DE10012051A1 - Process for recovering heat in high temperature processes comprises reacting in a reformer a partial stream of gaseous or liquid fuel with a partial stream of hot combustion gases in an endothermic gasification reaction to form a fuel gas - Google Patents

Process for recovering heat in high temperature processes comprises reacting in a reformer a partial stream of gaseous or liquid fuel with a partial stream of hot combustion gases in an endothermic gasification reaction to form a fuel gas

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DE10012051A1
DE10012051A1 DE10012051A DE10012051A DE10012051A1 DE 10012051 A1 DE10012051 A1 DE 10012051A1 DE 10012051 A DE10012051 A DE 10012051A DE 10012051 A DE10012051 A DE 10012051A DE 10012051 A1 DE10012051 A1 DE 10012051A1
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fuel
high temperature
reformer
partial stream
fuel gas
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Rudolf Jeschar
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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
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
    • C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • F23G7/061—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating
    • F23G7/065—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel
    • 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/02—Processes for making hydrogen or synthesis gas
    • C01B2203/0205—Processes for making hydrogen or synthesis gas containing a reforming step
    • C01B2203/0211—Processes for making hydrogen or synthesis gas containing a reforming step containing a non-catalytic reforming step
    • C01B2203/0216—Processes for making hydrogen or synthesis gas containing a reforming step containing a non-catalytic reforming step containing a non-catalytic steam reforming step
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/02—Processes for making hydrogen or synthesis gas
    • C01B2203/0205—Processes for making hydrogen or synthesis gas containing a reforming step
    • C01B2203/0211—Processes for making hydrogen or synthesis gas containing a reforming step containing a non-catalytic reforming step
    • C01B2203/0222—Processes for making hydrogen or synthesis gas containing a reforming step containing a non-catalytic reforming step containing a non-catalytic carbon dioxide reforming step
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/02—Processes for making hydrogen or synthesis gas
    • C01B2203/0205—Processes for making hydrogen or synthesis gas containing a reforming step
    • C01B2203/0227—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step
    • C01B2203/0233—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step the reforming step being a steam reforming step
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/02—Processes for making hydrogen or synthesis gas
    • C01B2203/0205—Processes for making hydrogen or synthesis gas containing a reforming step
    • C01B2203/0227—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step
    • C01B2203/0238—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step the reforming step being a carbon dioxide reforming step
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/80—Aspect of integrated processes for the production of hydrogen or synthesis gas not covered by groups C01B2203/02 - C01B2203/1695
    • C01B2203/84—Energy production
    • 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
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0033—Heating elements or systems using burners
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
    • 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
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • 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
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
    • 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
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/141—Feedstock

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Inorganic Chemistry (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

Process for recovering heat comprises reacting in a reformer a partial stream of gaseous or liquid fuel with a partial stream of hot combustion gases in an endothermic gasification reaction to form a fuel gas; and inserting with the other partial stream of the fuel to heat a high temperature process. The gasification process is heated with the other partial stream of the combustion waste gas. Preferred Features: The combustion waste gas exiting the reformer and utilized for heating is used in a recuperator for pre-heating the combustion air for the high temperature process. The fuel gas produced in the reformer is used with the directly produced fuel partial stream and the pre-heated combustion air in a burner unit for heating the high temperature process. The combustion air is enriched with oxygen.

Description

Nach dem Stand der Technik dienen Hochtemperaturprozesse der thermischen Behandlung im industriellen Bereich, wie zum Beispiel
According to the prior art, high-temperature processes are used for thermal treatment in the industrial sector, for example

  • - Wärmen, Wärmebehandeln und Schmelzen von Metallen,- heating, heat treatment and melting of metals,
  • - metallurgische Prozesse in der Stahlindustrie,- metallurgical processes in the steel industry,
  • - metallurgische Prozesse in der Gießereitechnik,- metallurgical processes in foundry technology,
  • - metallurgische Prozesse in der Buntmetallindustrie,- metallurgical processes in the non-ferrous metal industry,
  • - Zementherstellung,- cement production,
  • - Kalkherstellung,- lime production,
  • - Herstellung von Feuerfestprodukten,- manufacture of refractory products,
  • - Thermoprozesse in der chemischen Industrie,- thermal processes in the chemical industry,
  • - thermische Entsorgung spezieller Abfälle.- thermal disposal of special waste.

Allen diesen Prozessen ist gemeinsam, daß sie in brennstoffbeheizten Industrieöfen durchgeführt werden und durch einen überaus großen Energiebedarf gekennzeichnet sind. Im Vergleich zu allen übrigen Prozessen der Industrie beträgt der Energieeinsatz aller Industrieofenprozesse in der Bundesrepublik Deutschland mehr als 50%. Dies verdeutlicht die Bedeutung dieser Thermoprozesstechnik für die gesamte Energiewirtschaft der Bundesrepublik und darüberhinaus weltweit.All these processes have in common that they are in fuel-heated Industrial furnaces are carried out and by an extremely large Energy requirements are marked. Compared to all other processes In industry, the energy input of all industrial furnace processes in the Federal Republic of Germany more than 50%. This illustrates the importance this thermal process technology for the entire energy industry of Federal Republic and beyond worldwide.

Das Problem der Industrieofenprozesse ist energiebezogen darin zu sehen, daß die Temperatur der Verbrennungsgase (Abgase) beim Verlassen des brennstofbeheizten Reaktionsraumes durch die Prozeßbedingungen des thermisch zu behandelnden Gutes vorgegeben wird und deshalb beim Verlassen der Gesamtanlage häufig sehr hohe Werte erreicht. Dies ist der wesentliche Grund für den hohen Energiebedarf der Hochtemperaturprozesse. The problem of industrial furnace processes is related to energy see that the temperature of the combustion gases (exhaust gases) when leaving of the fuel-heated reaction space through the process conditions of good to be treated thermally is specified and therefore in Leaving the entire system often reached very high values. this is the essential reason for the high energy requirements of the high temperature processes.  

Die bisherigen Arten der Wäremrückgewinnung aus den Ofenabgasen stellen sich wie folgt dar:
The previous types of heat recovery from the furnace exhaust gases are as follows:

  • - Vorwärmung der Verbrennungsluft mit Rekuperatoren,- preheating the combustion air with recuperators,
  • - Vorwärmung der Verbrennungsluft mit Regeneratoren,- preheating the combustion air with regenerators,
  • - Vorwärmung des Brennstoffes mit Rekuperatoren,- preheating the fuel with recuperators,
  • - Vorwärmung des Brennstoffes mit Regeneratoren,- preheating the fuel with regenerators,
  • - Vorwärmung des Gutes in Vorwärmzonen,- preheating the goods in preheating zones,
  • - Verringerung der Abgasmenge durch Sauerstoffanreiche­ rung in der Verbrennungsluft,- Reduction of the amount of exhaust gas due to oxygenation combustion air,
  • - Verringerung der Abgasmenge durch Verwendung von reinem Sauerstoff,- Reduction of the amount of exhaust gas by using pure oxygen,
  • - Vorwärmung der Verbrennungsluft durch Wärmerück­ gewinnung aus dem thermisch behandelten Gut.- Preheating of the combustion air through heat recovery extraction from the thermally treated material.

Die größte Verbreitung hat der Einsatz von Rekuperatoren zur Vorwärmung der Verbrennungsluft sowie die Vorwärmung des Gutes in Vorwärmzonen gefunden. Beiden Technologien sind jedoch Grenzen gesetzt. Aus materialtechnischen Gründen dürfen die Eintrittstemperaturen der Abgase in die Rekuperatoren nur in Ausnahmefällen größer als etwa 1200°C sein. Darüberhinaus sind bei vielen Ofenanlagen die Temperaturen der vorgewärmten Verbrennungsluft aus konstruktiven Gründen auf 600-700°C begrenzt. Beide Grenzen führen zu erheblichen Abgasverlusten und damit zu hohen Werfen des Energiebedarfs des jeweiligen Prozesses. Auch der Vorwärmung des thermisch zu behandelnden Gutes sind Grenzen gesetzt. Naturgemäß ist die Wärmeübertragung in den Vorwärmzonen der Industrieöfen sehr schlecht, so daß eine wirksame Wärmeübertragung nur mit relativ großen Temperaturdifferenzen zwischen den Ofengasen und dem Gut gelingt. Die Folge sind hohe Abgasverluste. The use of recuperators for preheating is most widespread the combustion air and the preheating of the goods in preheating zones found. However, there are limits to both technologies. Out For technical reasons, the inlet temperatures of the exhaust gases may the recuperators can only be greater than about 1200 ° C in exceptional cases. In addition, the temperatures of many furnace systems preheated combustion air for design reasons to 600-700 ° C limited. Both limits lead to significant exhaust gas losses and thus high throwing of the energy requirement of the respective process. Also the There are limits to preheating the material to be thermally treated. The heat transfer in the preheating zones is natural Industrial stoves very bad, so that effective heat transfer only with relatively large temperature differences between the furnace gases and the goods succeed. The result is high exhaust gas losses.  

Die Lösung des Problems ist im beigefügten Schema eines Hochtemperaturprozesses dargestellt und wird wie folgt beschrieben.The solution to the problem is one in the attached scheme High temperature process is shown and is described as follows.

Die Beheizung des Ofens (1) erfolgt unter Einsatz eines flüssigen oder gasförmigen Primärbrennstoffes (2). Hier wird jedoch nur ein Teilstrom des insgesamt benötigten Brennstoffes dem Ofen (1) direkt zugeführt.The furnace ( 1 ) is heated using a liquid or gaseous primary fuel ( 2 ). Here, however, only a partial flow of the total fuel required is fed directly to the furnace ( 1 ).

Die aus der oxidierenden Verbrennung im Rahmen der Ofenbeheizung entstehenden Verbrennungsabgase (3) enthalten die für das erfindungsgemäße Verfahren relevanten Anteile an Kohlendioxid und Wasser. Sie fallen verfahrensbedingt mit hohen Temperaturen an, die es bei einer Verbrennungsluftvorwärmung aus materialtechnischen Gründen häufig erforderlich machen, vor dem Eintritt in den Rekuperatur (4) die Temperatur durch Zumischung von Kaltluft zu reduzieren. Dies entspricht einem erheblichen Wärmeenergieverlust.The combustion exhaust gases ( 3 ) resulting from the oxidizing combustion in the context of furnace heating contain the proportions of carbon dioxide and water relevant for the process according to the invention. Due to the process, they occur at high temperatures, which in the case of combustion air preheating often make it necessary for material reasons to reduce the temperature by adding cold air before entering recuperation ( 4 ). This corresponds to a considerable loss of thermal energy.

Im erfindungsgemäßen Verfahren gelangt ein Teilstrom (7) der Ofenabgase, die mit einer Temperatur von mehr als 1000°C anfallen können, in einen Reformer (5) und werden dort mit einem Teilstrom des Brennstoffes (6) zusammengeführt. Bedingt durch die vom zweiten Ofenabgas-Teilstrom (8) eingebrachte Temperatur in Verbindung mit den Kohlenwasserstoffen des Brennstoffteilstroms und dem Gehalt an Kohlendioxid und Wasser des Ofenabgasteilstroms (7) entwickeln sich die Reaktionen der endothermen Vergasung im Sinne einer Crackung oder Umwandlung wie folgt:
In the method according to the invention, a partial flow ( 7 ) of the furnace exhaust gases, which can be generated at a temperature of more than 1000 ° C., reaches a reformer ( 5 ) and is combined there with a partial flow of the fuel ( 6 ). Due to the temperature introduced by the second furnace exhaust gas partial stream ( 8 ) in connection with the hydrocarbons of the fuel partial stream and the content of carbon dioxide and water in the furnace exhaust gas partial stream ( 7 ), the reactions of endothermic gasification in the sense of cracking or conversion develop as follows:

CH4 + CO2 → 2CO + 2H2 (endotherm) 1
CH 4 + CO 2 → 2CO + 2H 2 (endothermic) 1

CH4 + H2O → CO + 3H2 (endotherm) 2
CH 4 + H 2 O → CO + 3H 2 (endothermic) 2

CH4 + 2O2 → CO2 + 2H2O (exotherm) 3
CH 4 + 2O 2 → CO 2 + 2H 2 O (exothermic) 3

wobei die Ergebnisse der Reaktion 3) prozessbedingt wieder in die Reaktionen 1) und 2) überführt werden.the results of reaction 3 ) being transferred back into reactions 1 ) and 2) due to the process.

Somit entsteht im Reformer unter Nutzung der hohen Temperatur des Ofenabgases, die andernfalls durch Kühlung (Wärneenergie­ verlust) reduziert werden müßte, ein heizwerfreicher Brennstoff (9), der neben dem Brennstoffteilstrom (2) zur Ofenbeheizung eingesetzt wird.Thus, in the reformer, using the high temperature of the furnace exhaust gas, which would otherwise have to be reduced by cooling (loss of thermal energy), a fuel-friendly fuel ( 9 ) is produced, which is used in addition to the partial fuel flow ( 2 ) for heating the furnace.

Die Temperatur des aus dem Reformer austretenden Abgases (10) ermöglicht die Vorwärmung der Verbrennungsluft (11) im Rekuperator (4) im Rahmen eines Temperaturniveaus, das keine materialtechnischen Probleme entstehen läßt. Der Wärmeenergie­ verlust durch Kühlung entfällt. Die vorgewärmte Verbrennungsluft (12) erreicht die Brenneranlage der Ofenbeheizung.The temperature of the exhaust gas ( 10 ) emerging from the reformer enables preheating of the combustion air ( 11 ) in the recuperator ( 4 ) within a temperature level that does not cause any material problems. The heat energy lost through cooling is eliminated. The preheated combustion air ( 12 ) reaches the burner system of the furnace heating.

Das aus dem Rekuperator austretende Ofenabgas (13), dessen fühlbare Wärme optimal genutzt wurde emittiert, nach verfahrensbedingt eventuell erforderlicher Reinigung über einen Kamin in die Atmosphäre.The furnace exhaust gas ( 13 ) emerging from the recuperator, the sensible heat of which has been optimally used, is emitted into the atmosphere via a chimney after possibly necessary cleaning.

Das Erfordernis der Reinigung des Ofenabgases (13) steht in keinem Zusammenhang mit dem erfindungsgemäßen Verfahren. Durch optimale Wärmenutzung in Verbindung mit der Brennstofferzeugung, beziehungsweise Umwandlung im Reformer (5), erhält das Verfahren eine besondere ökologische Bedeutung. Es leistet einen signifikanten Beitrag zur Einsparung fossiler Brennstoffe. Das spezifische Schadstoff- Emissionspotential für einen prozessbedingten Energiebedarf wird erheblich reduziert.The need to clean the furnace exhaust gas ( 13 ) is not related to the method according to the invention. The process takes on particular ecological importance through the optimal use of heat in connection with fuel production or conversion in the reformer ( 5 ). It makes a significant contribution to saving fossil fuels. The specific pollutant emission potential for a process-related energy requirement is considerably reduced.

In diesem Zusammenhang darf darauf hingewiesen werden, dass durch den Verbrauch fossiler Brennstoffe im proportionalen Verhältnis die sogenannten Treibhausgase erzeugt werden und damit die mögliche Erwärmung der Erdatmosphäre maßgebend gefördert wird.In this context it should be pointed out that through the consumption of fossil fuels in a proportional ratio the so-called greenhouse gases are generated and thus the possible warming of the earth's atmosphere is significantly promoted.

Die Anwendung des erfindungsgemäßen Verfahrens ist bei allen Hochtemperaturprozessen, wie auf der ersten Seite der Beschreibung benannt und darüberhinaus bei speziellen verfahrentechnischen Einrichtungen, bei denen hohe Temperaturen erforderlich sind, möglich. Damit erhält das Verfahren seine branchenübergreifende Bedeutung im industriellen Bereich.The method according to the invention is used in all of them High temperature processes as on the first page of the description  named and also for special process engineering Facilities where high temperatures are required are possible. This gives the process its cross-sectoral importance in the industrial sector.

Claims (6)

1. Verfahren zur Wärmerückgewinnung bei Hochtemperaturprozessen durch Brenngaserzeugung aus Kohlenwasserstoffen und einem Teilstrom heißer Verbrennungsabgase, dadurch gekennzeichnet, dass in einer apparativen Einheit im Sinne eines Reformers ein Teilstrom des gasförmigen oder flüssigen Brennstoffes mit einem Teilstrom der heißen Verbrennungsabgase in der endothermen Vergasungsreaktion zu einem Brenngas umgewandelt wird und dieses Brenngas gemeinsam mit dem anderen Teilstrom des Brennstoffes zur Beheizung des Hochtemperaturprozesses zum Einsatz kommt, wobei der Vergasungs­ prozess mit dem anderen Teilstrom des Verbrennungsabgases beheizt wird.1. A method for heat recovery in high-temperature processes by fuel gas generation from hydrocarbons and a partial flow of hot combustion exhaust gases, characterized in that in a device unit in the sense of a reformer, a partial flow of the gaseous or liquid fuel is converted into a fuel gas with a partial flow of the hot combustion exhaust gases in the endothermic gasification reaction is and this fuel gas is used together with the other part of the fuel for heating the high temperature process, the gasification process being heated with the other part of the combustion exhaust gas. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das aus dem Reformer austretende, zu dessen Beheizung genutzte Verbrennungsabgas in einem Rekuperator zur Vorwärmung der Verbrennungsluft für den Hochtemperaturprozess eingesetzt wird.2. The method according to claim 1, characterized in that that exiting the reformer for heating it Combustion exhaust gas used in a recuperator for preheating the combustion air is used for the high temperature process. 3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das im Reformer erzeugte Brenngas mit dem direkt eingesetzten Brennstoffteilstrom und der vorgewärmten Verbrennungsluft gemeinsam in einer Brennereinheit zur Beheizung des Hochtemperaturprozesses zum Einsatz kommt.3. The method according to claim 1, characterized in that the fuel gas generated in the reformer with the directly used Partial fuel flow and the preheated combustion air together in a burner unit for heating the High temperature process is used. 4. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das aus dem Hochtemperaturprozess austretende Abgas brennbare Komponenten, wie zum Beispiel Kohlenmonoxid und Wasserstoff enhält, deren Heizwert im erfindungsgemäßen Verfahren energetisch genutzt wird.4. The method according to claim 1, characterized in that the flammable exhaust gas emerging from the high temperature process  Components such as carbon monoxide and hydrogen contains, the calorific value in the process of the invention energetically is being used. 5. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Brennstoffströme für die direkte Beheizung des Hochtempe­ raturprozesses und für die Brenngaserzeugung im Reformer noch Art und Zusammensetzung unterschiedlich sein können.5. The method according to claim 1, characterized in that the fuel flows for the direct heating of the high temperature process and for the fuel gas generation in the reformer still Art and composition can be different. 6. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Verbrennungsluft mit Sauerstoff angereichert wird.6. The method according to claim 1, characterized in that the combustion air is enriched with oxygen.
DE10012051A 2000-03-14 2000-03-14 Process for recovering heat in high temperature processes comprises reacting in a reformer a partial stream of gaseous or liquid fuel with a partial stream of hot combustion gases in an endothermic gasification reaction to form a fuel gas Withdrawn DE10012051A1 (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1650518A1 (en) * 2003-07-15 2006-04-26 Ngk Insulators, Ltd. Firing furnace and method for firing
FR2937404A1 (en) * 2008-10-21 2010-04-23 Jacques Raphael Benzaria Boiler e.g. industrial boiler, burner operating method for producing heat energy, involves supplying main fuel and additional fuel that is obtained by reacting carbon dioxide with portion of main fuel on heated catalytic mass, to burner
DE102009030521A1 (en) * 2009-06-25 2010-12-30 Siemens Aktiengesellschaft Process for the use of waste heat of an industrial process, as well as apparatus and their use
DE102011002612A1 (en) * 2011-01-13 2012-07-19 Siemens Aktiengesellschaft Process for treating a carbon dioxide-containing exhaust gas
FR3059314A1 (en) * 2016-11-29 2018-06-01 IFP Energies Nouvelles PROCESS FOR PRODUCING A SYNTHESIS GAS FROM A FLOW OF LIGHT HYDROCARBONS AND A GAS CHARGE FROM A METALLURGICAL INDUSTRIAL UNIT COMPRISING H2
FR3059313A1 (en) * 2016-11-29 2018-06-01 IFP Energies Nouvelles PROCESS FOR PRODUCING A SYNTHESIS GAS FROM A LIGHT HYDROCARBON STREAM AND A GAS CHARGE COMPRISING CO2, N2, O2 AND H2O FROM AN INDUSTRIAL UNIT COMPRISING AN OVEN A COMBUSTION

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1650518A1 (en) * 2003-07-15 2006-04-26 Ngk Insulators, Ltd. Firing furnace and method for firing
EP1650518A4 (en) * 2003-07-15 2009-11-11 Ngk Insulators Ltd Firing furnace and method for firing
FR2937404A1 (en) * 2008-10-21 2010-04-23 Jacques Raphael Benzaria Boiler e.g. industrial boiler, burner operating method for producing heat energy, involves supplying main fuel and additional fuel that is obtained by reacting carbon dioxide with portion of main fuel on heated catalytic mass, to burner
DE102009030521A1 (en) * 2009-06-25 2010-12-30 Siemens Aktiengesellschaft Process for the use of waste heat of an industrial process, as well as apparatus and their use
DE102011002612A1 (en) * 2011-01-13 2012-07-19 Siemens Aktiengesellschaft Process for treating a carbon dioxide-containing exhaust gas
WO2012095328A3 (en) * 2011-01-13 2013-11-21 Siemens Aktiengesellschaft Method for treating a carbon dioxide-containing waste gas
CN103547863A (en) * 2011-01-13 2014-01-29 西门子公司 Method for treating a carbon dioxide-containing waste gas
RU2569105C2 (en) * 2011-01-13 2015-11-20 Сименс Акциенгезелльшафт Method of treatment of flue gas containing carbon dioxide
FR3059314A1 (en) * 2016-11-29 2018-06-01 IFP Energies Nouvelles PROCESS FOR PRODUCING A SYNTHESIS GAS FROM A FLOW OF LIGHT HYDROCARBONS AND A GAS CHARGE FROM A METALLURGICAL INDUSTRIAL UNIT COMPRISING H2
FR3059313A1 (en) * 2016-11-29 2018-06-01 IFP Energies Nouvelles PROCESS FOR PRODUCING A SYNTHESIS GAS FROM A LIGHT HYDROCARBON STREAM AND A GAS CHARGE COMPRISING CO2, N2, O2 AND H2O FROM AN INDUSTRIAL UNIT COMPRISING AN OVEN A COMBUSTION
WO2018099694A1 (en) * 2016-11-29 2018-06-07 IFP Energies Nouvelles Method for the production of a syngas from a stream of light hydrocarbons and from a gas feed originating from an industrial metallurgical plant comprising h2
WO2018099692A1 (en) * 2016-11-29 2018-06-07 IFP Energies Nouvelles Method for the production of a syngas from a stream of light hydrocarbons and from a gas feed comprising co2, n2, o2 and h2o and originating from an industrial plant comprising a combustion furnace

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