EP0354197A2 - Vorrichtung zur Reinigung von Gasen - Google Patents

Vorrichtung zur Reinigung von Gasen Download PDF

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Publication number
EP0354197A2
EP0354197A2 EP89850220A EP89850220A EP0354197A2 EP 0354197 A2 EP0354197 A2 EP 0354197A2 EP 89850220 A EP89850220 A EP 89850220A EP 89850220 A EP89850220 A EP 89850220A EP 0354197 A2 EP0354197 A2 EP 0354197A2
Authority
EP
European Patent Office
Prior art keywords
bed
combustion device
gas
combustion
different parts
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.)
Withdrawn
Application number
EP89850220A
Other languages
English (en)
French (fr)
Other versions
EP0354197A3 (de
Inventor
Hans Porat
Karl-Hugo Andersson
Jan-Mats Eneroth
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.)
ABB Technology FLB AB
Original Assignee
UK Secretary of State for Defence
ABB Flaekt AB
Flaekt AB
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 UK Secretary of State for Defence, ABB Flaekt AB, Flaekt AB filed Critical UK Secretary of State for Defence
Publication of EP0354197A2 publication Critical patent/EP0354197A2/de
Publication of EP0354197A3 publication Critical patent/EP0354197A3/de
Withdrawn legal-status Critical Current

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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
    • F23G7/061—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating
    • F23G7/065—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel
    • F23G7/066—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel preheating the waste gas by the heat of the combustion, e.g. recuperation type incinerator
    • F23G7/068—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel preheating the waste gas by the heat of the combustion, e.g. recuperation type incinerator using regenerative heat recovery means

Definitions

  • the present invention relates to an apparatus for purification of gases, comprising a combustion device, through which a gas is intended be to conducted for combustion and/or conversion of the contaminants of the gas.
  • the purpose of the present invention is to solve, in a much simpler way, the problem related to the drifting temperature gradient in this type of purification apparatus, and to provide in a simpler way an apparatus, which can be operated continuously while maintaining the desired temperature conditions in the combustion device without the need for reversal of the gas flow direction through the combustion device.
  • the combustion device is mounted in a rotor, stationary supply means being provided to conduct the flows mainly parallel to the axis of the rotor in opposite directions through different parts of the rotor. Due to the rotation of the rotor the oppositely directed flows will then successively pass through different parts of the combustion device.
  • said supply means comprise a system of movable ducts for the oppositely directed flows, which are passed through the different parts of the combustion device due to the motion of the ducts, the combustion device being stationary.
  • the combustion device comprises a bed of sand, a ceramic material or another heat resistant material and a source of heat for heating the bed.
  • the source of heat can be formed of electric heating coils or burners for a suitable fuel, such as a gas, oil or a solid fuel, the embodiment with stationary bed being particulary advantageous, since feeding of electric current or gas, oil or another fuel to the bed is possible by simple solutions, from electric sources or fuel containers situated outside the combustion device.
  • FIG. 1 an embodiment having a slowly rotating rotor 2 is shown.
  • a combustion device for combustion and/or conversion of the contaminations of the gas is disposed in the rotor.
  • the combustion device comprises a bed 4 of sand, a ceramic material or another heat resistant material and a source of heat, not shown in detail, for heating the bed to the required temperature.
  • the gas which is to be purified, is passed through one half 5 of the bed 4 in one direction 3 and in the opposite direction 7 through the other half 9 of the rotor 2.
  • the tub flows 3 and 7 are preferably both constituted of contaminated gas, to be purified, but it is also possible that one of the two flows is constituted of another (pure) medium, e.g. exterior air, supplied or recirculated air to a process.
  • the gas flows which are schematically illustrated by the arrows 3 and 7, are supplied to the combustion device in a known manner through supply ducts (not shown).
  • the heating of the bed 4 is preferably realized in this embodiment by electric heating coils in the bed (not shown in detail), which coils are fed in known manner by means of slip rings, because the bed is rotating.
  • the heating by burning gas, oil or another suitable fuel, fuel containers then being suitably mounted inside the rotor.
  • the apparatus according to the invention is particularly adapted for purification of large gas volumes having a comparatively low concentration of contaminants the diameter of the rotor is typically of the order of 10 m.
  • a second embodiment in which the combustion device with its bed 6 is stationary, while a system of movable ducts 8,10 is arranged for supply of the contaminated gas in oppositely directed flows through different parts of bed 6.
  • a flow of the contaminated gas is introduced at 12 and passes through the bed 6 from the top downwards to the bottom in fig. 2, an oppositely directed flow passing through the bed 6 and the duct 10.
  • the duct 10 is rotatable around a vertical axis in fig. 2 inside the duct 8, such that the flow 14 through the duct 10 successively passes through different parts of the bed 6, while the flow 12 simultaneously passes in the opposite direction through other parts of the bed 6, which are positioned outside the duct 10, the temperature gradient drift thus being continuously corrected or counteracted so that the maximum temperature will all the time remain within a comparatively narrow region in the center of the bed 6.
  • FIG. 3 an embodiment having a rotating bed 16 is shown, disposed in a combustion chamber 18, in the upper part of which a burner 20 is mounted.
  • the flow 22 of contaminated gas is first conducted through a first part of the bed 16, through the space 24 and in the opposite direction, at 26, through another part of the bed 16. Because of the rotation of the bed 16 the flows 22 and 26 will successively be moved to different parts of the bed.
  • the embodiments according to fig. 1 and 2 are designed such that the temperature is maximum in the central region of the bed.
  • the maximum temperature of the bed 16 will be in its upper part due to the position of the source of heat 20.
  • the gas flow 22 will then be heated when passing through the bed 16.
  • the gas can be further heated due to the combustion of fuel supplied from outside and due to possible combustion of e.g. solvents present in the gas.
  • the gas 26 When passing in the opposite direction through the bed 16 the gas 26 will be cooled again, the temperature at the outlet from the bed 16, however, being somewhat higher than at the inlet into the bed 16.
  • fig. 4 an embodiment is shown having a stationary bed 28 in a combustion chamber 30, in the upper part of which a burner 32 is disposed.
  • the temperature conditions in the apparatus are in this embodiment mainly the same as in the embodiment according to fig. 3.
  • the contaminated gas is supplied under pressure to the bed 28 through a rotating duct 34 and due to the rotation of duct 34 the flow 36 of contaminated gas will be moved successively to different parts of the bed 28, the gas flow 38 passing through the bed in the opposite direction outside the area of supply duct 34 also being displaced to different parts of the bed due to the rotation of the duct 34 in a way analogous to that of the embodiment according to fig. 2.
  • the embodiments with a stationary bed have certain practical advantages, because the feeding of the sources of heat of the apparatus may be carried out in a simple way from electric sources or fuel containers situated outside the apparatus.
  • the gas to be purified can of course be supplied to the combustion device in more than two flows, every second flow passing the combustion device in one direction and every second flow in the opposite direction.
  • the apparatus according to the invention can be generally used for purification of gases.
  • gases can be mentioned destruc­tions of solvents from paint industry, printing trade and car manufacturing plants.
  • the apparatus is particularly suitable for purification of large gas volumes having a low concentration of contaminants.

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
EP19890850220 1988-08-02 1989-06-30 Vorrichtung zur Reinigung von Gasen Withdrawn EP0354197A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8802791 1988-08-02
SE8802791A SE461808B (sv) 1988-08-02 1988-08-02 Foerfarande och anordning foer rening av gaser

Publications (2)

Publication Number Publication Date
EP0354197A2 true EP0354197A2 (de) 1990-02-07
EP0354197A3 EP0354197A3 (de) 1991-01-30

Family

ID=20373015

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890850220 Withdrawn EP0354197A3 (de) 1988-08-02 1989-06-30 Vorrichtung zur Reinigung von Gasen

Country Status (3)

Country Link
EP (1) EP0354197A3 (de)
JP (1) JPH0282013A (de)
SE (1) SE461808B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998044298A1 (en) * 1997-04-01 1998-10-08 Engelhard Corporation Rotary regenerative oxidizer
WO1999023421A1 (en) * 1997-11-05 1999-05-14 Engelhard Corporation Rotary oxidizer systems for control of restaurant emissions
US5967771A (en) * 1997-04-01 1999-10-19 Engelhard Corporation Rotary regenerative oxidizer
DE102008055851A1 (de) * 2008-11-04 2010-05-12 Kba-Metalprint Gmbh Regenerative Abluftreinigungseinrichtung sowie Verfahren zum Herstellen einer regenerativen Abluftreinigungseinrichtung

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE502607C2 (sv) * 1993-07-06 1995-11-20 Flaekt Ab Förfarande för rening av att fuktigt gasflöde innehållande föroreningar såsom flyktiga lösningsmedel
JP4974548B2 (ja) * 2006-03-06 2012-07-11 本田技研工業株式会社 エンジンの排気浄化装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3837148A (en) * 1972-02-23 1974-09-24 Texaco Inc Apparatus for filtering flue gas
US4089088A (en) * 1976-07-14 1978-05-16 Michigan Oven Company Thermal regeneration and decontamination apparatus and industrial oven
US4415342A (en) * 1980-09-24 1983-11-15 Minnesota Mining And Manufacturing Company Air pollution control process

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3837148A (en) * 1972-02-23 1974-09-24 Texaco Inc Apparatus for filtering flue gas
US4089088A (en) * 1976-07-14 1978-05-16 Michigan Oven Company Thermal regeneration and decontamination apparatus and industrial oven
US4415342A (en) * 1980-09-24 1983-11-15 Minnesota Mining And Manufacturing Company Air pollution control process

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998044298A1 (en) * 1997-04-01 1998-10-08 Engelhard Corporation Rotary regenerative oxidizer
US5967771A (en) * 1997-04-01 1999-10-19 Engelhard Corporation Rotary regenerative oxidizer
EP1136755A1 (de) * 1997-04-01 2001-09-26 Engelhard Corporation Umlaufende regenerative Oxidationsvorrichtung
WO1999023421A1 (en) * 1997-11-05 1999-05-14 Engelhard Corporation Rotary oxidizer systems for control of restaurant emissions
DE102008055851A1 (de) * 2008-11-04 2010-05-12 Kba-Metalprint Gmbh Regenerative Abluftreinigungseinrichtung sowie Verfahren zum Herstellen einer regenerativen Abluftreinigungseinrichtung
DE102008055851B4 (de) * 2008-11-04 2011-03-17 Kba-Metalprint Gmbh Regenerative Abluftreinigungseinrichtung sowie Verfahren zum Herstellen einer regenerativen Abluftreinigungseinrichtung

Also Published As

Publication number Publication date
JPH0282013A (ja) 1990-03-22
SE8802791D0 (sv) 1988-08-02
SE461808B (sv) 1990-03-26
EP0354197A3 (de) 1991-01-30
SE8802791L (sv) 1990-02-03

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