DE891249C - Process for the revitalization of adsorbents which have been used for the recovery of carbon disulfide from gases containing oxygen - Google Patents

Process for the revitalization of adsorbents which have been used for the recovery of carbon disulfide from gases containing oxygen

Info

Publication number
DE891249C
DE891249C DEA2027D DEA0002027D DE891249C DE 891249 C DE891249 C DE 891249C DE A2027 D DEA2027 D DE A2027D DE A0002027 D DEA0002027 D DE A0002027D DE 891249 C DE891249 C DE 891249C
Authority
DE
Germany
Prior art keywords
adsorbents
recovery
carbon disulfide
containing oxygen
revitalization
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.)
Expired
Application number
DEA2027D
Other languages
German (de)
Inventor
Paul Garbe
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.)
AKTIVKOHLE UNION VERWALTUNGS G
Original Assignee
AKTIVKOHLE UNION VERWALTUNGS G
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 AKTIVKOHLE UNION VERWALTUNGS G filed Critical AKTIVKOHLE UNION VERWALTUNGS G
Priority to DEA2027D priority Critical patent/DE891249C/en
Application granted granted Critical
Publication of DE891249C publication Critical patent/DE891249C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30Processes for preparing, regenerating, or reactivating
    • B01J20/34Regenerating or reactivating
    • B01J20/3441Regeneration or reactivation by electric current, ultrasound or irradiation, e.g. electromagnetic radiation such as X-rays, UV, light, microwaves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/02Separation 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
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00Carbon; Compounds thereof
    • C01B32/30Active carbon
    • C01B32/354After-treatment
    • C01B32/36Reactivation or regeneration
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00Carbon; Compounds thereof
    • C01B32/70Compounds containing carbon and sulfur, e.g. thiophosgene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Treating Waste Gases (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Description

Verfahren zurWiederbelebung vonAdsorbentien, die zur Rückgewinnung von Schwefelkohlenstoff aus sauerstofflialtigen Gasen gedient haben Zusatz zum Patent 748535 Gegenstand des Patents 748535 ist ein. Verfahren zur Rückgewinnung von Schwefelkohlenstoff aus Gasen mittels Adsorbentien, vorzugsweise Aktivkohle, dessen Besonderheit darin besteht, daß die Adsorbentien von Zeit zu Zeit mit Wasser oder alkalischen Lösungen ausgewaschen und hierdurch entsäuert werden. Bei Anwendung dieser Arbeitsweise hat sich ergeben, daß die Behandlung der nach mehrmaliger Beladung in ihrer Adsorptionsleistung geschwächten Adsorbentien mit Wasser oder den üblichen alkalischen Lösungen, wie z. B.Process for the revitalization of adsorbents required for recovery of carbon disulfide from oxygen-containing gases have served addendum to the patent 748535 The subject of the patent 748535 is a. Process for the recovery of carbon disulfide from gases by means of adsorbents, preferably activated carbon, its specialty therein consists that the adsorbents from time to time with water or alkaline solutions washed out and thereby deacidified. When using this way of working, show that the treatment of the adsorption capacity after repeated loading weakened adsorbents with water or the usual alkaline solutions, such as z. B.

Soda-, Bicarbonat- oder Pottaschelösungen, nicht in allen Fällen zu einer vollständigen Regeneration des Adsorptionsmittels führt. Bei der Adsorptionsbehandlung von schwefelkohlenstoffhaltigen Gasen kann nämlich die partielle Oxydation anderer Schwefelverbindungen, wie z. B. des Schwefelwasserstoffes, die zuweilen in den Gasen in sehr geringen Mengen (unter o,l Volumprozent) enthalten sind, zur Abscheidung von Spuren von Schwefel in dem Adsorptionsmittel führen, der durch Wasser oder die üblichen alkalischen Lösungen nicht gelöst wird und infolgedessen sich im Verlauf vieler Beladungen im Adsorptions- mittel anreichert und so zu einer Herabsetzung der Adsorptionsleistung führen kann.Soda, bicarbonate, or potash solutions, not in all cases a complete regeneration of the adsorbent leads. In the adsorption treatment Gases containing carbon disulfide can cause the partial oxidation of others Sulfur compounds, such as. B. of hydrogen sulfide, which is sometimes in the gases are contained in very small amounts (less than 0.1 percent by volume) for separation of traces of sulfur in the adsorbent caused by water or the usual alkaline solutions will not dissolve and as a result will be in the course many loads in the adsorption enriches medium and so to one Can lead to a reduction in the adsorption capacity.

In weiterer Ausgestaltung des Hauptverfahrens wurde gefunden, daß die Regenerationsbehandlung mit alkalischen Lösungen im vorstehend beschriebenen Falle auch dann vollständig verläuft, wenn man Lösungen verwendet, ,die ein Sulfids Ider Alkalien, z. B. ,des N;atri,ums oder Kahu'ns, oder Ammoniumsulfid einzeln oder in Koinfbination enthalten. In a further embodiment of the main process it was found that the regeneration treatment with alkaline solutions in the above The trap runs completely even if one uses solutions that contain a sulphide Ider alkalis, e.g. B., des N; atri, ums or Kahu'ns, or ammonium sulfide individually or included in combination.

In der Regel ist es nicht erforderlich, die Adsorbentien bei jeder Entsäuerung mit einer derartigen Lösung zu waschen, sondern es genügt, die Kohle wiederholt mit Wasser oder sulfidfreien alkalischen Lösungen nur zu entsäuern und jeweils erst nach mehreren, z. B. acht bis zehn Entsäuerungen eine Wäsche mit einer alkali oder ammonliumsulfidhaltigen Lösung, z. B. einer Na2S-haltigen Lösung, einzuschalten.Usually it is not necessary to use the adsorbents with everyone Deacidification with such a solution to wash, but it is enough to wash the coal Repeatedly only deacidify with water or sulfide-free alkaline solutions and only after several, z. B. eight to ten deacidifications a wash with one alkali or ammonium sulfide-containing solution, e.g. B. a Na2S-containing solution to switch on.

Es ist zweckmäßig, die Wäsche der Adsorbentien mit alkali- oder ammoniumsulfidhaltigen Lösungen in Gegenwart von geringen Mengen kaustischer oder kohlensaurer Alkalien auszuführen. It is advisable to wash the adsorbents with alkali or ammonium sulfide-containing Solutions in the presence of small amounts of caustic or carbonate alkalis to execute.

Hierdurch wird erreicht, daß von: der Kohle adsorbierte und festgehaltene Säurereste neutralisiert werden und so die Gewähr gegeben ist, daß die Entschwefelung glatt verläuft, ohne das ein Sulfildw verbrauch durch Säureeinwirkung eintritt.This ensures that: the carbon adsorbed and retained Acid residues are neutralized and so the guarantee is given that the desulfurization runs smoothly without the consumption of sulphide due to the action of acid.

Claims (2)

PATENTANSPRÜCHE: I. Verfahren zur Wiederbelebung von Adsorbentien, die zur Rückgewinnung von Schwefelkohlenstoff aus sauerstoffhaltigen Gasen nach Patent 748 535 gedient haben, dadurch gekennzeichnet, daß die Adsorbentien von Zeit zu Zeit mit Lösungen gewaschen werden, die ein Sulfid der Alkalien, z. B. ,des Natriums oder Kaliums oder Ammoniumsulfid einzeln oder in Kombination enthalten. PATENT CLAIMS: I. Process for revitalizing adsorbents, those for the recovery of carbon disulfide from gases containing oxygen Patent 748 535, characterized in that the adsorbents of time to be washed with solutions containing a sulphide of alkalis, e.g. B., of sodium or contain potassium or ammonium sulfide individually or in combination. 2. Verfahren nach Anspruch I, dadurch gekennzeichnet, daß Lösungen benutzt werden, die geringe Gehalte an kohlensaurem oder kaustischem Alkali aufweisen. 2. The method according to claim I, characterized in that solutions are used that have low levels of carbonate or caustic alkali.
DEA2027D 1943-11-14 1943-11-14 Process for the revitalization of adsorbents which have been used for the recovery of carbon disulfide from gases containing oxygen Expired DE891249C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA2027D DE891249C (en) 1943-11-14 1943-11-14 Process for the revitalization of adsorbents which have been used for the recovery of carbon disulfide from gases containing oxygen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA2027D DE891249C (en) 1943-11-14 1943-11-14 Process for the revitalization of adsorbents which have been used for the recovery of carbon disulfide from gases containing oxygen

Publications (1)

Publication Number Publication Date
DE891249C true DE891249C (en) 1953-09-28

Family

ID=6919778

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA2027D Expired DE891249C (en) 1943-11-14 1943-11-14 Process for the revitalization of adsorbents which have been used for the recovery of carbon disulfide from gases containing oxygen

Country Status (1)

Country Link
DE (1) DE891249C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1259845B (en) * 1960-12-14 1968-02-01 Pintsch Bamag Ag Process for the regeneration of activated carbon loaded with hydrogen sulphide and an organic solvent from exhaust air or oxygen-containing gases

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1259845B (en) * 1960-12-14 1968-02-01 Pintsch Bamag Ag Process for the regeneration of activated carbon loaded with hydrogen sulphide and an organic solvent from exhaust air or oxygen-containing gases

Similar Documents

Publication Publication Date Title
DE891249C (en) Process for the revitalization of adsorbents which have been used for the recovery of carbon disulfide from gases containing oxygen
DE1130552B (en) Process for regenerating washing liquors containing arsenic
DE1064479B (en) Process for removing hydrogen sulfide from gas mixtures, such as coke oven gas
DE478140C (en) Process for purifying gases from hydrogen sulfide
DE517001C (en) Process for the desulfurization of the extractants circulating during the ammonia water dephenolation
DE906216C (en) Process for regenerating active coals contaminated with sulfuric acid and sulfur
DE971061C (en) Process for cleaning the exhaust air from viscose plants
AT110257B (en) Process for the absorption of hydrogen sulfide and ammonia from gases with polythionates.
DE407875C (en) Production of sulfur, thiosulfates and sulfhydrates
DE816873C (en) Process for the desulphurization of gases
DE431307C (en) Removal of hydrogen sulfide from gases
DE847320C (en) Process for removing hydrogen sulfide from gases
DE471380C (en) Process for the purification of gases containing hydrogen sulphide
DE464822C (en) Removal of carbonic acid and hydrogen sulfide from industrial gases
DE536428C (en) Process for removing ammonia and hydrogen sulfide from gases
DE812249C (en) Process for de-acidifying gas water
DE475269C (en) Process for removing iron carbonyl from gases
DE716838C (en) Process for reviving cleaning compounds
DE740406C (en) Process for removing hydrogen sulfide and other impurities from gases, particularly carbon distillation gases
DE419522C (en) Production of sodium thiosulphate
DE715305C (en) Process for working up alkali phenolate solutions used for washing out carbon distillation gases
DE906973C (en) Process for the desulphurization of fuel gases
DE539317C (en) Process for the desulphurisation of gases containing hydrogen sulphide
DE380893C (en) Process for the production of alkali sulfides and hydrosulfides
DE471043C (en) Removal of hydrogen sulfide from gases