DE485500C - Process for the separation and recovery of solid or high-boiling volatile substances from a gas stream containing volatile solvents - Google Patents
Process for the separation and recovery of solid or high-boiling volatile substances from a gas stream containing volatile solventsInfo
- Publication number
- DE485500C DE485500C DEC41159D DEC0041159D DE485500C DE 485500 C DE485500 C DE 485500C DE C41159 D DEC41159 D DE C41159D DE C0041159 D DEC0041159 D DE C0041159D DE 485500 C DE485500 C DE 485500C
- Authority
- DE
- Germany
- Prior art keywords
- recovery
- gas stream
- solid
- separation
- stream containing
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
-
- 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
- B01D53/1487—Removing organic compounds
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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
- B01D53/14—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
- B01D53/1493—Selection of liquid materials for use as absorbents
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
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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
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/704—Solvents not covered by groups B01D2257/702 - B01D2257/7027
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0258—Other waste gases from painting equipments or paint drying installations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
-
- 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
- B01D53/002—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 condensation
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
Description
Verfahren zur Abscheidung und Gewinnung von festen oder hochsiedenden flüchtigen Stoffen aus einem flüchtige Lösungsmittel enthaltenden Gasstrom Bei vielen technischen Verfahrensvorgängen, bei welchen flüchtige Lösungsmittel verdampfen, gehen gleichzeitig hochsiedende oder feste Stoffe in Dampfform mit. Es sei z. B. auf das Spritzlackverfahren hingewiesen. Dieses Verfahren besteht darin, daß eine Farblösung mittels Druckluft auf einen in den Weg gestellten Körper aufgetragen wird. Ilierbei verdampfen die Lösungsmittel und werden zweckmäßig durch eine Ventilation abgesaugt.Process for the separation and recovery of solid or high boiling points volatile substances from a gas stream containing volatile solvents technical process operations in which volatile solvents evaporate, at the same time high-boiling or solid substances go with it in vapor form. Let it be B. referred to the spray paint process. This method consists in that a Dye solution applied to a body placed in the way by means of compressed air will. In the process, the solvents evaporate and are expediently ventilated sucked off.
Aus den Gasen können die Lösungsmittel durch bekannte Verfahren wiedergewonnen werden. Gleichzeitig und neben den flüchtigen Lösungsmitteln sind jedoch in den Gasen auch feste Teile des Lacks enthalten, die durch den Luftstrom fortgetragen werden.The solvents can be recovered from the gases by known methods will. At the same time and next to the volatile solvents, however, are in the Gases also contain solid parts of the paint that are carried away by the air flow will.
Diese festen Körper haben bisher eine geordnete Rückgewinnung in Frage gestellt, da sie sich in den Rohrleitungen und Apparateteilen festsetzen, zu Verstopfungen Anlaß geben und eine häufige Reinigung der Einrichtung notwendig machten.These solid bodies have hitherto been questioned about an orderly recovery because they get stuck in the pipelines and parts of the apparatus, to blockages Giving cause and necessitating frequent cleaning of the facility.
Ein zweites Beispiel wäre die Rückgewinnung von flüchtigen Stoffen, welche in der Isoliermaterialfabrikation auftreten. Bei diesen technischen Prozessen gelangen während des Trockenvorganges Lackteilchen in die Luft, setzen sich später in den Rohrleitungen ab und verursachen unangenehme Störungen. A second example would be the recovery of volatile substances, which occur in the manufacture of insulating materials. In these technical processes If paint particles get into the air during the drying process, they settle later in the pipelines and cause unpleasant disturbances.
Das vorliegende Verfahren ermöglicht es, diese störenden Abscheidungen zu beseitigen und überdies die festen Stoffe in einer Form wiederzugewinnen, in welcher sie neuerdings im Betriebe verwendet werden können, z. B. als Zusatz zu den ursprünglich verwendeten Lacken oder an Stelle der Lacke selbst. The present method makes it possible to eliminate these disruptive deposits to remove and, moreover, to recover the solid matter in a form in which they can now be used in the company, z. B. as an addition to the paints originally used or instead of the paints themselves.
Das Verfahren besteht darin, daß man vor die Reinigungseinrichtung einen oder mehrere Apparate setzt, in welchen der Gasstrom vor seinem Eintritt in die Wiedergewinnungsanlage mit dem gleichen Lösungsmittel oder Lösungsmittelgemisch gewaschen wird, das nachher sich in der Rückgewinnungsanlage abscheidet. The procedure consists of standing in front of the cleaning device sets one or more apparatus in which the gas stream before its entry into the recovery plant with the same solvent or solvent mixture is washed, which is then deposited in the recovery system.
Wenn es sich also beispielsweise um die Rückgewinnung von Alkohol bei der Bakelitpapierfabrikation handelt, so wird vor die Rückgewinnungsanlage ein Apparat geschaltet, in welchem das Dampf-Luft-Gemisch zunächst mit Alkohol gewaschen wird. Der Alkohol löst aus dem Gas sämtliche fremden Stoffe, mit Ausnahme der Alkoholdämpfe, heraus; er schlägt also auch die Dämpfe des Bakelitlackes nieder, indem sich eine Bakelit-Alkohol-Lösung derselben Art bildet, wie sie zum Streichen des Papiers verwendet worden ist.So when it comes to the recovery of alcohol, for example is involved in Bakelite paper production, a Apparatus switched in which the steam-air mixture was first washed with alcohol will. The alcohol dissolves all foreign substances from the gas, with the exception of alcohol vapors, out; So he also knocks down the vapors of the Bakelite lacquer by getting a Bakelite alcohol solution forms the same type as that used to paint the paper has been.
In ähnlicher Weise wird bei der Rückgewinnung an Spritzlacktischen das Dampf-Luft-Gemisch mit dem Lösungsmittel gewaschen, welches sich in der Rückgewinnungsanlage abscheidet, und dadurch werden die Lackteilchen in Form der gleichen Lösung erhalten, die ursprünglich das Ausgangsmaterial bildete, wenn auch in einem anderen Verdünnungsgrad Die gewonnenen Lösungen können entweder ihrerseits als neues Ausgangsmaterial benutzt werden oder sie dienen als Zusatz zu den neu eingesetzten Rohstoffen. A similar process is used for the recovery on spray paint tables the steam-air mixture is washed with the solvent, which is in the recovery system separates, and thereby the paint particles are obtained in the form of the same solution, which was originally the source material educated, albeit in one other degree of dilution The solutions obtained can either be used as new ones Starting material can be used or they serve as an addition to the newly used Raw materials.
Das angegebene Verfahren kann auch in der Weise ausgeübt werden, daß in bekannter Weise vor Eintritt in die Rückgewinnungsanlage für die flüchtigen Lösungsmittel durch geeignete Vorkühlung ein Teil der im Dampf-Luft-Gemisch enthaltenen flüchtigen Lösungsmittel verflüssigt wird. Die ablaufende Flüssigkeit dient dann als Waschmittel für die herankommenden Dämpfe. The specified procedure can also be carried out in such a way that that in a known manner before entering the recovery system for the volatile Solvent some of that contained in the steam-air mixture by suitable pre-cooling volatile solvent is liquefied. The draining liquid then serves as a detergent for the oncoming vapors.
Das geschilderte Verfahren ermöglicht nicht nur eine geordnete Rückgewinnung der flüchtigen Stoffe, sondern gewährleistet auch die Abscheidung der früher verlorengegangenen festen oder hochsiedenden Teile in wiederverwendungsfähiger Form. The process outlined not only enables an orderly recovery of volatile substances, but also ensures the separation of those previously lost solid or high-boiling parts in a reusable form.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEC41159D DE485500C (en) | 1928-03-06 | 1928-03-06 | Process for the separation and recovery of solid or high-boiling volatile substances from a gas stream containing volatile solvents |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEC41159D DE485500C (en) | 1928-03-06 | 1928-03-06 | Process for the separation and recovery of solid or high-boiling volatile substances from a gas stream containing volatile solvents |
Publications (1)
Publication Number | Publication Date |
---|---|
DE485500C true DE485500C (en) | 1929-11-01 |
Family
ID=7024447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEC41159D Expired DE485500C (en) | 1928-03-06 | 1928-03-06 | Process for the separation and recovery of solid or high-boiling volatile substances from a gas stream containing volatile solvents |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE485500C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0354866A1 (en) * | 1988-07-08 | 1990-02-14 | SCHWELM ANLAGEN- + APPARATEBAU GmbH | Method and apparatus for the recovery of organic vapours from gases |
-
1928
- 1928-03-06 DE DEC41159D patent/DE485500C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0354866A1 (en) * | 1988-07-08 | 1990-02-14 | SCHWELM ANLAGEN- + APPARATEBAU GmbH | Method and apparatus for the recovery of organic vapours from gases |
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