WO2002100507A1 - A method of treating contaminated gas - Google Patents
A method of treating contaminated gas Download PDFInfo
- Publication number
- WO2002100507A1 WO2002100507A1 PCT/GB2002/002581 GB0202581W WO02100507A1 WO 2002100507 A1 WO2002100507 A1 WO 2002100507A1 GB 0202581 W GB0202581 W GB 0202581W WO 02100507 A1 WO02100507 A1 WO 02100507A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- liquor
- droplets
- gas
- spray
- liquid spray
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0027—Condensation of vapours; Recovering volatile solvents by condensation by direct contact between vapours or gases and the cooling medium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
Definitions
- the invention relates to the treatment of gas, and in particular air, for removing contaminant in the form of a noxious vapour from a process liquor released into the gas or air in a hot working environment.
- the invention has particular application to the treatment of air contaminated by vapour from the lubricating oils used in hot rolling plant for metal, especially aluminium, forming.
- attempts to decontaminate the air have involved scrubbers using water or solvents for the lubricating oil, but these have not worked satisfactorily and also generate a disposal problem in the form of undesirable liquid products from the scrub liquor.
- a method of treating gas, and in particular air, contaminated with a noxious vapour from a process liquor in a hot working environment comprises passing the gas through a scrubber device in which the gas is exposed to a spray of cold droplets of the same process liquor as that which in vapour form comprises the contaminant .
- the cold liquor supplied to the scrubber device is chilled to a temperature as close as practicable to the solidification temperature of the liquor.
- the scrubber device comprises a vortex chamber having at least one tangential inlet port for the contaminated gas and an axial outlet port through which the treated gas emerges and, within the chamber, a liquid spray generator which is fed with the said process liquor and which generates a spray of droplets of the process liquor so as to fill a substantial proportion of the vortex chamber with droplets.
- the liquid spray generator is of the type in which opposed jets of liquid impinge upon each other and are disrupted to form a spray of droplets and the liquor is supplied to the liquid spray generator under conditions in which the flow is at least partially turbulent, preferably under conditions for which the Reynolds number is greater than 12,000, so that the droplets in the spray are projected outwardly from, and transverse to the flow direction of, the opposed jets of liquor with a random distribution of the angular relationship between the direction of movement of the droplets relative to the direction of flow of the said opposed jets of liquor.
- the apparatus comprises a vortex chamber gas/liquid contactor 11 of the type described in patent GB 2282983.
- the contactor 11 is connected to receive air from a fume hood 31 which is positioned to collect and draw air from a metal forming hot rolling mill, indicated diagrammatically at 32.
- the contactor 11 comprises a cylindrical vortex chamber 12 which has a tangential gas inlet port 13 and an axial gas outlet port 1 .
- a liquid feed pipe 15 divides into two branches 16 and 17 which enter into the vortex chamber 12 and terminate in two axially opposed nozzles 18 and 19, respectively.
- the opposed nozzles are, in this example, aligned with the central axis of the vortex chamber 12.
- a baffle 20 extends across the lower part of the vortex chamber 12 and the portion of the vortex chamber below the baffle 20 forms a sump 21 for liquor 22 which is withdrawn through an outlet 23 and re-circulated by a pump 24 to the feed pipe 15 via a chiller 33.
- Contaminated air is drawn from the hood 31 by pump 34 and fed to the tangential inlet 13 of the vortex chamber 12 via gas feed pipe 35.
- the sump 21 is filled with a liquor which is the same as that used for lubrication in the hot rolling mill 32 and thus, in vapour form, comprises the major contaminant of the air being withdrawn from the hood 31.
- the pump 24 is such as to drive the liquor through the feed pipe 15 and branches 16, 17 so that the flow of
- the impinging jets of liquor at 25 are formed into a spray of droplets which are projected in all directions outwardly from, and transverse to the flow direction of, the opposed jets of liquor. Because of the turbulence in the impinging liquor jets, there is a random distribution of the angular relationship between the direction of movement of the droplets relative to the direction of flow of the said opposed jets of liquor.
- the vortex chamber 12 is, in this way, very effectively filled with chilled droplets of liquor which are collected by their impact on the outer wall of the chamber. The collected droplets flow down the outer wall and into the sump 21, from which this collected liquor is available for re-circulation.
- the contaminated air entering the vortex chamber 12 via the tangential inlet port 13 is caused to swirl through the chamber 12 and ultimately exit axially by outlet port 14.
- the air is thus subjected to a particularly effective scrubbing interaction with the spray of chilled droplets of the liquor. Liquor in vapour form in the air is condensed onto the droplets and thus carried with them into the sump 21, whilst the air, now significantly decontaminated, is released via outlet 14.
- chill applied by the chiller 33 must be sufficient to achieve the required degree of effectiveness in condensation of vapour onto the chilled droplets in the vortex chamber 12. In practice, it may be convenient to arrange for the chilling applied by chiller 33 to reduce the temperature of the liquor to reasonably close to its solidification temperature .
- the volume of liquor in the sump 21 will gradually increase as operation of the apparatus continues. Also there will be some accumulation in the liquor in the sump
- the invention is not restricted to the details of the foregoing example. For instance, there may be circumstances in which it is not air which is contaminated but some other gas such as, for example, an inert gas used to protect the plant over which it is circulated.
- gas such as, for example, an inert gas used to protect the plant over which it is circulated.
- the method and apparatus can equally well be applied to the decontamination of such a gas.
- the decontamination may require more than 1 stage of treatment in a vortex chamber gas/liquid contactor.
- Such multiple stage decontamination may readily be applied, for example, by choosing any suitable multiple stage version as described in patent GB 2282983.
- a spray generator as described in GB 2347098 may advantageously be used in place of the nozzles 18, 19.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0114116A GB0114116D0 (en) | 2001-06-09 | 2001-06-09 | A method of treating contaminated gas |
GB0114116.7 | 2001-06-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002100507A1 true WO2002100507A1 (en) | 2002-12-19 |
Family
ID=9916284
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2002/002581 WO2002100507A1 (en) | 2001-06-09 | 2002-06-06 | A method of treating contaminated gas |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB0114116D0 (en) |
WO (1) | WO2002100507A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2455869A (en) * | 2007-12-20 | 2009-06-24 | O Gen Uk Ltd | Gasification of biomass |
DE102009026090A1 (en) | 2008-07-02 | 2010-03-04 | Nebb Technology As | Two phase capacitor |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3149847A1 (en) * | 1981-12-16 | 1983-07-21 | Linde Ag, 6200 Wiesbaden | Process for removing hydrocarbons and other impurities from a gas |
DE3720258A1 (en) * | 1987-06-19 | 1988-12-29 | Marresearch | Process for reducing the hydrocarbon emissions arising at tank farms, tanker truck filling stations and ships and plant for carrying out the process |
US4849057A (en) * | 1987-06-30 | 1989-07-18 | Bbc Brown Boveri Aktiengesellschaft | Apparatus for the pyrolysis of waste material |
EP0642836A2 (en) * | 1993-09-11 | 1995-03-15 | United Kingdom Atomic Energy Authority | Spray generators |
DE19837269A1 (en) * | 1998-08-17 | 2000-02-24 | Rupert Merkl | Cleaning of exhaust gas from domestic oil or gas fired water heaters by water sprays comprises regenerative heat exchange for the boiler feed water |
WO2001036567A1 (en) * | 1999-11-19 | 2001-05-25 | Energy Process Technologies, Inc. | Process for the removal of particulates and aerosols from a gas stream |
-
2001
- 2001-06-09 GB GB0114116A patent/GB0114116D0/en not_active Ceased
-
2002
- 2002-06-06 WO PCT/GB2002/002581 patent/WO2002100507A1/en not_active Application Discontinuation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3149847A1 (en) * | 1981-12-16 | 1983-07-21 | Linde Ag, 6200 Wiesbaden | Process for removing hydrocarbons and other impurities from a gas |
DE3720258A1 (en) * | 1987-06-19 | 1988-12-29 | Marresearch | Process for reducing the hydrocarbon emissions arising at tank farms, tanker truck filling stations and ships and plant for carrying out the process |
US4849057A (en) * | 1987-06-30 | 1989-07-18 | Bbc Brown Boveri Aktiengesellschaft | Apparatus for the pyrolysis of waste material |
EP0642836A2 (en) * | 1993-09-11 | 1995-03-15 | United Kingdom Atomic Energy Authority | Spray generators |
DE19837269A1 (en) * | 1998-08-17 | 2000-02-24 | Rupert Merkl | Cleaning of exhaust gas from domestic oil or gas fired water heaters by water sprays comprises regenerative heat exchange for the boiler feed water |
WO2001036567A1 (en) * | 1999-11-19 | 2001-05-25 | Energy Process Technologies, Inc. | Process for the removal of particulates and aerosols from a gas stream |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2455869A (en) * | 2007-12-20 | 2009-06-24 | O Gen Uk Ltd | Gasification of biomass |
GB2455869B (en) * | 2007-12-20 | 2012-01-18 | O Gen Uk Ltd | Gasification of biomass |
DE102009026090A1 (en) | 2008-07-02 | 2010-03-04 | Nebb Technology As | Two phase capacitor |
Also Published As
Publication number | Publication date |
---|---|
GB0114116D0 (en) | 2001-08-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
RU2108172C1 (en) | Method of treating parts with liquid | |
RU2121866C1 (en) | Method and device for wet cleaning of gases | |
KR101462398B1 (en) | Fine particles filtering scrubber | |
US11896926B2 (en) | Devices, systems and methods for flux removal from furnace process gas | |
US4503577A (en) | Pipe and hose decontamination apparatus | |
US5580394A (en) | Method for cleaning industrial parts including sequential direct spray and immersion of the part | |
CA2210981A1 (en) | Horizontal multi-washer and method of total cleaning of synthesis gases obtained from the gasification of wastes of the most varied composition | |
US5190665A (en) | Process and apparatus for removing carbon dioxide and stripping another component from a liquid stream | |
KR20150074365A (en) | The industrial cleaner which removes pollutants from cleaning water by using waste heat | |
WO2002100507A1 (en) | A method of treating contaminated gas | |
US9533311B2 (en) | Apparatus and method for removing mercury from a gas stream | |
US6119365A (en) | Automatically operating cleaning installation for workpieces | |
US5820748A (en) | Safe removal of gasses, water and solvents from used lubricating oils with vacuum apparatus under mild temperature conditions | |
GB2385011A (en) | Treatment of contaminated gas | |
US4619126A (en) | Lubricant removal system for cold rolling stand | |
CA1324334C (en) | Neutralizing oxidation product components in continuous rerefining of used oil stocks | |
CN209302420U (en) | A kind of heat-treatment quenching oil groove fume purifying set composite | |
EP0058877A1 (en) | Method of using the vapour heat emanating from the evaporation of liquids | |
EP3747530A1 (en) | System for cleaning an off-gas, comprising an acid component, and/or for regenerating an acid component comprised in an off-gas, method | |
CN216755834U (en) | Oil fume purification device of heat treatment equipment | |
JPH0841667A (en) | Washing of metallic strip material | |
EP0458789B1 (en) | Process and device for separating solvents and oils | |
JPH07112166A (en) | Washing and drying device using solvent | |
US5316625A (en) | Apparatus for separating a partially miscible solvent from water | |
DE102006022463B4 (en) | Method and device for the treatment of a cutting process supplied cooling lubricant and use of the device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
122 | Ep: pct application non-entry in european phase | ||
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWW | Wipo information: withdrawn in national office |
Country of ref document: JP |