DE3717556A1 - METHOD FOR REMOVING SULFUR COMPOUNDS FROM CO (ARROW DOWN), 2 (ARROW DOWN) GASES - Google Patents
METHOD FOR REMOVING SULFUR COMPOUNDS FROM CO (ARROW DOWN), 2 (ARROW DOWN) GASESInfo
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- DE3717556A1 DE3717556A1 DE19873717556 DE3717556A DE3717556A1 DE 3717556 A1 DE3717556 A1 DE 3717556A1 DE 19873717556 DE19873717556 DE 19873717556 DE 3717556 A DE3717556 A DE 3717556A DE 3717556 A1 DE3717556 A1 DE 3717556A1
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- ethane
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
- C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
- C10K1/12—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors
- C10K1/14—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors organic
- C10K1/143—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors organic containing amino groups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
- B01D53/1462—Removing mixtures of hydrogen sulfide and carbon dioxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1487—Removing organic compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1493—Selection of liquid materials for use as absorbents
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- 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
- C01B17/16—Hydrogen sulfides
- C01B17/167—Separation
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- 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
- C01B3/50—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
- C01B3/52—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with liquids; Regeneration of used liquids
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/11—Purification; Separation; Use of additives by absorption, i.e. purification or separation of gaseous hydrocarbons with the aid of liquids
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- 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
- Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Description
Die Erfindung betrifft die selektive Entfernung von Schwefelwasserstoff und anderen schwefelhaltigen Verbindungen, wie COS, CS2, Mercaptane und Sulfide, aus Erdgas und Synthesegasen, welche einen bestimmten CO2- Gehalt aufweisen. Die schwefelhaltigen Verbindungen müssen für verschiedene industrielle Anwendungsgebiete aus Erdgas und Synthesegasen vollständig oder soweit als irgendmöglich entfernt werden, wobei sich einige Probleme ergeben.The invention relates to the selective removal of hydrogen sulfide and other sulfur-containing compounds, such as COS, CS 2 , mercaptans and sulfides, from natural gas and synthesis gases which have a specific CO 2 content. For various industrial applications, the sulfur-containing compounds have to be removed completely or as far as possible from natural gas and synthesis gases, with some problems.
Die Vorschriften hinsichtlich des Schwefelwasserstoff- Gehalts in Erdgas sind außerordentlich streng (2 bis 5 ppm), während der Anteil an CO2, welches in den meisten Fällen als inerte Substanz anzusehen ist, nicht so kritisch ist und zwischen 0,5 und 3% liegen kann. Bei geringen CO2-Gehalten eines Gases ist es vorteilhaft, nur H2S zu entfernen, um die Kosten für die Entfernung von CO2 einzusparen. Erdgas verschiedener Provenienz und rohe Synthesegase enthalten häufig geringe Anteile an H2S und große Mengen an CO2, so daß es in der sich an die Gasreinigung anschließenden Claus-Anlage zur Schwefelgewinnung zu Problemen kommen kann, wenn durch Anwendung nicht-selektiver Verfahren zur Abscheidung der sauren Gase das Erdgas sehr wenig Schwefelwasserstoff enthält.The regulations regarding the hydrogen sulfide content in natural gas are extremely strict (2 to 5 ppm), while the proportion of CO 2 , which in most cases is to be regarded as an inert substance, is not so critical and is between 0.5 and 3% can. With a low CO 2 content of a gas, it is advantageous to remove only H 2 S in order to save the costs of removing CO 2 . Natural gas of various origins and raw synthesis gases often contain small amounts of H 2 S and large amounts of CO 2 , so that problems can arise in the Claus plant for sulfur recovery which follows the gas cleaning, if non-selective methods of separation are used the acidic gases, the natural gas contains very little hydrogen sulfide.
All diese Schwierigkeiten lassen sich durch selektive Gaswäsche vermeiden. Eine Methode zur Reinigung von Abgasen aus Claus-Anlagen ist die Reduktion von restlichen Schwefelverbindungen zu Schwefelwasserstoff, die Abtrennung von Schwefelwasserstoff von den inerten Kohlendioxid enthaltenden Bestandteilen und Rückleiten eines konzentrierten Schwefelwasserstoffstroms in die Claus-Anlage. Hierfür ist ein selektives Verfahren essentiell, da sonst eine Austragung von CO2 aus dem System nicht möglich ist.All of these difficulties can be avoided by selective gas scrubbing. One method for cleaning exhaust gases from Claus plants is the reduction of residual sulfur compounds to hydrogen sulfide, the separation of hydrogen sulfide from the inert carbon dioxide-containing components and the return of a concentrated hydrogen sulfide stream to the Claus plant. A selective process is essential for this, since otherwise it is not possible to remove CO 2 from the system.
Die selektive Trennung von Schwefelwasserstoff und Kohlendioxid ist im Hinblick auf ihren sauren Charakter schwierig. Bisher erfolgte die Trennung durch eine Absorptions- und eine Regenerationsstufe. In der Absorptionsstufe wird Schwefelwasserstoff und andere Schwefelverbindungen aus dem Rohgas mit Hilfe einer regenerierten Waschlösung entfernt. Die die Absorptionsstufe verlassende Waschlösung wird in der Regenerationsstufe mit Dampf oder einem Inertgas abgestreift und die so regenerierte Lösung in die Absorptionsstufe rückgeleitet.The selective separation of hydrogen sulfide and carbon dioxide is difficult in terms of its acidic character. So far, the separation was done by an absorption and a regeneration level. In the absorption stage Hydrogen sulfide and other sulfur compounds from the Raw gas removed using a regenerated scrubbing solution. The washing solution leaving the absorption stage is in the regeneration stage with steam or an inert gas and the solution thus regenerated into the absorption stage returned.
Im allgemeinen bereitet die Regenerationsstufe keine Probleme, während die Absorptionsstufe zu Schwierigkeiten führen kann. So ist die Entfernung unerwünschter Verbindungen mit einer Wärmeentwicklung verbunden, welche die Waschlösung erwärmt, gleichbedeutend mit einer Herabsetzung ihres Aufnahmevermögens für saure Gase. Damit wird das Volumen der im Kreislauf benötigten Waschlösung groß.Generally the regeneration stage prepares no problems, while the absorption level is too difficult can lead. So is the removal of unwanted connections associated with heat development, which the Wash solution warmed, tantamount to a reduction of their absorption capacity for acid gases. So that is the volume of the washing solution required in the circuit is large.
Eine Möglichkeit - auch wenn sie in der Praxis kaum eingesetzt wird - für die Herabsetzung des Volumens an Waschlösung der Amin-Anlagen im Umlauf besteht darin, sie während der Gaswäsche das eine oder andere Mal zu kühlen, indem man sie an entsprechender Stelle aus dem Absorberturm ableitet und nach dem Kühlen auf die unmittelbar darunter befindliche Platte wieder einführt.A possibility - even if it is hardly used in practice will - for reducing the volume of washing solution Amine plants in circulation consist of them during gas scrubbing to cool one time or another by turning them on corresponding place from the absorber tower and after cooling on the plate immediately below reintroduced.
Bei einer Füllkörper-Kolonne sind die konstruktiven Notwendigkeiten für das Kühlen sehr viel komplexer, da es für jedes Kühlen notwendig ist, in die Kolonne eine Stapelplatte einzuführen, um die Waschlösung aufzufangen und abzuleiten. Häufig werden diese Umstände und Kosten hingenommen, weil eine Füllkörper-Kolonne immer noch sehr viel billiger ist als ein Plattenabsorber (Bodenkolonne).The structural requirements are for a packed column for cooling much more complex since it is for Every cooling is necessary, a stacking plate in the column to catch the wash solution and to derive. These circumstances and costs are often accepted, because a packed column is still very much is cheaper than a plate absorber (bottom column).
Es wurde nun erfindungsgemäß festgestellt, daß obige Probleme der selektiven Trennung von Schwefelwasserstoff und/oder anderen Schwefelverbindungen (COS, CS2, Mercaptane) von Kohlendioxid durch bestimmte tertiäre und/oder sterisch gehinderte primäre und/oder sekundäre Amine für die Waschflüssigkeit gelöst werden können. Diese befinden sich in wässriger und/oder organischer Lösung und diese Lösung der Amine wird als Waschlösung bezeichnet.It has now been found according to the invention that the above problems of the selective separation of hydrogen sulfide and / or other sulfur compounds (COS, CS 2 , mercaptans) from carbon dioxide can be solved by certain tertiary and / or sterically hindered primary and / or secondary amines for the washing liquid. These are in aqueous and / or organic solution and this solution of the amines is called a washing solution.
Als tertiäre Amine sind erfindungsgemäß brauchbar Verbindungen, in denen die drei Wasserstoffatome des Ammoniaks durch Alkyl- und/oder Alkanolgruppen substituiert sind. Die Alkylgruppen sind solche mit 1 bis 4 C-Atomen, die linear oder verzweigt sein können. Bei den Alkanolgruppen handelt es sich um solche mit 2 bis 5 C-Atomen, die auch linear oder verzweigt sein können. Es sollen in diesen nicht mehr wie zwei Hydroxygruppen vorliegen, die an beliebigen Kohlenstoffatomen gebunden sind. Von den drei Substituenten der tertiären Amine muß zumindest eine eine Alkanolgruppe sein.Compounds which can be used according to the invention as tertiary amines are in which the three hydrogen atoms of ammonia substituted by alkyl and / or alkanol groups are. The alkyl groups are those with 1 to 4 carbon atoms, which can be linear or branched. With the alkanol groups are those with 2 to 5 carbon atoms, which also can be linear or branched. It shouldn't be in these there are more like two hydroxy groups attached to any Carbon atoms are bound. Of the three substituents the tertiary amines must have at least one alkanol group be.
Bevorzugte tertiäre Amine sind: Methyldiethanolamin, Dimethylethanolamin, Ethyldiethanolamin, Diethylethanolamin, Methyldiisopropylamin, Diisopropylethanolamin, N,N- Dimethyl-2-amino-2-methylpropan-1-ol, N,N-Dimethyl-2-amino- 2-methylbutan-1-ol, Propyldiisopropanolamin, 2-Dimethylamino- 2-methyl-1,3-propandiol, 2-Methyl-2-(methyl-β-hydroxyethylamino)- 1-propanol, N,N-Dimethyl-2-amino-propan-1-ol.Preferred tertiary amines are: methyldiethanolamine, Dimethylethanolamine, ethyldiethanolamine, diethylethanolamine, Methyldiisopropylamine, diisopropylethanolamine, N, N- Dimethyl-2-amino-2-methylpropan-1-ol, N, N-dimethyl-2-amino- 2-methylbutan-1-ol, propyldiisopropanolamine, 2-dimethylamino 2-methyl-1,3-propanediol, 2-methyl-2- (methyl-β-hydroxyethylamino) - 1-propanol, N, N-dimethyl-2-aminopropan-1-ol.
Von den erfindungsgemäß zu verwendenden sterisch gehinderten primären und sekundären Aminen ist auf die Diaminoether zu verweisen, in denen eine oder beide Aminogruppen tertiär sein können. Es sind jedoch auch Aminoalkohole möglich, die gegebenenfalls Ethergruppen aufweisen.Of the sterically hindered to be used in the present invention primary and secondary amines is towards the diaminoethers refer to in which one or both amino groups are tertiary can. However, amino alcohols are also possible, if appropriate Have ether groups.
Bevorzugt verwendete sterisch gehinderte Amine sind: 1,2- Bis-(tert.-butylaminoethoxy)-ethan, 1-(Pyroolidinylethoxy)- 2-(tert.-butylaminoethoxy)-ethan, tert.-Butylaminoethoxyethanol, 2-(2-tert.-Butylamino)-propoxyethanol, 2-(2-Isopropylamino)- propoxyethanol, tert.-Amylaminoethoxyethanol, (1-Methyl-1-ethylpropylamino)ethoxyethanol, N-Methyl-N-tert.- butylaminoethoxyethanol, 2-(N-Isopropyl-N-methylamino)- propoxyethanol, 3-Aza-2,2,3-trimethyl-1,6-hexandiol, tert.- Butylaminoethanol, 2-tert.-Butylamino-1-propanol, 2-Isopropylamino- 1-propanol, (3-tert.-Butylamino)-n-butanol, 3-Aza- 2,2-dimethyl-1,6-hexandiol, 3-tert.-Butylamino-1-propanol, Bis(tert.-butylaminoethyl)-ether, 1,2-Bis-(tert.-butylaminoethoxy)- ethan, Bis-(2-isopropylaminopropyl)-ether, 1,2-Bis- (pyrrolidinylethoxy)ethan, 1,2-Bis-(3-pyrrolidinyl-n-propoxy)- ethan. Bis-(N-pyrrolidinylethyl)-ether, 1,2-Bis-(pyperidinylethoxy)- ethan, 1-(Pyrrolidinylethoxy)-2-(tert.-butylaminoethoxy)- ethan.Sterically hindered amines which are preferably used are: Bis (tert-butylaminoethoxy) ethane, 1- (pyroolidinylethoxy) - 2- (tert-butylaminoethoxy) ethane, tert-butylaminoethoxyethanol, 2- (2-tert-butylamino) propoxyethanol, 2- (2-isopropylamino) - propoxyethanol, tert-amylaminoethoxyethanol, (1-methyl-1-ethylpropylamino) ethoxyethanol, N-methyl-N-tert.- butylaminoethoxyethanol, 2- (N-isopropyl-N-methylamino) - propoxyethanol, 3-aza-2,2,3-trimethyl-1,6-hexanediol, tert.- Butylaminoethanol, 2-tert-butylamino-1-propanol, 2-isopropylamino 1-propanol, (3-tert-butylamino) -n-butanol, 3-aza- 2,2-dimethyl-1,6-hexanediol, 3-tert-butylamino-1-propanol, Bis (tert-butylaminoethyl) ether, 1,2-bis (tert-butylaminoethoxy) - ethane, bis (2-isopropylaminopropyl) ether, 1,2-bis (pyrrolidinylethoxy) ethane, 1,2-bis (3-pyrrolidinyl-n-propoxy) - ethane. Bis (N-pyrrolidinylethyl) ether, 1,2-bis (pyperidinylethoxy) - ethane, 1- (pyrrolidinylethoxy) -2- (tert-butylaminoethoxy) - ethane.
Es können auch Amingemische verwendet werden.Amine mixtures can also be used.
Als Lösungsmittel für die Amine eignen sich z. B. N-Methyl-3- morpholon, Sulfolan, N-Methyl-pyrrolidon, N-Phenylmorpholin, N,N-Dimethylimidazolydin-2-on, Methanol, N-Methylimidazol, n-Butanol. Es können auch Lösungsmittelgemisch verwendet werden.Suitable solvents for the amines are, for. B. N-methyl-3- morpholon, sulfolane, N-methyl-pyrrolidone, N-phenylmorpholine, N, N-dimethylimidazolydin-2-one, methanol, N-methylimidazole, n-butanol. Mixed solvents can also be used will.
Die Rücklauflösungen bestehen vorzugsweise aus 20 bis 96 Gew.-% Amin(e), vorzugsweise 20 bis 90 Gew.-%, insbesondere 30 bis 50 Gew.-%, und 79 bis 2 Gew.-% Wasser, vorzugsweise 22 bis 4 Gew.-%, und gegebenenfalls organische Lösungsmittel auf 100%.The return solutions preferably consist of 20 to 96% by weight. Amine (s), preferably 20 to 90% by weight, in particular 30 to 50% by weight, and 79 to 2% by weight of water, preferably 22 to 4 wt .-%, and optionally organic solvents to 100%.
Wesentlich bei dem erfindungsgemäßen Verfahren ist der Absorptionsteil und der Regenerationsteil. Der Absorptionsteil in der Absorbereinheit dient zur Aufnahme der im Erdgas oder Synthesegas enthaltenen Schwefelverbindungen durch die Waschlösung, während in dem Regenerationsteil die Waschlösung in der Regenerationseinheit durch Abstreifen mit Dampf oder einem Inertgas regeneriert wird.What is essential in the method according to the invention is Absorption part and the regeneration part. The absorption part in the absorber unit is used to hold the Natural gas or synthesis gas containing sulfur compounds through the washing solution while in the regeneration part wipe the washing solution in the regeneration unit is regenerated with steam or an inert gas.
Bei dem erfindungsgemäßen Verfahren wird das den Absorber verlassende Gas mit der regenerierten Waschlösung gemischt, in einem Wärmeaustauscher das Gemisch abgekühlt und schließlich das Reingas aus der Waschlösung abgetrennt, welch letztere wieder in den Kopf des Absorbers eingespeist wird.In the method according to the invention, this becomes the absorber leaving gas mixed with the regenerated scrubbing solution, in a heat exchanger the mixture is cooled and finally the clean gas is separated from the scrubbing solution, the latter is fed back into the head of the absorber.
Bei dem Absorber kann es sich um einen Plattenabsorber oder eine Füllkörper-Kolonne handeln; auch kann es sich um ein Kühlaggregat handeln, wobei der zusätzliche Vorteil bei einer Füllkörper-Kolonne auftritt, daß die oben erwähnten konstruktiven Maßnahmen nicht erforderlich sind.The absorber can be a plate absorber or act a packed column; it can also be act as a cooling unit, with the added benefit in a packed column occurs that the above mentioned constructive measures are not required.
Um eine gute Berührung des Gases mit der Waschlösung im Kopf des Absorbers zu erreichen, kann diese in den aufsteigenden Gasstrom zerstäubt werden oder der Gasstrom gelangt in einen Ejektor, wobei das Fördermedium die Waschlösung ist. Eine weitere Möglichkeit besteht in der Anwendung eines Venturi-Wäschers.To ensure good contact of the gas with the washing solution in the head of the absorber can be reached in the ascending order Gas stream are atomized or the gas stream gets into an ejector, the conveying medium being the washing solution is. Another possibility is the application a Venturi washer.
Das erfindungsgemäße Verfahren eignet sich besonders zur selektiven Entfernung von Schwefelwasserstoff und zumindest einer weiteren Schwefelverbindung, wie COS, CS2 und Mercaptane.The process according to the invention is particularly suitable for the selective removal of hydrogen sulfide and at least one further sulfur compound, such as COS, CS 2 and mercaptans.
Die Erfindung wird an folgenden Beispielen weiter erläutert.The invention is further illustrated by the following examples.
Es wurde ein Gas mit einem Druck von 63,8 bar und einer Temperatur von 21°C bei einer Strömungsgeschwindigkeit von 19 289,5 kmol/h, enthaltend 1,6 Vol-% H2S, 12,5 Vol-% CO2, 85,864 Vol-% CH4, 0,017 Vol-% COS und 0,019 Vol-% CH3SH nach dem erfindungsgemäßen Verfahren gereinigt.It became a gas with a pressure of 63.8 bar and a temperature of 21 ° C at a flow rate of 19 289.5 kmol / h, containing 1.6 vol% H 2 S, 12.5 vol% CO 2 , 85.864% by volume of CH 4 , 0.017% by volume of COS and 0.019% by volume of CH 3 SH were purified by the process according to the invention.
Bei dem Beispiel 1 diente als Waschlösung eine wässrige Lösung tertiärer Amine und bei dem Beispiel 2 eine organische Lösung der tertiären Amine. In beiden Beispielen wurde eine Kühlanlage für das Abkühlen der regenerierten Waschlösung im Gemisch mit dem aus dem Absorber über den Kopf austretenden Gas sowie ein Plattenabsorber mit 7 theoretischen Böden angewendet. Die Ergebnisse, einschließlich der Arbeitsbedingungen sind in der Tabelle zusammengefaßt.In Example 1, an aqueous solution was used as the washing solution tertiary amines and in Example 2 an organic solution of tertiary amines. In both examples, a cooling system was used for cooling the regenerated washing solution in a mixture with that from the absorber gas escaping over the head and a plate absorber with 7 theoretical Soils applied. The results, including working conditions are summarized in the table.
Obiges Rohgas wurde in Beispiel 3 mit der wässrigen Lösung des Beispiels 1 und bei Beispiel 4 mit der organischen Lösung des Beispiels 2 behandelt, und zwar in einer Absorptionskolonne mit 8 theoretischen Böden und 2 Zwischenkühlern, ohne daß jedoch das den Absorber verlassende Gas mit der regenerierten Waschlösung gemischt wurde. Arbeitsbedingungen und Versuchsergebnisse sind in der folgenden Tabelle enthalten. The above raw gas was in Example 3 with the aqueous solution of Example 1 and in Example 4 with the organic solution of Example 2 treated, in an absorption column with 8 theoretical shelves and 2 intercoolers, without that, however, the gas leaving the absorber with the regenerated Wash solution was mixed. Working conditions and Test results are shown in the following table.
Aus der Tabelle ergibt sich, daß bei dem erfindungsgemäßen Verfahren das umlaufende Volumen an Waschlösung und damit auch der Aufwand herabgesetzt werden kann.The table shows that in the inventive Process the circulating volume of washing solution and thus the effort can also be reduced.
1 mio kcal = 0,00116 : 1000
1160 kW/h1 million kcal = 0.00116: 1000
1160 kW / h
Claims (8)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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IT20757/86A IT1191805B (en) | 1986-06-11 | 1986-06-11 | PROCESS FOR SELECTIVE REMOVAL OF SULPHIDIC ACID |
Publications (2)
Publication Number | Publication Date |
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DE3717556A1 true DE3717556A1 (en) | 1987-12-17 |
DE3717556C2 DE3717556C2 (en) | 1994-04-28 |
Family
ID=11171618
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3717556A Revoked DE3717556C2 (en) | 1986-06-11 | 1987-05-25 | Process for the removal of sulfur compounds from gases containing CO¶2¶ |
Country Status (7)
Country | Link |
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JP (1) | JPS62292888A (en) |
DE (1) | DE3717556C2 (en) |
GB (1) | GB2191419B (en) |
IT (1) | IT1191805B (en) |
NO (1) | NO872369L (en) |
NZ (1) | NZ220366A (en) |
SE (1) | SE8702301L (en) |
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WO2001005488A1 (en) * | 1999-07-15 | 2001-01-25 | Basf Aktiengesellschaft | Method for removing mercaptans from fluid fluxes |
FR2848218A1 (en) * | 2002-12-10 | 2004-06-11 | Inst Francais Du Petrole | Method of treating a natural gas containing hydrogen sulfide by placing it in contact successively with two solvents containing an amine to remove the hydrogen sulfide and water respectively |
WO2017055192A2 (en) | 2015-09-29 | 2017-04-06 | Basf Se | Method for the selective removal of hydrogen sulfide |
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JP2895325B2 (en) * | 1992-09-16 | 1999-05-24 | 関西電力株式会社 | Method for removing carbon dioxide in flue gas |
US6689332B1 (en) | 1992-09-16 | 2004-02-10 | The Kansai Electric Power Co, Inc. | Process for removing carbon dioxide from combustion gases |
EP0827772A3 (en) * | 1994-03-18 | 1998-04-15 | The Kansai Electric Power Co., Inc. | Method for the removal of carbon dioxide and hydrogen sulfide from a gas containing these gases |
US5861051A (en) * | 1996-03-06 | 1999-01-19 | Huntsman Petrochemical Corporation | Process for removing carbon dioxide from gas mixture |
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KR20120019511A (en) | 2003-03-21 | 2012-03-06 | 다우 글로벌 테크놀로지스 엘엘씨 | Improved composition and method for removal of carbonyl sulfide from acid gas containing same |
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- 1987-05-21 GB GB8712025A patent/GB2191419B/en not_active Expired - Fee Related
- 1987-05-25 DE DE3717556A patent/DE3717556C2/en not_active Revoked
- 1987-06-02 SE SE8702301A patent/SE8702301L/en not_active Application Discontinuation
- 1987-06-05 NO NO872369A patent/NO872369L/en unknown
- 1987-06-11 JP JP62144203A patent/JPS62292888A/en active Pending
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EP0087856A1 (en) * | 1982-01-18 | 1983-09-07 | Exxon Research And Engineering Company | A process for the removal of H2S from gaseous mixtures using diaminoethers |
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WO2001005488A1 (en) * | 1999-07-15 | 2001-01-25 | Basf Aktiengesellschaft | Method for removing mercaptans from fluid fluxes |
US6740230B1 (en) | 1999-07-15 | 2004-05-25 | Basf Aktiengesellschaft | Method for removing mercaptans from fluid fluxes |
FR2848218A1 (en) * | 2002-12-10 | 2004-06-11 | Inst Francais Du Petrole | Method of treating a natural gas containing hydrogen sulfide by placing it in contact successively with two solvents containing an amine to remove the hydrogen sulfide and water respectively |
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WO2017055192A2 (en) | 2015-09-29 | 2017-04-06 | Basf Se | Method for the selective removal of hydrogen sulfide |
Also Published As
Publication number | Publication date |
---|---|
GB2191419B (en) | 1990-04-25 |
GB2191419A (en) | 1987-12-16 |
DE3717556C2 (en) | 1994-04-28 |
NO872369D0 (en) | 1987-06-05 |
JPS62292888A (en) | 1987-12-19 |
GB8712025D0 (en) | 1987-06-24 |
SE8702301L (en) | 1987-12-12 |
NO872369L (en) | 1987-12-14 |
IT1191805B (en) | 1988-03-23 |
NZ220366A (en) | 1990-07-26 |
IT8620757A0 (en) | 1986-06-11 |
IT8620757A1 (en) | 1987-12-11 |
SE8702301D0 (en) | 1987-06-02 |
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