WO2000062906A1 - Procede et dispositif d'epuration de gaz de combustion - Google Patents

Procede et dispositif d'epuration de gaz de combustion Download PDF

Info

Publication number
WO2000062906A1
WO2000062906A1 PCT/CH2000/000211 CH0000211W WO0062906A1 WO 2000062906 A1 WO2000062906 A1 WO 2000062906A1 CH 0000211 W CH0000211 W CH 0000211W WO 0062906 A1 WO0062906 A1 WO 0062906A1
Authority
WO
WIPO (PCT)
Prior art keywords
oxide
metal
exhaust gases
mercury
channels
Prior art date
Application number
PCT/CH2000/000211
Other languages
German (de)
English (en)
Inventor
Jürg WEGMANN
Original Assignee
Frick, Martin
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 Frick, Martin filed Critical Frick, Martin
Priority to AU35486/00A priority Critical patent/AU3548600A/en
Publication of WO2000062906A1 publication Critical patent/WO2000062906A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B43/00—Obtaining mercury
    • 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
    • B01D53/46—Removing components of defined structure
    • B01D53/64—Heavy metals or compounds thereof, e.g. mercury
    • 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
    • B01J19/24—Stationary reactors without moving elements inside
    • B01J19/248—Reactors comprising multiple separated flow channels
    • B01J19/2485—Monolithic reactors
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
    • B01J2219/322—Basic shape of the elements
    • B01J2219/32296—Honeycombs
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/32—Details relating to packing elements in the form of grids or built-up elements for forming a unit of module inside the apparatus for mass or heat transfer
    • B01J2219/324—Composition or microstructure of the elements
    • B01J2219/32466—Composition or microstructure of the elements comprising catalytically active material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2219/00—Treatment devices
    • F23J2219/10—Catalytic reduction devices

Definitions

  • the invention relates to a method and a device according to the preambles of the corresponding claims.
  • the method and device are used to purify exhaust gases, in particular to remove mercury, for example from exhaust gases from incineration plants (e.g. waste incineration plants, hospital waste incineration plants, waste wood incineration plants, crematoriums or also explosive disposal plants) or from production exhaust air.
  • incineration plants e.g. waste incineration plants, hospital waste incineration plants, waste wood incineration plants, crematoriums or also explosive disposal plants
  • production exhaust air e.g. waste incineration plants, hospital waste incineration plants, waste wood incineration plants, crematoriums or also explosive disposal plants
  • Mercury is partly present in vapor form in the exhaust gases mentioned or deposited as metal on solid particles and, because of its toxicity, is a high burden on the environment. For this reason, attempts are made to remove mercury from these exhaust gases as quantitatively as possible.
  • the object of the invention is to provide a method and a device for exhaust gas purification, in particular for removing mercury from combustion exhaust gases, which compared to corresponding methods and devices according to the prior art have an increased cleaning performance, a simpler regeneration and a larger one Allow range of application in terms of temperature.
  • the method according to the invention consists in flowing the exhaust gases in a flow which is as homogeneous and straight as possible over a surface coated with a metal oxide or a mixed metal oxide, the metal whose oxide is used for the coating being a metal which forms an amalgam with mercury .
  • Mercury which is vaporized in the exhaust gas, is absorbed to a high percentage in the coated surface if the surface is designed in such a way that the gas particles in the flow collide with the surface approximately twice on average.
  • the absorption of mercury in such surfaces is possible at temperatures up to approx. 120 ° C. It can be seen that a metal oxide coating with a thickness in the range of 2 to 10 ⁇ m can be loaded with mercury in a weight ratio of up to approx.
  • regenerate the metal oxide surfaces used they are heated at temperatures of approximately 150 to 160 ° C., for example in an oven, with hot gas flowing through the oven.
  • the furnace exhaust gases are cooled and the pollutants are pure substances.
  • the cleaned surfaces can then be regenerated with e.g. Subjected to hydrogen and then reused.
  • the device according to the invention has at least one channel, preferably a plurality of channels, the walls of which are coated with a metal oxide and which are arranged in a housing with gas inlet and gas outlet for integration into an exhaust gas channel.
  • FIGS. 1 and 2 show an exemplary embodiment of the device according to the invention.
  • This has a housing 1 with gas inlet E and gas outlet A.
  • At least one filler 2 is arranged in the housing 1 and divides the interior of the housing into a plurality of straight channels 3 running between gas inlet E and gas outlet A.
  • the housing contains, as shown in the flow direction, spaces for five fillers, with fillers being arranged, for example, in three of the spaces, depending on the amount of mercury, and two reserve spaces being provided.
  • the packing elements are spaced apart from one another in such a way that turbulence forms between the packing elements when flowing through.
  • the filler body 2 is made, for example, from structured metal sheets (for example from stainless steel foils) or it is an extruded ceramic body made from, for example, cordierite, as is known from catalyst technology.
  • the channels are advantageously designed such that the exhaust gas flows through them in a flow that is as laminar as possible. This prevents deposits of solid particles in the channels, so that the active surfaces are not contaminated and thus maintain their absorption capacity up to a maximum load.
  • the channels are designed in such a way that a gas velocity in the range of 2 to 3 m / s results. It has been shown that fillers are advantageously used, the rectilinear channels of which have a cross section in the range from 20 to 50 mm 2 (for example a square cross section of 5 x 5 mm) and a length of 0.3 to 2 m (for example one to five fillers) 30 cm long) and in which all through the flowing gas towers on average about two times against the canal walls.
  • the coating of the channel walls consists of a metal oxide or mixed metal oxide, the metals being selected from the group which form amalgams with mercury.
  • a noble metal oxide e.g. Silver oxide is used or a mixed oxide of two noble metals or one noble metal and another metal, e.g. Silver / copper oxide.
  • the coating consists of a silver / copper oxide with a silver / copper ratio of 1: 5 to 1:10.
  • the packings 2 are made of metal sheets or metal foils, such as stainless steel sheets, it is advantageous that MetaUober lake that form the inner surfaces of the channels, prior to coating with the said oxides to increase the surface first 'oxide with Alumim or coat titanium oxide.
  • Coating with copper / silver oxide is achieved, for example, by pretreating the stainless steel foils to be coated with oxalic acid, by wetting the pretreated surfaces with a solution of the corresponding metal oxalates (e.g. copper and silver oxalate) and by subsequently tempering the wetted surfaces in a hydrogen atmosphere .
  • a solution of the corresponding metal oxalates e.g. copper and silver oxalate
  • the resulting layers have a thickness of approximately 5 to 10 ⁇ m.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Treating Waste Gases (AREA)

Abstract

L'invention concerne un procédé pour éliminer le mercure présent dans des gaz de combustion, consistant à faire passer les gaz sur des surfaces recouvertes d'un oxyde d'au moins un métal formant un amalgame avec le mercure. L'invention concerne également un dispositif correspondant pour l'épuration de gaz de combustion, comprenant un boîtier (1) qui comporte une arrivée de gaz (E) et une évacuation de gaz (A). Au moins un corps de remplissage (2) placé dans le boîtier (1) sépare l'intérieur de ce dernier (1) en une pluralité de canaux (3) s'étendant entre l'arrivée et l'évacuation de gaz. Au moins les surfaces intérieures des canaux (3) sont revêtues avec l'oxyde mentionné. Avec une épaisseur de revêtement de l'ordre de 5 à 10 νm, ce dispositif peut être chargé, sans perte de performance, jusqu'à un rapport de charge entre le revêtement d'oxyde et le mercure d'environ 1:1. Ce procédé et ce dispositif s'utilisent pour des températures de gaz de combustion allant jusqu'à 120 °C environ. Ce dispositif peut être régénéré par un traitement à des températures d'environ 150-160 °C. Ce procédé et ce dispositif s'utilisent par exemple pour l'épuration de gaz brûlés de crématoriums.
PCT/CH2000/000211 1999-04-15 2000-04-12 Procede et dispositif d'epuration de gaz de combustion WO2000062906A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU35486/00A AU3548600A (en) 1999-04-15 2000-04-12 Method and device for exhaust gas cleaning

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH692/99 1999-04-15
CH69299 1999-04-15

Publications (1)

Publication Number Publication Date
WO2000062906A1 true WO2000062906A1 (fr) 2000-10-26

Family

ID=4192938

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2000/000211 WO2000062906A1 (fr) 1999-04-15 2000-04-12 Procede et dispositif d'epuration de gaz de combustion

Country Status (2)

Country Link
AU (1) AU3548600A (fr)
WO (1) WO2000062906A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8876958B2 (en) 2011-12-15 2014-11-04 Clariant Corporation Composition and process for mercury removal
US20160023160A1 (en) * 2014-07-25 2016-01-28 Chemical and Metal Technologies LLC Emissions contaminant capture and collection device and method of use
US9381492B2 (en) 2011-12-15 2016-07-05 Clariant Corporation Composition and process for mercury removal
US9962650B2 (en) * 2014-07-25 2018-05-08 Chemical and Metal Technologies LLC Emissions contaminant capture and collection system utilizing an integrated fluidized bed apparatus and method of use
US9968884B2 (en) * 2014-07-25 2018-05-15 Chemical and Metal Technologies LLC Reconfigurable segmental contaminated emissions capture and collection system utilizing a fluidized bed apparatus with a method for tilting and/or agitation
US10035094B2 (en) * 2014-07-25 2018-07-31 Chemical and Metal Technologies LLC Broad-spectrum matrix for contaminated emissions sorbent compounds and method of use
CN108926980A (zh) * 2017-05-26 2018-12-04 化学和金属技术有限责任公司 使用综合流化床装置的排放物污染物的捕获和收集系统及其使用方法
US10500563B2 (en) 2014-07-25 2019-12-10 Chemical and Metal Technologies LLC Emissions control system including capability to clean and/or rejuvenate carbon-based sorbents and method of use
US10500569B2 (en) 2014-07-25 2019-12-10 Chemical and Metal Technologies LLC Emissions control system including capability to clean and/or rejuvenate CZTS sorbents, CZTS-alloy sorbents, and/or CZTS-mixture sorbents, and method of use
US10500539B2 (en) 2014-07-25 2019-12-10 Chemical and Metal Technologies LLC Emissions control system with CZTS sorbents, CZTS-based alloy sorbents, and/or carbon-based sorbents and method of use
US10730012B2 (en) 2014-07-25 2020-08-04 Chemical and Metal Technologies LLC Extraction of target materials using CZTS sorbent
US10888836B2 (en) 2014-07-25 2021-01-12 Chemical and Metal Technologies LLC Extraction of target materials using CZTS sorbent

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2948305A1 (de) * 1979-11-30 1981-06-04 Deutsche Kommunal-Anlagen Miete GmbH, 8000 München Verfahren zur trockenen reinigung von quecksilberhaltigen gasen, insbesondere abgasen, thermischer prozesse
DE4117828A1 (de) * 1991-05-29 1992-12-03 Eberhard Dipl Ing Kruemmel Verfahren und vorrichtung zur delaborierung von munition
US5409522A (en) * 1994-04-20 1995-04-25 Ada Technologies, Inc. Mercury removal apparatus and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2948305A1 (de) * 1979-11-30 1981-06-04 Deutsche Kommunal-Anlagen Miete GmbH, 8000 München Verfahren zur trockenen reinigung von quecksilberhaltigen gasen, insbesondere abgasen, thermischer prozesse
DE4117828A1 (de) * 1991-05-29 1992-12-03 Eberhard Dipl Ing Kruemmel Verfahren und vorrichtung zur delaborierung von munition
US5409522A (en) * 1994-04-20 1995-04-25 Ada Technologies, Inc. Mercury removal apparatus and method

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9381492B2 (en) 2011-12-15 2016-07-05 Clariant Corporation Composition and process for mercury removal
US8876958B2 (en) 2011-12-15 2014-11-04 Clariant Corporation Composition and process for mercury removal
US10035094B2 (en) * 2014-07-25 2018-07-31 Chemical and Metal Technologies LLC Broad-spectrum matrix for contaminated emissions sorbent compounds and method of use
US9675933B2 (en) * 2014-07-25 2017-06-13 Chemical And Metal Technologies, Llc Emissions contaminant capture and collection device and method of use
US9962650B2 (en) * 2014-07-25 2018-05-08 Chemical and Metal Technologies LLC Emissions contaminant capture and collection system utilizing an integrated fluidized bed apparatus and method of use
US9968884B2 (en) * 2014-07-25 2018-05-15 Chemical and Metal Technologies LLC Reconfigurable segmental contaminated emissions capture and collection system utilizing a fluidized bed apparatus with a method for tilting and/or agitation
US20160023160A1 (en) * 2014-07-25 2016-01-28 Chemical and Metal Technologies LLC Emissions contaminant capture and collection device and method of use
US10500563B2 (en) 2014-07-25 2019-12-10 Chemical and Metal Technologies LLC Emissions control system including capability to clean and/or rejuvenate carbon-based sorbents and method of use
US10500569B2 (en) 2014-07-25 2019-12-10 Chemical and Metal Technologies LLC Emissions control system including capability to clean and/or rejuvenate CZTS sorbents, CZTS-alloy sorbents, and/or CZTS-mixture sorbents, and method of use
US10500539B2 (en) 2014-07-25 2019-12-10 Chemical and Metal Technologies LLC Emissions control system with CZTS sorbents, CZTS-based alloy sorbents, and/or carbon-based sorbents and method of use
US10730012B2 (en) 2014-07-25 2020-08-04 Chemical and Metal Technologies LLC Extraction of target materials using CZTS sorbent
US10888836B2 (en) 2014-07-25 2021-01-12 Chemical and Metal Technologies LLC Extraction of target materials using CZTS sorbent
US10994257B1 (en) 2014-07-25 2021-05-04 Chemical And Metal Technologies, Llc Extraction of target materials using CZTS sorbent
US11534734B2 (en) 2014-07-25 2022-12-27 Chemical and Metal Technologies LLC CZTS sorbent
CN108926980A (zh) * 2017-05-26 2018-12-04 化学和金属技术有限责任公司 使用综合流化床装置的排放物污染物的捕获和收集系统及其使用方法

Also Published As

Publication number Publication date
AU3548600A (en) 2000-11-02

Similar Documents

Publication Publication Date Title
DE19539728B4 (de) Monolithischer Zeolit/Katalysator-Wandflußadsorber
DE2838093C2 (fr)
DE4423329C2 (de) Vorrichtung zur Reinigung schadstoffbeladener Abluft durch heterogene Katalyse
EP0050243B1 (fr) Procédé et dispositif pour la purification de l'air chargé de gaz nocifs
DE19934932B4 (de) Verfahren und Vorrichtung zur Abscheidung von Feinstpartikeln aus dem Abgas von Brennkraftmaschinen
EP2095865B1 (fr) Dispositif de réduction de dioxine de Dibenzo, Dibenzo-Furan et d'émissions de particules
WO2000062906A1 (fr) Procede et dispositif d'epuration de gaz de combustion
DE2257968A1 (de) Vorrichtung zur reinigung der abgase von verbrennungsmotoren, insbesondere dieselmotoren
EP0387394B1 (fr) Procédé pour la fabrication du corps d'un filtre ou d'un catalyseur
EP2383130B1 (fr) Climatisation de véhicule automobile
EP0346803A1 (fr) Procédé et dispositif pour éloigner la suie et les composants condensables des gaz d'échappement de moteur diesel
DE69908299T2 (de) Plasmaunterstützte gasbehandlung
EP0056584B1 (fr) Filtre bifonctionnel pour le traitement de gaz d'échappement
EP0875667B1 (fr) Système d'épuration des gaz d'échappement pour moteurs diesel
DD231742A5 (de) Verfahren und vorrichtung zur entfernung unerwuenschter gasfoermiger bestandteile aus einem rauchgas
AT507105B1 (de) Verfahren und vorrichtung zur reinigung von bei verbrennungsprozessen anfallenden abgasen
EP0161470B1 (fr) Procédé et dispositif pour éliminer des substances gazeuses indésirables d'un gaz de fumée
WO2012069156A2 (fr) Dispositif de filtration et procédé de nettoyage d'un courant de gaz
DE19717890C1 (de) Verfahren und Vorrichtung zur plasmagestützten Zersetzung von Ruß in Verbrennungsabgasen
EP0342588B1 (fr) Méthode et dispositif pour purifier des gaz d'échappement avec des corps en forme de nid d'abeilles faits de composés de calcium
EP1941133A1 (fr) Element de filtrage et filtre destine a retraiter les gaz d'echappement
EP0191441B1 (fr) Procédé pour éliminer des composants indésirables d'un gaz de fumée
DE69815710T2 (de) Substrat für plasma-gasreaktoren
EP0564914A1 (fr) Installation pour l'agrandissement des petites particules adhésives
AT501042B1 (de) Vorrichtung zum reinigen von kraftfahrzeugabgasen

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 CA CH CN CR CU CZ DE DK DM DZ 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 NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW SD SL SZ TZ UG 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 BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
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