DE387445C - Process for the rejuvenation of sulfur-containing absorption carbon - Google Patents

Process for the rejuvenation of sulfur-containing absorption carbon

Info

Publication number
DE387445C
DE387445C DEB94275D DEB0094275D DE387445C DE 387445 C DE387445 C DE 387445C DE B94275 D DEB94275 D DE B94275D DE B0094275 D DEB0094275 D DE B0094275D DE 387445 C DE387445 C DE 387445C
Authority
DE
Germany
Prior art keywords
sulfur
rejuvenation
coal
containing absorption
absorption carbon
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
DEB94275D
Other languages
German (de)
Inventor
Dr Felix Lindner
Dr Wilh Meiser
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Priority to DEB94275D priority Critical patent/DE387445C/en
Application granted granted Critical
Publication of DE387445C publication Critical patent/DE387445C/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Industrial Gases (AREA)
  • Treating Waste Gases (AREA)

Description

Verfahren zur Auffrischung schwefelhaltiger Absorptionskohle. Die Wiederauffrischung von aktiver Kohle, z. B. aktiver Holzkohle, welche zum Entschwefeln schwefelhaltiger Gase benutzt wurde, ist auf verschiedenen Wegen versucht worden, ohne daß bisher eine technisch vollkommen befriedigende Lösung bekannt geworden ist. Es wurde nun gefunden, daß die schwefelhaltige Kohle durch einfaches Abrösten, wobei der Schwefel als schweflige Säure gewonnen wird, so weit vom Schwefel befreit werden kann, daß sie direkt wieder zur Reinigung der Gase verwendbar ist. Man kann dabei leicht vermeiden, daß gleichzeitig nennenswerte Mengen der Kohle mitverbrennen, indem man durch vorsichtige Regelung von Temperatur und Luftzufuhr ein Erglühen der Kohle verhindert. Zweckmäßig arbeitet man in einer rotierenden Trommel, durch welche ein langsamer Luftstrom gesaugt oder geblasen wird. Wenn man an einer Stelle so weit erhitzt, daß der Schwefel ins Brennen kommt, so genügt die entstehende Wärme zunächst, um die Verbrennung weiter fortzusetzen, und es läßt sich so der größte Teil des Schwefels ohne wesentliche äußere Wärmezufuhr abrösten; die letzten Reste erfordern meist eine geringe Nachheizung. Bei vorsichtiger Ausführung gelingt es, die Kohle immer wieder auf ihr ursprüngliches Gewicht herunterzubringen und ein Produkt zu erhalten, welches auch nach vielmaliger Wiederholung die gute Absorptionsfähigkeit der ursprünglichen Kohle für Schwefelwasserstoff besitzt.Process for the rejuvenation of sulfur-containing absorption coal. the Rejuvenation of active coal, e.g. B. active charcoal, which is used for desulfurization sulfur-containing gases have been used, attempts have been made in various ways to without a technically completely satisfactory solution being known so far is. It has now been found that the sulphurous coal by simply roasting, whereby the sulfur is obtained as sulphurous acid, so far freed from the sulfur can be that it can be used again directly for cleaning the gases. One can easily avoid that significant amounts of coal are burned at the same time, by carefully regulating the temperature and air supply to create a glow the coal prevents. It is advisable to work through it in a rotating drum which a slow stream of air is sucked or blown. If you are at one point If heated to the point where the sulfur burns, the resulting heat is sufficient first to continue the combustion, and it can be the greatest Roast part of the sulfur without significant external heat input; the last remains usually require a small amount of reheating. With careful execution it succeeds to bring the coal down to its original weight again and again and a To obtain product which, even after repeated repetition, has good absorption capacity the original coal for hydrogen sulfide possesses.

Man hat bereits vorgeschlagen, gebrauchte Knochenkohle, Infusorienerde und anderes Filtermaterial durch Erhitzen im Luftstrom wieder verwendungsfähig zu machen. Hierbei handelt es sich um die Entfernung geringer Beimischungen von organischen Substanzen, und man konnte daraus nicht entnehmen, daß es möglich sein würde, mit Schwefel gesättigte Absorptionskohle von diesem durch Abrösten zu befreien und gleichzeitig der Kohle ihr Absorptionsvermögen und ihre katalytische Kraft wiederzugeben.It has already been proposed to use charcoal, infusor earth and other filter material can be reused by heating in an air stream do. This involves the removal of small amounts of organic substances Substances, and one could not infer from it that it would be possible with To free sulfur-saturated absorption charcoal from this by roasting and at the same time to reproduce the absorption capacity and catalytic power of the coal.

Claims (1)

PATENT-ANsPRUcH: Verfahren zur Auffrischung schwefelhaltiger Absorptionskohle, darin bestehend, daß man die Kohle bei mäßiger Temperatur abröstet.PATENT CLAIM: Process for replenishing sulfur-containing absorption carbon, consisting in roasting the coal at a moderate temperature.
DEB94275D 1920-06-01 1920-06-01 Process for the rejuvenation of sulfur-containing absorption carbon Expired DE387445C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB94275D DE387445C (en) 1920-06-01 1920-06-01 Process for the rejuvenation of sulfur-containing absorption carbon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB94275D DE387445C (en) 1920-06-01 1920-06-01 Process for the rejuvenation of sulfur-containing absorption carbon

Publications (1)

Publication Number Publication Date
DE387445C true DE387445C (en) 1923-12-28

Family

ID=6987469

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB94275D Expired DE387445C (en) 1920-06-01 1920-06-01 Process for the rejuvenation of sulfur-containing absorption carbon

Country Status (1)

Country Link
DE (1) DE387445C (en)

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