DE2434297A1 - GRAINY FILTER MATERIAL - Google Patents

GRAINY FILTER MATERIAL

Info

Publication number
DE2434297A1
DE2434297A1 DE19742434297 DE2434297A DE2434297A1 DE 2434297 A1 DE2434297 A1 DE 2434297A1 DE 19742434297 DE19742434297 DE 19742434297 DE 2434297 A DE2434297 A DE 2434297A DE 2434297 A1 DE2434297 A1 DE 2434297A1
Authority
DE
Germany
Prior art keywords
filter material
activated carbon
filter
aerated concrete
air
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
Application number
DE19742434297
Other languages
German (de)
Other versions
DE2434297C3 (en
DE2434297B2 (en
Inventor
Walter Dix
Eugen Mundinger
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.)
SUEDDEUTSCHE METALLWERKE GmbH
Original Assignee
SUEDDEUTSCHE METALLWERKE GmbH
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 SUEDDEUTSCHE METALLWERKE GmbH filed Critical SUEDDEUTSCHE METALLWERKE GmbH
Priority to DE19742434297 priority Critical patent/DE2434297C3/en
Priority to CH805275A priority patent/CH589465A5/xx
Priority to FR7522268A priority patent/FR2278382A1/en
Priority to SE7508142A priority patent/SE7508142L/en
Priority to BE158354A priority patent/BE831432A/en
Priority to NL7508490A priority patent/NL7508490A/en
Publication of DE2434297A1 publication Critical patent/DE2434297A1/en
Publication of DE2434297B2 publication Critical patent/DE2434297B2/en
Application granted granted Critical
Publication of DE2434297C3 publication Critical patent/DE2434297C3/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/02—Loose filtering material, e.g. loose fibres
    • B01D39/06—Inorganic material, e.g. asbestos fibres, glass beads or fibres
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Separation Of Gases By Adsorption (AREA)
  • Treating Waste Gases (AREA)
  • Filtering Materials (AREA)

Description

Süddeutsche Metallwerke GmbH 24 3 A 29 7Süddeutsche Metallwerke GmbH 24 3 A 29 7

Walldorf/BadenWalldorf / Baden

j Mp.-Nr. 601/74 Mannheim, den 15. Juli 1974j Mp. no. 601/74 Mannheim, July 15, 1974

ZFE/P1-Wg/BtZFE / P1-Wg / Bt

ι Körniges Filtermaterial ι Granular filter material

!!

Die Erfindung betrifft ein körniges Filtermaterial zur Luftfilterung. The invention relates to a granular filter material for filtering air.

Zum Ausfiltern von Geruchs- und/oder Schadstoffen aus Luftströmen hat sich Aktivkohle als Filtermedium bewährt. Zum Einsatz ge-. langt diese Aktivkohle meist in Form von Körnern, die in Filtergehäusen als lose Schüttung eingefüllt und gehalten sind. Um eine gute Adsorption der Geruchs- und/oder Schadstoffe zu erzielen, ist eine -gewisse Verweildauer der Luft im Filterbett erforderlich. Diese Verweildauer ist abhängig von der Dicke des Filterbettes und der Luftgeschv/indigkeit, und zwar so, daß bei kleiner Luftgeschwindigkeit nur eine gBringe Dicke des Filterbettes erforderlich ist. Der Luftwiderstand des Filters ist ebenfalls von der Luftgeschv/indigkeit und der Schichtdicke des Filterbettes abhängig. In vielen Fällen ist man aus Platzgründen gezwungen, gegebene Luftmengen mit Filtern kleiner Flächenausdehnung und großer Schichtdicke zu filtern, was erhebliche Druckverluste für die durchströmende Luft bedingt. Die Folge ist, daß ein starkes, hohe Stromkosten verursachendes Gebläse für die Luftförderung eingesetzt werden muß.Activated carbon has proven itself as a filter medium for filtering out odors and / or pollutants from air flows. For use. this activated charcoal usually comes in the form of grains that are filled and held in the filter housing as a loose fill. To a To achieve good adsorption of the odorous and / or pollutants, a certain dwell time of the air in the filter bed is necessary. This dwell time depends on the thickness of the filter bed and the air velocity, in such a way that with smaller Air speed only required a large thickness of the filter bed is. The air resistance of the filter also depends on the air velocity and the layer thickness of the filter bed addicted. In many cases, for reasons of space, you are forced to use filters with a small area and To filter a large layer thickness, which causes considerable pressure losses for the air flowing through. The consequence is that a strong, high electricity costs causing blower must be used for the air delivery.

Wegen des aufwendigen Herstellungsprozesses ist Aktivkohle teuer.Because of the complex manufacturing process, activated carbon is expensive.

. Da diese nach einer gewissen Betriebszeit verbraucht ist und ausgetauscht v/erden muß, ist der Preis für die Aktivkohle ein nicht zu vernachlässigender Betriebskostenfaktor für Filteranlagen. Eine Reaktivierung der Aktivkohle lohnt erst bei sehr. Since this is used up after a certain operating time and exchanged v / earth must, the price for the activated carbon is a non-negligible operating cost factor for filter systems. A reactivation of the activated carbon is only worthwhile with very

„.;,, .... ... .... 509886/0966".; ,, .... ... .... 509886/0966

601/74601/74

großen Mengen, so daß von dieser Möglichkeit wenig Gebrauch gemacht wird. Eine Folge der hohen Kosten für die Aktivkohle ! ist, daß das Filtermaterial oft nicht rechtzeitig ausgewechselt wird und Gerüche oder Schadstoffe ungehindert passieren können.large quantities, so that little use is made of this possibility. A consequence of the high costs for the activated carbon ! is that the filter material is often not replaced in time and odors or pollutants can pass unhindered.

: Der Erfindung liegt die Aufgabe zugrunde, ein Filtermaterial: The invention is based on the object of a filter material

der eingangs genannten Art anzugeben, dessen WirtschaftIich- ! keit gesteigert ist.of the type mentioned at the beginning, whose economic ! speed is increased.

Gelöst wird diese Aufgabe bei einem_:körnigen Filtermaterial zur Luftfilterung durch eine körnige Mischung aus Aktivkohle . und Gasbeton. Die chemische Analyse von Gasbeton zeigt einen Aufbau ähnlich dem der zeolithischen Molekularsiebe, nämlichThis object is achieved in einem_: granular filter material for filtering air by a mixture of granular activated carbon. and aerated concrete. The chemical analysis of aerated concrete shows a structure similar to that of zeolitic molecular sieves, namely

SiO2 . Al2O, . Fe2O5 . MgOSiO 2 . Al 2 O,. Fe 2 O 5 . MgO

usv/. Dieser Aufbau bewirkt eine zusätzliche katalytische Effektivität des Gasbetons als Filtermaterial.usv /. This structure causes an additional catalytic effectiveness of aerated concrete as a filter material.

Außerdem bewirkt der Aktivkohle beigemischte Gasbeton, z.B. in Granulatform, eine Verbesserung der Speicherfähigkeit von damit versehenen Filtern für Stoffe, für welche Aktivkohle, z.B. in Form von Granulat, eine geringere Adsorptionsfähigkeit hat. Das betrifft z.B. Hydrazin. Gasbeton hat eine Feinporosität bis etwa zu ein Mikron herunter und ähnelt in seinem inneren Aufbau der Aktivkohle, und hat daher, was seine Speicherfähigkeit angeht, annähernd die gleiche Wirkung wie die Aktivkohle. Der Wirkungsbereich des Filtermaterialgemischs aus körniger Aktivkohle und körnigem Gasbeton wird damit erweitert und verbessert.In addition, aerated concrete added to the activated carbon, e.g. in granulate form, improves the storage capacity of it equipped filters for substances for which activated carbon, e.g. in the form of granules, has a lower adsorption capacity. That relates, for example, to hydrazine. Aerated concrete has a fine porosity down to about one micron and is similar in its internal structure activated carbon, and therefore has almost the same effect as activated carbon in terms of its storage capacity. Of the Effective area of the filter material mixture made of granular activated carbon and granular aerated concrete is thus expanded and improved.

Außerdem ergibt sich eine wesentliche Verringerung des Luftwiderstandes von etwa 20 bis 50 $> gegenüber Filtermaterial aus reiner Aktivkohle.In addition, there is a significant reduction in air resistance of about $ 20 to $ 50 compared to filter material made from pure activated carbon.

609886/0966609886/0966

601/74601/74

Ganz erheblich ist die Verminderung der Kosten für das erfindungs-. gemäße Filtermaterial, denn der Kostenaufwand von körnigem Gasbeton zu Aktivkohle liegt etwa bei 1 : 100.The reduction in costs for the inventive. appropriate filter material, because the cost of granular aerated concrete to activated carbon is around 1: 100.

Ein besonders vorteilhaftes Filtermateril in technischer und preislicher Hinsicht ist dann gegeben, wenn der VolumenanteilA particularly advantageous filter material in terms of technology and price is given when the volume fraction

an Aktivkohle etwa doppelt so groß ist wie der Volumenanteil ! an Gasbeton.of activated carbon is about twice as large as the volume fraction! on aerated concrete.

Insgesamt gesehen wird durch den Einsatz des erfindungsgemäßen Filtermaterials die Wirtschaftlichkeit von Luftfiltergeräten gesteigert, einmal durch den geringeren Luftwiderstand, was kleinere und damit preisgünstigere Gebläseeinrichtungen erfordert und damit verringerte Stromkosten bedingt, die Speicherfähigkeit wird erweitert und durch katalytische Wirksamkeit ergänzt., und nicht zuletzt werden die Kosten des Filtermaterials beachtlich reduziert, so daß die Kosten für den Austausch des verbrauchten Filtermaterials nicht wesentlich zu Buche schlagen.Overall, through the use of the invention Filter material increases the profitability of air filter devices, on the one hand due to the lower air resistance, what Requires smaller and thus cheaper fan devices and thus reduced electricity costs, the storage capacity is expanded and supplemented by catalytic effectiveness, and last but not least, the cost of the filter material considerably reduced, so that the costs for replacing the used filter material do not have a significant impact.

-A-509886/096G -A- 509886 / 096G

Claims (2)

. 601/74. 601/74 PatentansprücheClaims !Λ j Körniges Filtermaterial zur luftfilterung, gekennzeichnet durch eine körnige Mischung aus Aktivkohle und Gasbeton ! Λ j Granular filter material for air filtering, characterized by a granular mixture of activated carbon and aerated concrete 2. Filtermaterial nach Anspruch 1, dadurch gekennzeichnet," daß der Tolumenanteil an Aktivkohle etwa doppelt so groß ist wie der Yolumenanteil an Gasbeton.2. Filter material according to claim 1, characterized in that "that the tolumen content of activated carbon is about twice as large is like the volume fraction of aerated concrete. 509886/0966509886/0966
DE19742434297 1974-07-17 1974-07-17 Granular filter material Expired DE2434297C3 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE19742434297 DE2434297C3 (en) 1974-07-17 1974-07-17 Granular filter material
CH805275A CH589465A5 (en) 1974-07-17 1975-06-20
FR7522268A FR2278382A1 (en) 1974-07-17 1975-07-16 Granular material for removing odours from gases - used in packed filter bed to improve filtering characteristics and reduce cost
SE7508142A SE7508142L (en) 1974-07-17 1975-07-16 GRAIN FILTER MATERIAL.
BE158354A BE831432A (en) 1974-07-17 1975-07-16 AIR FILTRATION GRANULAR MATERIAL
NL7508490A NL7508490A (en) 1974-07-17 1975-07-16 PROCEDURE FOR MANUFACTURING A FILTER MATERIAL, SO OBTAINED GRAINY FILTER MATERIAL AND PROCEDURE FOR FILTERING AIR.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742434297 DE2434297C3 (en) 1974-07-17 1974-07-17 Granular filter material

Publications (3)

Publication Number Publication Date
DE2434297A1 true DE2434297A1 (en) 1976-02-05
DE2434297B2 DE2434297B2 (en) 1980-04-03
DE2434297C3 DE2434297C3 (en) 1980-11-27

Family

ID=5920774

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19742434297 Expired DE2434297C3 (en) 1974-07-17 1974-07-17 Granular filter material

Country Status (6)

Country Link
BE (1) BE831432A (en)
CH (1) CH589465A5 (en)
DE (1) DE2434297C3 (en)
FR (1) FR2278382A1 (en)
NL (1) NL7508490A (en)
SE (1) SE7508142L (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3640953A1 (en) * 1986-11-29 1988-06-09 Hoelter Heinz Chemisorption filter compositions for separating off occupied space odours, preferably tobacco smoke
DE3728423A1 (en) * 1987-08-26 1989-03-09 Hoelter Heinz Filter for eliminating bacteria, viruses and air pollutants, preferably for occupied spaces
WO1996033795A1 (en) * 1995-04-28 1996-10-31 Otto Luft- Und Klimatechnik Gmbh & Co. Kg Process for purifying gas streams
DE19600483A1 (en) * 1996-01-09 1997-07-10 Eberhard Wistuba Odour control during composting

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3717848A1 (en) * 1987-05-27 1988-12-08 Rwk Rhein Westfael Kalkwerke Inorganic material and process for the production thereof
DE59203144D1 (en) * 1991-01-30 1995-09-14 Otto Luft Klimatech Gmbh Biofilter and process for its manufacture.
CN107930334A (en) * 2017-11-28 2018-04-20 芜湖上水源环保科技有限公司 A kind of composite material and preparation method thereof of high-efficient purification room air

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3640953A1 (en) * 1986-11-29 1988-06-09 Hoelter Heinz Chemisorption filter compositions for separating off occupied space odours, preferably tobacco smoke
DE3728423A1 (en) * 1987-08-26 1989-03-09 Hoelter Heinz Filter for eliminating bacteria, viruses and air pollutants, preferably for occupied spaces
WO1996033795A1 (en) * 1995-04-28 1996-10-31 Otto Luft- Und Klimatechnik Gmbh & Co. Kg Process for purifying gas streams
DE19600483A1 (en) * 1996-01-09 1997-07-10 Eberhard Wistuba Odour control during composting

Also Published As

Publication number Publication date
DE2434297C3 (en) 1980-11-27
CH589465A5 (en) 1977-07-15
FR2278382A1 (en) 1976-02-13
DE2434297B2 (en) 1980-04-03
SE7508142L (en) 1976-01-19
NL7508490A (en) 1976-01-20
BE831432A (en) 1975-11-17

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Legal Events

Date Code Title Description
OGA New person/name/address of the applicant
C3 Grant after two publication steps (3rd publication)
8339 Ceased/non-payment of the annual fee