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公开(公告)号：US20240254575A1
公开(公告)日：2024-08-01
申请号：US18290551
申请日：2022-05-19
Applicant: ArcelorMittal
Inventor： Sarah SALAME , Odile CARRIER , Jose BARROS LORENZO , Jon REYES RODRIGUEZ , Marcelo ANDRADE , Dmitri BOULANOV , Dennis LU , George TSVIK
CPC classification number: C21B13/008 , C21B13/0073 , C21B13/02 , C21B2100/22 , C21B2100/26 , C21B2100/282
Abstract: A method for manufacturing direct reduced iron wherein iron ore is reduced in a direct reduction furnace by a reducing gas, the reducing gas exiting the furnace through the top as a top reduction gas. The top reduction gas is captured and at least partly subjected to a CO2 recovery step during which it is divided into two streams, a CO2-rich stream and a CO2-poor stream. The CO2-rich stream is subjected to an alkanol production step to produce an alkanol product.
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Patent Agency Ranking
公开(公告)号：US20240240275A1
公开(公告)日：2024-07-18
申请号：US18559905
申请日：2021-05-18
Applicant: ArcelorMittal
Inventor： George TSVIK , Dmitri BOULANOV , Jon REYES RODRIGUEZ , Odile CARRIER , Sarah SALAME , José BARROS LORENZO , Marcelo ANDRADE , Dennis LU
CPC classification number: C21B13/0073 , C21B13/02 , C21B2100/26 , C21B2100/44
Abstract: A method for manufacturing Direct Reduced Iron wherein iron ore is reduced in a DRI shaft by a reducing gas including hydrogen obtained by extraction from coke oven gas through a hydrogen separation unit, the remaining part of such coke oven gas being at least partly injected in the transition section of said DRI shaft to set the carbon amount of said Direct Reduced Iron from 0.5 to 3 wt. % and a DRI manufacturing equipment including a DRI shaft (1) and a hydrogen separation unit (5), wherein said hydrogen separation unit (5) inlet is connected to a coke oven gas supply (6) and includes a first outlet connected to the DRI shaft to inject hydrogen separated from said coke oven gas and a second outlet connected to the transition section of said DRI shaft (1) to inject at least part of the remaining part of such coke oven gas.
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公开(公告)号：US20240263260A1
公开(公告)日：2024-08-08
申请号：US18290078
申请日：2022-05-19
Applicant: ArcelorMittal
Inventor： Sarah SALAME , Odile CARRIER , Jose BARROS LORENZO , Jon REYES RODRIGUEZ , Marcelo ANDRADE , Dmitri BOULANOV , Dennis LU , George TSVIK
CPC classification number: C21B13/0073 , C21B13/029 , C21B2100/282 , C25B1/02 , C25B15/081
Abstract: A method for manufacturing direct reduced iron wherein oxidized iron is reduced in a direct reduction furnace by a reducing gas, the direct reduction furnace including a reduction zone, a transition zone and a cooling zone, a carbon-bearing liquid being injected below the reduction zone.
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公开(公告)号：US20240263259A1
公开(公告)日：2024-08-08
申请号：US18559901
申请日：2021-05-26
Applicant: ArcelorMittal
Inventor： George TSVIK , Dmitri BOULANOV , Jon REYES RODRIGUEZ , Odile CARRIER , Sarah SALAME , José BARROS LORENZO , Marcelo ANDRADE , Dennis LU
CPC classification number: C21B7/002 , C21B13/0073 , C21B2100/22 , C21B2100/26 , C21B2100/80
Abstract: A method of operating a network of plants comprising a blast furnace, a direct reduction furnace, a CO2 conversion unit wherein blast furnace top gas is subjected to a CO2 conversion step to produce a liquid carbon product which is injected into the direct reduction furnace.
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公开(公告)号：US20240254576A1
公开(公告)日：2024-08-01
申请号：US18559909
申请日：2021-05-18
Applicant: ArcelorMittal
Inventor： George TSVIK , Dmitri BOULANOV , Jon REYES RODRIGUEZ , Odile CARRIER , Sarah SALAME , José BARROS LORENZO , Marcelo ANDRADE , Dennis LU
CPC classification number: C21B13/0086 , C21B13/0066 , C21B13/0073 , C25B15/081 , C21B2100/26 , C21B2100/282 , C25B1/04
Abstract: A method for manufacturing direct reduced iron wherein oxidized iron is reduced in a direct reduction furnace by a reducing gas, the oxidized iron being first mixed with biochar to form a solid compound and the solid compound is charged into the direct reduction furnace.
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公开(公告)号：US20240240276A1
公开(公告)日：2024-07-18
申请号：US18559908
申请日：2021-05-18
Applicant: ArcelorMittal
Inventor： George TSVIK , Dmitri BOULANOV , Jon REYES RODRIGUEZ , Odile CARRIER , Sarah SALAME , José BARROS LORENZO , Marcelo ANDRADE , Dennis LU
CPC classification number: C21B13/02 , C21B13/0073 , F27B1/10 , F27D17/008 , C21B2100/26 , C21B2100/44
Abstract: A method for manufacturing Direct Reduced Iron wherein iron ore is reduced in a DRI shaft by a reducing gas including hydrogen obtained by thermal cracking of methane inside a plasma torch, the reducing gas further including top gas coming from the DRI shaft and a DRI manufacturing equipment including a DRI shaft (1) and a plasma torch (40), wherein the plasma torch is connected on one side to a methane supply (41) and, on the other side, to the DRI shaft (1), the DRI shaft being provided with a recycling loop allowing to inject its top gas back in the DRI shaft.
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