公开(公告)号：WO2022248915A1

公开(公告)日：2022-12-01

申请号：PCT/IB2021/054583

申请日：2021-05-26

Applicant: ARCELORMITTAL

Inventor： SALAME, Sarah ,  BARROS LORENZO, José ,  ANDRADE, Marcelo ,  LU, Dennis ,  CARRIER, Odile ,  REYES RODRIGUEZ, Jon ,  BOULANOV, Dmitri ,  TSVIK, George

IPC: C21B13/00 ,  C21B13/02 ,  C07C1/12

Abstract: A method for manufacturing direct reduced iron wherein oxidized iron is reduced in a direct reduction furnace by a reducing gas, said direct reduction furnace comprising a reduction zone, a transition zone and a cooling zone, a carbon-bearing liquid being injected below the reduction zone.

公开(公告)号：WO2022254278A1

公开(公告)日：2022-12-08

申请号：PCT/IB2022/054679

申请日：2022-05-19

Applicant: ARCELORMITTAL

Inventor： SALAME, Sarah ,  CARRIER, Odile ,  BARROS LORENZO, José ,  REYES RODRIGUEZ, Jon ,  ANDRADE, Marcelo ,  BOULANOV, Dmitri ,  LU, Dennis ,  TSVIK, George

IPC: C21B13/00 ,  C21B13/02

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 C02 recovery step during which it is divided into two streams, a C02-rich stream and a C02-poor stream. The C02-rich stream is subjected to an alkanol production step to produce an alkanol product.

公开(公告)号：WO2022254235A1

公开(公告)日：2022-12-08

申请号：PCT/IB2021/054755

申请日：2021-05-31

Applicant: ARCELORMITTAL

Inventor： TSVIK, George ,  BOULANOV, Dmitri ,  REYES RODRIGUEZ, Jon ,  CARRIER, Odile ,  SALAME, Sarah ,  BARROS LORENZO, José ,  ANDRADE, Marcelo ,  LU, Dennis

IPC: C21B13/00

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 hydrocarbon production step to produce an hydrocarbon product.

公开(公告)号：WO2022254234A1

公开(公告)日：2022-12-08

申请号：PCT/IB2021/054751

申请日：2021-05-31

Applicant: ARCELORMITTAL

Inventor： SALAME, Sarah ,  CARRIER, Odile ,  BARROS LORENZO, José ,  REYES RODRIGUEZ, Jon ,  ANDRADE, Marcelo ,  BOULANOV, Dmitri ,  LU, Dennis ,  TSVIK, George

IPC: C21B13/00 ,  C21B13/02

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.

公开(公告)号：WO2022248987A1

公开(公告)日：2022-12-01

申请号：PCT/IB2022/054664

申请日：2022-05-19

Applicant: ARCELORMITTAL

Inventor： SALAME, Sarah ,  CARRIER, Odile ,  BARROS LORENZO, José ,  REYES RODRIGUEZ, Jon ,  ANDRADE, Marcelo ,  BOULANOV, Dmitri ,  LU, Dennis ,  TSVIK, George

IPC: C21B13/00 ,  C21B13/02 ,  C07C1/12

Abstract: A method for manufacturing direct reduced iron wherein oxidized iron is reduced in a direct reduction furnace by a reducing gas, said direct reduction furnace comprising a reduction zone, a transition zone and a cooling zone, a carbon-bearing liquid being injected below the reduction zone.

公开(公告)号：WO2022243726A1

公开(公告)日：2022-11-24

申请号：PCT/IB2021/054259

申请日：2021-05-18

Applicant: ARCELORMITTAL

Inventor： TSVIK, George ,  BOULANOV, Dmitri ,  REYES RODRIGUEZ, Jon ,  CARRIER, Odile ,  SALAME, Sarah ,  BARROS LORENZO, José ,  ANDRADE, Marcelo ,  LU, Dennis

IPC: C21B13/00 ,  C07C1/12 ,  C25B1/02

Abstract: A method for manufacturing direct reduced iron wherein oxidized iron is reduced in a direct reduction furnace by a reducing gas, said oxidized iron being first mixed with biochar to form a solid compound and said solid compound is charged into said direct reduction furnace.

公开(公告)号：WO2022243723A1

公开(公告)日：2022-11-24

申请号：PCT/IB2021/054243

申请日：2021-05-18

Applicant: ARCELORMITTAL

Inventor： TSVIK, George ,  BOULANOV, Dmitri ,  REYES RODRIGUEZ, Jon ,  CARRIER, Odile ,  SALAME, Sarah ,  BARROS LORENZO, José ,  ANDRADE, Marcelo ,  LU, Dennis

IPC: C21B13/00 ,  C21B7/00 ,  C21C5/38 ,  C21C5/28

Abstract: The invention is related to a method for operating a network of plants comprising a blast furnace, a steelmaking furnace producing steel and a steelmaking gas, a direct reduction furnace wherein oxidized iron is charged to be reduced by a reducing gas to produce direct reduced iron and a top reduction gas and at least one burner able to provide heat to the reducing gas before its injection into the direct reduction furnace.

公开(公告)号：WO2022248914A1

公开(公告)日：2022-12-01

申请号：PCT/IB2021/054581

申请日：2021-05-26

Applicant: ARCELORMITTAL

Inventor： TSVIK, George ,  BOULANOV, Dmitri ,  REYES RODRIGUEZ, Jon ,  CARRIER, Odile ,  SALAME, Sarah ,  BARROS LORENZO, José ,  ANDRADE, Marcelo ,  LU, Dennis

IPC: C21B7/00 ,  C21B13/00 ,  C21B13/02 ,  B01D53/14

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.

公开(公告)号：WO2022243725A1

公开(公告)日：2022-11-24

申请号：PCT/IB2021/054256

申请日：2021-05-18

Applicant: ARCELORMITTAL

Inventor： TSVIK, George ,  BOULANOV, Dmitri ,  REYES RODRIGUEZ, Jon ,  CARRIER, Odile ,  SALAME, Sarah ,  BARROS LORENZO, José ,  ANDRADE, Marcelo ,  LU, Dennis

IPC: C21B13/00 ,  C21B13/02

Abstract: A method for manufacturing Direct Reduced Iron wherein iron ore is reduced in a DRI shaft by a reducing gas comprising hydrogen obtained by thermal cracking of methane inside a plasma torch, the reducing gas further comprising 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.

公开(公告)号：WO2022243724A1

公开(公告)日：2022-11-24

申请号：PCT/IB2021/054252

申请日：2021-05-18

Applicant: ARCELORMITTAL

Inventor： TSVIK, George ,  BOULANOV, Dmitri ,  REYES RODRIGUEZ, Jon ,  CARRIER, Odile ,  SALAME, Sarah ,  BARROS LORENZO, José ,  ANDRADE, Marcelo ,  LU, Dennis

IPC: C21B13/00 ,  C21B13/02

Abstract: A method for manufacturing Direct Reduced Iron wherein iron ore is reduced in a DRI shaft by a reducing gas comprising 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.