AR058946A1 - Metodo para la reduccion directa de oxidos de hierro a hierro metlico utilizando gas de coquerias o similares - Google Patents

Metodo para la reduccion directa de oxidos de hierro a hierro metlico utilizando gas de coquerias o similares

Info

Publication number
AR058946A1
AR058946A1 ARP070100072A AR058946A1 AR 058946 A1 AR058946 A1 AR 058946A1 AR P070100072 A ARP070100072 A AR P070100072A AR 058946 A1 AR058946 A1 AR 058946A1
Authority
AR
Argentina
Prior art keywords
reduction
zone
gas
gas stream
reactor
Prior art date
Application number
Other languages
English (en)
Original Assignee
Hyl Technologies Sa De Cv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hyl Technologies Sa De Cv filed Critical Hyl Technologies Sa De Cv
Publication of AR058946A1 publication Critical patent/AR058946A1/es

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/12—Dry methods smelting of sulfides or formation of mattes by gases
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0073—Selection or treatment of the reducing gases
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces
    • C21B13/029—Introducing coolant gas in the shaft furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases
    • C21B2100/22—Increasing the gas reduction potential of recycled exhaust gases by reforming
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
    • C21B2100/64—Controlling the physical properties of the gas, e.g. pressure or temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/122—Reduction of greenhouse gas [GHG] emissions by capturing or storing CO2
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]

Abstract

Un proceso para la reduccion de partículas de mineral de hierro en un reactor de reduccion de lecho movil que comprende una zona de reduccion superior y una zona inferior de descarga, en el cual el gas de horno de coque forma preferentemente la totalidad de la reposicion de gas reductor que circula a través de dicha zona de reduccion y reacciona en la misma es alimentada en primer lugar a dicha zona de descarga (enfriamiento) y luego se retira del reactor dicho gas de horno de coque, acondicionado por el DRI en la zona inferior y se lo alimenta al gas reductor reciclado para inyectarlo a la zona de reduccion del reactor. Se eliminan los hidrocarburos pesados y otros componentes del gas de horno de coque que, de lo contrario, pueden causar obstruccion, corrosion o depositos en la planta de reduccion directa del gas de horno de coque mediante la accion catalítica y/o absorbente del DRI presente en dicha zona inferior, antes de ser transferida por medios exteriores a la zona de reduccion del reactor de reduccion. Reivindicacion 1: Un método para la produccion de hierro de reduccion directa (DRI) por medio de la reduccion de partículas que contienen oxidos de hierro a hierro metálico (DRI) en un reactor de reduccion que comprende una zona de reduccion y una zona inferior de enfriamiento y/o descarga, mediante el contacto de dichas partículas con una corriente de gas a alta temperatura que comprende hidrogeno y monoxido de carbono en dicha zona de reduccion, y donde las partículas reducidas descienden a través de dicha zona inferior, donde dicho método se caracteriza por la mejora que comprende: hacer circular de una primera corriente de gas a través de dicha zona inferior, extraer una porcion de dicha primera corriente de gas de dicha zona inferior como una segunda corriente de gas, alimentar una tercera corriente de gas conteniendo metano a dicha zona inferior de dicho reactor de manera que fluya hacia dicha zona inferior y por lo menos una parte de dicha tercera corriente de gas forme parte de la primera corriente de gas; y transferir externamente por lo menos una primera porcion de dicha segunda corriente de gas de nuevo a dicha zona de reduccion, donde la velocidad de flujo de dicha tercera corriente de gas es mayor que la velocidad de flujo de dicha porcion transferida de dicha segunda corriente de gas y donde la diferencia de dichas velocidades de flujo es de entre aproximadamente 50 metros cubicos normales y aproximadamente 300 metros cubicos normales por tonelada métrica de DRI producido en dicho reactor de reduccion.
ARP070100072 2006-01-06 2007-01-08 Metodo para la reduccion directa de oxidos de hierro a hierro metlico utilizando gas de coquerias o similares AR058946A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75768806P 2006-01-06 2006-01-06

Publications (1)

Publication Number Publication Date
AR058946A1 true AR058946A1 (es) 2008-03-05

Family

ID=38250603

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP070100072 AR058946A1 (es) 2006-01-06 2007-01-08 Metodo para la reduccion directa de oxidos de hierro a hierro metlico utilizando gas de coquerias o similares

Country Status (9)

Country Link
US (1) US8377168B2 (es)
EP (1) EP1984530B1 (es)
CN (1) CN1995402B (es)
AR (1) AR058946A1 (es)
BR (1) BRPI0706367B1 (es)
MX (1) MX2008008812A (es)
RU (1) RU2439165C2 (es)
UA (1) UA91109C2 (es)
WO (1) WO2007096784A2 (es)

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US7938882B2 (en) * 2007-04-02 2011-05-10 Midrex Technologies, Inc. Method and system for the supply of hot direct reduced iron for multiple uses
JP5696967B2 (ja) * 2009-07-31 2015-04-08 エイチワイエル テクノロジーズ、エス．エー． デ シー．ヴイ Ｃｏ２の排出を規制した直接還元鉄の製造方法
US8496730B2 (en) * 2010-05-14 2013-07-30 Midrex Technologies, Inc. System and method for reducing iron oxide to metallic iron using coke oven gas and oxygen steelmaking furnace gas
US9127326B2 (en) 2010-05-14 2015-09-08 Midrex Technologies, Inc. System and method for reducing iron oxide to metallic iron using natural gas
US9028585B2 (en) 2010-05-14 2015-05-12 Midrex Technologies, Inc. System and method for reducing iron oxide to metallic iron using coke oven gas and oxygen steelmaking furnace gas
US8690986B2 (en) 2010-09-03 2014-04-08 Forest Vue Research, Llc Method for simultaneously producing iron, coke, and power
WO2012030413A2 (en) * 2010-09-03 2012-03-08 Forest Vue Research Llc Method for simultaneously producing iron, coke, and power
AT510955B1 (de) * 2011-05-30 2012-08-15 Siemens Vai Metals Tech Gmbh Reduktion von metalloxiden unter verwendung eines sowohl kohlenwasserstoff als auch wasserstoff enthaltenden gasstromes
CN102338766A (zh) * 2011-08-02 2012-02-01 湘潭大学 一种用于双酚a检测的电化学传感器
CN102311821A (zh) * 2011-08-20 2012-01-11 太原理工大学 一种焦炉气磁化赤铁矿生产天然气的方法
IN2014CN02080A (es) * 2011-08-20 2015-05-29 Hyl Technologies Sa De Cv
JP2015507088A (ja) * 2011-12-21 2015-03-05 エイチワイエル テクノロジーズ、エス．エー． デ シー．ヴイ コークス炉ガスを利用する直接還元鉄（ｄｒｉ）製造の方法および装置
CN102605132A (zh) * 2012-01-13 2012-07-25 中冶赛迪工程技术股份有限公司 一种利用焦炉煤气生产直接还原铁的方法
JP2014227588A (ja) * 2013-05-24 2014-12-08 新日鉄住金エンジニアリング株式会社 直接還元鉄の製造装置、及び直接還元鉄の製造方法
UA117374C2 (uk) * 2013-07-31 2018-07-25 Мідрекс Текнолоджиз, Інк. Відновлення оксиду заліза до металевого заліза із застосуванням коксового газу та газу зі сталеплавильної печі з подачею кисню
UA114676C2 (uk) * 2013-07-31 2017-07-10 Мідрекс Текнолоджиз, Інк. Відновлення оксиду заліза до металевого заліза з застосуванням природного газу
US9938594B2 (en) * 2014-07-15 2018-04-10 Midrex Technologies, Inc. Methods and systems for producing direct reduced iron and steel mill fuel gas using coke oven gas and basic oxygen furnace gas
WO2016118474A1 (en) 2015-01-20 2016-07-28 Midrex Technologies, Inc. Methods and systems for producing high carbon content metallic iron using coke over gas
WO2016199291A1 (ja) * 2015-06-12 2016-12-15 株式会社神戸製鋼所 還元鉄の製造方法
EP3255157A1 (de) * 2016-06-09 2017-12-13 Primetals Technologies Austria GmbH Verfahren zur direktreduktion mit trockener ventgasentstaubung
US11021766B2 (en) 2016-11-03 2021-06-01 Midrex Technologies, Inc. Direct reduction with coal gasification and coke oven gas
EP3453773A1 (de) * 2017-09-06 2019-03-13 Primetals Technologies Austria GmbH Reduktionsgasgewinnung aus gesättigtem topgas
JP6917266B2 (ja) * 2017-10-04 2021-08-11 三菱重工エンジニアリング株式会社 ガス燃焼処理装置及び燃焼処理方法、ガス燃焼処理装置を備えたガス精製システム
CN109433277A (zh) * 2018-11-25 2019-03-08 中海油天津化工研究设计院有限公司 一种可连续操作的催化剂还原装置
DE102021112208A1 (de) * 2021-05-11 2022-11-17 Thyssenkrupp Steel Europe Ag Verfahren zur Direktreduktion von Eisenerz
CN113883851B (zh) * 2021-08-31 2022-09-13 内蒙古万众炜业科技环保股份公司 一种兰炭节能生产用干燥装置及其工艺

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Also Published As

Publication number Publication date
BRPI0706367B1 (pt) 2014-07-08
EP1984530A4 (en) 2017-04-26
RU2008132328A (ru) 2010-02-20
WO2007096784A3 (en) 2009-04-23
CN1995402A (zh) 2007-07-11
MX2008008812A (es) 2008-11-18
EP1984530A2 (en) 2008-10-29
US20090211401A1 (en) 2009-08-27
WO2007096784A2 (en) 2007-08-30
BRPI0706367A2 (pt) 2011-03-22
RU2439165C2 (ru) 2012-01-10
US8377168B2 (en) 2013-02-19
UA91109C2 (ru) 2010-06-25
EP1984530B1 (en) 2019-07-17
CN1995402B (zh) 2011-11-16

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