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 oxygenInfo
- 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
Links
Classifications
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- 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
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3441—Regeneration or reactivation by electric current, ultrasound or irradiation, e.g. electromagnetic radiation such as X-rays, UV, light, microwaves
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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
- B01D53/02—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
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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
- C01B32/30—Active carbon
- C01B32/354—After-treatment
- C01B32/36—Reactivation or regeneration
-
- 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
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)
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)
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 |
-
1943
- 1943-11-14 DE DEA2027D patent/DE891249C/en not_active Expired
Cited By (1)
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 |
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