[go: up one dir, main page]

DE410760C - Process for the recovery of adsorbed volatile substances from solids - Google Patents

Process for the recovery of adsorbed volatile substances from solids

Info

Publication number
DE410760C
DE410760C DEB104364D DEB0104364D DE410760C DE 410760 C DE410760 C DE 410760C DE B104364 D DEB104364 D DE B104364D DE B0104364 D DEB0104364 D DE B0104364D DE 410760 C DE410760 C DE 410760C
Authority
DE
Germany
Prior art keywords
recovery
solids
volatile substances
adsorbed volatile
expelling
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
DEB104364D
Other languages
German (de)
Inventor
Dr Friedrich Striegler
Dr Gustav Wietzel
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 DEB104364D priority Critical patent/DE410760C/en
Application granted granted Critical
Publication of DE410760C publication Critical patent/DE410760C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/102—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/702—Hydrocarbons
    • B01D2257/7022—Aliphatic hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/702—Hydrocarbons
    • B01D2257/7027—Aromatic hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
    • B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
    • B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treating Waste Gases (AREA)

Description

Zwischen Beschreibung und Ihitentanshruch ist einzuschalten Beispiel r.Insert an example between description and contact details r.

Kokereigas wird so lange über aktive Kohle geleitet, bis sie vollkommen mit Benzol gesättigt ist. Mittels Wasserdampfs wird das Benzol sodann ausgetrieben und die Kohle darauf mit Luft oder Rauchgasen nur so weit getrocknet, dafi sie noch einen @ÄTassergehalt von 15 Prozent behält. Darauf wird von neuem Kokereigas über die Kohle geleitet.Coke oven gas is passed over active coal until it is complete is saturated with benzene. The benzene is then expelled by means of steam and the charcoal on it dried with air or flue gases only so far that it can still be retains a water content of 15 percent. Coke oven gas is then passed over again the coal headed.

Beispiel e.Example e.

an Benzol und Schwefelwasserstoff befreites Kokereigas wird so lange über aktive Kohle, die etwa 7 Prozent Wasser enthält, geleitet, bis diese \-olll;oiniiieii mit Äthylen gesättigt ist. Dieses wird dann mittels Wasserdampfs bei 4.o mm Druck ausgetrieben, «wofür etwa r bis 2 Prozent des Kohlegewichts an Wasserdampf erforderlich ist. Das hierbei aufgenommene Wasser wird bei der nachfolgenden erneuten Sättigung durch das äthylenhaltige Gas wieder fortgeführt, und durch diese teilweise Trocknung der Kohle wird zugleich die Anwendung eines besonderen Trocknungsgases erspart. Der Wassergehalt der Kohle wird also ständig auf etwa 7 Prozent gehalten. Verfahren zur Gewinnung adsorbierter flüchtiger Stoffe aus festen Körpern. Bei der Gewinnung von Bestandteilen aus Dampf- oder Gasgemischen mittels Adsorption durch feste Körper muß nach dem Austreiben der adsorbierten Produkte durch ein, geeignetes Austreibemittel dieses wieder entfernt und das Adsorptionsmittel zwecks erneuter Verwendung zur Adsorption wieder auf gewöhnliche Temperatur abgekühlt werden. Bei Verwendung von Wasserdampf als Austreibemittel ist z. B. eine Trocknung der porösen Körper durch ,erhitzte Gase notwendig, der dann eine Kühlung durch kalte Gase zu folgen hat.Coke oven gas freed of benzene and hydrogen sulfide will last for a long time passed over active charcoal, which contains about 7 percent water, until this \ -olll; oiniiieii is saturated with ethylene. This is then by means of steam at 4.o mm pressure driven out, «which requires about r to 2 percent of the weight of the coal in water vapor is. The water absorbed in this way becomes saturated again during the subsequent renewed saturation continued again through the ethylene-containing gas, and through this partial drying the coal is spared the use of a special drying gas. The water content of the coal is therefore constantly kept at around 7 percent. procedure for the recovery of adsorbed volatile substances from solids. In the extraction of constituents from vapor or gas mixtures by means of adsorption by solid bodies must after expelling the adsorbed products by a suitable expelling agent this removed again and the adsorbent for re-use Adsorption can be cooled back to ordinary temperature. When using Steam as an expelling agent is z. B. a drying of the porous body , heated gases are necessary, which then has to be followed by cooling with cold gases.

Es hat sich nun gezeigt, daß man das Austreibemittel nicht vollkommen zu entfethen braucht und daß es sogar zweckmäßig ist, einen Rest davon, dessen Menge nach der Art des zu adsorbierenden Stoffes, des Austreibemittels und des festen Adsorptionsmittels veränderlich ist, ständig in dem festen Adsorptionsmittel zu lassen. Es wurde nämlich gefunden, daß ein nicht zu großer Gehalt an Austreibemittel in den festen Körpern deren Adsorptionsfähigkeit kaum verringert, daß sich aber anderseits in diesem Falle die Regeneration viel schneller und leichter durchführen läßt. Besonders vorteilhaft ist die Verwendung von möglichst trockenen Gasen zum Trocknen und Kühlen.It has now been shown that the expelling agent is not perfect needs to be released and that it is even expedient to remove a remnant of it, its quantity according to the type of substance to be adsorbed, the expelling agent and the solid Adsorbent is variable, constantly increasing in the solid adsorbent permit. It has been found that the content of expelling agent is not too great in the solid bodies their adsorptive capacity hardly diminishes, but that on the other hand, in this case, the regeneration can be carried out much faster and more easily leaves. It is particularly advantageous to use gases that are as dry as possible for the Drying and cooling.

Claims (1)

PATEN T-ANSPRUCH: Verfahren zur Gewinnung flüchtiger adsorbierter Stoffe aus festen Körpern mittels Austreibemittel, wie Wasserdampf u. dgl., dadurch gekennzeichnet, daß man geringe Mengen des Austreibemittels ständig in den festen Adsorptionsmitbeln läßt.PATENT CLAIM: Process for the recovery of volatile adsorbed Substances from solid bodies by means of expelling agents, such as water vapor and the like characterized in that small amounts of the expelling agent are constantly added to the solid Adsorptionsmitbeln lets.
DEB104364D 1922-04-08 1922-04-08 Process for the recovery of adsorbed volatile substances from solids Expired DE410760C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB104364D DE410760C (en) 1922-04-08 1922-04-08 Process for the recovery of adsorbed volatile substances from solids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB104364D DE410760C (en) 1922-04-08 1922-04-08 Process for the recovery of adsorbed volatile substances from solids

Publications (1)

Publication Number Publication Date
DE410760C true DE410760C (en) 1925-03-10

Family

ID=6991021

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB104364D Expired DE410760C (en) 1922-04-08 1922-04-08 Process for the recovery of adsorbed volatile substances from solids

Country Status (1)

Country Link
DE (1) DE410760C (en)

Similar Documents

Publication Publication Date Title
DE600086C (en) Process for the recovery of gases or steams contained in adsorbents and regeneration of the adsorbents
DE2148954B2 (en) Process for the separation of vinyl chloride from vinyl chloride / inert gas mixtures
DE410760C (en) Process for the recovery of adsorbed volatile substances from solids
US1614615A (en) Recovery of volatile substances
DE704350C (en) Process for revitalizing adsorbents
DE746302C (en) Process for drying gases
DE527859C (en) Process for drying and cooling hot adsorbents
DE554209C (en) Process for the production of fumes and gases from moist gaseous mixtures
DE472804C (en) Process for separating organic gases and vapors
DE452456C (en) Process for the recovery of adsorbed gases from solid adsorbents
DE455798C (en) Method and device for the recovery of the substances taken up by adsorbents
DE588955C (en) Process for reducing the content of harmful substances in tobacco
DE620387C (en) Process for drying gases and gas mixtures
AT95238B (en) Process for separating organic gases or vapors.
DE393865C (en) Process for separating organic gases and vapors
DE328529C (en) Process for drying green tokens for color purposes
DE2060802A1 (en) Hydrocarbon and formaldehyde removal - from air by activated carbon contg water
DE575026C (en) Process for regenerating gels used to dry blast furnace wind
AT112415B (en)
DE598852C (en) Process for the elimination and destruction of impurities contained in aqueous fluids, in particular waste water
DE451719C (en) Process for the extraction of condensable substances from mixtures with air or other gases by adsorption
DE583526C (en) Process for degassing boiler feed water using heat and activated carbon
DE723179C (en) Regeneration of activated carbon used up during the separation of nitrogen oxides from gases by evaporation with steam
DE604294C (en) Process for removing carbonic acid and hydrogen sulphide from gases
GB255655A (en) Improvements in the recovery of volatile substances