DE4104513A1 - Regeneration method for adsorbent carbon - by electrical heating of carbon material which has been removed from its locating unit and pressed into shapes or fibres - Google Patents
Regeneration method for adsorbent carbon - by electrical heating of carbon material which has been removed from its locating unit and pressed into shapes or fibresInfo
- Publication number
- DE4104513A1 DE4104513A1 DE4104513A DE4104513A DE4104513A1 DE 4104513 A1 DE4104513 A1 DE 4104513A1 DE 4104513 A DE4104513 A DE 4104513A DE 4104513 A DE4104513 A DE 4104513A DE 4104513 A1 DE4104513 A1 DE 4104513A1
- Authority
- DE
- Germany
- Prior art keywords
- adsorbent
- regeneration
- adsorbent material
- heated
- activated 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.)
- Granted
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 239000003463 adsorbent Substances 0.000 title claims abstract description 34
- 238000011069 regeneration method Methods 0.000 title claims abstract description 31
- 238000010438 heat treatment Methods 0.000 title claims description 18
- 229910052799 carbon Inorganic materials 0.000 title abstract 3
- 239000003575 carbonaceous material Substances 0.000 title abstract 2
- 230000008929 regeneration Effects 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 claims description 42
- 238000000034 method Methods 0.000 claims description 28
- 239000003344 environmental pollutant Substances 0.000 claims description 11
- 231100000719 pollutant Toxicity 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- 239000012510 hollow fiber Substances 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims description 2
- 238000005245 sintering Methods 0.000 claims description 2
- 238000010926 purge Methods 0.000 claims 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 238000001311 chemical methods and process Methods 0.000 abstract 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 1
- 230000001172 regenerating effect Effects 0.000 abstract 1
- 238000010792 warming Methods 0.000 abstract 1
- 238000001179 sorption measurement Methods 0.000 description 12
- 239000012159 carrier gas Substances 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 6
- 238000004939 coking Methods 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- 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
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28023—Fibres or filaments
-
- 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
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28033—Membrane, sheet, cloth, pad, lamellar or mat
-
- 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
- B01J20/3416—Regenerating or reactivating of sorbents or filter aids comprising free carbon, e.g. activated carbon
-
- 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
- C01B32/366—Reactivation or regeneration by physical processes, e.g. by irradiation, by using electric current passing through carbonaceous feedstock or by using recyclable inert heating bodies
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Toxicology (AREA)
- Inorganic Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
Description
Die Erfindung bezieht sich auf ein Verfahren zur Regen eration von Adsorbern, bei dem das adsorbierende Mate rial (Adsorbens) auf eine Temperatur erwärmt wird, bei der das adsorbierte Material ausgetrieben, d. h. desor biert wird.The invention relates to a method for rain eration of adsorbers, in which the adsorbent mate rial (adsorbent) is heated to a temperature at which expels the adsorbed material, d. H. desor beers.
Adsorber haben in den letzten Jahren zunehmend Anwen dung u. a. bei der Entfernung von Schadstoffen aus Was ser oder Luft gefunden. Beispielsweise können chlorier te Kohlenwasserstoffe (CKW) auch in geringen Konzentra tionen aus Fluidströmen, wie Gas- oder Wasserströmen, mittels Adsorbern entfernt werden. Eine typische Anwen dung ist dabei die Altlastsanierung CKW-kontaminierter Böden durch Absaugen mit integrierter Adsorption der Schadstoffe. Als Adsorbens findet dabei häufig Aktiv kohle Verwendung.Adsorbers have become increasingly popular in recent years dung u. a. in removing pollutants from what water or air found. For example, chlorination hydrocarbons (CHC) even in low concentrations ions from fluid flows, such as gas or water flows, be removed by means of adsorbers. A typical application The contaminated site remediation is contaminated with CHC Soils by suction with integrated adsorption of the Pollutants. Active is often found as the adsorbent coal use.
Da die Adsorptionsfähigkeit aufgrund der "Besetzung" der Adsorberplätze nach einiger nachläßt, ist es erfor derlich, das adsorbierende Material durch Austreiben des adsorbierenden Materials zu regenerieren. Diese Regeneration bereitet jedoch häufig Probleme:Because the adsorption capacity due to the "occupation" if the adsorber positions decrease after a few, it is needed the adsorbent material by expulsion to regenerate the adsorbent material. These However, regeneration often causes problems:
Gegenwärtig wird am häufigsten das sogenannte Verdrän gungsverfahren mittels Wasserdampf verwendet; bei die sem Verfahren gelingt die Regeneration beispielsweise von Aktivkohle nur partiell, so daß das adsorbierende Material nach mehreren Regenerationszyklen in seiner Leistungsfähigkeit soweit nachgelassen hat, daß es mit großem Aufwand entsorgt werden muß.At the moment the most common is the so-called displacement steaming method used; at the The regeneration process is successful, for example of activated carbon only partially, so that the adsorbing Material after several regeneration cycles in its Performance has waned so far that with great effort must be disposed of.
W. Kast schlägt deshalb in seinem Buch "Adsorption aus der Gasphase" (Verlag VCH Weinheim, 1988) die thermi sche Regeneration bzw. die Kombination thermischer Regeneration und des Verdrängungsverfahrens vor. Zur Durchführung dieses Regenerationsverfahrens muß die Aktivkohle jedoch über einem Wärmetauscher erhitzt werden. Dies bedeutet in den meisten Fällen, daß die Aktivkohle vor der Regeneration aus der Adsorptionsvor richtung entfernt werden muß, da wegen ihres schlechten Wärmeübergangs ein Beheizen der Adsorbersäule von außen unwirtschaftlich ist. W. Kast therefore disclaims in his book "Adsorption the gas phase "(Verlag VCH Weinheim, 1988) the thermi cal regeneration or the combination of thermal Regeneration and the displacement process. To The implementation of this regeneration process must Activated carbon, however, is heated over a heat exchanger will. In most cases this means that the Activated carbon before regeneration from the adsorption process direction must be removed because of its bad Heat transfer heating the adsorber column from the outside is uneconomical.
Ferner sind aus der DE 29 53 672 A1 ein Verfahren und eine Vorrichtung zur Regeneration von Aktivkohle be kannt, bei dem durch eine pulsierende Spannung ein Lichtbogen erzeugt wird, der den adsorbierten Stoff freisetzt. Die Verwendung von Lichtbögen führt jedoch zu einem starken Abbrand und damit zu einem schnellen Verbrauch bzw. Verschleiß des Adsorbers.Furthermore, DE 29 53 672 A1 describes a method and a device for the regeneration of activated carbon be knows, by a pulsating voltage Arc is generated by the adsorbed substance releases. However, the use of arcs leads to a strong burn and thus to a quick one Consumption or wear of the adsorber.
Weiterhin ist aus der US-PS 42 61 857 ein Verfahren bekannt, bei dem verbrauchte Aktivkohle in einen luft dicht verschlossenen Ofen mit mehreren in vertikaler Richtung in Abständen angebrachten Elektroden einge füllt wird. Über die Elektroden wird ein elektrischer Strom geleitet, der die Aktivkohle erhitzt, so daß die adsorbierten Stoffe freigesetzt werden.Furthermore, a method is known from US Pat. No. 4,261,857 known, in the spent activated carbon in air tightly sealed oven with several in vertical Direction electrodes placed at intervals is filled. An electrical Current passed, which heats the activated carbon, so that the adsorbed substances are released.
Bei diesem und auch bei dem aus der US-PS 42 61 857 bekannten Verfahren muß die Aktivkohle in "Partikel form" vorliegen. Die Verwendung pulver- bzw. granulat förmiger Aktivkohle hat jedoch den Nachteil, daß sowohl der elektrische als auch der Wärmeleitungs-Widerstand hoch ist, so daß die Regenerations-Effizienz gering ist. Zudem bilden sich bei der elektrischen Beheizung von partikelförmiger, wirbelfähiger Aktivkohle wegen der ungleichmäßigen Schüttung Wärmenester aus, die bei der anschließenden Wiederverwendung als Adsorbens zur Selbstzündung führen können.In this and also in that from US-PS 42 61 857 In known processes, the activated carbon must be divided into "particles form ". The use of powder or granules shaped activated carbon has the disadvantage, however, that both the electrical as well as the heat conduction resistance is high, so the regeneration efficiency is low is. In addition, electrical heating is formed of particulate, swirlable activated carbon because of the uneven fill of heat pockets, which at the subsequent reuse as an adsorbent Ignition can lead.
Darüberhinaus ist es bei den bekannten Verfahren und Vorrichtungen, bei denen eine elektrische Beheizung der Aktivkohle erfolgt, erforderlich, zur Regeneration die Aktivkohle aus der eigentlichen Adsorptions-Vorrichtung zu entnehmen. In addition, it is in the known methods and Devices in which electrical heating of the Activated carbon is required for regeneration Activated carbon from the actual adsorption device refer to.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Regeneration von aus Aktivkohle bestehenden Adsor bern anzugeben, das ohne Entfernen des adsorbierenden Materials aus der Adsorptionsvorrichtung durchgeführt werden kann, und das eine hohe Regenerations-Effizienz aufweist, ohne daß sich Wärmenester etc. bilden können.The invention has for its object a method for the regeneration of activated carbon adsorber bern to indicate that without removing the adsorbent Material carried out from the adsorption device can be, and that a high regeneration efficiency has, without heat pockets etc. can form.
Eine erfindungsgemäße Lösung dieser Aufgabe ist im Anspruch 1 angegeben. Weiterbildungen der Erfindung sind Gegenstand der abhängigen Ansprüche.An inventive solution to this problem is in Claim 1 specified. Developments of the invention are the subject of the dependent claims.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß von einem Verfahren zur Regeneration von Adsorbern ausgegangen wird, bei dem das adsorbierende Material (Aktivkohle) auf eine Temperatur erwärmt wird, bei der das ädsorbierte Material ausgetrieben, d. h. desorbiert wird.This object is achieved in that of a process for the regeneration of adsorbers is assumed in which the adsorbent material (Activated carbon) is heated to a temperature at which expelled the adsorbed material, d. H. desorbed becomes.
Erfindungsgemäß wird als adsorbierendes Material ein elektrisch leitfähiges Material verwendet, bei dem die Aktivkohle dadurch gleichmäßig elektrisch leitfähig gemacht wird, daß sie beispielsweise als Rohr gepreßt und gesintert ist, wobei bei entsprechender Präparie rung eine ausreichende elektrische Leitfähigkeit auf rechterhalten wird. Zur Erwärmung des elektrisch leit fähigen adsorbierenden Materials wird dieses durch Stromdurchgang erwärmt, daß das adsorbierte Material ausgetrieben wird.According to the invention, is used as an adsorbing material used electrically conductive material in which the Activated carbon is therefore evenly electrically conductive is made that it is pressed, for example, as a tube and is sintered, with appropriate preparation sufficient electrical conductivity is maintained. To heat the electrically conductive capable adsorbent material Current passage warms that the adsorbed material is driven out.
Die Erwärmung kann dabei durch direkten Stromdurchgang (Anspruch 3) erfolgen. Hierzu werden geeignete Elektro den vorgesehen, an die eine Gleich- oder Wechselspan nung angelegt wird. The heating can be done by direct current passage (Claim 3) take place. For this, suitable electrical the provided to which a DC or AC chip is created.
Weiterhin ist es auch möglich, das elektrisch leitende adsorbierende Material induktiv mit einer bekannten Induktions-Heizvorrichtung zu erwärmen (Anspruch 4).Furthermore, it is also possible to use the electrically conductive adsorbent material inductively with a known To heat induction heating device (claim 4).
Darüberhinaus ist es aber auch möglich, anstelle oder zusätzlich zur Erwärmung durch Stromdurchgang die Er wärmung des adsorbierenden Materials durch eine Mikro wellenheizung auszuführen, durch die das Material eben falls im gesamten Volumen gleichmäßig erwärmt wird (Anspruch 5).It is also possible to use instead of or in addition to heating due to electrical continuity, the Er heating of the adsorbent material by a micro shaft heating through which the material just if the entire volume is heated evenly (Claim 5).
In jedem Falle kann die Regeneration des adsorbierenden Materials sowohl in der eigentlichen Adsorptionsvor richtung als auch außerhalb der Adsorptionsvorrichtung erfolgen. Bei einer (in der Regel bevorzugten) Regene ration des adsorbierenden Materials in der Adsorptions vorrichtung ist selbstverständlich sicherzustellen, daß die desorbierten Schadstoffe in geeigneter Weise aufge fangen werden.In any case, the regeneration of the adsorbent Materials both in the actual adsorption pre direction as well as outside the adsorption device respectively. With a (usually preferred) rain ration of the adsorbent material in the adsorption of course, the device must ensure that the desorbed pollutants in a suitable manner will catch.
Das erfindungsgemäße Verfahren, bei dem eine Erwärmung des adsorbierenden Materials durch Stromdurchgang und/oder Mikrowellenheizung erfolgt, kann unabhängig von der Zustandsform des Adsorbens angewendet werden: so ist es möglich, als Adsorbens Hohlfasern bzw. hohle Säulen, durch die das mit Schadstoffen beladene Medium strömt, oder mattenförmige Gebilde zu verwenden.The method according to the invention, in which heating of the adsorbent material through current passage and / or Microwave heating can be done independently the state of the adsorbent can be applied: see above it is possible to use hollow fibers or hollow fibers as the adsorbent Pillars through which the medium loaded with pollutants flows, or to use mat-shaped structures.
Im Falle der Verwendung von Aktivkohle als adsorbieren des Material kann die Aktivkohle in der gewünschten geometrischen Form leicht durch Verkoken von entspre chenden Gebilden hergestellt werden. Als Ausgangsmate rial können z. B. Preßlinge aus Kohle, extrudiertes Pech oder beliebige Polymere wie Nylon, Polyamide, Zellulose etc. verwendet werden, die in der gewünschten Form vorliegen und die unter Luftabschluß auf die Verko kungstemperatur erwärmt werden. Bei Erreichen eines bestimmten Verkokungsgrades ergibt sich eine elektri sche Leitfähigkeit, die ein ausreichendes Aufheizen von Adsorbern mit üblichen Spannungen erlaubt.In case of using activated carbon as adsorb of the material can be activated carbon in the desired geometric shape easily by coking by correspond corresponding structures are produced. As starting material rial can z. B. Coals, extruded pitch or any polymers such as nylon, polyamides, cellulose etc. can be used in the desired form are present and the air sealed on the Verko temperature. When you reach one certain degree of coking results in an electri conductivity, which is sufficient heating of Adsorbers with usual voltages allowed.
In jedem Falle ist es jedoch von Vorteil, wenn die während der Regenerationsphase desorbierten Schadstoffe durch einen Trägergasstrom ausgetragen werden. Der Trägergasstrom kann beispielsweise ein Inertgas (An spruch 8) oder Wasserdampf (Anspruch 7) sein. Bei der Verwendung von Wasserdampf als Trägergas werden einer seits die thermische Regeneration und die Verdrän gungsregeneration miteinander kombiniert und anderer seits die Schadstoffe durch Kondensation besonders einfach abgeschieden. Durch die direkte Heizung wird jedoch die Bildung von Wasserdampfkondensat in dem Poren des adsorbierenden Materials verhindert, die bei den bekannten Verdrängungs-Regenerationsverfahren die Diffusion der desorbierenden Schadstoffmoleküle behin dert, und so die Regeneration nach wenigen Zyklen zum Erliegen bringt.In any case, it is advantageous if the Pollutants desorbed during the regeneration phase are carried out by a carrier gas stream. The Carrier gas flow can be, for example, an inert gas (An saying 8) or water vapor (claim 7). In the Use of water vapor as a carrier gas will be one on the one hand thermal regeneration and displacement regeneration combined with each other and others on the one hand the pollutants through condensation in particular just deposited. Through the direct heating however, the formation of water vapor condensate in the Prevents pores of the adsorbent material which the known displacement regeneration process Diffusion of the desorbing pollutant molecules changes, and so the regeneration after a few cycles Brings to a standstill.
Die Erfindung wird nachstehend anhand unter Bezugnahme auf die Zeichnung näher beschrieben, in der zeigen:The invention is illustrated below with reference described in more detail on the drawing, in which:
Fig. 1 bis 4 verschiedene Ausführungsbeispiele der Erfindung. Figs. 1 to 4 different embodiments of the invention.
Die Fig. 1 bis 4 zeigen Adsorber-Vorrichtungen, die erfindungsgemäß derart gestaltet sind, daß sie eine "in-situ" Regeneration des adsorbierenden Materials ermöglichen. Hierzu liegt das adsorbierende Material in Form hohler Rohre 2 vor, die z. B. durch einen Preß-oder Sintervorgang hergestellt worden sind. Figs. 1 to 4 show adsorber devices according to the invention designed so that they allow for "in-situ" regeneration of the adsorbent material. For this purpose, the adsorbent material is in the form of hollow tubes 2 which, for. B. have been produced by a pressing or sintering process.
Um eine Erwärmung des adsorbierenden Materials bei spielsweise durch direkten Stromdurchgang zu ermögli chen, sind bei den gezeigten Ausführungsbeispielen geeignete Elektroden 1′ und 1′′ vorgesehen, an die eine Gleich- oder Wechselspannung angelegt wird. Weiterhin ist es auch möglich, das elektrisch leitende adsorbie rende Material 2 induktiv mit einer bekannten Induk tions-Heizvorrichtung zu erwärmen.In order to enable heating of the adsorbing material in example by direct current passage, suitable electrodes 1 'and 1 ''are provided in the exemplary embodiments shown, to which a direct or alternating voltage is applied. Furthermore, it is also possible to heat the electrically conductive adsorbing material 2 inductively with a known induction heating device.
Fig. 1 zeigt den prinzipiellen Aufbau einer Vorrich tung, bei der Rohre 2 als adsorbierendes Material ver wendet werden, während Fig. 2 eine Möglichkeit der Kontaktierung der Rohre 2 durch die Elektroden 1 zeigt: Durch die Beaufschlagung der Elektrode 1′ mittels einer Feder 3 in Richtung auf die Rohre 2 ergibt sich ein besonders geringer Kontaktwiderstand. Fig. 1 shows the basic structure of a Vorrich device, in which tubes 2 are used as an adsorbent material, while Fig. 2 shows a possibility of contacting the tubes 2 by the electrodes 1 : By acting on the electrode 1 'by means of a spring 3rd In the direction of the tubes 2 there is a particularly low contact resistance.
Fig. 3 zeigt ein Ausführungsbeispiel, bei dem das ad sorbierende Material in Form von Aktivkohle-Kapillaren 2′ vorliegt, in die beispielsweise lösungsmittelbela dene Luft eintritt, die dann als lösungsmittelfreie Luft austritt. Die Kapillaren 2′ sind mittels eines leitfähigen Klebers 4 mit einem aus Al, Cu oder VA bestehenden Metallring 5 verbunden, der als Elektrode dient. Fig. 3 shows an embodiment in which the ad sorbing material is in the form of activated carbon capillaries 2 ', in which, for example, solvent-laden air enters, which then exits as solvent-free air. The capillaries 2 'are connected by means of a conductive adhesive 4 with a metal ring 5 consisting of Al, Cu or VA, which serves as an electrode.
In jedem Falle kann die Regeneration des adsorbierenden Materials 2 sowohl in der eigentlichen Adsorptionsvor richtung als auch außerhalb der Adsorptionsvorrichtung erfolgen. Bei einer Regeneration des adsorbierenden Materials in der Adsorptionsvorrichtung ist selbstver ständlich sicherzustellen, daß die desorbierten Schad stoffe in geeigneter Weise aufgefangen werden.In any case, the regeneration of the adsorbing material 2 can take place both in the actual Adsorptionsvor direction and outside of the adsorption device. When the adsorbing material is regenerated in the adsorption device, it must of course be ensured that the desorbed pollutants are collected in a suitable manner.
Dies kann unmittelbar durch Anlegen eines Vakuums mit anschließender Kühlfalle oder durch Zwischenschalten einer lösungsmittelselektiven Membran gemäß Fig. 4 erfolgen, die bei dem gezeigten Ausführungsbeispiel ein lösemittelselektiver Polymerfilm 6 ist, der direkt auf das aus Aktivkohle bestehende Rohr 2 aufgetragen ist.This can be done directly by applying a vacuum with a subsequent cold trap or by interposing a solvent-selective membrane according to FIG. 4, which in the exemplary embodiment shown is a solvent-selective polymer film 6 , which is applied directly to the tube 2 consisting of activated carbon.
Die gezeigten Ausführungsbeispiele können leicht bei spielsweise dadurch hergestellt werden, daß ein in der gewünschten geometrischen Form vorliegendes Material verkokt wird. Als Ausgangsmaterial können z. B. Preßlin ge aus Kohle, extrudiertes Pech oder beliebige Polymere wie Nylon, Polyamide, Zellulose etc. verwendet werden, die in der gewünschten Form vorliegen und die unter Luftabschluß auf die Verkokungstemperatur erwärmt wer den. Bei Erreichen eines bestimmten Verkokungsgrades ergibt sich eine elektrische Leitfähigkeit, die ein ausreichendes Aufheizen von Adsorbern mit üblichen Spannungen erlaubt.The embodiments shown can easily be produced, for example, in that a desired geometric shape present material is coked. As a starting material z. B. Presslin coal, extruded pitch or any polymer such as nylon, polyamides, cellulose etc. are used, which are in the desired form and which under Air seal warmed to the coking temperature the. When a certain degree of coking is reached there is an electrical conductivity that a sufficient heating of adsorbers with usual Tensions allowed.
Unter Umständen ist es von Vorteil, wenn die während der Regenerationsphase desorbierten Schadstoffe durch einen Trägergasstrom ausgetragen werden. Der Träger gasstrom kann beispielsweise ein Inertgas oder Wasser dampf sein. Bei der Verwendung von Wasserdampf als Trägergas werden einerseits die thermische Regeneration und die Verdrängungsregeneration miteinander kombiniert und andererseits die Schadstoffe durch Kondensation besonders einfach abgeschieden. Durch die direkte Hei zung wird jedoch die Bildung von Wasserdampfkondensat in den Poren des adsorbierenden Materials verhindert, die bei den bekannten Verdrängungs-Regenerationsverfah ren die Diffusion der desorbierenden Schadstoffmoleküle behindert, und so die Regeneration nach wenigen Zyklen zum Erliegen bringt.It may be advantageous if the during during the regeneration phase a carrier gas stream are discharged. The carrier Gas flow can be, for example, an inert gas or water be steamy. When using water vapor as Carrier gas becomes thermal regeneration and combined the displacement regeneration with each other and on the other hand the pollutants through condensation deposited particularly easily. Through the direct Hei However, the formation of water vapor condensate becomes an issue prevented in the pores of the adsorbent material, which in the known displacement regeneration process ren the diffusion of the desorbing pollutant molecules hinders regeneration after a few cycles brings to a standstill.
Bei der Realisierung des erfindungsgemäßen Verfahrens ist es weiterhin von Vorteil, wenn zwei oder mehr Ad sorbersäulen verwendet werden, deren adsorbierendes Material elektrisch leitfähig ist. Durch die Verwendung von mindestens zwei Adsorbersäulen kann die Vorrichtung durch einfaches Umschalten einer bzw. mehrer Säulen wechselseitig beladen und regeneriert werden, so daß ein kontinuierlicher Betrieb der Adsorptionsvorrichtung ohne Wechseln des Adsorbens möglich ist.When implementing the method according to the invention it’s still an advantage if two or more ad sorber columns are used, their adsorbent Material is electrically conductive. By using it the device can have at least two adsorber columns by simply switching one or more columns are mutually loaded and regenerated so that continuous operation of the adsorption device is possible without changing the adsorbent.
Claims (12)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4104513A DE4104513C2 (en) | 1990-02-14 | 1991-02-14 | Adsorber |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4004533 | 1990-02-14 | ||
| DE4041911 | 1990-12-27 | ||
| DE4104513A DE4104513C2 (en) | 1990-02-14 | 1991-02-14 | Adsorber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE4104513A1 true DE4104513A1 (en) | 1991-08-29 |
| DE4104513C2 DE4104513C2 (en) | 1996-11-28 |
Family
ID=25890114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE4104513A Expired - Lifetime DE4104513C2 (en) | 1990-02-14 | 1991-02-14 | Adsorber |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE4104513C2 (en) |
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4225272A1 (en) * | 1992-07-31 | 1994-02-03 | Bluecher Gmbh | Adsorption filter for air purification or off-gases - contains adsorber granules, e.g. active carbon, fixed on a support which can be heated, e.g. electrically, to regenerate the filter |
| WO1994026661A1 (en) * | 1993-05-18 | 1994-11-24 | Kenneth Michael Holland | Regeneration of activated carbons |
| FR2709431A1 (en) * | 1993-09-03 | 1995-03-10 | Armines | Process for the regeneration of a granular adsorbent, device for use, and composite |
| EP0684071A2 (en) * | 1994-05-26 | 1995-11-29 | Corning Incorporated | Electrically heatable activated carbon bodies for adsorption and desorption applications |
| EP0745416A2 (en) * | 1995-06-02 | 1996-12-04 | Corning Incorporated | Device for removal of contaminants from fluid streams |
| DE19541918A1 (en) * | 1995-11-10 | 1997-05-15 | Mut Mikrowellen Umwelt Technol | Desorption of compounds adsorbed onto adsorbents |
| WO1997026068A1 (en) * | 1995-09-28 | 1997-07-24 | Calgon Carbon Corporation | Method and apparatus for continuous adsorption of adsorbable contaminates and adsorber |
| US5759496A (en) * | 1995-12-21 | 1998-06-02 | Corning Incorporated | Apparatus for removing VOC's from an exhaust gas stream |
| WO1998033021A1 (en) | 1997-01-23 | 1998-07-30 | Calgon Carbon Corporation | Method and means for purifying air with a regenerable carbon cloth sorbent |
| EP0945176A2 (en) * | 1998-03-26 | 1999-09-29 | Chmiel, Horst, Prof. Dr.-Ing.habil. | Fibrous adsorbents |
| EP0960853A1 (en) * | 1998-05-27 | 1999-12-01 | Chmiel, Horst, Prof. Dr.-Ing.habil. | Regenerative adsorber and process for operating a regenerative adsorber |
| DE19823562A1 (en) * | 1998-05-27 | 1999-12-02 | Umweltkompatible Prozestechnik | Web of carbon fiber with electrically insulating layer rolled into compact |
| WO2000038831A1 (en) * | 1998-12-31 | 2000-07-06 | Hexablock, Inc. | Magneto absorbent |
| DE19923929A1 (en) * | 1999-05-27 | 2000-11-30 | Horst Chmiel | Regeneration of adsorbent filter by electrical heating in reverse gas flow to drive out residues and odors under a reversed flow of the fluid medium |
| EP1170050A1 (en) * | 2000-07-06 | 2002-01-09 | M+W Zander Facility Engineering GmbH | Method for regenerating electrically conductive adsorbents charged with organic substances |
| WO2002072240A2 (en) * | 2001-03-13 | 2002-09-19 | Carbon Technologies Nv | Method and equipment for removing volatile compounds from air |
| US6454834B1 (en) | 2000-08-01 | 2002-09-24 | 3M Innovative Properties Company | Regenerable air cleaning device |
| EP1321177A2 (en) * | 2001-12-21 | 2003-06-25 | M+W Zander Facility Engineering GmbH | Adsorber, filter module, filter unit and installation for purification of raw gases |
| EP0696473B1 (en) * | 1994-08-12 | 2005-11-02 | Corning Incorporated | Method of making an activated carbon supported catalyst |
| US7316731B2 (en) | 2001-12-19 | 2008-01-08 | Mcgill University | Adsorption of contaminants from gaseous stream and in situ regeneration of sorbent |
| WO2008110820A1 (en) | 2007-03-14 | 2008-09-18 | Nano-Porous Solutions Limited | Regenerable adsorption unit |
| US7947114B2 (en) | 2005-08-05 | 2011-05-24 | Ntnu Technology Transfer As | Carbon membranes |
| CN106369942A (en) * | 2016-10-30 | 2017-02-01 | 冯大兰 | Automatic moisture absorption device |
| CN106524673A (en) * | 2016-10-30 | 2017-03-22 | 曹云霞 | Dryer |
| EP4249112A1 (en) * | 2022-02-23 | 2023-09-27 | Hamilton Sundstrand Corporation | Regenerable organic contaminant controller in space application |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014010686B4 (en) | 2014-07-22 | 2016-12-22 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Internal combustion engine with tank ventilation system and operating method |
| KR102267445B1 (en) * | 2016-02-15 | 2021-06-18 | 질리카 페어파렌스테크니크 게엠베하 | Device and method for treating a gas laden with pollutants |
| DE202016000949U1 (en) | 2016-02-15 | 2016-03-17 | Silica Verfahrenstechnik Gmbh | Apparatus for treating a contaminated gas |
| DE102017001114B4 (en) * | 2016-02-15 | 2022-08-18 | Silica Verfahrenstechnik Gmbh | Device and method for treating a gas contaminated with pollutants |
| KR102124000B1 (en) | 2018-11-12 | 2020-06-17 | 한국에너지기술연구원 | Module type absorption system using absorption module unit |
| KR102158053B1 (en) | 2018-11-12 | 2020-09-28 | 한국에너지기술연구원 | Absorption apparatus using Active carbon fiber |
| CN110203993B (en) * | 2019-06-12 | 2022-02-08 | 江苏首标环保科技有限公司 | Composite filter element capable of being repeatedly used under microwave condition, preparation method and activation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1980002553A1 (en) * | 1979-05-11 | 1980-11-27 | O Mihara | Method of regeneration of activated carbon and apparatus therefor |
| US4322394A (en) * | 1977-10-31 | 1982-03-30 | Battelle Memorial Institute | Adsorbent regeneration and gas separation utilizing microwave heating |
-
1991
- 1991-02-14 DE DE4104513A patent/DE4104513C2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4322394A (en) * | 1977-10-31 | 1982-03-30 | Battelle Memorial Institute | Adsorbent regeneration and gas separation utilizing microwave heating |
| WO1980002553A1 (en) * | 1979-05-11 | 1980-11-27 | O Mihara | Method of regeneration of activated carbon and apparatus therefor |
Non-Patent Citations (2)
| Title |
|---|
| JP 62-110747 (A), ref. in Patents Abstracts of Japan, C-454, 23.10.87, Vol. 11, Nr. 326 * |
| KIENLE, H. - BÄDER, E.: Aktivkohle und ihre ind. Anwendung, Ferd. Enke - Verlag, Stuttgart 1980, S. 175 * |
Cited By (48)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4225272A1 (en) * | 1992-07-31 | 1994-02-03 | Bluecher Gmbh | Adsorption filter for air purification or off-gases - contains adsorber granules, e.g. active carbon, fixed on a support which can be heated, e.g. electrically, to regenerate the filter |
| DE4225272B4 (en) * | 1992-07-31 | 2006-01-19 | Mhb Filtration Gmbh & Co. Kg | adsorption |
| WO1994026661A1 (en) * | 1993-05-18 | 1994-11-24 | Kenneth Michael Holland | Regeneration of activated carbons |
| FR2709431A1 (en) * | 1993-09-03 | 1995-03-10 | Armines | Process for the regeneration of a granular adsorbent, device for use, and composite |
| EP0684071A3 (en) * | 1994-05-26 | 1996-01-24 | Corning Inc | Electrically heatable activated carbon bodies for adsorption and desorption applications. |
| AU689870B2 (en) * | 1994-05-26 | 1998-04-09 | Corning Incorporated | Electronically heatable activated carbon bodies for adsorption and desorption applications |
| EP0684071A2 (en) * | 1994-05-26 | 1995-11-29 | Corning Incorporated | Electrically heatable activated carbon bodies for adsorption and desorption applications |
| KR100362494B1 (en) * | 1994-05-26 | 2003-03-19 | 코닝 인코포레이티드 | Electrically heatable desorption activated carbon body and its manufacturing method |
| EP0696473B1 (en) * | 1994-08-12 | 2005-11-02 | Corning Incorporated | Method of making an activated carbon supported catalyst |
| EP0745416A2 (en) * | 1995-06-02 | 1996-12-04 | Corning Incorporated | Device for removal of contaminants from fluid streams |
| EP0745416A3 (en) * | 1995-06-02 | 1997-08-13 | Corning Inc | Device for removal of contaminants from fluid streams |
| US5750026A (en) * | 1995-06-02 | 1998-05-12 | Corning Incorporated | Device for removal of contaminants from fluid streams |
| WO1997026068A1 (en) * | 1995-09-28 | 1997-07-24 | Calgon Carbon Corporation | Method and apparatus for continuous adsorption of adsorbable contaminates and adsorber |
| DE19541918A1 (en) * | 1995-11-10 | 1997-05-15 | Mut Mikrowellen Umwelt Technol | Desorption of compounds adsorbed onto adsorbents |
| DE19541918C2 (en) * | 1995-11-10 | 2001-09-06 | Mut Mikrowellen Umwelt Technol | Process for desorption of compounds bound to adsorbent and desorption applicator |
| US5759496A (en) * | 1995-12-21 | 1998-06-02 | Corning Incorporated | Apparatus for removing VOC's from an exhaust gas stream |
| WO1998033021A1 (en) | 1997-01-23 | 1998-07-30 | Calgon Carbon Corporation | Method and means for purifying air with a regenerable carbon cloth sorbent |
| EP0954725A1 (en) * | 1997-01-23 | 1999-11-10 | Calgon Carbon Corporation | Method and means for purifying air with a regenerable carbon cloth sorbent |
| US5912423A (en) * | 1997-01-23 | 1999-06-15 | Calgon Carbon Corporation | Method and means for purifying air with a regenerable carbon cloth sorbent |
| EP0945176A3 (en) * | 1998-03-26 | 1999-12-29 | Chmiel, Horst, Prof. Dr.-Ing.habil. | Fibrous adsorbents |
| DE19813272A1 (en) * | 1998-03-26 | 1999-09-30 | Horst Chmiel | Fibrous adsorbents |
| DE19813272C2 (en) * | 1998-03-26 | 2001-09-06 | Horst Chmiel | Fibrous adsorbents and their use for cleaning fluids |
| EP0945176A2 (en) * | 1998-03-26 | 1999-09-29 | Chmiel, Horst, Prof. Dr.-Ing.habil. | Fibrous adsorbents |
| DE19823561A1 (en) * | 1998-05-27 | 1999-12-02 | Horst Chmiel | Flat adsorbent material |
| DE19823562A1 (en) * | 1998-05-27 | 1999-12-02 | Umweltkompatible Prozestechnik | Web of carbon fiber with electrically insulating layer rolled into compact |
| EP0960853A1 (en) * | 1998-05-27 | 1999-12-01 | Chmiel, Horst, Prof. Dr.-Ing.habil. | Regenerative adsorber and process for operating a regenerative adsorber |
| WO2000038831A1 (en) * | 1998-12-31 | 2000-07-06 | Hexablock, Inc. | Magneto absorbent |
| US6706097B2 (en) | 1998-12-31 | 2004-03-16 | Hexablock, Inc. | Molecular separator apparatus |
| DE19923929A1 (en) * | 1999-05-27 | 2000-11-30 | Horst Chmiel | Regeneration of adsorbent filter by electrical heating in reverse gas flow to drive out residues and odors under a reversed flow of the fluid medium |
| DE19923929B4 (en) * | 1999-05-27 | 2004-12-02 | Chmiel, Horst, Prof.Dr.-Ing.Habil. | Process for the regeneration of electrically conductive adsorbers and device for carrying out the process |
| EP1170050A1 (en) * | 2000-07-06 | 2002-01-09 | M+W Zander Facility Engineering GmbH | Method for regenerating electrically conductive adsorbents charged with organic substances |
| US6458186B1 (en) | 2000-07-06 | 2002-10-01 | M+W Zander Facility Engineering Gmbh | Method for regenerating electrically conducting adsorbents laden with organic substances |
| US6454834B1 (en) | 2000-08-01 | 2002-09-24 | 3M Innovative Properties Company | Regenerable air cleaning device |
| WO2002072240A3 (en) * | 2001-03-13 | 2002-11-14 | Carbon Technologies Nv | Method and equipment for removing volatile compounds from air |
| WO2002072240A2 (en) * | 2001-03-13 | 2002-09-19 | Carbon Technologies Nv | Method and equipment for removing volatile compounds from air |
| US7316731B2 (en) | 2001-12-19 | 2008-01-08 | Mcgill University | Adsorption of contaminants from gaseous stream and in situ regeneration of sorbent |
| US6939395B2 (en) | 2001-12-21 | 2005-09-06 | M+W Zander Facility Engineering Gmbh | Adsorber for cleaning raw gases, filter module comprising such an adsorber, filter unit comprising at least two such filter modules, and device for conditioning outer air or for treatment of escaping air with such filter modules |
| EP1321177A3 (en) * | 2001-12-21 | 2004-01-14 | M+W Zander Facility Engineering GmbH | Adsorber, filter module, filter unit and installation for purification of raw gases |
| EP1321177A2 (en) * | 2001-12-21 | 2003-06-25 | M+W Zander Facility Engineering GmbH | Adsorber, filter module, filter unit and installation for purification of raw gases |
| US7947114B2 (en) | 2005-08-05 | 2011-05-24 | Ntnu Technology Transfer As | Carbon membranes |
| WO2008110820A1 (en) | 2007-03-14 | 2008-09-18 | Nano-Porous Solutions Limited | Regenerable adsorption unit |
| US20100035751A1 (en) * | 2007-03-14 | 2010-02-11 | Semali Priyanthi Perera | Regenerable adsorption unit |
| US8540810B2 (en) | 2007-03-14 | 2013-09-24 | Nano-Porous Solutions Limited | Regenerable adsorption unit |
| US20140020560A1 (en) * | 2007-03-14 | 2014-01-23 | Nano-Porous Solutions Limited | Regenerable adsorption unit |
| CN106369942A (en) * | 2016-10-30 | 2017-02-01 | 冯大兰 | Automatic moisture absorption device |
| CN106524673A (en) * | 2016-10-30 | 2017-03-22 | 曹云霞 | Dryer |
| EP4249112A1 (en) * | 2022-02-23 | 2023-09-27 | Hamilton Sundstrand Corporation | Regenerable organic contaminant controller in space application |
| US11826711B2 (en) | 2022-02-23 | 2023-11-28 | Hamilton Sundstrand Corporation | Regenerable organic contaminant controller in space application |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4104513C2 (en) | 1996-11-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE4104513C2 (en) | Adsorber | |
| DE69527797T2 (en) | ELECTRICALLY CONDUCTIVE SORPTION SYSTEM AND METHOD | |
| EP3213807B1 (en) | Device and method for treating a gas contaminated with pollutants | |
| US5628819A (en) | Method and apparatus for continuous adsorption of adsorbable contaminates and adsorber regeneration | |
| US10173172B2 (en) | Device and method for treating a gas laden with pollutants | |
| US6964695B2 (en) | Method and equipment for removing volatile compounds from air | |
| AU5922898A (en) | Method and means for purifying air with a regenerable carbon cloth sorbent | |
| EP2544794A1 (en) | Method for the absorptive drying of purified biogas and for regenerating laden adsorbents | |
| DE3412007A1 (en) | METHOD FOR CLEANING WORKPIECES BY MEANS OF A LIQUID SOLVENT | |
| DE3533313C2 (en) | ||
| DE4225272B4 (en) | adsorption | |
| DE69126708T2 (en) | Device for the treatment of fluids with an adsorption structure of layered layers, which are spaced from one another, and regeneration by the Joule effect | |
| EP0561484B1 (en) | Process and apparatus for the cleaning of exhaust air cointaining noxious substances by heterogeneous catalysis | |
| TWI278341B (en) | Regeneration process for electric current-conducting adsorbents loaded with organic substances | |
| DE3826237C2 (en) | METHOD FOR DESORPING AN ADSORPTION AGENT LOADED WITH POLLUTANTS, AND SYSTEM FOR CARRYING OUT THE METHOD | |
| EP0960853B1 (en) | Regenerative adsorber and process for operating a regenerative adsorber | |
| EP0049782B1 (en) | Process for the cyclical desorption of adsorbents cyclically charged with absorbates | |
| DE2107717A1 (en) | Regeneration reactor for adsorbents - heated by microwave | |
| DE202016000949U1 (en) | Apparatus for treating a contaminated gas | |
| DE3303423C2 (en) | Process for the regeneration of the adsorber units in the low-water recovery of solvents from a gas stream and device for carrying out this process | |
| DE19823562A1 (en) | Web of carbon fiber with electrically insulating layer rolled into compact | |
| DE19613326A1 (en) | Recovery of organic solvents in exhaust air | |
| CA1160988A (en) | Apparatus for regenerating active carbon | |
| DE19548281B4 (en) | adsorption | |
| DE19513376A1 (en) | Recovery of organic solvents in exhaust air |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| 8125 | Change of the main classification |
Ipc: B01J 20/20 |
|
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8327 | Change in the person/name/address of the patent owner |
Owner name: CHMIEL, HORST, PROF. DR.-ING., 80689 MUENCHEN, DE |
|
| R071 | Expiry of right |