DE1279651B - Process for the recovery of carbon disulfide from gas and steam mixtures - Google Patents
Process for the recovery of carbon disulfide from gas and steam mixturesInfo
- Publication number
- DE1279651B DE1279651B DEP31296A DEP0031296A DE1279651B DE 1279651 B DE1279651 B DE 1279651B DE P31296 A DEP31296 A DE P31296A DE P0031296 A DEP0031296 A DE P0031296A DE 1279651 B DE1279651 B DE 1279651B
- Authority
- DE
- Germany
- Prior art keywords
- carbon disulfide
- washing
- recovery
- steam
- gas
- 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.)
- Pending
Links
Classifications
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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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/75—Multi-step processes
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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
- C01B32/00—Carbon; Compounds thereof
- C01B32/70—Compounds containing carbon and sulfur, e.g. thiophosgene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
-
- 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
- B01D53/02—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 adsorption, e.g. preparative gas chromatography
- B01D53/04—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 adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- 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
- B01D53/1468—Removing hydrogen sulfide
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Description
Verfahren zur Rückgewinnung von Schwefelkohlenstoff aus Gas- und Dampfgemischen Bei der Rückgewinnung von Lösemitteln, z. B.Process for the recovery of carbon disulfide from gas and steam mixtures When recovering solvents, e.g. B.
Schwefelkohlenstoff durch Adsorption an Aktivkohle, wird die beladene Aktivkohle mit Wasserdampf desorbiert und anschließend das Gemisch aus Wasser-und Lösemitteldampf kondensiert. Vor der Adsorption müssen unter Umständen aus dem Gemisch für die Aktivkohle schädliche Stoffe, z. B. Schwefelwasserstoff ausgewaschen werden. Manche der hierfür verwendeten Waschlösungen, wie z. B. Soda-Arsen-Lösungen, müssen zur vollen Wirksamkeit eine erhöhte Temperatur von etwa 40 bis 500 C besitzen und daher wegen der Abkühlung durch die zugeführte Luft und die Wasserverdampfung beim Waschprozeß vor der Rückführung in die Wäsche laufend aufgeheizt werden. Somit ist das gesamte Verfahren durch den für die Desorption bereitzustellenden Dampf und die Erhitzung der Waschlösung ziemlich wärmeaufwendig.Carbon disulfide by adsorption on activated carbon, becomes the loaded Activated charcoal is desorbed with steam and then the mixture of water and Solvent vapor condenses. Before the adsorption, it may be necessary to leave the mixture substances harmful to the activated carbon, e.g. B. hydrogen sulfide are washed out. Some of the washing solutions used for this, such as. B. Soda-arsenic solutions, must have an elevated temperature of about 40 to 500 C for full effectiveness and therefore because of the cooling by the air supplied and the evaporation of water during the Washing process must be heated continuously before being returned to the laundry. So is the entire process by the steam to be provided for the desorption and the heating of the washing solution is quite heat consuming.
Um eine derartige mit einer Wäsche kombinierte Rückgewinnung von Lösemitteln wirtschaftlicher zu gestalten, sieht die Erfindung vor, daß der Desorptionsdampf durch die im Waschprozeß abgekühlte Waschlösung über einen die diskontinuierlich anfallende und kontinuierlich abzugebende Wärme speichernden Wasserkreislauf indirekt gekühlt wird. Auf diese Weise wird für den Waschprozeß die Wärme der Desorptionsdämpfe nutzbar gemacht und entfällt der zusätzliche Wärmeaufwand für die Wäsche oder zumindest ein großer Teil desselben. To such a combined with a wash recovery of To make solvents more economical, the invention provides that the desorption steam by the washing solution cooled in the washing process via one of the discontinuous Accumulating and continuously releasing heat-storing water cycle indirectly is cooled. In this way, the heat of the desorption vapors is used for the washing process made usable and eliminates the additional heat input for laundry or at least a large part of the same.
Das Verfahren der Erfindung ist nachstehend an Hand der in der Zeichnung dargestellten Anlage näher beschrieben, wobei als Beispiel eine Aktivkohleanlage zur Rückgewinnung von CS2 und eine Soda-Arsen-Wäsche gewählt sind. The method of the invention is described below with reference to that in the drawing described system in more detail, with an activated carbon system as an example for the recovery of CS2 and a soda-arsenic wash are selected.
Aus den Adsorbern 1, in denen das CS2 vorher in bekannter Weise durch Aktivkohle adsorbiert wurde, wird mittels Wasserdampf das CS2 desorbiert. Die Desorptionsdämpfe werden in dem Kondensator 2 so weit kondensiert und gekühlt, wie durch die für die Wäsche ausgenutzte Wärme möglich. Der nicht kondensierte Anteil gelangt in den Kondensator3, der kondensierte Teil in den Nachkühler 4, die beide mit Frischwasser aus der Leitung 12 in bekannter Weise betrieben werden. Das Kondensat wird in bekannter Weise einem Abscheider 5 zugeführt, in dem Wasser und CS2 getrennt werden. From the adsorbers 1, in which the CS2 was previously carried out in a known manner Activated charcoal has been adsorbed, the CS2 is desorbed by means of steam. The desorption vapors are condensed and cooled in the condenser 2 as far as by the for the Utilized heat possible for laundry. The non-condensed part goes into the condenser3, the condensed part in the aftercooler 4, both with fresh water from the line 12 can be operated in a known manner. The condensate is in a known manner a Separator 5 supplied, in which water and CS2 are separated.
Dem Kondensator 2 wird zur Kühlung erfindungsgemäß als Wärmeübertragungsmittel Wasser, das seine Wärme im Kreislauf an die Lauge oder an einen anderen, in die Vorwäsche des Gasgemisches einzuführenden Stoff abgibt, zugeführt. Im hier dargestellten Fall erfolgt die Zuführung des Kreislaufwassers zum Kondensator 2 aus einem Behälter 6 über eine Pumpe 7, die durch die Eintrittstemperatur der von den Adsorbern 1 zu dem Kondensator 2 gehenden Dämpfe eine und ausgeschaltet wird. Das erwärmte Wasser gelangt dann in einen Zwischenbehälter 8, von dem aus es über eine kontinuierlich arbeitende Pumpe 9 dem Laugeerhitzer 10 zugeführt wird. Hier gibt es seine Wärme an die im Kreislauf 11 zugeführte Lauge ab, um dann in den Behälter 6 zurückzukehren. Statt der Lauge kann auch der Waschanlage zuzuführende Luft oder Gas erwärmt werden. According to the invention, the condenser 2 is used as a heat transfer medium for cooling Water that circulates its heat to the lye or to another, into the Pre-washing of the gas mixture releases substance to be introduced, supplied. Im shown here In this case, the circulating water is fed to the condenser 2 from a container 6 via a pump 7, which by the inlet temperature of the adsorbers 1 to the condenser 2 passing vapors on and off. The heated water then arrives in an intermediate container 8, from which it passes through a continuously working pump 9 is supplied to the liquor heater 10. Here is its warmth to the lye supplied in the circuit 11 in order to then return to the container 6. Instead of the lye, air or gas to be supplied to the washing system can also be heated.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP31296A DE1279651B (en) | 1963-03-08 | 1963-03-08 | Process for the recovery of carbon disulfide from gas and steam mixtures |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP31296A DE1279651B (en) | 1963-03-08 | 1963-03-08 | Process for the recovery of carbon disulfide from gas and steam mixtures |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1279651B true DE1279651B (en) | 1968-10-10 |
Family
ID=606024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEP31296A Pending DE1279651B (en) | 1963-03-08 | 1963-03-08 | Process for the recovery of carbon disulfide from gas and steam mixtures |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1279651B (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB283508A (en) * | 1927-01-12 | 1929-06-11 | Naamlooze Vennootschap Norit V | Process and apparatus for the recovery of gases or vapours taken up by adsorbents |
-
1963
- 1963-03-08 DE DEP31296A patent/DE1279651B/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB283508A (en) * | 1927-01-12 | 1929-06-11 | Naamlooze Vennootschap Norit V | Process and apparatus for the recovery of gases or vapours taken up by adsorbents |
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