公开(公告)号：US20240279756A1

公开(公告)日：2024-08-22

申请号：US18289263

申请日：2022-05-02

申请人： NEXTCHEM TECH S.P.A.

发明人： Luca Eugenio Riccardo Basini ,  Gaetano Iaquaniello ,  Annarita Salladini

IPC分类号： C21B5/00 ,  C21B5/06 ,  C21B7/00

CPC分类号： C21B5/001 ,  C21B5/06 ,  C21B7/002 ,  C21B2005/005 ,  C21B2100/22

摘要： A BF iron-ore reduction process for the production of iron and/or iron-carbon compounds with low environmental impact is described, in which a synthesis gas produced from a hydrocarbon stream with a short contact time-catalytic partial oxidation (SCT-CPO) process integrated with the iron-ore reduction process is also used in the BF.

公开(公告)号：US20240247327A1

公开(公告)日：2024-07-25

申请号：US18421103

申请日：2024-01-24

申请人： 8 Rivers Capital, LLC

发明人： Rodney John Allam

IPC分类号： C21B7/00

CPC分类号： C21B7/002 ,  C21B2100/282 ,  C21B2100/62 ,  C21B2100/66

摘要： The present disclosure relates to systems and methods for the production of molten metals direct oxidative combustion of one or more solid fuels. The systems and methods may be combined with coal gasifiers and related components for reducing overall energy requirements as well as external fuel sources, e.g., through the use of endogenously-generated hydrogen. In beneficial aspects, components of the carbonaceous exhaust produced in accordance with the disclosed systems and methods, such as carbon dioxide (CO2), may be isolated using carbon capture and sequestration (CCS) for reducing associated greenhouse gas emissions.

公开(公告)号：US20230008316A1

公开(公告)日：2023-01-12

申请号：US17781781

申请日：2020-11-26

申请人： PAUL WURTH S.A.

发明人： Klaus Peter KINZEL ,  Gilles KASS

IPC分类号： C21B7/00 ,  F27B1/08 ,  C01B3/34

摘要： A method for converting a blast furnace plant for synthesis gas utilization includes:
constructing a syngas stove, and constructing a syngas supply system for connecting the syngas stove to a blast furnace;
connecting a first syngas stove to the top-gas supply system, the cold-blast and hot-blast supply systems and operating the first syngas stove for hot blast generation;
disconnecting a first original stove from the top-gas supply system, the cold-blast and hot-blast supply systems; and
converting the first original stove to adapt it for producing syngas. The method includes
connecting the first original stove to the top-gas supply system;
disconnecting the first syngas stove from the cold-blast and hot-blast supply systems, connecting the first original stove and first syngas stove to a gas-combination supply system; and
operating the first original stove and first syngas stove to produce and then supply syngas to the blast furnace via the syngas supply system.

公开(公告)号：US20210238700A1

公开(公告)日：2021-08-05

申请号：US15734745

申请日：2019-06-03

申请人： thyssenkrupp Industrial Solutions AG ,  thyssenkrupp AG

发明人： Stefan GEHRMANN ,  Nils TENHUMBERG

IPC分类号： C21B5/06 ,  C21B7/00 ,  C21C5/38

摘要： A plant complex for producing steel, having a blast furnace for producing pig iron; a converter steel works for producing crude steel; a gas pipeline system for gases that occur in the production of pig iron and/or the production of crude steel; a chemical plant and/or a biotechnology plant which are/is connected to the gas pipeline system, wherein the plant complex additionally includes a biogas plant which is connected to the gas pipeline system.

公开(公告)号：US20200318207A1

公开(公告)日：2020-10-08

申请号：US16767014

申请日：2018-12-06

申请人： PAUL WURTH S.A.

发明人： Patrick HUTMACHER ,  Stefan SCHONS ,  Charles STEICHEN ,  Michel HOUBART

IPC分类号： C21B13/02 ,  C21B7/00 ,  C21B7/02 ,  F27B1/20 ,  F27D3/00

摘要： A charging system for a shaft smelt reduction furnace includes a frame structure for mounting on a top charge opening of a shaft smelt reduction vessel; a center shaft arrangement supported by the frame structure and for removing off-gas gases from the furnace and to introduce granular charge materials to form a stack of materials in the furnace. The center shaft arrangement includes a center hood for off-gas extraction; a pair of first and second feed channels for first and second materials. The center hood includes a pair of facing off-gas panels defining an off-gas channel. The partition walls include lower portions that extend towards each other below the center hood to define a center feed passage, whereby material descending through the first feed channels may accumulate on lower portions according to the angle of repose of the material, permitting self-adjustment of the first material stock-line in the shaft arrangement.

公开(公告)号：US10697030B2

公开(公告)日：2020-06-30

申请号：US15102418

申请日：2014-12-11

申请人： ThyssenKrupp AG

发明人： Reinhold Achatz ,  Jens Wagner ,  Markus Oles ,  Peter Schmöle ,  Ralph Kleinschmidt ,  Bärbel Kolbe ,  Matthias Patrick Krüger ,  Christoph Meißner

IPC分类号： C21B5/06 ,  C21B7/00 ,  C21C5/38 ,  C01C1/04 ,  C07C29/00 ,  C12P7/06 ,  C12P7/16 ,  C12P7/30 ,  C21C5/28 ,  C25B1/04 ,  F01D15/10

摘要： The invention relates to a plant complex for steel production comprising a blast furnace for producing pig iron, a converter steel mill for producing crude steel, a gas-conducting system for gases that occur in the production of pig iron and/or in the production of crude steel, and a power-generating plant for electricity generation. The power-generating plant is operated with a gas that comprises at least a partial amount of the blast-furnace top gas that occurs in the production of pig iron and/or a partial amount of the converter gas. According to the invention, a chemical or biotechnological plant is provided and connected to the gas-conducting system and arranged in parallel with the power-generating plant with respect to the gas supply. Externally obtained electricity and power-generating plant electricity are used to cover the electricity demand of the plant complex.

公开(公告)号：US10526670B2

公开(公告)日：2020-01-07

申请号：US14955105

申请日：2015-12-01

申请人： CCP TECHNOLOGY GMBH

发明人： Olaf Kuhl

IPC分类号： C21B5/06 ,  C01B32/40 ,  C21B7/00 ,  F27B1/10 ,  F27D17/00

摘要： The present blast furnace and method for operating a blast furnace are able to reduce CO2 production and the amount of applied additives and heating material. The method for metal production of metal ores comprising the following steps: reducing a metal ore, particularly a metal oxide, and thereby producing furnace gas containing CO2 in a blast furnace shaft; discharging the furnace gas from the blast furnace shaft; directing at least a portion of the furnace gas into a CO2 converter and reducing the CO2 in the furnace gas into CO; directing at least a portion of the CO from the CO2 converter into the blast furnace shaft. The method produces CO as a gaseous reduction agent which may be easily introduced into the blast furnace shaft. Further, a blast furnace for metal production by reducing a metal ore designed for operating according to the method is described.

公开(公告)号：US10518216B2

公开(公告)日：2019-12-31

申请号：US15772739

申请日：2016-11-02

申请人： DANIELI CORUS B.V.

发明人： Wouter Bernd Ewalts ,  Pieter Dirk Klut

IPC分类号： B01D53/12 ,  B01D53/40 ,  B01D53/83 ,  C10K1/02 ,  C10K1/32 ,  C21B7/00 ,  C21C5/40 ,  F27D17/00 ,  F27B1/10 ,  F27B3/10

摘要： A process and a device for treating a flow of furnace gas with a pressure of more than 1 bar flowing through a channel. A powder agent, such as a powder comprising alkali reagents, such as lime, and/or absorbents, such as activated coal, is injected under an overpressure into the furnace gas flow via an injector which is positioned centrally within the channel. The powder agent may be fluidized. The pressure for injecting the powder may be adjusted by controlling the volume of fluidization gas vented via a venting outlet.

公开(公告)号：US10287643B2

公开(公告)日：2019-05-14

申请号：US15039444

申请日：2014-11-27

申请人： CCP Technology GmbH

发明人： Olaf Kuhl

IPC分类号： C21B5/06 ,  C21B5/00 ,  H01M8/22 ,  B01D53/84 ,  C12M1/02 ,  C12P7/08 ,  B01D53/90 ,  B01D53/86 ,  C21B7/00 ,  C12M1/00 ,  B01D53/62 ,  H01M8/0612 ,  C12P7/06

摘要： A process for processing metal ore includes: reducing a metal ore, particularly a metallic oxide, in a blast furnace shaft; producing furnace gas containing CO2, in the blast furnace shaft; discharging the furnace gas from the blast furnace shaft; directing at least a portion of the furnace gas directly or indirectly into a CO2-converter; and converting the CO2 contained in the furnace gas into an aerosol consisting of a carrier gas and C-particles in the CO2-converter in the presence of a stoichiometric surplus of C; directing at least a first portion of the aerosol from the CO2-converter into the blast furnace shaft; and introducing H2O into the blast furnace shaft. By virtue of the reaction C+H2O→CO2+2H, nascent hydrogen is produced in the blast furnace which causes rapid reduction of the metal ore. The speed of reduction of the metal ore is thus increased, and it is possible to increase either the throughput capacity of the blast furnace or to reduce the size of the blast furnace. An aerosol in the form of a fluid is easily introducible into the blast furnace shaft.

公开(公告)号：US10155195B2

公开(公告)日：2018-12-18

申请号：US15509900

申请日：2015-09-24

申请人： Primetals Technologies Austria GmbH

发明人： Gareth Kaps

IPC分类号： B01D19/04 ,  B01D45/00 ,  B01D53/78 ,  B01J8/00 ,  C01B3/00 ,  C30B25/14 ,  B01D47/06 ,  B01D47/10 ,  C21B5/00 ,  C21B5/06 ,  C21B7/00 ,  C21B7/22

摘要： A gas scrubber cone condition monitoring system has a sealed gas scrubber cone (9) moveably mounted in a gas pipe (1), a collar (5) fixedly mounted radially outward of the cone in the gas pipe and a pressure tap (12) into the sealed cone. The pressure tap is coupled to a condition monitor (17, 18) via an input line (16). An output line (14) from the condition monitor is coupled to a gas pipe (15), downstream of the sealed cone. The condition monitor includes at least one of a pressure gauge and a gas flow meter.