DE102010049639A1 - Method for operating smelter, particularly steel mill, involves feeding exhaust gases from blast furnace or exhaust gases in metal refining processes either directly or after gas scrubber into closed aquatic biomass - Google Patents

Method for operating smelter, particularly steel mill, involves feeding exhaust gases from blast furnace or exhaust gases in metal refining processes either directly or after gas scrubber into closed aquatic biomass Download PDF

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DE102010049639A1
DE102010049639A1 DE102010049639A DE102010049639A DE102010049639A1 DE 102010049639 A1 DE102010049639 A1 DE 102010049639A1 DE 102010049639 A DE102010049639 A DE 102010049639A DE 102010049639 A DE102010049639 A DE 102010049639A DE 102010049639 A1 DE102010049639 A1 DE 102010049639A1
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exhaust gases
blast furnace
directly
aquatic biomass
operating
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wird später genannt werden Erfinder
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M21/00—Bioreactors or fermenters specially adapted for specific uses
    • C12M21/02—Photobioreactors
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M21/00—Bioreactors or fermenters specially adapted for specific uses
    • C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M43/00—Combinations of bioreactors or fermenters with other apparatus
    • C12M43/04—Bioreactors or fermenters combined with combustion devices or plants, e.g. for carbon dioxide removal
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/06—Making pig-iron in the blast furnace using top gas in the blast furnace process
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/004—Systems for reclaiming waste heat
    • 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
    • Y02P10/25—Process efficiency

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Zoology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Wood Science & Technology (AREA)
  • Genetics & Genomics (AREA)
  • General Engineering & Computer Science (AREA)
  • Biotechnology (AREA)
  • Sustainable Development (AREA)
  • Biochemistry (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Microbiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • General Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Treating Waste Gases (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

The method involves feeding the exhaust gases from the blast furnace or the exhaust gases in metal refining processes either directly or after a gas scrubber into a closed aquatic biomass containing a hermetically lockable bioreactor or in a hermetically lockable greenhouse for growth-accelerated metabolization of carbon dioxide in the aquatic biomass.

Description

Die Erfindung betrifft ein Verfahren zum Betrieb eines Stahlwerkes gemäß Oberbegriff des Patentanspruches 1.The invention relates to a method for operating a steel plant according to the preamble of claim 1.

Hüttenberiebe wie Stahlwerke oder Aluminiumwerke haben zum Einen einen hohen Energiebedarf und zum Anderen erzeugen diese große Mengen an CO2, welches ein klimaschädliches Gas ist.Metallurgists such as steel mills or aluminum plants, on the one hand, have a high energy requirement and, on the other hand, they generate large amounts of CO2, which is a climate-damaging gas.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der gattungsgemäßen Art dahingehend zu verbesseren, dass zum einen die hohen Mengen anfallendes CO2 effektiv zu binden und ggfs neue Energieträger daraus zu schaffen.The invention has for its object to improve a method of the generic type to the effect that on the one hand effectively bind the high amounts of CO2 incurred and, if necessary, to create new sources of energy.

Die gestellte Aufgabe wird bei einem Verfahren der gattungsgemäßen Art dahingehend gelöst, dass dass die Abgase aus dem Hochofen (Gichtgas) oder die Abgase in Metallveredlungsprozessen entweder direkt oder nach einem Gaswäscher in einen geschlossenen, aquatische Biomasse enthaltenden hermetisch abschliessbaren Bioreaktor oder in ein hermetisch abschließbares Gewächshaus eingespeist wird zur wuchsbeschleunigten Verstoffwechselung von CO2 in aquatische Biomasse, die wiederum zur Biogaserzeugung herangezogen werden, welches seinerseits wiederum zumindest teilweise als Energieträger dem Metallerzeugungsprozess zugespeist wird.The object is achieved in a method of the generic type to the effect that the exhaust gases from the blast furnace (top gas) or the exhaust gases in metal finishing processes either directly or after a gas scrubber in a closed, aquatic biomass-containing hermetically sealed bioreactor or in a hermetically sealed greenhouse is fed to the growth-accelerated metabolism of CO 2 in aquatic biomass, which in turn are used for biogas production, which in turn is at least partially fed as an energy source to the metal-forming process.

Weitere vorteilhafte Ausgestaltungen sind in den abhängigen Ansprüchen angegeben.Further advantageous embodiments are specified in the dependent claims.

Die Abbildung zeigt die Prozesseinbindung, bei welcher das Gichtgas entnommen und der Wärmeinhalt sowie das CO2 sowie ggfs andere biochemisch wertvolle Inhaltstoffe dem Bioreaktor zugeführt wird.The figure shows the process integration, in which the blast furnace gas is removed and the heat content as well as the CO2 and possibly other biochemically valuable ingredients are fed into the bioreactor.

Dieser ist vorzugsweise mit Wasserlinsen oder Eichhornia auf übereinander gestapelten Wasserkulturflächen gefüllt. Das CO2 wird dort in Biomasse umgesetzt, weil diese Pflanzen unter CO2 Einfluss ein ernorm gesteigertes Vermehrungsverhalten aufweisen.This is preferably filled with duckweed or squirrel on stacked hydroponic surfaces. The CO2 is converted there into biomass, because these plants show under CO2 influence an enormously increased propagation behavior.

Einfallendes Licht ist weiterer biogen eingewirkte und gebundene Energie. Die erntbare Biomasse wird bspw in einen Biogaserzeugungsprozess eingebunden und dem Stahlprozess hernach wieder ggfs in aufmethanisierter Weise rückgeführt.Incident light is further biogenic and bound energy. The harvestable biomass is integrated, for example, into a biogas production process and subsequently returned to the steel process, if necessary in a methanized manner.

Auch die anfallenden Mengen von CO2 aus der Aufmethanisierung, sowie die CO2-Menge bspw aus der Stahlaufwertung, Thomasverfahren etc wird dem Bioreaktor wuchfördernd rückgespeist.Also the accumulating amounts of CO 2 from the demethanization, as well as the amount of CO2, for example, from the upgrading of the steel, Thomas process, etc., are fed back to the bioreactor to promote growth.

Auf diese Weise entsteht Stahlerzeugungsprozess, der je nach Größe des Bioreaktors zumindest teilweise CO2-neutral ist.This creates a steelmaking process that is at least partially CO 2 -neutral, depending on the size of the bioreactor.

Claims (3)

Verfahren zum Betrieb eines Hüttenwerkes, insbesondere eines Stahlwerkes, bei welchem CO2-haltige Abgase entstehen, dadurch gekennzeichnet, dass die Abgase aus dem Hochofen (Gichtgas) oder die Abgase in Metallveredlungsprozessen entweder direkt oder nach einem Gaswäscher in einen geschlossenen, aquatische Biomasse enthaltenden hermetisch abschliessbaren Bioreaktor oder in ein hermetisch abschließbares Gewächshaus eingespeist wird zur wuchsbeschleunigten Verstoffwechselung von CO2 in aquatische Biomasse, die wiederum zur Biogaserzeugung herangezogen werden, welches seinerseits wiederum zumindest teilweise als Energieträger dem Metallerzeugungsprozess zugespeist wird.A method for operating a steelworks, in particular a steel plant, in which CO 2 -containing exhaust gases, characterized in that the exhaust gases from the blast furnace (blast furnace gas) or the exhaust gases in metallurgy processes either directly or after a gas scrubber hermetically contained in a closed, aquatic biomass lockable bioreactor or fed into a hermetically sealed greenhouse is used for growth-accelerated metabolism of CO 2 in aquatic biomass, which in turn are used for biogas production, which in turn is at least partially fed as an energy source to the metal-forming process. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass auch abfallende Abwärme in den Prozess recycliziert wird, derart, dass die Wärme des Hochofengichtgases oder anderweitige Prozesswärme in den Bioreaktor direkt oder über Wärmetauscher eingeleitet wird.A method according to claim 1, characterized in that also waste waste heat is recycled into the process, such that the heat of the blast furnace gas or other process heat is introduced into the bioreactor directly or via heat exchangers. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass darüber hinaus gasförmige und/oder in Wasser gelöste Mineralien und/oder Schwefelverbindungen den Aqualkulturen im Bioreaktor zugeführt werden.A method according to claim 1, characterized in that in addition gaseous and / or dissolved in water minerals and / or sulfur compounds are supplied to the aqua cultures in the bioreactor.
DE102010049639A 2010-10-28 2010-10-28 Method for operating smelter, particularly steel mill, involves feeding exhaust gases from blast furnace or exhaust gases in metal refining processes either directly or after gas scrubber into closed aquatic biomass Withdrawn DE102010049639A1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015086154A1 (en) 2013-12-12 2015-06-18 Thyssenkrupp Ag Plant combination for producing steel and method for operating the plant combination
WO2019233934A1 (en) * 2018-06-07 2019-12-12 Thyssenkrupp Ag Plant complex for producing steel and a method for operating the plant complex

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015086154A1 (en) 2013-12-12 2015-06-18 Thyssenkrupp Ag Plant combination for producing steel and method for operating the plant combination
DE102013113913A1 (en) * 2013-12-12 2015-06-18 Thyssenkrupp Ag Plant network for steelmaking and process for operating the plant network
EP3608427A1 (en) * 2013-12-12 2020-02-12 thyssenkrupp AG Plant combination for producing steel
US10697030B2 (en) 2013-12-12 2020-06-30 Thyssenkrupp Ag Plant combination for producing steel and method for operating the plant combination
EP4039830A1 (en) * 2013-12-12 2022-08-10 Thyssenkrupp AG Plant combination for producing steel and method for operating the plant combination
WO2019233934A1 (en) * 2018-06-07 2019-12-12 Thyssenkrupp Ag Plant complex for producing steel and a method for operating the plant complex
CN112313347A (en) * 2018-06-07 2021-02-02 蒂森克虏伯股份公司 Assembly of installations for producing steel and method for operating an assembly of installations

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