DE9403167U1 - Device for adsorbing organic solvents from air - Google Patents
Device for adsorbing organic solvents from airInfo
- Publication number
- DE9403167U1 DE9403167U1 DE9403167U DE9403167U DE9403167U1 DE 9403167 U1 DE9403167 U1 DE 9403167U1 DE 9403167 U DE9403167 U DE 9403167U DE 9403167 U DE9403167 U DE 9403167U DE 9403167 U1 DE9403167 U1 DE 9403167U1
- Authority
- DE
- Germany
- Prior art keywords
- adsorption
- desorbed
- container
- air
- heating
- 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 - Lifetime
Links
- 239000003960 organic solvent Substances 0.000 title claims description 3
- 238000001179 sorption measurement Methods 0.000 claims description 27
- 238000010438 heat treatment Methods 0.000 claims description 13
- 239000000126 substance Substances 0.000 claims description 11
- 238000003795 desorption Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 4
- 230000001681 protective effect Effects 0.000 claims 2
- 101150112468 OR51E2 gene Proteins 0.000 claims 1
- 239000000969 carrier Substances 0.000 claims 1
- 238000009833 condensation Methods 0.000 claims 1
- 230000005494 condensation Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 claims 1
- 239000011261 inert gas Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000009988 textile finishing Methods 0.000 description 1
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
- B01D53/0407—Constructional details of adsorbing systems
- B01D53/0438—Cooling or heating systems
-
- 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
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40001—Methods relating to additional, e.g. intermediate, treatment of process gas
-
- 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
-
- 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
- B01D2259/41—Further details for adsorption processes and devices using plural beds of the same adsorbent in series
-
- 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
- B01D53/0454—Controlling adsorption
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)
- Separation Of Gases By Adsorption (AREA)
Description
Michael Schulte, Gebrauchsmusiere%a[4m| vom lCT.(9ft94·· Seite 001Michael Schulte, Gebrauchsmusiere%a[4m| from lCT.(9ft94·· Page 001
BeschreibungDescription
Luftfilter zur Adsorption und Desorption von organischen Stoffen { z.B. Lösemitteln ) mit veränderlicher Luftgeschwindigkeit und spezielle Anordnung der Beheizung um auf zusätzliche Wärmeträger wie z.B. Luft oder Dampf überwiegend verzichten zu können.Air filters for adsorption and desorption of organic substances { e.g. solvents ) with variable air speed and special heating arrangement in order to largely dispense with additional heat carriers such as air or steam.
Im Verwendungsprozeß organischer Lösemittel ebenso wie bei Sanierungsmaßnahmen werden zur Emissionsminderung Filteranlagen eingesetzt, in denen Adsorptionsmedien (Aktivkohle, Moiekularsiebe oder andere Stoffe ) die Luftinhaltsstoffe anlagern.In the use process of organic solvents as well as in remediation measures, filter systems are used to reduce emissions in which adsorption media (activated carbon, molecular sieves or other substances) collect the air constituents.
Gesetzliche Vorgaben oder Bestimmungen regeln die zugelassenen, erlaubten Restkonzentrationen der zu emitierenden Stoffe.Legal requirements or regulations regulate the permitted residual concentrations of the substances to be emitted.
Um bereits bei der Adsorption eine an die jeweilige Konzentration angepaßte Verweilzeit am Adsorptionsmedium zu erreichen und die Luft nicht durch den Ventilator zu erwärmen, ist ein Ventilator der Anlage nachgeschaltet, der mit unterschiedlichen Luftgeschwindigkeiten arbeitet.In order to achieve a residence time on the adsorption medium that is adapted to the respective concentration during adsorption and to avoid heating the air by the fan, a fan is connected downstream of the system that operates at different air speeds.
Da nach abgeschlossener Desorption das Adsorptionsmedium gekühlt und mit Frischluft getrocknet werden muß, führt die hier erfindungsgemäß vorgesehene Luftführung durch nur das desorbierte Kohlebett allein dazu, daß eine höhere Luftgeschwindigkeit erreicht wird und der Trocknungsvorgang schnell abgeschlossen werden kann.Since the adsorption medium must be cooled and dried with fresh air after desorption has been completed, the air flow provided here according to the invention through only the desorbed carbon bed leads to a higher air velocity being achieved and the drying process being able to be completed quickly.
Im Laufe der Adsorption wird eine Anreicherung der zurückgehaltenen Stoffe erreicht; in Abhängigkeit von den zugelassenen Restkonzentrationen der emitierten Stoffe findet dabei eine Sättigung des Adsorptionsmediums statt und eine Desorption oder der Austausch des Adsorptionsmediums wird erforderlich.During the adsorption process, an enrichment of the retained substances is achieved; depending on the permitted residual concentrations of the emitted substances, a saturation of the adsorption medium takes place and a desorption or replacement of the adsorption medium becomes necessary.
Um die adsorbierten organischen Stoffe vom Adsorptionsmedium wieder zu entfernen, wird derzeit die dazu benötigte Energie mittels eines Trägermediums ( Heißluft oder Direktdampf) zugeführt.In order to remove the adsorbed organic substances from the adsorption medium, the energy required for this is currently supplied by means of a carrier medium (hot air or direct steam).
Michael Schulte, Gebrauchsmu^eampek&uig vom 1(T,€2f|.<34·· Seite 002Michael Schulte, Utility Model from 1(T,€2f|.<34·· Page 002
Ziel der Erfindung ist der mögiichsi vollständige Verzicht auf Verwendung eines zur Desorption bisher eingesetzten Trägermediums bei der Wärmeübertragung.The aim of the invention is to completely dispense with the use of a carrier medium previously used for desorption in heat transfer.
Da die adsorbierten Stoffe ( organischen Lösemittel ) bei Temperaturerhöhung in Abhängigkeit vom Dampfdruck selbstätig in den Kondensationsbereich übertreten und der Übertritt in den Kondensationsbereich möglicherweise durch einen erzeugten Unterdruck noch beschleunigt werden kann, können durch die erfindungsgemäße Anlage erhebliche Mengen an Energie eingespart werden.Since the adsorbed substances (organic solvents) automatically pass into the condensation area when the temperature increases depending on the vapor pressure and the transition into the condensation area can possibly be accelerated by a generated negative pressure, considerable amounts of energy can be saved by the system according to the invention.
Die Erfindung besteht aus der Verwendung geeigneter, mit Adsorptionsmedien gefüllten Behälter, die wahlweise mit weiteren Behältern in Reihe geschaltet sind { ansaugen über A weiter über Ventil 3 in den Behälter 1 und über Ventil 5 zum Behälter 2 und von dort über Ventil 8 vom Ventilator nach außen transportiert ) und bei denen zur Temperaturerhöhung und Desorption der zuvor adsorbierten Stoffe eine direkte Wärmeübertragung stattfindet. ( FIG. 2 und FlG. 3 )The invention consists of the use of suitable containers filled with adsorption media, which are optionally connected in series with other containers (suction via A, further via valve 3 into container 1 and via valve 5 to container 2 and from there via valve 8 transported to the outside by the fan) and in which a direct heat transfer takes place to increase the temperature and desorb the previously adsorbed substances. ( FIG. 2 and FIG. 3 )
Je nach Art der anlagenspezifisch adsorbierten Stoffe erfolgt die Wärmeübertragung in konstruktiv individuell festzulegenden Abständen um eine gleichmäßige Erwärmung des als Adsorptionsmedium ausgebildeten Behälterinneren zu erzielen. ( FIG. 2 und FIG. 3 )Depending on the type of substances adsorbed in the specific system, heat transfer takes place at intervals that are individually determined by the design in order to achieve uniform heating of the interior of the container, which is designed as an adsorption medium. ( FIG. 2 and FIG. 3 )
Die Annordnung der zur Wärmeübertragung eingesetzten Beheizung ist abhängig von den zu desorbierenden, zuvor angelagerten Stoffen und Stoffverbindungen.The arrangement of the heating used for heat transfer depends on the previously deposited substances and material compounds to be desorbed.
Da das Adsorptionsmaterial nur eine geringe Wärmeübertragung zulässt, ist der Abstand von einer Wärmeübertragungsquelle zur anderen konstruktiv so zu wählen und festzulegen, daß dabei das zwischen!iegende Adsorptionsmedium auf die erforderliche Temperatur aufgeheizt werden kann.Since the adsorption material only allows a low level of heat transfer, the distance from one heat transfer source to the other must be selected and determined in such a way that the adsorption medium in between can be heated to the required temperature.
Der mit Adsorptionsmedium gefüllte Behälter kann in Verbindung mit der erfindungsgemäß gewählten Art der Wärmeübertragung rund oder eckig sein und sowohl aus Metall, als auch aus anderen geeigneten Materialien bestehen oder mit speziellen Beschichtungen versehen sein.The container filled with adsorption medium can be round or square in connection with the type of heat transfer selected according to the invention and can consist of metal as well as other suitable materials or be provided with special coatings.
Während der Temperaturerhöhung werden die zuvor adsorbierten Stoffe in Gasform überführt und durch eine mit Ventil 2 oder 7 zu verbindende Rohrleitung zum Kondensator entweichen.During the temperature increase, the previously adsorbed substances are converted into gaseous form and escape to the condenser through a pipe connected to valve 2 or 7.
Michael Schulte, Gebrauchsmu^ei^^ekluuig yb*i|i 10*.&bgr;^.^4·· Seite 003Michael Schulte, Gebrauchsmu^ei^^ekluuig yb*i|i 10*.&bgr;^.^4·· Page 003
Zwecks Verbesserung des Stofftransportes während der Desorption kann zur Unterstützung des Desorptionsvorgangs an der Austrittsöffnung über Ventil 2 und 7 ein Unterdruck erzeugt werden.In order to improve the transport of substances during desorption, a negative pressure can be generated at the outlet opening via valves 2 and 7 to support the desorption process.
Die entweichenden, desorbierten Gase werden in geschlossenen Rohrleitungen zu einem Kondensator geleitet, der die gasförmigen Stoffe kondensieren läßt und so die Voraussetzung schafft, daß verflüssigte Stoffe anschließend in geeigneten Behältern zur Verwendung wieder zur Verfügung stehen.The escaping, desorbed gases are led through closed pipes to a condenser, which condenses the gaseous substances and thus creates the conditions for the liquefied substances to be subsequently available for use again in suitable containers.
Da kein zusätzlicher Wärmeträger eingesetzt werden muß, kann bei der Textilreinigung, Textilausrüstung und Oberflächenbehandlung zum Zecke der Kondensation des desorbierten Lösemittelgases der vorhandene Kondensator der Destilliereinrichtung verwendet werden.Since no additional heat transfer medium has to be used, the existing condenser of the distillation device can be used for the purpose of condensing the desorbed solvent gas during textile cleaning, textile finishing and surface treatment.
Da bei Beginn der Desorption und Beginn der Erwärmung zunächst das im Behälter befindliche Luftvolumen verdrängt werden muß, ist eine temperaturgesteuerte Überwachung ( FIG. 1 Thermostat ) eingerichtet, mit der die entweichende Luft aus dem mit Wärme versorgten Behälter solange in den bereitstehenden zusätzlichen Adsorptionsbehälter entweicht damit dort die vorhandenen Lösemittelanteile adsorbiert werden, bis eine eingestellte Temperatur von beispielsweise 600C überschritten wird. Erst dann öffnet die Desorptionsverbindung ( FIG. 1 Ventil 2 oder 7 ) zum Kondensator.Since the volume of air in the container must first be displaced at the start of desorption and heating, a temperature-controlled monitoring system ( FIG. 1 thermostat ) is set up, with which the escaping air from the container supplied with heat escapes into the additional adsorption container provided so that the solvent components present are adsorbed there until a set temperature of, for example, 60 0 C is exceeded. Only then does the desorption connection ( FIG. 1 valve 2 or 7 ) to the condenser open.
Bei der beabsichtigten Desorption von brennbaren Stoffen kann vor oder mit Beginn der Erwärmung - jedoch vor Erreichen eines durch Temperaturerhöhung verursachten explosiven Gemisches - der Sauerstoffanteil im zu desorbierenden Behälter zunächst z.B. durch Einlaß von Stickstoff über eine anzubringende Zuleitung minimiert werden; alternativ kann ein Vaccuum erzeugt werden.When desorbing combustible substances, the oxygen content in the container to be desorbed can be minimized, e.g. by introducing nitrogen via a supply line, before or at the start of heating - but before an explosive mixture is reached due to an increase in temperature; alternatively, a vacuum can be created.
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9403167U DE9403167U1 (en) | 1994-02-25 | 1994-02-25 | Device for adsorbing organic solvents from air |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9403167U DE9403167U1 (en) | 1994-02-25 | 1994-02-25 | Device for adsorbing organic solvents from air |
Publications (1)
Publication Number | Publication Date |
---|---|
DE9403167U1 true DE9403167U1 (en) | 1994-08-04 |
Family
ID=6905130
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE9403167U Expired - Lifetime DE9403167U1 (en) | 1994-02-25 | 1994-02-25 | Device for adsorbing organic solvents from air |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE9403167U1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008017487A1 (en) * | 2008-04-03 | 2009-10-08 | Karl Roll Gmbh & Co. Kg | Regenerating adsorber loaded with combustible solvent, comprises guiding the solvent containing exhaust air from industrial part cleaning system to device, admitting the adsorber with negative pressure, and heating the adsorbent |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2523079B2 (en) * | 1975-05-24 | 1977-04-07 | Böwe Böhler & Weber KG Maschinenfabrik, 8900 Augsburg | DEVICE FOR ADSORPTIVE REMOVAL OF SOLVENT VAPOR FROM AN AIRFLOW |
SU801859A1 (en) * | 1979-04-23 | 1981-02-07 | Предприятие П/Я В-2320 | Plant for cleaning compressed air |
DE2921560C2 (en) * | 1979-05-28 | 1986-07-10 | Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe | Method and device for removing or desorbing components of gaseous media that have been absorbed in sorption materials |
DE3933111A1 (en) * | 1989-10-04 | 1991-04-18 | Peter Warthmann | Recovery of solvent - by desorption of adsorbing agent e.g. molecular sieve pack |
DE4000499A1 (en) * | 1990-01-10 | 1991-07-11 | Hermann Prof Dipl In Schreiner | EMISSION-FREE DESORPTION PROCESS |
-
1994
- 1994-02-25 DE DE9403167U patent/DE9403167U1/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2523079B2 (en) * | 1975-05-24 | 1977-04-07 | Böwe Böhler & Weber KG Maschinenfabrik, 8900 Augsburg | DEVICE FOR ADSORPTIVE REMOVAL OF SOLVENT VAPOR FROM AN AIRFLOW |
SU801859A1 (en) * | 1979-04-23 | 1981-02-07 | Предприятие П/Я В-2320 | Plant for cleaning compressed air |
DE2921560C2 (en) * | 1979-05-28 | 1986-07-10 | Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe | Method and device for removing or desorbing components of gaseous media that have been absorbed in sorption materials |
DE3933111A1 (en) * | 1989-10-04 | 1991-04-18 | Peter Warthmann | Recovery of solvent - by desorption of adsorbing agent e.g. molecular sieve pack |
DE4000499A1 (en) * | 1990-01-10 | 1991-07-11 | Hermann Prof Dipl In Schreiner | EMISSION-FREE DESORPTION PROCESS |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008017487A1 (en) * | 2008-04-03 | 2009-10-08 | Karl Roll Gmbh & Co. Kg | Regenerating adsorber loaded with combustible solvent, comprises guiding the solvent containing exhaust air from industrial part cleaning system to device, admitting the adsorber with negative pressure, and heating the adsorbent |
DE102008017487B4 (en) * | 2008-04-03 | 2015-02-19 | Karl Roll Gmbh & Co. Kg | Method and device for regenerating an adsorber charged with a combustible solvent |
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