GB2285044A - Method and apparatus for removing organic vapours from a gas stream - Google Patents
Method and apparatus for removing organic vapours from a gas stream Download PDFInfo
- Publication number
- GB2285044A GB2285044A GB9424984A GB9424984A GB2285044A GB 2285044 A GB2285044 A GB 2285044A GB 9424984 A GB9424984 A GB 9424984A GB 9424984 A GB9424984 A GB 9424984A GB 2285044 A GB2285044 A GB 2285044A
- Authority
- GB
- United Kingdom
- Prior art keywords
- porous material
- gas stream
- vapours
- catalytic
- organic vapours
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/07—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material
-
- 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
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/02—Heating arrangements using combustion heating
- F26B23/022—Heating arrangements using combustion heating incinerating volatiles in the dryer exhaust gases, the produced hot gases being wholly, partly or not recycled into the drying enclosure
- F26B23/024—Heating arrangements using combustion heating incinerating volatiles in the dryer exhaust gases, the produced hot gases being wholly, partly or not recycled into the drying enclosure by means of catalytic oxidation
-
- 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
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/25—Coated, impregnated or composite adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/30—Physical properties of adsorbents
- B01D2253/34—Specific shapes
-
- 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
-
- 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
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
-
- 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
- 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
- B01D53/06—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 moving adsorbents, e.g. rotating beds
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Treating Waste Gases (AREA)
Abstract
A method for removing organic vapours from a gas stream comprises collecting said organic vapours upon a porous material, which may be a belt (13) of carbon fibre material, removing said porous material from said gas stream and then oxidising said organic vapours by contacting then with a catalytic infra-red heater (16). Apparatus for carrying out this method are also claimed. <IMAGE>
Description
Method and apparatus for removing organic vapours from gaseous streams.
The present invention relates to a method of removing organic vapours from gaseous streams, for example for removing solvent vapours arising from the drying and curing of paints and inks. The invention further comprises apparatus suitable for carrying out that method.
The solvent vapours produced by drying and curing paints or inks can present a particular problem for a paint spray operator, for example. Such vapours may be toxic and, often, flammable, thus presenting a hazard which must be controlled.
A relatively recent innovation in the field of paint curing and drying has been the use of catalytic infra-red heaters for providing the heat required to dry and cure paint. Such heaters offer a number of advantages over conventional radiant heaters because, once brought up to working temperature, they do not require electric power. They may emit infra-red radiation of a broad spectrum of wavelengths towards the long wavelength end of the infra-red spectrum, which are preferentially absorbed by organic materials. These heaters operate by passing an organic gas, such as butane for example, over a platinum-based catalyst in the presence of oxygen. The organic gas is converted by the catalyst to carbon dioxide and water vapour and the reaction causes the long-wave infra-red heat to be emitted.
Such catalysts are also capable of reducing the solvent concentration around paint drying operations because the organic solvent vapours are oxidised on contact with the catalyst to carbon dioxide and water vapour in the same way as the fuel gas.
The inherent safety and simplicity of using an infra-red catalytic heater for destroying solvent vapours makes it desirable to use such heaters for cleaning gaseous effluent streams which are contaminated with organic vapours such as solvent vapours. However, when the catalyst is placed in a gas stream, the cooling effect of the moving gas brings the temperature of the catalyst down below its effective operating temperature and so the catalyst becomes inoperative.
It is an object of the present invention to provide a method of using a catalytic infra-red heater for removing organic vapours from a gaseous stream and also to provide an apparatus for putting the method into effect.
According to the invention, a method of removing organic vapours from a gas stream comprises collecting said organic vapours upon a porous material, removing said porous material from said gas stream and then oxidising said organic vapours by contacting said vapours with a catalytic infra-red heater.
In this way, the benefits of using a catalytic infra-red heater are realised under conditions in which the catalyst is able to operate. The method is particularly suitable for cleaning air-borne gaseous effluent streams such as the exhaust gases from a paint-spray booth ventilation system, for example.
The porous material may be removed from the gas stream slowly and continuously or may be left in a stationary position in the gas stream for a period of time before being replaced by a fresh piece of porous material.
Apparatus according to the invention for removing organic vapours from a gas stream comprises a porous material, support means whereby said porous material may be supported in a gas stream, a catalytic infra-red heater and means to convey organic vapours from the porous material into contact with said catalytic infra-red heater.
The catalytic infra-red heater used is preferably of the type which is able to use oxygen present in the air surrounding it. This is because these naturally oxygenated catalytic heaters do not provide an ignition source which could ignite the solvent vapours because the oxidation reaction occurs at relatively low temperatures e.g. about 350-6000C; that is, their operation is flameless.
The catalytic heaters of the forced oxygenated type operate at higher temperatures, above the ignition temperatures of the fuel-air mixture which forms the reactants, and they glow during use. A suitable catalytic heater for this use is a platinum based catalytic heater of the type sold by BRUEST INDUSTRIES
INC, for example.
The porous material is preferably of a type which can attract and retain organic vapours preferentially. Carbon is especially preferred because organic materials may be absorbed to some degree on to a carbon surface and it is also resistant to the temperatures employed in the method. The preferred material is a spun carbon fibre supplied in the form of a mat or non-woven fabric similar to a felt material, or as a woven fabric, because in these forms it exposes a large surface area to the vapours and is easily handled. Suitable alternative materials to carbon may include granular organic materials e.g. dough-based materials, which are capable of absorbing organic vapours to at least some extent.
In a preferred embodiment the porous material comprises a non-woven spun carbon fibre material in the form of a continuous belt. The non-woven carbon fibre material is preferably attached to a woven fabric backing e.g. by sewing, for strength and durability. This belt of carbon material is arranged to pass across a gaseous stream of air laden with solvent vapours. The belt also passes a catalytic infra-red heater panel which is located away from the gas stream. The solvent vapour is then conveyed from the carbon material into contact with the catalytic heater, preferably by means of a gas pressure differential set up between the belt and the heater. Preferably this is achieved by providing a draught of air, for example, behind the belt as it passes in front of a catalytic heater. In this way the porous material of the belt is cleaned of solvent vapour in one part of its cycle and is loaded with organic vapours in another part.
As an alternative, the belt of carbon material may be formed from a woven carbon fibre, which is more resistant to damage by shredding, for example, than the non-woven material.
If a granular porous material is to be used then it may conveniently be mounted in a layer behind a perforated web or mesh or between two such webs or meshes. Panels of mesh which enclose the granular material may then be secured together in a flexible manner to form a type of continuous belt which can be moved through a gas stream.
In a non-preferred alternative, panels of absorbtive material such as carbon blocks are mounted upon a belt of fibrous porous material.
The rate at which the belt cycles through the gas stream and the regeneration area is preferably controllable. More preferably the rate is controlled automatically to be in proportion to the velocity of the gas stream or the concentration of the organic vapours in the gas stream. It will be understood that a higher concentration of vapour, for example, may require the movement of the belt to be faster than that used at a lower concentration of vapour.
In an alternative arrangement, the apparatus comprises a band of porous material supported around the circumference of a substantially circular frame which may be arranged horizontally in a gas stream to rotate about a vertical axis. In this form, the surface area of the porous material in contact with the gas stream is greater than for the equivalent length of porous material presented as a flat belt The space within the frame is preferably divided into two areas by a stationary vertical wall placed substantially perpendicularly to the direction of flow of the gas stream to be cleaned. The space in front of the wall, i.e. facing towards the source of the gas stream, contains gas which has passed through the porous material and which therefore contains a reduced concentration of organic vapours compared with the source gas stream.
This cleaned gas may be conveniently vented.
The catalytic infra-red heater or heaters is preferably located behind the frame, i.e. near that part of the frame which is furthest from the gas stream source, and facing the frame. The part of the space within the frame which is located behind the stationary vertical wall may be supplied with air or gas under pressure so that as the air or gas flows through the porous material, organic vapours which are absorbed on the material are drawn away from the porous material and into contact with the catalytic heaters, where they are destroyed.
Thus, as the frame rotates slowly about the vertical axis, organic vapours are absorbed upon the porous material which is then carried around the rotation path to be regenerated and thence to return into the path of the gas stream for absorption of more organic vapours
The diameter of the circular frame is preferably such as to completely or nearly fill the path of the gas stream to be cleaned.
More than one frame may be used, preferably arranged directly on top of each other so that the total height is substantially the same as the "height" of the gas stream to be cleaned, e.g. so as to fit into an exhaust conduit.
In a particularly preferred arrangement the cleaned gas in the first part of the space within the frame is wholly or partly directed back into the rear part of that space to provide the positive gas pressure required to remove absorbed vapours from the porous material which surrounds that part of the space.
In an alternative embodiment the porous material, which may be in the form of a piece of woven or non-woven fibrous material, supported layer of porous granular material, or a block of carbon, for example, is supported within a frame which may be located in the gas stream from which organic vapours are to be removed. After a period of time the porous material may be removed from the gas stream and then placed near a catalytic infra-red heater, whereupon the collected organic vapours may be conveyed into contact with the catalytic heater, by blowing for example.
Upon removal from the gas stream, the supported porous material may be replaced in the gas stream by a new or regenerated piece of material while that first piece of porous material is being regenerated.
This latter embodiment of the apparatus according to the invention is particularly suitable for use in gas streams from which organic vapours need to be removed during discrete periods of time, for example when organic vapours are being produced by a process which is operated only during the day time. The former embodiment, using a continuous belt of porous material, may be more suitable for continuous use.
The support means whereby the porous material is supported in a gas stream is preferably provided with wheels or castors to enable it to be easily moved into and out of the gas stream when required.
The invention will now be further described, by way of example only, with reference to the accompanying drawings, which are:
Fig. 1, a schematic drawing
in plan of one embodiment
of the apparatus according
to the invention, for continuous
use;
Fig. 2, an elevation from
the fan end of the arrangement
shown in Fig. 1;
and
Fig. 3, a schematic drawing
in plan of an alternative
embodiment of the apparatus
according to the invention,
suitable for batch-type
operation.
In Figs. 1 and 2, the ventilation system of a patent spray booth 10 is exhausted through a duct 11 by means of an extracting fan 12; 23 and 24 are filters for removing particles from the gas stream. A continuous belt 13 of non-woven carbon fibre felt-type material passes across the duct 11 and around a regeneration area 14 and is driven anticlockwise around that path by a motor 15.
The regeneration area contains several naturally oxygenated catalytic infra-red heaters 16 arranged generally parallel to the path of the belt 13. A recirculation duct 17 conveys air from the main extraction duct into an area 18 within the loop of the belt 13 lying within the regeneration area.
The movement of air from that central area 18, through the porous belt, displaces the organic vapours collected on the belt during its residence within the exhaust duct 11 and blows those vapours into contact with the catalytic heaters 16, there to be oxidised to carbon dioxide and water vapour. The excess air and oxidation products are removed from the regeneration area 14 by means of a duct 19 which leads back to the main exhaust duct 11. In this way, the carbon material in the exhaust duct 11 is continuously replaced by regenerated material, that is, material from which the collected organic vapours have been removed. Most of the exhaust air which has passed through the carbon material is vented via the main extraction duct by the fan 12, as indicated by arrow 21, with just a small proportion, controlled by a damper 20, being diverted through duct 17, as indicated by arrows 22.
An alternative embodiment is shown in Fig. 3 in which a paint spray booth 10 is exhausted through a main exhaust duct 11 by fan 12 as in the previous example.
A porous spun carbon fibre material is supported in frames 30 located in the exhaust duct.
These frames of porous material collect organic vapours from the exhaust gases whilst the spray booth 10 is being operated. When that operation has ceased, or when the porous material is saturated, the frames are removed from their position within duct 11 and placed in a regeneration area 31 facing one or more catalytic infra-red heaters 16. They may then be regenerated 'off-line' with the aid of air diverted via duct 17 from the main extraction duct to remove organic vapours from the porous material. During regeneration, the frames of porous material may be replaced by frames of fresh or regenerated porous material if it is required to operate the paint spray plant during that time.
The invention is not limited to use for removing solvent vapours from paint spray exhaust streams. It may, for example, be used to clean organic vapours produced in plastics moulding or printing.
Claims (30)
1. Apparatus for removing organic vapours from a gas stream comprises a porous material, support means whereby said porous material may be supported in a gas stream, a catalytic infra-red heater and means to convey organic vapours from the porous material into contact with said catalytic infra-red heater.
2. Apparatus as claimed in Claim 1, wherein said catalytic infra-red heater is of the type which can use oxygen present in the air surrounding it.
3. Apparatus as claimed in Claim 1 or Claim 2, wherein said porous material is of a type which can attract and retain organic vapours preferentially.
4. Apparatus as claimed in Claim 3, wherein said porous material comprises carbon.
5. Apparatus as claimed in Claim 4, wherein said porous material comprises spun carbon fibre.
6. Apparatus as claimed in Claim 5, wherein said spun carbon fibre has the form of a non-woven mat or felt material.
7. Apparatus as claimed in Claim 5, wherein said spun carbon fibre has the form of a woven fabric.
8. Apparatus as claimed in Claim 6 or Claim 7, wherein said porous material comprises a continuous belt of carbon material.
9. Apparatus as claimed in Claim 8, wherein said carbon material is attached to a woven fabric backing.
10. Apparatus as claimed in any of Claims 1-3, wherein said porous material comprises a granular organic material which is capable of absorbing organic vapours.
11. Apparatus as claimed in Claim 10, wherein said granular material is mounted in a layer behind a perforated web or mesh or between two such webs or meshes.
12. Apparatus as claimed in Claim 11, wherein panels of mesh which enclose said granular material are secured together in a flexible manner to form a continuous belt.
13. Apparatus as claimed in any of Claims 1-4, wherein said porous material comprises panels of absorbtive material mounted upon a belt of fibrous porous material.
14. Apparatus as claimed in any of Claims 8, 12 or 13, further comprising means to drive said belt across said gas stream.
15. Apparatus as claimed in any of Claims 1-7 or
Claims 10 or 11, wherein said porous material is supported within a frame which may be located in a gas stream from which organic vapours are to be removed.
16. Apparatus as claimed in any of Claims 1-7, 10 or 11, wherein a band of said porous material is supported around the circumference of a substantially circular frame.
17. Apparatus as claimed in Claim 16, wherein said circular frame is arranged horizontally in a gas stream to rotate about a vertical axis.
18. Apparatus as claimed in Claim 17, wherein the space within said frame is divided into two party by a stationary vertical wall placed substantially perpendicularly to the direction of flow of the gas stream to be cleaned.
19. Apparatus as claimed in any of Claims 1-18, wherein said means to convey organic vapours from the porous material comprises a gas pressure differential between said porous material and said catalytic infra-red heater.
20. A method of removing organic vapours from a gas stream comprises collecting said organic vapours upon a porous material, removing said porous material from said gas stream and then oxidising said organic vapours by contacting said vapours with a catalytic infra-red heater.
21. A method as claimed in Claim 20, wherein the porous material is removed from the gas stream slowly and continuously.
22. A method as claimed in Claim 20, wherein said porous material has the form of a continuous belt which is arranged to move across a gaseous stream of air laden with solvent vapours and also to pass a catalytic infra-red heater panel which is located away from the gas stream.
23. A method as claimed in Claim 21 or Claim 22, wherein the rate at which porous material passes through the gas stream and in front of the catalytic infra-red heater is controllabe.
24. A method as claimed in Claim 23, wherein said rate is controlled automatically to be in proportion to the velocity of the gas stream or the concentration of vapours in the gas stream.
25. A method as claimed in Claim 20, wherein the porous material is left in a stationary position in the gas stream for a period of time before it is removed and replaced by a fresh piece of porous material.
26. A method as claimed in any of Claims 20-24, wherein said vapours are contacted with said catalytic infra-red heater by means of a gas pressure differential set up between the belt and the heater.
27. A method as claimed in Claim 26, wherein said gas pressure differential is achieved by providing a draught of air behind the belt as it passes in front of the catalytic heater.
28. A method as claimed in Claim 25 , wherein, on removal from the gas stream, said porous material is placed near a catalytic infra-red heater, whereupon organic vapours collected on the porous material are conveyed into contact with the catalytic heater by blowing.
29. Apparatus for removing organic vapours from a gas stream substantially as hereinbefore described with reference to and as shown in the accompanying drawings.
30. A method of removing organic vapours from a gas stream substantially as hereinbefore described with reference to and as shown in the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9424984A GB2285044B (en) | 1993-12-11 | 1994-12-12 | Method and apparatus for removing organic vapours from gaseous streams |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB939325475A GB9325475D0 (en) | 1993-12-11 | 1993-12-11 | Method and apparatus for removing organic vapours from gaseous streams |
| GB9424984A GB2285044B (en) | 1993-12-11 | 1994-12-12 | Method and apparatus for removing organic vapours from gaseous streams |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB9424984D0 GB9424984D0 (en) | 1995-02-08 |
| GB2285044A true GB2285044A (en) | 1995-06-28 |
| GB2285044B GB2285044B (en) | 1997-12-24 |
Family
ID=26304016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9424984A Expired - Fee Related GB2285044B (en) | 1993-12-11 | 1994-12-12 | Method and apparatus for removing organic vapours from gaseous streams |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2285044B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017037419A1 (en) * | 2015-09-01 | 2017-03-09 | Edwards Limited | Abatement apparatus |
| WO2018046900A1 (en) * | 2016-09-09 | 2018-03-15 | Mcgee Donald Richard | Apparatus for removing organic vapours from gaseous streams |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108404598A (en) * | 2018-01-17 | 2018-08-17 | 苏州驰伦环保设备有限公司 | Activated carbon adsorption and catalytic combustion system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0393515A1 (en) * | 1989-04-17 | 1990-10-24 | S.S.T. SOLID STATE TECHNOLOGIES S.r.L. | Plant for purifying air polluted with organic industrial products, by catalytic combustion |
-
1994
- 1994-12-12 GB GB9424984A patent/GB2285044B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0393515A1 (en) * | 1989-04-17 | 1990-10-24 | S.S.T. SOLID STATE TECHNOLOGIES S.r.L. | Plant for purifying air polluted with organic industrial products, by catalytic combustion |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017037419A1 (en) * | 2015-09-01 | 2017-03-09 | Edwards Limited | Abatement apparatus |
| KR20180048901A (en) * | 2015-09-01 | 2018-05-10 | 에드워즈 리미티드 | Abatement device |
| CN108136310A (en) * | 2015-09-01 | 2018-06-08 | 爱德华兹有限公司 | Emission reduction device |
| JP2018526608A (en) * | 2015-09-01 | 2018-09-13 | エドワーズ リミテッド | Abatement equipment |
| US10661217B2 (en) | 2015-09-01 | 2020-05-26 | Edwards Limited | Abatement apparatus |
| KR102588341B1 (en) * | 2015-09-01 | 2023-10-11 | 에드워즈 리미티드 | abatement device |
| WO2018046900A1 (en) * | 2016-09-09 | 2018-03-15 | Mcgee Donald Richard | Apparatus for removing organic vapours from gaseous streams |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2285044B (en) | 1997-12-24 |
| GB9424984D0 (en) | 1995-02-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20031212 |