EP1879832A1 - Procede de chauffage et d'oxydation partielle d'un melange vapeur/gaz naturel apres un reformeur primaire - Google Patents

Procede de chauffage et d'oxydation partielle d'un melange vapeur/gaz naturel apres un reformeur primaire

Info

Publication number
EP1879832A1
EP1879832A1 EP06706982A EP06706982A EP1879832A1 EP 1879832 A1 EP1879832 A1 EP 1879832A1 EP 06706982 A EP06706982 A EP 06706982A EP 06706982 A EP06706982 A EP 06706982A EP 1879832 A1 EP1879832 A1 EP 1879832A1
Authority
EP
European Patent Office
Prior art keywords
gas
steam
burner
following
pore
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP06706982A
Other languages
German (de)
English (en)
Inventor
Hartmut Hederer
Joachim Johanning
Evgeni Gorval
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
Uhde GmbH
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 Uhde GmbH filed Critical Uhde GmbH
Publication of EP1879832A1 publication Critical patent/EP1879832A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • C01B3/38—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 using catalysts
    • C01B3/382—Multi-step processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
    • B01J8/06—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds in tube reactors; the solid particles being arranged in tubes
    • B01J8/062—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds in tube reactors; the solid particles being arranged in tubes being installed in a furnace
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
    • B01J8/06—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds in tube reactors; the solid particles being arranged in tubes
    • B01J8/065—Feeding reactive fluids
    • 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
    • C01B3/025—Preparation or purification of gas mixtures for ammonia synthesis
    • 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
    • C01B3/36—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 using oxygen or mixtures containing oxygen as gasifying agents
    • C01B3/363—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 using oxygen or mixtures containing oxygen as gasifying agents characterised by the burner used
    • 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
    • C01B2203/025—Processes for making hydrogen or synthesis gas containing a partial oxidation step
    • C01B2203/0255—Processes for making hydrogen or synthesis gas containing a partial oxidation step containing a non-catalytic partial oxidation 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
    • C01B2203/0283—Processes for making hydrogen or synthesis gas containing a CO-shift step, i.e. a water gas shift 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
    • C01B2203/06—Integration with other chemical processes
    • C01B2203/068—Ammonia synthesis
    • 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
    • C01B2203/08—Methods of heating or cooling
    • C01B2203/0805—Methods of heating the process for making hydrogen or synthesis gas
    • C01B2203/0811—Methods of heating the process for making hydrogen or synthesis gas by combustion of fuel
    • C01B2203/0816—Heating by flames
    • 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
    • C01B2203/08—Methods of heating or cooling
    • C01B2203/0805—Methods of heating the process for making hydrogen or synthesis gas
    • C01B2203/0811—Methods of heating the process for making hydrogen or synthesis gas by combustion of fuel
    • C01B2203/0822—Methods of heating the process for making hydrogen or synthesis gas by combustion of fuel the fuel containing hydrogen
    • 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
    • C01B2203/14—Details of the flowsheet
    • C01B2203/142—At least two reforming, decomposition or partial oxidation steps in series
    • 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

Definitions

  • the invention is directed to a method for heating and partial oxidation of a not separately preheated, vorreform faced steam / natural gas mixture for a NH 3 - synthesis gas, wherein the gas stream (raw synthesis gas) is supplied in the flow direction behind a primary reformer energy.
  • the synthesis gas production by means of steam reforming is usually carried out with great heat integration, i.
  • the waste heat of the steam reformer is used in many heat exchangers for natural gas, air and steam heating or steam generation. It is important in the generation of synthesis gas for a later ammonia synthesis to preheat the air required for the supply of atmospheric nitrogen as high as possible.
  • this object is achieved according to the invention in that the power supply is made directly behind the primary reformer via at least one positioned in the Gasabdiestechnisch the primary reformer pore burner.
  • variable additional catalyst use e.g. directly at the burner a partial oxidation catalyst, then a
  • DE-OS 19 200 01, EP-O 200 825-A1, EP-876 993-A1 or US Pat. No. 6,730,285-A relate to the production of a synthesis gas.
  • Commonly assigned US 6,746,624-A shows coated catalyst tubes, DE-198 39 782-A1 et al. also shows static mixers in flow paths.
  • DE-102 32 970-A1 describes a short-time special oxidation.
  • DE-102 39 111-Al mentions the use of a pore burner in conjunction with a fuel cell.
  • the energy supply is made directly via a plurality of pore burners positioned in the gas discharge lines of the primary reformer forming the flow path.
  • the energy supply is made directly via a plurality of pore burners positioned in the gas discharge lines of the primary reformer forming the flow path.
  • the energy supply by fuel gas and the oxidant oxygen and nitrogen and / or small amounts of CO 2 and / or steam are supplied.
  • a pore burner By means of a pore burner according to the invention, it is possible to regulate the amount of fuel gas in wide ranges, preferably more than stoichiometrically.
  • the invention also provides for the pore burner itself to be supplied with a fuel gas / air mixture (in particular CH 4 + air) which is not preheated or is slightly preheated to stoichiometric or super-stoichiometric operation.
  • a fuel gas / air mixture in particular CH 4 + air
  • the fuel gas mixture must remain below the ignition limit in terms of temperature.
  • the gas mixture is heated by means of the pore burner or to a temperature of about 1000 0 C to 1100 0 C, so that a carbon black content in the synthesis gas is prevented with certainty.
  • the heating can be carried out by means of a plurality of pore burners connected in series, wherein according to the invention catalytic mixing stages are interposed.
  • the gas stream is passed to or between the static mixing elements via further, in particular honeycomb-shaped, catalyst-containing elements.
  • the object mentioned is achieved in particular by a system which is characterized in that at least one pore burner is provided in each manifold of the reformer tubes between the last tube inlet and the connection to the transfer lines fluidly behind the primary reformer.
  • each pore burner associated with a static mixer in particular downstream.
  • FIG. 1 is a schematic diagram of a primary reformer with downstream units and the pore burners according to the invention
  • FIG. 2 shows a simplified spatial representation of a primary reformer with collecting tubes and pore burners positioned according to the invention
  • FIG. 3 to 5 enlarged views of pipe sections with differently shaped pore burners and in ⁇ * O ⁇ *
  • FIG. 6 shows the positioning of pore burners in the transition region of a collecting line to a transfer line.
  • the essential parts of the plant in Fig. 1, generally designated 1 unit are formed by the designated 2 primary reformer with the reformer tubes 3 (CH 4 + steam supply) and ceiling burners 4 and manifolds 5 and at least one transfer line 6, the latter in a waste heat boiler 7 with Steam drum 8 leads and via heat exchanger 9 finally to a C ⁇ / shift 10, whereupon it does not matter here but further.
  • FIG. 1 Shown dashed is the possibility of a ggf. external (adiabatic) catalyst bed 11.
  • the positioned in the transfer line 6 pore burner are generally designated in Fig. 1 with 12, the Zuglassorgane with 13, supplied by the example, air and CH 4 separately and mixed only at the last moment, where, as in Fig. 1 indicated, in the flow direction behind each pore burner 12 catalytic, static mixer 14 are provided.
  • FIG. 1 also indicates a supply line 15 through which any steam can be supplied to the system.
  • the primary reformer 2 is represented in a simplified three-dimensional view with the reformer tubes 3, the ceiling burners 4 and exhaust manifolds 16 fed via the CH 4 vapor feed line 3 a for discharging the exhaust gas from the combustion chamber and the manifolds 5 and a transfer line 6 Pore burners 12 are provided.
  • FIGS. ner the tube designated by 6 'of a transfer line 6 into which the pore burners, generally designated 12, are shown, is only partially shown in FIGS. ner are installed.
  • the head of the pore burner, designated by 16 is truncated cone-shaped with the porous burner wall 17 and a displacement body 18 directed against the flow direction with a downstream cover plate.
  • the burner head 16 supporting supply line 13 has an outer insulation 19, a Kaltluftzu09 Gustav with eg O 2 -containing gas 20 and a centric inner tube 21 for the ignition or fuel gas.
  • the pore burners have in common that combustion takes place in the burner wall 17, i. no flashback is possible. Details of such burners may e.g. be taken from DE-43 22 109-A or the corresponding EP-O 657 011-B.
  • FIG. 3 also shows how the static mixers 14 provided with a catalyst coating 22 are positioned in the tube 6. They are shown as baffle or baffles only symbolic, they can be designed schaufeiförmig u. like. more, what does not matter here.
  • the static mixers can, for example, be combined to form a structural unit by holding rods 23 in such a way that they can be pulled out of the tube 6 with its insulating coating 6 ", which is not shown in any detail, which also applies to the expandability of the burner ,
  • the flow direction of the crude synthesis gas is indicated by small arrows 24 in the figures.
  • the hot synthesis gas after the burners is indicated by the arrows 25.
  • This synthesis gas is N 2 -, CO, CO 2 -, H 2 -, H 2 O-containing.
  • FIG. 4 is similar representation as in Fig. 3rd a modified embodiment of a burner head 16a shown.
  • the porous burner wall 17a is positioned somewhat differently, it forms the cover plate of the burner as well as the inner displacement body 18. Otherwise, the conditions correspond to those of FIG. 3rd
  • the catalytically coated static mixers are indicated somewhat differently than partial airfoils 22a and are likewise combined to form a built-in cage via corresponding connecting elements 23.
  • a modified embodiment is shown, in particular as regards the design of the pore burner 16b.
  • This is designed here as a cylindrical burner body, wherein over the length of the flame front receiving wall 10b is associated with a series of static mixers 22b.
  • FIG. 6 shows a pore burner with supply
  • the burner head 16 projects in the example shown in a manifold 5, which carries the reformer tubes, wherein at the head end of a transfer line 6 is provided, which is rotated for reasons of presentation by 90 ° in the plane.
  • a transfer line 6 is provided, which is rotated for reasons of presentation by 90 ° in the plane.
  • the positioning of a pore burner head 16 in this transfer line 6 is thinner, and the transfer line 6 can easily be inserted and removed by means of a cover.
  • the end cover is designated 26.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Hydrogen, Water And Hydrids (AREA)

Abstract

La présente invention concerne un procédé et une installation permettant un chauffage et une oxydation partielle d'un mélange vapeur/gaz naturel préalablement reformé et non préchauffé séparément pour obtenir un gaz de synthèse NH3. Le courant gazeux (gaz de synthèse brut) est alimenté en énergie dans la direction d'écoulement, après un reformeur primaire. L'objectif de la présente invention est d'éviter la formation de suie dans la plus grande mesure possible et d'offrir la possibilité d'une addition variable de N2 et de O2 ou de mélanges de ceux-ci, par exemple. Cet objectif est atteint en ce que l'apport d'énergie après le reformeur primaire est directement pris en charge par au moins un brûleur poreux qui est placé dans la conduite d'évacuation de gaz du reformeur primaire.
EP06706982A 2005-05-10 2006-02-16 Procede de chauffage et d'oxydation partielle d'un melange vapeur/gaz naturel apres un reformeur primaire Withdrawn EP1879832A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005021500A DE102005021500A1 (de) 2005-05-10 2005-05-10 Verfahren zur Aufheizung eines Dampf-/Erdgasgemisches im Bereich eines Gassammelrohres nach einem Primärreformer
PCT/EP2006/001380 WO2006119812A1 (fr) 2005-05-10 2006-02-16 Procede de chauffage et d'oxydation partielle d'un melange vapeur/gaz naturel apres un reformeur primaire

Publications (1)

Publication Number Publication Date
EP1879832A1 true EP1879832A1 (fr) 2008-01-23

Family

ID=36579537

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06706982A Withdrawn EP1879832A1 (fr) 2005-05-10 2006-02-16 Procede de chauffage et d'oxydation partielle d'un melange vapeur/gaz naturel apres un reformeur primaire

Country Status (7)

Country Link
US (1) US7837974B2 (fr)
EP (1) EP1879832A1 (fr)
JP (1) JP2008540310A (fr)
CN (1) CN101184688A (fr)
DE (1) DE102005021500A1 (fr)
RU (1) RU2394766C2 (fr)
WO (1) WO2006119812A1 (fr)

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BR112015004834A2 (pt) 2012-09-05 2017-07-04 Powerdyne Inc método para produzir combustível
WO2014039723A1 (fr) 2012-09-05 2014-03-13 Powerdyne, Inc. Procédé de séquestration de particules de métaux lourds à l'aide de h2o, co2, o2, et source de particules
BR112015004839A2 (pt) 2012-09-05 2017-07-04 Powerdyne Inc sistema para sintetizar um fluido combustível
EP2893324A4 (fr) 2012-09-05 2016-05-11 Powerdyne Inc Procédés de génération de combustible utilisant des champs électriques haute tension
WO2014039695A1 (fr) 2012-09-05 2014-03-13 Powerdyne, Inc. Procédés pour la génération d'hydrogène gazeux à l'aide de sources de plasma
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EP2904221A4 (fr) 2012-09-05 2016-05-18 Powerdyne Inc Procédés de production d'énergie à partir de h2o, co2, o2 et d'une charge d'alimentation de carbone
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US20080290322A1 (en) 2008-11-27
WO2006119812A1 (fr) 2006-11-16
RU2007145485A (ru) 2009-06-20
JP2008540310A (ja) 2008-11-20
CN101184688A (zh) 2008-05-21
US7837974B2 (en) 2010-11-23
RU2394766C2 (ru) 2010-07-20
DE102005021500A1 (de) 2006-11-16

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