WO2003047727A1 - Verfahren zur gasreinigung - Google Patents
Verfahren zur gasreinigung Download PDFInfo
- Publication number
- WO2003047727A1 WO2003047727A1 PCT/DE2002/004396 DE0204396W WO03047727A1 WO 2003047727 A1 WO2003047727 A1 WO 2003047727A1 DE 0204396 W DE0204396 W DE 0204396W WO 03047727 A1 WO03047727 A1 WO 03047727A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gas
- plasma
- process gas
- cleaned
- ignited
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/32—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 electrical effects other than those provided for in group B01D61/00
-
- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J19/12—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electromagnetic waves
- B01J19/122—Incoherent waves
- B01J19/126—Microwaves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/806—Microwaves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S588/00—Hazardous or toxic waste destruction or containment
- Y10S588/90—Apparatus
Definitions
- the invention relates to a method for gas purification according to the preamble of patent claim 1.
- EP 0 785 016 A1 describes a complex process for removing pollutant-containing exhaust air by combining a biological cleaning stage with a non-thermal plasma cleaning stage. Another disadvantage of the process described in EP 0 785 016 A1 is that the non-thermal plasma only partially oxidizes the pollutants, which means that toxic constituents can be formed. For the cleaning of these components, the use of further moderators is used, which means a further construction effort.
- thermal plasmas are used for cleaning gases.
- the gas to be cleaned is fed into the between two electrodes e.g. generated by an arc burner thermal plasma.
- the disadvantage here is that due to the high gas velocity of the plasma and the high density gradient, the gas to be cleaned can only penetrate insufficiently into the hot plasma zones.
- the gas to be cleaned is passed through a thermal plasma, the plasma being generated by electrodeless ignition of a process gas, so that the pollutants contained in the gas to be cleaned are converted into environmentally neutral, fully oxidized substances by means of the thermal plasma.
- An advantage of the method according to the invention is that due to the high plasma temperatures, which are in the range of a few 10,000 K, the pollutants, which usually consist of long-chain CH compounds, are split into individual environmentally compatible CH fragments, which is also referred to as cracking.
- Another advantage is that no further filters or moderators are necessary. As a result, the method according to the invention is simpler and less expensive than conventional methods.
- the plasma is generated without electrodes in the method according to the invention, no wearing parts such as e.g. the electrodes of an arc torch. This also prevents any reactions of the pollutants with the electrodes, which would lead to the formation of toxic constituents, particularly in tungsten electrodes in conventional arc burners.
- the process gas required to ignite the plasma contains oxygen and / or nitrogen. Air can expediently be used as the process gas, but it is also possible to use process gases with other stoichiometric ratios.
- the thermal plasma can be ignited by means of resonant coupling of high-frequency microwaves to the process gas. Such an ignition is known for example from DE 195 13 250 A1.
- the method according to the invention can be used in particular in the cleaning of gases and vapors which arise in the bath care in electroplating or degreasing baths.
- the method according to the invention can also be used in other fields of application in which the purification of exhaust air containing pollutants or harmful to health is required.
- Fig. 1 shows a sectional view of a first exemplary embodiment of the method according to the invention, wherein the process gas is ignited by means of microwaves.
- Fig. 2 shows a sectional view of a second exemplary embodiment of the method according to the invention, wherein the process gas is ignited by means of radio waves.
- a first exemplary device for performing the method according to the invention is shown in a sectional view.
- a dielectric microwave-transparent tube 1 with a gas inlet opening 2 and a gas outlet opening 3 is advantageously present.
- the process gas P is advantageously introduced into the pipe 1 through the gas inlet opening 2, the process gas P being introduced in such a way that it advantageously has a tangential and an axial flow component directed in the direction of the gas outlet opening 3.
- a metallic expansion nozzle 4 is advantageously attached to the gas outlet opening 3 of the tube 1.
- the tube 1 is expediently in a waveguide 5, in which the microwaves, which are generated by a microwave source, not shown, are transported. By absorption of microwave energy, a thermal microwave plasma 7 is ignited in the area 6 in which the tube 1 is located in the waveguide 5.
- the microwave source can be operated continuously or pulsed.
- the gas RG to be cleaned is advantageously passed through the gas inlet opening 2 into the pipe 1 and thus through the region 6 in which the plasma 7 burns.
- the cleaning of the pollutant-containing gas RG takes place in this area 6, the pollutants being cracked into individual environmentally compatible fragments.
- This gas mixture consisting of the plasma 7, the cleaned gas G and the fragments, flows through the expansion nozzle 4 at the gas outlet opening 3 of the tube 1.
- the gas mixture is expanded, thereby preventing, in particular, recombination of the fragments present in the gas mixture into toxic substances becomes.
- FIG. 2 essentially corresponds to the embodiment shown in FIG. 1. 2, the tube 1 is wrapped with a coupling coil 8, however. Furthermore, the tube 1 is advantageously transparent to radio waves. Thus, according to the embodiment in FIG. 1, a thermal rf plasma 7 is generated in the region 6 by means of absorption of radio energy.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Plasma Technology (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/497,074 US7217903B2 (en) | 2001-12-01 | 2002-11-29 | Method for purifying gas using plasma discharge |
EP02792629A EP1448292A1 (de) | 2001-12-01 | 2002-11-29 | Verfahren zur gasreinigung mittels plasmaentladung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10159152.7 | 2001-12-01 | ||
DE10159152A DE10159152A1 (de) | 2001-12-01 | 2001-12-01 | Verfahren zur Gasreinigung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003047727A1 true WO2003047727A1 (de) | 2003-06-12 |
Family
ID=7707769
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2002/004396 WO2003047727A1 (de) | 2001-12-01 | 2002-11-29 | Verfahren zur gasreinigung |
Country Status (4)
Country | Link |
---|---|
US (1) | US7217903B2 (de) |
EP (1) | EP1448292A1 (de) |
DE (1) | DE10159152A1 (de) |
WO (1) | WO2003047727A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006031075A1 (en) * | 2004-09-15 | 2006-03-23 | Automit Co., Ltd. | Plasma apparatus for treating harmful gas |
WO2016070950A1 (de) * | 2014-11-06 | 2016-05-12 | Brückner Maschinenbau GmbH & Co. KG | Plasma abgasreinigung |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7452122B2 (en) * | 2003-07-24 | 2008-11-18 | Bio-Lab, Inc. | Feeder device |
FR2864795B1 (fr) * | 2004-01-06 | 2008-04-18 | Air Liquide | Procede de traitement des gaz par des decharges hautes frequence |
DE102004046814B3 (de) * | 2004-09-27 | 2006-03-09 | Siemens Ag | Verfahren und Vorrichtung zur Beeinflussung von Verbrennungsvorgängen, insbesondere zum Betrieb einer Gasturbine |
WO2009146432A1 (en) | 2008-05-30 | 2009-12-03 | Colorado State University Research Foundation | Plasma-based chemical source device and method of use thereof |
US8994270B2 (en) | 2008-05-30 | 2015-03-31 | Colorado State University Research Foundation | System and methods for plasma application |
US9272359B2 (en) | 2008-05-30 | 2016-03-01 | Colorado State University Research Foundation | Liquid-gas interface plasma device |
WO2009146439A1 (en) | 2008-05-30 | 2009-12-03 | Colorado State University Research Foundation | System, method and apparatus for generating plasma |
KR101025035B1 (ko) * | 2009-06-23 | 2011-03-25 | 주성호 | 프라즈마를 이용한 버어너 |
US8222822B2 (en) | 2009-10-27 | 2012-07-17 | Tyco Healthcare Group Lp | Inductively-coupled plasma device |
AU2010349785B2 (en) | 2010-03-31 | 2014-02-27 | Colorado State University Research Foundation | Liquid-gas interface plasma device |
US9532826B2 (en) | 2013-03-06 | 2017-01-03 | Covidien Lp | System and method for sinus surgery |
US9555145B2 (en) | 2013-03-13 | 2017-01-31 | Covidien Lp | System and method for biofilm remediation |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0295083A2 (de) * | 1987-06-08 | 1988-12-14 | Efthimion, Philip C., Dr. | Apparat und Verfahren für chemische Behandlungen mittels Hochdruck- und Atmosphärendruckplasma, hergestellt durch elektromagnetischen Wellen hoher Frequenz |
DE4319118A1 (de) * | 1993-06-09 | 1994-12-15 | Breitbarth Friedrich Wilhelm D | Verfahren und Vorrichtung zur Entsorgung von Fluorkohlenstoffen und anderen fluorhaltigen Verbindungen |
US5478532A (en) * | 1991-08-23 | 1995-12-26 | The United States Of America As Represented By The Secretary Of The Navy | Large scale purification of contaminated air |
EP0839929A1 (de) * | 1996-10-30 | 1998-05-06 | Applied Materials, Inc. | Verfahren und Vorrichtung zur Reduzierung von Absetzungen in einer Abgasleitung |
US5782085A (en) * | 1995-04-07 | 1998-07-21 | Dornier Gmbh | Method and apparatus for continuously removing nitrogen oxides in exhaust gases of internal combustion engines |
JP2000133494A (ja) * | 1998-10-23 | 2000-05-12 | Mitsubishi Heavy Ind Ltd | マイクロ波プラズマ発生装置及び方法 |
WO2000062904A1 (en) * | 1999-04-16 | 2000-10-26 | Swinburne Limited | Ioniser for effluent gas |
Family Cites Families (12)
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US4916273A (en) * | 1987-03-11 | 1990-04-10 | Browning James A | High-velocity controlled-temperature plasma spray method |
US5349154A (en) * | 1991-10-16 | 1994-09-20 | Rockwell International Corporation | Diamond growth by microwave generated plasma flame |
US5387775A (en) * | 1993-03-31 | 1995-02-07 | The United States Of America As Represented By The United States Department Of Energy | Apparatus for the plasma destruction of hazardous gases |
DE4428418C2 (de) * | 1994-08-11 | 1997-03-06 | Buck Chem Tech Werke | Verfahren und Vorrichtung zum Inertisieren toxischer Gase oder toxischer vergasbarer Stoffe |
US5611947A (en) * | 1994-09-07 | 1997-03-18 | Alliant Techsystems, Inc. | Induction steam plasma torch for generating a steam plasma for treating a feed slurry |
EP0785016A1 (de) | 1996-01-17 | 1997-07-23 | Rafflenbeul & Partner | Verfahren zur Reinigung von schadstoffhaltiger Abluft durch Kombination einer biologischen Reinigungsstufe mit einer nicht-thermischen Plasmareinigungsstufe |
US6153852A (en) * | 1999-02-12 | 2000-11-28 | Thermal Conversion Corp | Use of a chemically reactive plasma for thermal-chemical processes |
US6830662B2 (en) * | 1999-02-12 | 2004-12-14 | Chang Yul Cha | Process for microwave destruction of harmful agents and waste |
US6552295B2 (en) * | 1999-12-20 | 2003-04-22 | Research Triangle Institute | Plasma furnace disposal of hazardous wastes |
US6617538B1 (en) * | 2000-03-31 | 2003-09-09 | Imad Mahawili | Rotating arc plasma jet and method of use for chemical synthesis and chemical by-products abatements |
US6417625B1 (en) * | 2000-08-04 | 2002-07-09 | General Atomics | Apparatus and method for forming a high pressure plasma discharge column |
DE10140298B4 (de) | 2001-08-16 | 2005-02-24 | Mtu Aero Engines Gmbh | Verfahren zum Plasmaschweißen |
-
2001
- 2001-12-01 DE DE10159152A patent/DE10159152A1/de not_active Withdrawn
-
2002
- 2002-11-29 US US10/497,074 patent/US7217903B2/en not_active Expired - Fee Related
- 2002-11-29 EP EP02792629A patent/EP1448292A1/de not_active Withdrawn
- 2002-11-29 WO PCT/DE2002/004396 patent/WO2003047727A1/de active Application Filing
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0295083A2 (de) * | 1987-06-08 | 1988-12-14 | Efthimion, Philip C., Dr. | Apparat und Verfahren für chemische Behandlungen mittels Hochdruck- und Atmosphärendruckplasma, hergestellt durch elektromagnetischen Wellen hoher Frequenz |
US5478532A (en) * | 1991-08-23 | 1995-12-26 | The United States Of America As Represented By The Secretary Of The Navy | Large scale purification of contaminated air |
DE4319118A1 (de) * | 1993-06-09 | 1994-12-15 | Breitbarth Friedrich Wilhelm D | Verfahren und Vorrichtung zur Entsorgung von Fluorkohlenstoffen und anderen fluorhaltigen Verbindungen |
US5782085A (en) * | 1995-04-07 | 1998-07-21 | Dornier Gmbh | Method and apparatus for continuously removing nitrogen oxides in exhaust gases of internal combustion engines |
EP0839929A1 (de) * | 1996-10-30 | 1998-05-06 | Applied Materials, Inc. | Verfahren und Vorrichtung zur Reduzierung von Absetzungen in einer Abgasleitung |
JP2000133494A (ja) * | 1998-10-23 | 2000-05-12 | Mitsubishi Heavy Ind Ltd | マイクロ波プラズマ発生装置及び方法 |
US6340863B1 (en) * | 1998-10-23 | 2002-01-22 | Mitsubishi Heavy Industries, Ltd. | Microwave plasma generator and system for decomposing organic halide |
WO2000062904A1 (en) * | 1999-04-16 | 2000-10-26 | Swinburne Limited | Ioniser for effluent gas |
Non-Patent Citations (1)
Title |
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PATENT ABSTRACTS OF JAPAN vol. 2000, no. 08 6 October 2000 (2000-10-06) * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006031075A1 (en) * | 2004-09-15 | 2006-03-23 | Automit Co., Ltd. | Plasma apparatus for treating harmful gas |
WO2016070950A1 (de) * | 2014-11-06 | 2016-05-12 | Brückner Maschinenbau GmbH & Co. KG | Plasma abgasreinigung |
KR20170084133A (ko) * | 2014-11-06 | 2017-07-19 | 브뤼크너 마시넨바우 게엠바하 운트 코. 카게 | 플라즈마 배기가스 정화 |
JP2017538887A (ja) * | 2014-11-06 | 2017-12-28 | ブリュックナー・マシーネンバウ・ゲーエムベーハー・ウント・コー・カーゲー | プラズマ浄化排気法及びその装置 |
US10525408B2 (en) | 2014-11-06 | 2020-01-07 | Brückner Maschinenbau GmbH & Co. KG | Plasma exhaust purification |
KR102327161B1 (ko) * | 2014-11-06 | 2021-11-16 | 브뤼크너 마시넨바우 게엠바하 운트 코. 카게 | 플라즈마 배기가스 정화 |
Also Published As
Publication number | Publication date |
---|---|
EP1448292A1 (de) | 2004-08-25 |
US20050139593A1 (en) | 2005-06-30 |
DE10159152A1 (de) | 2003-06-12 |
US7217903B2 (en) | 2007-05-15 |
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