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EP2424816A1 - Method for producing process gas for the claus process - Google Patents

Method for producing process gas for the claus process

Info

Publication number
EP2424816A1
EP2424816A1 EP10723912A EP10723912A EP2424816A1 EP 2424816 A1 EP2424816 A1 EP 2424816A1 EP 10723912 A EP10723912 A EP 10723912A EP 10723912 A EP10723912 A EP 10723912A EP 2424816 A1 EP2424816 A1 EP 2424816A1
Authority
EP
European Patent Office
Prior art keywords
gas
combustion chamber
tube
hydrogen sulfide
surrounding
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Withdrawn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
EP10723912A
Other languages
German (de)
French (fr)
Inventor
Eckhard JÜNGST
Wolfgang Nehb
Alexander Schriefl
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.)
Air Liquide Global E&C Solutions Germany GmbH
Original Assignee
Lurgi 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 Lurgi GmbH filed Critical Lurgi GmbH
Publication of EP2424816A1 publication Critical patent/EP2424816A1/en
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/02—Preparation of sulfur; Purification
    • C01B17/04—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides
    • C01B17/0404—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process
    • C01B17/0413—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process characterised by the combustion step
    • C01B17/0417—Combustion reactors
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/02—Preparation of sulfur; Purification
    • C01B17/04—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides
    • C01B17/0404—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process
    • C01B17/0413—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process characterised by the combustion step
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C6/00—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion
    • F23C6/04—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection
    • F23C6/045—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection with staged combustion in a single enclosure
    • F23C6/047—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection with staged combustion in a single enclosure with fuel supply in stages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
    • F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/32—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid using a mixture of gaseous fuel and pure oxygen or oxygen-enriched air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2209/00—Safety arrangements
    • F23D2209/30—Purging

Definitions

  • the invention relates to a process for the production of hydrogen sulfide and sulfur dioxide-containing process gas for the Claus process from hydrogen sulfide-containing feed gas which is burned with pure oxygen at temperatures in the range of 800 to 1650 ° C by means of several burners opening into a combustion chamber, in which, respectively Pure oxygen is introduced via a central tube, the feed gas is passed through a tube surrounding the central tube coaxially, and purge gas is introduced into the combustion chamber via a ring channel coaxially surrounding the feed gas tube and via a central tube of water vapor into a support combustion chamber arranged at a distance from the burners and connected to the combustion chamber a tube surrounding the central tube coaxially fuel gas and fed via a Schugasrohr coaxially surrounding outer tube Sauerwasserstrippgas and the combustion gases formed in the Stützakiungsraum be guided into the combustion chamber.
  • DE 34 30 015 C1 discloses an apparatus for burning hydrogen containing hydrogen to produce a process gas containing hydrogen sulfide and sulfur dioxide for the Claus process, with a combustion chamber for generating the process gas at temperatures of 1000 to 1300 ° C. Feeders for air and hydrogen sulfide containing gas to the combustion chamber and with a Stützfashionung in a combustion chamber opening into the combustion chamber known, the combustion gases of the support fire are passed into the combustion chamber and the support fire supply lines for hydrocarbon-rich heating gas, water vapor and air.
  • the combustion chamber opens at least one burner having a central tube for the oxygen supply, a coaxial surrounding the central tube second tube for the supply of the hydrogen sulfide containing ga- ses and a second conduit coaxially enclosing annular channel for the supply of combustion air into the combustion chamber.
  • the processing of feed gases succeeds with highly fluctuating levels of hydrogen sulfide and highly fluctuating amounts of feed gas.
  • combustion is with pure oxygen, with air at extremely high levels of hydrogen sulphide, and with air and oxygen under normal conditions.
  • the feed gas containing hydrogen sulfide is first converted by partial combustion to a mixture of hydrogen sulfide and sulfur dioxide, aiming for a molar ratio of the two components of 2: 1.
  • the recovered gas mixture is converted in a catalytic Claus plant to elemental sulfur and water and abandoned the exhaust gas of a desulfurization.
  • the exhaust gas of the desulfurization is usually modified in a thermal afterburning to sulfur dioxide, so that an exhaust gas is produced, which, however, contains only a small amount of sulfur dioxide.
  • the oxygen required for maintaining the high temperatures in the flame area of the burner and in the combustion chamber is made available in part, so that the total demand for oxygen can be kept low.
  • the hydrogen present in the product gas mixture of the combustion chamber is valuable in the further treatment of the gas mixture, since hydrogenation reactions are possible without the addition of foreign hydrogen.
  • the gas components hydrogen and carbon monoxide can be used as synthesis gas.
  • the outer annular channel is purged with inert gas, preferably carbon dioxide, to prevent the backflow of combustion gases from the combustion chamber, so that the combustion takes place exclusively with pure O 2 (> 90%).
  • inert gas preferably carbon dioxide
  • a device for carrying out the method, is particularly suitable in which the burners are mounted on a circle or circles surrounding the supporting firing space.
  • the axially extending central tube (11) of the support (4) is supplied via line (12) steam and the between this central tube (11) and this coaxial enclosing tube (13) existing annulus heating gas. Via line (14), the ignition flame (15) is supplied with fuel gas.
  • the components are not provided with reference numbers in the second burner.
  • the pipes (7) coaxially surrounding annular channels (9) are given a total of 137 kmol / h of carbon dioxide.
  • At the outlet of the combustion chamber (2) occur 1118 kmol / h of gas at a temperature of 904 ° C at a pressure of 1, 58 bar [a] from.
  • the gas has the following composition:

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

In a method for producing process gas containing hydrogen sulfide and sulfur dioxide for the Claus process, feed gas containing hydrogen sulfide is burned with pure oxygen using a plurality of burners leading into a combustion chamber, wherein the pure oxygen is introduced into the combustion chamber by way of a central pipe, the feed gas is introduced by way of a pipe coaxially surrounding the central pipe, and inert gas is introduced as rinsing gas by way of a ring channel coaxially surrounding the feed gas pipe. Advantageously, the CO2 obtained from the desorption of loaded methanol can be used as the inert gas.

Description

Verfahren zum Herstellen von Prozessgas für das Claus-Verfahren Process for producing process gas for the Claus process
Die Erfindung betrifft ein Verfahren zum Herstellen von Schwefelwasserstoff und Schwefeldioxid enthaltendem Prozessgas für das Claus-Verfahren aus Schwefelwasserstoff enthaltendem Einsatzgas, das mit reinem Sauerstoff bei Temperaturen im Bereich von 800 bis 1650° C mittels mehrerer in eine Brennkammer mündenden Brennern verbrannt wird, bei denen jeweils über ein Zentralrohr der reine Sauerstoff, über ein das Zentralrohr koaxial umgebendes Rohr das Einsatzgas und über einen das Einsatzgasrohr koaxial umgebenden Ringkanal Spülgas in die Brennkammer geleitet werden und in einen in Abstand zu den Brennern angeordneten mit der Brennkammer verbundenen Stützfeuerungsraum über ein Zentralrohr Wasserdampf, über ein das Zentralrohr koaxial umgebendes Rohr Heizgas und über ein das Heizgasrohr koaxial umgebendes äußeres Rohr Sauerwasserstrippgas eingespeist und die in dem Stützfeuerungsraum gebildeten Verbrennungsgase in die Brennkammer geführt werden.The invention relates to a process for the production of hydrogen sulfide and sulfur dioxide-containing process gas for the Claus process from hydrogen sulfide-containing feed gas which is burned with pure oxygen at temperatures in the range of 800 to 1650 ° C by means of several burners opening into a combustion chamber, in which, respectively Pure oxygen is introduced via a central tube, the feed gas is passed through a tube surrounding the central tube coaxially, and purge gas is introduced into the combustion chamber via a ring channel coaxially surrounding the feed gas tube and via a central tube of water vapor into a support combustion chamber arranged at a distance from the burners and connected to the combustion chamber a tube surrounding the central tube coaxially fuel gas and fed via a Heizgasrohr coaxially surrounding outer tube Sauerwasserstrippgas and the combustion gases formed in the Stützfeuerungsraum be guided into the combustion chamber.
Aus der DE 34 30 015 C1 ist eine Vorrichtung zum Verbrennen von schwefelwasser- stoffhaltigem Gas zum Erzeugen eines Schwefelwasserstoff und Schwefeldioxid ent- haltenden Prozessgases für das Claus-Verfahren, mit einer Brennkammer zum Erzeugen des Prozessgases bei Temperaturen von 1000 bis 1300° C, mit Zuführungen für Luft und Schwefelwasserstoff enthaltendem Gas zur Brennkammer und mit einer Stützfeuerung in einem in die Brennkammer mündenden Stützfeuerungsraum bekannt, wobei die Verbrennungsgase der Stützfeuerung in die Brennkammer geleitet werden und die Stützfeuerung Zuleitungen für kohlenwasserstoffreiches Heizgas, Wasserdampf und Luft aufweist. In die Brennkammer mündet mindestens ein Brenner, der ein Zentralrohr für die Sauerstoffzufuhr, ein das Zentralrohr koaxial umschließendes zweites Rohr für die Zufuhr des Schwefelwasserstoff enthaltenden Einsatzga- ses und ein das zweite Rohr koaxial umschließender Ringkanal für die Zufuhr von Verbrennungsluft in die Brennkammer umfasst. Durch diese Vorrichtung gelingt die Verarbeitung von Einsatzgasen mit stark schwankende Gehalten an Schwefelwasserstoff und stark schwankenden Einsatzgasmengen. Bei einem extrem niedrigen Schwefelwasserstoff-Gehalt erfolgt die Verbrennung mit reinem Sauerstoff, bei extrem hohen Schwefelwasserstoffgehalt mit Luft und unter normalen Bedingungen mit Luft und Sauerstoff.DE 34 30 015 C1 discloses an apparatus for burning hydrogen containing hydrogen to produce a process gas containing hydrogen sulfide and sulfur dioxide for the Claus process, with a combustion chamber for generating the process gas at temperatures of 1000 to 1300 ° C. Feeders for air and hydrogen sulfide containing gas to the combustion chamber and with a Stützfeuerung in a combustion chamber opening into the combustion chamber known, the combustion gases of the support fire are passed into the combustion chamber and the support fire supply lines for hydrocarbon-rich heating gas, water vapor and air. In the combustion chamber opens at least one burner having a central tube for the oxygen supply, a coaxial surrounding the central tube second tube for the supply of the hydrogen sulfide containing Einsatzga- ses and a second conduit coaxially enclosing annular channel for the supply of combustion air into the combustion chamber. By this device, the processing of feed gases succeeds with highly fluctuating levels of hydrogen sulfide and highly fluctuating amounts of feed gas. At extremely low levels of hydrogen sulphide, combustion is with pure oxygen, with air at extremely high levels of hydrogen sulphide, and with air and oxygen under normal conditions.
Beim Claus-Verfahren wird das Schwefelwasserstoff enthaltende Einsatzgas zunächst durch partielle Verbrennung zu einem Gemisch aus Schwefelwasserstoff und Schwefeldioxid umgesetzt und dabei ein Mol-Verhältnis der beiden Komponenten von 2 : 1 angestrebt. Das gewonnene Gasgemisch wird in einer katalytischen Claus-Anlage zu Elementarschwefel und Wasser umgesetzt und das Abgas einer Entschwefelungsanlage aufgegeben. Das Abgas der Entschwefelungsanlage wird üblicherweise in einer thermischen Nachverbrennung zu Schwefeldioxid abgewandelt, so dass ein Abgas entsteht, das allerdings nur noch eine geringe Menge an Schwefeldioxid enthält.In the Claus process, the feed gas containing hydrogen sulfide is first converted by partial combustion to a mixture of hydrogen sulfide and sulfur dioxide, aiming for a molar ratio of the two components of 2: 1. The recovered gas mixture is converted in a catalytic Claus plant to elemental sulfur and water and abandoned the exhaust gas of a desulfurization. The exhaust gas of the desulfurization is usually modified in a thermal afterburning to sulfur dioxide, so that an exhaust gas is produced, which, however, contains only a small amount of sulfur dioxide.
Um ein Schwefelwasserstoff enthaltendes Einsatzgas, das auch Kohlenwasserstoffe und Kohlendioxid enthält, verarbeiten zu können, ist gemäß der EP 0 315 225 B1 vorgesehen, dass dem Brenner ein Schwefelwasserstoff sowie Kohlenwasserstoffe oder Kohlendioxid enthaltendes Einsatzgas zugeführt wird, in der Kernzone der Brennerflamme eine Temperatur von 2000 bis 3000° C erzeugt wird und aus der Brennkammer ein Gasgemisch Kohlemonoxid und Wasserstoff mit einer Temperatur von bis zu 1650° C abgezogen wird. Durch die hohen Temperaturen in der Brennerflamme wird der überwiegende Teil des in dem Einsatzgas enthaltenen Kohlendioxids zu Koh- lenmonoxid und Sauerstoff gespalten; auch wird Wasser teilweise in Wasserstoff und Sauerstoff zerlegt. Dadurch wird der zum Aufrechterhalten der hohen Temperaturen im Flammbereich des Brenners und in der Brennkammer benötigte Sauerstoff zum Teil zur Verfügung gestellt, so dass der Gesamtbedarf an Sauerstoff niedrig gehalten werden kann. Der im Produktgasgemisch der Brennkammer vorhandene Wasserstoff ist bei der Weiterbehandlung des Gasgemisches wertvoll, da Hydrierreaktionen ohne Zugabe von fremdem Wasserstoff möglich werden. Ferner sind die Gaskomponenten Wasserstoff und Kohlenmonoxid als Synthesegas einsetzbar. Beim Verbrennen eines Schwefelwasserstoff enthaltenden Einsatzstroms ausschließlich mit reinem Sauerstoff wird der außenliegende Ringkanal kontinuierlich mit einer kleinen Luftmenge gespült, um den Rückfluss von Verbrennungsgasen aus der Brennkammer über den Ringkanal zu vermeiden.In order to be able to process a hydrogen sulfide-containing feed gas which also contains hydrocarbons and carbon dioxide, it is provided according to EP 0 315 225 B1 that a hydrogen sulfide and feed gas containing hydrocarbons or carbon dioxide is fed to the burner, a temperature of 2000 in the core zone of the burner flame is generated to 3000 ° C and from the combustion chamber, a gas mixture Kohlemonoxid and hydrogen is withdrawn at a temperature of up to 1650 ° C. Due to the high temperatures in the burner flame, the majority of the carbon dioxide contained in the feed gas is split into carbon monoxide and oxygen; Also, water is partially decomposed into hydrogen and oxygen. As a result, the oxygen required for maintaining the high temperatures in the flame area of the burner and in the combustion chamber is made available in part, so that the total demand for oxygen can be kept low. The hydrogen present in the product gas mixture of the combustion chamber is valuable in the further treatment of the gas mixture, since hydrogenation reactions are possible without the addition of foreign hydrogen. Furthermore, the gas components hydrogen and carbon monoxide can be used as synthesis gas. When burning a feed stream containing hydrogen sulfide exclusively with pure oxygen, the outer annular channel is continuously purged with a small amount of air to prevent the backflow of combustion gases from the combustion chamber via the annular channel.
Es ist die Aufgabe der vorliegenden Erfindung, das eingangs beschriebene Verfahren so zu führen, dass bei Schwefelwasserstoff enthaltendem Einsatzgas, das ausschließlich mit reinem Sauerstoff verbrennbar ist, auf die Zufuhr von Luft über den außen liegenden Ringkanal in die Brennkammer verzichtet werden kann.It is the object of the present invention to carry out the method described above in such a way that with feed gas containing hydrogen sulphide which can be burned exclusively with pure oxygen, it is possible to dispense with the supply of air via the outer annular channel into the combustion chamber.
Gelöst ist diese Aufgabe dadurch, dass der außen liegenden Ringkanal mit Inertgas, vorzugsweise Kohlendioxid gespült wird, um den Rückfluss von Verbrennungsgasen aus der Brennkammer zu unterbinden, so dass die Verbrennung ausschließlich mit reinem O2 (> 90 %) erfolgt.This object is achieved in that the outer annular channel is purged with inert gas, preferably carbon dioxide, to prevent the backflow of combustion gases from the combustion chamber, so that the combustion takes place exclusively with pure O 2 (> 90%).
In vorteilhafter weise lässt sich als Spülgas das bei Gasreinigungen anfallende Kohlendioxid, insbesondere das bei der Desorption von beladenem Methanol gewonnene Kohlendioxid verwenden.Advantageously, can be used as purge gas resulting from gas purification carbon dioxide, in particular the obtained during the desorption of laden methanol carbon dioxide.
Für die Durchführung des Verfahrens eignet sich insbesondere eine Vorrichtung, bei der die Brenner auf einem den Stützfeuerungsraum umgebenden Kreis oder Kreisen angebracht sind.For carrying out the method, a device is particularly suitable in which the burners are mounted on a circle or circles surrounding the supporting firing space.
Das erfindungsgemäße Verfahren wird nachstehend an Hand eines Ausführungsbeispiels in Verbindung mit dem in der Zeichnung wiedergegebenen Längsschnitt durch den Brennerbereich der Brennkammer näher erläutert:The method according to the invention will be explained in more detail below with reference to an exemplary embodiment in conjunction with the longitudinal section through the burner region of the combustion chamber shown in the drawing:
In die Feuerfestausmauerung (1) der Brennkammer (2) ist eine zwei Brenner (3) und eine zwischen diesen im gleichem Abstand zu jedem der Brenner (3) angeordnete Stützfeuerung (4) umfassende Brenneranlage eingebaut. Dem in jedem Brenner (3) axial verlaufend angeordneten Zentralrohr (5) wird über Leitung (6) reiner Sauerstoff zugeführt. Die Zentralrohre (5) sind jeweils von einem koaxial angebrachten Rohr (7) unter Bildung eines Ringraums umgeben, dem über Leitung (8) Schwefelwasserstoff enthaltendes Einsatzgas zugeführt wird. Die Einsatzgasrohre (7) sind von einem ko- axialen Ringkanal (9) umschlossen, dem über Leitungen (10) Kohlendioxid als Spülgas zugeführt wird. Dem axial verlaufenden Zentralrohr (11) der Stützfeuerung (4) wird über Leitung (12) Dampf und dem zwischen diesem Zentralrohr (11) und dem dieses koaxial umschließenden Rohr (13) bestehenden Ringraum Heizgas zugeführt. Über Leitung (14) wird die Zündflamme (15) mit Brenngas versorgt. Der besseren Übersichtlichkeit wegen werden bei dem zweiten Brenner die Bauteile nicht mit Bezugszahlen versehen.In the Feuerfestausmauerung (1) of the combustion chamber (2) a two burner (3) and a between these at the same distance to each of the burner (3) arranged Stützfeuerung (4) comprehensive burner system is installed. The central tube (5), which extends axially in each burner (3), is supplied with pure oxygen via line (6). The central tubes (5) are each surrounded by a coaxially mounted tube (7) to form an annulus to which via line (8) hydrogen sulfide-containing feed gas is supplied. The feed gas tubes (7) are covered by a coo- Enclosed axial annular channel (9), which is fed via lines (10) carbon dioxide as purge gas. The axially extending central tube (11) of the support (4) is supplied via line (12) steam and the between this central tube (11) and this coaxial enclosing tube (13) existing annulus heating gas. Via line (14), the ignition flame (15) is supplied with fuel gas. For better clarity, the components are not provided with reference numbers in the second burner.
In die Zentralrohre (5) der beiden Brenner (3) werden insgesamt 143 kmol/h Sauerstoff mit einer Temperatur von 40° C bei einem Druck von 2,4 bar[a] eingeleitet. Dem zwischen den Zentralrohren (5) und den diese umschließenden koaxial angebrachten Rohren (7) bestehenden Ringraum werden insgesamt 855 kmol/h Einsatzgas, enthaltend 35,1 mol % Schwefelwasserstoff und 63,1 mol % Kohlendioxid sowie 0,6 mol % Carbonylsulfid, 0.6 mol % Kohlenmonoxid und 0,5 mol % Wasserstoff mit einer Temperatur von 25° C bei einem Druck von 1 ,65 bar[a] zugeführt. Den die Rohre (7) koaxial umgebenden Ringkanälen (9) werden insgesamt 137 kmol/h Kohlendioxid aufgegeben. Am Ausgang der Brennkammer (2) treten 1118 kmol/h Gas mit einer Temperatur von 904° C bei einem Druck von 1 ,58 bar[a] aus. Das Gas besitzt folgende Zusammensetzung:In the central tubes (5) of the two burners (3) a total of 143 kmol / h of oxygen at a temperature of 40 ° C at a pressure of 2.4 bar [a] are introduced. A total of 855 kmol / h of feed gas containing 35.1 mol% of hydrogen sulfide and 63.1 mol% of carbon dioxide and 0.6 mol% of carbonyl sulfide, 0.6, are present between the central tubes (5) and the coaxially attached tubes (7) surrounding them mol% carbon monoxide and 0.5 mol% of hydrogen at a temperature of 25 ° C at a pressure of 1.65 bar [a] supplied. The pipes (7) coaxially surrounding annular channels (9) are given a total of 137 kmol / h of carbon dioxide. At the outlet of the combustion chamber (2) occur 1118 kmol / h of gas at a temperature of 904 ° C at a pressure of 1, 58 bar [a] from. The gas has the following composition:
4, 2 mol % H2S4, 2 mol% H 2 S
1 , 4 mol % SO2 1.4 mol% SO 2
26, 3 mol % H2O26, 3 mol% H 2 O.
0, 6 mol % COS0, 6 mol% COS
0, 1 mol % CS2 0.1 mol% CS 2
1 , 7 mol % CO 64, 3 mol % CO2 1.7 mol% CO 64, 3 mol% CO 2
0, 5 mol % H2 6, 8 mol % Sx (Sx = elementarer Schwefel). 0, 5 mol% H 2 6, 8 mol% S x (S x = elemental sulfur).

Claims

Patentansprüche: claims:
1. Verfahren zum Herstellen von Schwefelwasserstoff und Schwefeldioxid enthaltendem Prozessgas für das Claus-Verfahren aus Schwefelwasserstoff enthaltendem Einsatzgas, das mit reinem Sauerstoff bei Temperaturen im Bereich von 800 bis 1650° C mittels mehrerer in eine Brennkammer mündenden Brennern verbrannt wird, bei denen jeweils über ein Zentralrohr der reine Sauerstoff, über ein das Zentralrohr koaxial umgebendes Rohr das Einsatzgas und über einen das Einsatzgasrohr koaxial umgebenden Ringkanal Spülgas in die Brennkammer geleitet werden und in einen mit Abstand zu den Brennern angeordneten, mit der Brennkammer verbundenen Stützfeuerungsraum über ein Zentralrohr Wasserdampf, über ein das Zentralrohr koaxial umgebendes Rohr Heizgas und über ein das Heizgasrohr koaxial umgebendes äußeres Rohr Sauerwasserstrippgas eingespeist und die in dem Stützfeuerungsraum gebildeten Verbrennungsgase in die Brennkammer geführt werden, dadurch gekennzeichnet, dass als Spülgas Inertgas eingesetzt wird.1. A process for the production of hydrogen sulfide and sulfur dioxide-containing process gas for the Claus process from hydrogen sulfide-containing feed gas, which is burned with pure oxygen at temperatures in the range of 800 to 1650 ° C by means of several opening into a combustion chamber burners, each with a Central tube of pure oxygen, via a central tube surrounding the coaxial tube, the feed gas and a coaxially surrounding the feed tube annular channel purge gas are passed into the combustion chamber and arranged in a spaced from the burners, connected to the combustion chamber Stützfeuerungsraum via a central tube of water vapor, via a the central tube coaxially surrounding tube fuel gas and fed via a Heizgasrohr coaxially surrounding outer tube Sauerwasserstrippgas and the combustion gases formed in the Stützfeuerungsraum are guided into the combustion chamber, characterized in that the purge gas inert gas e is set.
2. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass als Spülgas CO2 eingesetzt wird.2. The method according to claim 1, characterized in that is used as purge gas CO 2 .
3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass als Spülgas in Gasreinigungen anfallendes CO2 verwendet wird.3. The method according to claim 2, characterized in that as a purge gas in gas purifications resulting CO 2 is used.
4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass als Spülgas das bei der Desorption von beladenem Methanol gewonnene CO2 als verwendet wird.4. The method according to claim 3, characterized in that the purge gas obtained in the desorption of loaded methanol CO 2 is used as.
5. Vorrichtung zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Brenner auf einem den Stützfeuerungsraum umgebenden Kreis oder Kreisen angeordnet sind. 5. Apparatus for carrying out the method according to one of claims 1 to 3, characterized in that the burners are arranged on a surrounding the Stützfeuerungsraum circle or circles.
EP10723912A 2009-04-28 2010-04-14 Method for producing process gas for the claus process Withdrawn EP2424816A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009018911A DE102009018911A1 (en) 2009-04-28 2009-04-28 Process for producing process gas for the Claus process
PCT/DE2010/000421 WO2010124671A1 (en) 2009-04-28 2010-04-14 Method for producing process gas for the claus process

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Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010230257A (en) * 2009-03-27 2010-10-14 Dainichi Co Ltd Combustion device
WO2013098328A1 (en) * 2011-12-27 2013-07-04 Shell Internationale Research Maatschappij B.V. Improved method for recovery of elemental sulphur
CA2843041C (en) 2013-02-22 2017-06-13 Anschutz Exploration Corporation Method and system for removing hydrogen sulfide from sour oil and sour water
US9364773B2 (en) 2013-02-22 2016-06-14 Anschutz Exploration Corporation Method and system for removing hydrogen sulfide from sour oil and sour water
US11440815B2 (en) 2013-02-22 2022-09-13 Anschutz Exploration Corporation Method and system for removing hydrogen sulfide from sour oil and sour water
US9708196B2 (en) 2013-02-22 2017-07-18 Anschutz Exploration Corporation Method and system for removing hydrogen sulfide from sour oil and sour water
JP5320517B1 (en) * 2013-04-08 2013-10-23 新日鉄住金エンジニアリング株式会社 Combustion apparatus, operating method thereof, and rotary hearth type heating furnace
SG10201705644UA (en) 2014-04-16 2017-08-30 Saudi Arabian Oil Co Improved sulfur recovery process for treating low to medium mole percent hydrogen sulfide gas feeds with btex in a claus unit
US10480792B2 (en) * 2015-03-06 2019-11-19 General Electric Company Fuel staging in a gas turbine engine
EP3946687B1 (en) 2019-05-17 2023-03-01 Saudi Arabian Oil Company Improving sulfur recovery operation with improved carbon dioxide recovery
CN114072220B (en) 2019-05-17 2024-06-18 沙特阿拉伯石油公司 Hydrogen sulfide-carbon dioxide membrane separation method using perfluorinated membrane
EP3946688A1 (en) 2019-05-17 2022-02-09 Saudi Arabian Oil Company Process of improved sulfur capture from a syngas mixture involving absorption and membrane diffusion steps
US11851625B2 (en) 2021-05-20 2023-12-26 Saudi Arabian Oil Company Reservoir management by controlling acid gas build-up in reservoir by partial CO2 removal processes

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3430015C1 (en) 1984-08-16 1986-05-07 Metallgesellschaft Ag, 6000 Frankfurt Apparatus for burning hydrogen sulphide-containing gas to produce a process gas for the Claus process
DE3735002A1 (en) 1987-10-16 1989-04-27 Metallgesellschaft Ag PROCESS FOR REMOVING SULFUR HYDROGEN FROM EXHAUST GAS
GB9419133D0 (en) * 1994-09-19 1994-11-09 Wickham Michael A method of forming sulphur
DE19718261A1 (en) * 1997-04-30 1998-11-05 Messer Griesheim Gmbh Method and device for converting hydrogen sulfide into elemental sulfur
GB9814064D0 (en) * 1998-06-29 1998-08-26 Boc Group Plc Partial combustion of hydrogen sulphide
US7311891B2 (en) * 2005-03-09 2007-12-25 Basf Catalysts Llc Process for the recovery of sulfur from Claus tail gas streams

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2010124671A1 *

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US8431105B2 (en) 2013-04-30
WO2010124671A1 (en) 2010-11-04

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