的二氧化碳排放量的减少燃料。通过物理气体分离单元（其可以是PSA / VPSA型吸附单元，气体分离膜单元或PSA / VPSA单元的组合和气体分离膜单元）耗尽CO 2的氢燃料流源自再生还原气体流的至少一部分再循环到还原反应器中。衍生的氢燃料流在还原气体加热器和/或还原装置中的其他热设备中燃烧，从而将CO 2排放直接减少到大气中。

6. 发明申请

WO2009144521A8 STEELMAKING FACILITY COMPRISING A DIRECT REDUCTION PLANT AND AN ELECTRIC-ARC FURNACE 审中-公开
标题翻译：包括直接还原厂和电弧炉的炼钢厂
公开(公告)号：WO2009144521A8
公开(公告)日：2010-03-11
申请号：PCT/IB2008000939
申请日：2008-04-17
申请人： HYL TECHNOLOGIES SA DE CV , DANIELI OFF MECC , GARZA-RODRIGUEZ GILBERTO , TAVANO ANDREA , BECERRA-NOVOA JORGE OCTAVIO
发明人： GARZA-RODRIGUEZ GILBERTO , TAVANO ANDREA , BECERRA-NOVOA JORGE OCTAVIO
IPC分类号： H01L29/16
CPC分类号： C21B13/143 , C21B13/0086 , C21B13/14 , C21C5/527 , C21C5/5294 , F27B3/18 , F27D3/10 , Y02P10/136 , Y02P10/216
摘要： A steelmaking plant method and apparatus which includes a pressurized direct reduction reactor for continuous production of hot direct reduced iron (ORI); feeding such DRI to a batch melting furnace or to a standby cooler. The furnace is selectively charged through a diverter valve by a pneumatic transport system with the hot DRI being entrained in a motive carrier gas fed via a first conduit into a receiving bin. A pressurized charge of the DRI accumulated in such disengaging buffer bin is periodically fed via a second conduit down into low dosing/depressurization bin which in turn depressurizes the DRI and feeds a batch of DRI down into the furnace. Upon sensing the capacity of the buffer portion of the receiving bin being filled, the DRI! is then pneumatically diverted from the reactor to the cooler, such as during shut down of the furnace for maintenance or otherwise.
摘要翻译：一种炼钢设备方法和装置，包括用于连续生产热直接还原铁（ORI）的加压直接还原反应器; 将这种DRI馈送到批量熔炉或备用冷却器。炉子通过气动输送系统通过分流阀选择性地充电，其中热DRI被夹带在通过第一导管供给到容纳箱中的动力载气中。累积在这种分离缓冲箱中的DRI的加压装料经由第二导管周期性地进料到低剂量/减压箱中，该低剂量/减压箱又使DRI减压并将一批DRI向下送入炉中。一旦感测到正在填充的接收箱的缓冲部分的容量，DRI！然后从反应器气动地转移到冷却器，例如在炉子关闭期间进行维护或以其他方式。

7. 发明申请

WO2013110969A3 BLAST FURNACE WITH TOP-GAS RECYCLE 审中-公开
标题翻译：具有顶部气体回收的高炉
公开(公告)号：WO2013110969A3
公开(公告)日：2014-07-31
申请号：PCT/IB2012003116
申请日：2012-12-27
申请人： HYL TECHNOLOGIES SA DE CV
发明人： GARZA-DAVILA JOSÉ-CARLOS , BECERRA-NOVOA JORGE-OCTAVIO , DUARTE-ESCARENO PABLO-ENRIQUE
IPC分类号： F27B1/10 , C10K1/00 , C10K1/02 , C10K3/04 , C21B5/00 , C21B5/06 , F27B1/18 , F27B1/24 , F27D17/00
CPC分类号： C21B5/06 , B01D2257/504 , B01D2258/025 , C10K1/005 , C10K1/02 , C10K1/04 , C10K3/04 , C21B5/00 , C21B7/002 , C21B7/16 , C21B7/22 , C21B2100/02 , C21B2100/04 , C21B2100/24 , C21B2100/282 , C21B2300/02 , F27B1/10 , F27B1/18 , F27B1/24 , F27D17/001 , F27D17/008 , Y02P10/122 , Y02P10/126 , Y02P10/128 , Y02P10/216 , Y02P10/283
摘要： A blast furnace where coke Is combusted with oxygen, Instead of air, and where a top gas comprising CO, CO2, H2, and without excess nitrogen is withdrawn from the upper part of the blast furnace, cleaned of dust, the H2/CO volume ratio adjusted to between 1.5 to 4.0 in a water shift reactor, water and CO2 are removed (increasing its reduction potential), heated to a temperature above 850°C, and fed back to the blast furnace above where iron starts melting (thereby Increasing the amount of metallic iron reaching the dead-man zone and decreasing the amount of coke used for reduction). Also carbon deposit problems caused by heating the CO-containing recycled gas are minimized by on-line cleaning of the heater tubes with steam without significantly affecting the reduction potential of the recycled reducing gas.
摘要翻译：焦炭与氧燃烧而不是空气的高炉，其中包括CO，CO 2，H 2和没有过量氮的顶部气体从高炉的上部排出，清除了灰尘，H2 / CO体积比例在水移动反应器中调节至1.5至4.0，除去水和CO2（增加其还原电位），加热至高于850℃的温度，并反馈回铁开始熔化的高炉，从而增加金属铁量达到死人区，减少用于还原的焦炭量）。此外，通过加热含CO循环气体引起的碳沉积问题也通过用蒸汽在线清洗加热器管而减少，而不显着影响回收还原气体的还原电位。

8. 发明申请

WO2011012964A2 METHOD FOR PRODUCING DIRECT REDUCED IRON WITH LIMITED CO2 EMISSIONS 审中-公开
标题翻译：用有限的CO 2排放生产直接还原铁的方法
公开(公告)号：WO2011012964A2
公开(公告)日：2011-02-03
申请号：PCT/IB2010001813
申请日：2010-07-21
申请人： HYL TECHNOLOGIES SA DE CV , DANIELI & C OFFICCINE MECCANICHE S P A , DUARTE-ESCARENO PABLO ENRIQUE , ZENDEJAS-MATINEZ EUGENIO , TAVANO ANDREA , MARTINIS ALESSANDRO , GASPERA OMAR DELLA
发明人： DUARTE-ESCARENO PABLO ENRIQUE , ZENDEJAS-MATINEZ EUGENIO , TAVANO ANDREA , MARTINIS ALESSANDRO , GASPERA OMAR DELLA
IPC分类号： C21B13/02
CPC分类号： C21B13/02 , B01D53/047 , B01D53/1475 , B01D53/228 , B01D53/75 , B01D2257/502 , B01D2257/702 , C21B13/029 , C21B2100/02 , C21B2100/04 , C21B2100/22 , C21B2100/28 , C21B2100/282 , Y02C10/06 , Y02C10/08 , Y02C10/10 , Y02C20/20 , Y02P10/122 , Y02P10/126 , Y02P10/128 , Y02P10/136 , Y02P10/143 , Y02P10/216
摘要： A method and apparatus for producing direct reduced iron (DRI), also known as sponge iron, by means of direct contact of iron oxides with a stream of recycled and regenerated hot reducing gases containing hydrogen and carbon monoxide. The invention provides a way for decreasing the uncontained emission of CO2 to the atmosphere produced by combustion of carbon-bearing fuels in the reducing gas heater by substituting, at least partially, a gas stream mainly composed of hydrogen in lieu of the usual carbon-bearing fuels. The hydrogen fuel stream, depleted of CO2 by means of a physical gas separation unit (which can be a PSA/VPSA type adsorption unit, a gas separation membrane unit or combination of PSA/VPSA unit and a gas separation membrane unit) is derived from at least a portion of a stream of regenerated reducing gases being recycled to the reduction reactor. The derived hydrogen fuel stream is combusted in the reducing gas heater and/or other thermal equipment in the reduction plant, thus decreasing the CO2 emissions directly to the atmosphere.
摘要翻译：通过氧化铁与含有氢气和一氧化碳的再循环和再生热还原气流的直接接触来生产直接还原铁（DRI）（也称为海绵铁）的方法和设备。本发明提供了一种方法，用于通过至少部分地替代主要由氢气组成的气流代替通常的含碳气体来减少由还原气体加热器中含碳燃料燃烧所产生的大气中的CO 2的非容积排放燃料。通过物理气体分离单元（其可以是PSA / VPSA型吸附单元，气体分离膜单元或PSA / VPSA单元和气体分离膜单元的组合）耗尽了CO 2的氢燃料流得自再生的还原气流的至少一部分被再循环到还原反应器。衍生的氢燃料流在还原设备中的还原气体加热器和/或其它热设备中燃烧，从而将CO 2排放物直接减少到大气中。

9. 发明申请

WO2007096784A3 METHOD AND APPARATUS FOR THE DIRECT REDUCTION OF IRON OXIDES TO METALLIC IRON 审中-公开
标题翻译：将铁氧化物直接还原成金属铁的方法和装置
公开(公告)号：WO2007096784A3
公开(公告)日：2009-04-23
申请号：PCT/IB2007001681
申请日：2007-01-05
申请人： HYL TECHNOLOGIES SA DE CV , ZENDEJAS-MARTINEZ EUGENIO , DUARTE-ESCARENO PABLO-ENRIQUE
发明人： ZENDEJAS-MARTINEZ EUGENIO , DUARTE-ESCARENO PABLO-ENRIQUE
IPC分类号： C21B7/00 , C21C5/00
CPC分类号： C22B5/12 , C21B13/0073 , C21B13/02 , C21B13/029 , C21B2100/22 , C21B2100/64 , Y02P10/122 , Y02P10/126 , Y02P10/128 , Y02P10/136 , Y02P10/143
摘要： A process for reducing iron ore particles in a moving bed reduction reactor comprising an upper reduction zone and a lower discharge zone, wherein the coke oven gas, preferably forming all the make-up for the reducing gas circulating through and reacting in said reduction zone, is first fed to said discharge (cooling) zone and thereafter said coke oven gas, conditioned by the DRI in the lower zone, is withdrawn from the reactor and fed preferably into the recycled reducing gas for injection into the reduction zone of the reactor. Heavy hydrocarbons and other components of coke oven gas which may otherwise cause fouling, corrosion, or deposits in the direct reduction plant are removed from coke oven gas by catalytic and/or adsorptive action of the DRI present in said lower zone, before being externally transferred to the reduction zone of the reduction reactor.
摘要翻译：一种用于还原移动床还原反应器中的铁矿石颗粒的方法，包括上部还原区和下部排出区，其中焦炉气体优选地形成循环通过并在所述还原区中反应的还原气体的所有补充，首先进料到所述排出（冷却）区，然后将由下部区域中的DRI调节的所述焦炉气体从反应器中排出并优选进料到再循环的还原气体中，以将其注入到反应器的还原区中。在外部转移之前，可能通过在所述下部区域中存在的DRI的催化和/或吸附作用从焦炉气体中除去可能导致直接还原装置中结垢，腐蚀或沉积的焦炉气体的重质烃和其它组分到还原反应器的还原区。

10. 发明申请

WO2009037587A2 METHOD AND APPARATUS FOR THE DIRECT REDUCTION OF IRON ORES UTILIZING GAS FROM A MELTER-GASIFIER 审中-公开
标题翻译：利用来自熔化气体的气体直接还原铁矿石的方法和设备
公开(公告)号：WO2009037587A2
公开(公告)日：2009-03-26
申请号：PCT/IB2008003455
申请日：2008-08-08
申请人： HYL TECHNOLOGIES SA DE CV , ZENDEJAS-MARTINEZ EUGENIO , DUARTE-ESCARENO PABLO-ENRIQUE
发明人： ZENDEJAS-MARTINEZ EUGENIO , DUARTE-ESCARENO PABLO-ENRIQUE
IPC分类号： C21B13/00 , C21B13/14
CPC分类号： C21B13/0073 , C21B13/002 , C21B13/14 , C21B2100/24 , C21B2100/282 , C21B2100/44 , C21B2100/60 , C21B2100/62 , C21B2100/66 , Y02P10/122 , Y02P10/126 , Y02P10/136
摘要： A method and apparatus for producing a metallized product (DRI) in a downstream direct reduction reactor utilizing the reducing gas effluent either from an upstream reduction reactor associated with a melter-gasifier or from the melter-gasifier itself (in the absence of such upstream reduction reactor), wherein said reducing gas is reacted with water in a shifter and then CO2 is removed from a combined stream of said shifted gas with recycled gas effluent from said downstream reactor in an adsorption CO2 removal unit. Separation of CO2 produces a lean gas stream and a CO2 laden gas stream. The CO2 lean gas stream is utilized for producing DRI in said downstream reduction reactor and the CO2 laden gas stream is used as fuel in a boiler for producing steam which serves then at least to react with carbon monoxide in said shifter to produce hydrogen and preferably also for power generation with resulting overall increased plant efficiency.
摘要翻译：一种用于在下游直接还原反应器中生产金属化产物（DRI）的方法和装置，该反应器利用来自与熔融气化炉相关联的上游还原反应器或来自熔融气化炉本身的还原气体流出物（在没有这种上游还原其中所述还原气体在换档器中与水反应，然后在吸附CO 2移除单元中从所述转化气体与来自所述下游反应器的再循环气体流出物的组合流中除去CO 2。二氧化碳的分离产生贫气流和二氧化碳气流。贫CO 2气流用于在所述下游还原反应器中产生DRI，并且所述负载CO 2的气流用作锅炉中的燃料以产生蒸汽，所述蒸汽然后至少与所述变换器中的一氧化碳反应以产生氢气，并且优选还用于发电，从而提高整体工厂效率。

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