EP3043889A1 - Procédé et installation de nettoyage de gaz d'échappement au moyen d'une installation de postcombustion régénérative - Google Patents

Procédé et installation de nettoyage de gaz d'échappement au moyen d'une installation de postcombustion régénérative

Info

Publication number
EP3043889A1
EP3043889A1 EP14752559.6A EP14752559A EP3043889A1 EP 3043889 A1 EP3043889 A1 EP 3043889A1 EP 14752559 A EP14752559 A EP 14752559A EP 3043889 A1 EP3043889 A1 EP 3043889A1
Authority
EP
European Patent Office
Prior art keywords
preheating stage
exhaust gas
regenerative
plant
cleaned
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Withdrawn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
EP14752559.6A
Other languages
German (de)
English (en)
Inventor
Kathrin Rohloff
Melanie Flaßpöhler
Timo Stender
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.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
ThyssenKrupp Industrial Solutions AG
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 ThyssenKrupp Industrial Solutions AG filed Critical ThyssenKrupp Industrial Solutions AG
Publication of EP3043889A1 publication Critical patent/EP3043889A1/fr
Withdrawn legal-status Critical Current

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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/343—Heat recovery
    • 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
    • B01D53/54—Nitrogen compounds
    • B01D53/58—Ammonia
    • 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
    • B01D53/54—Nitrogen compounds
    • B01D53/56—Nitrogen oxides
    • 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
    • B01D53/62—Carbon oxides
    • 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
    • B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
    • 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
    • B01D53/76—Gas phase processes, e.g. by using aerosols
    • 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
    • B01D53/8643—Removing mixtures of carbon monoxide or hydrocarbons and nitrogen oxides
    • B01D53/8646—Simultaneous elimination of the components
    • 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
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/36—Manufacture of hydraulic cements in general
    • C04B7/364—Avoiding environmental pollution during cement-manufacturing
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories or equipment specially adapted for rotary-drum furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/20—Arrangements for treatment or cleaning of waste gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2062—Ammonia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/50—Carbon oxides
    • B01D2257/502—Carbon monoxide
    • 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
    • B01D2258/0233—Other waste gases from cement factories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/65—Employing advanced heat integration, e.g. Pinch technology
    • B01D2259/655—Employing advanced heat integration, e.g. Pinch technology using heat storage materials

Definitions

  • the invention relates to a method and a system for purifying exhaust gases with a regenerative afterburner.
  • the afterburner system has at least two regenerators filled with heat storage bodies, which heat alternately at least one of the regenerators, in the combustion chamber the carbon compounds are oxidized at a temperature of more than 850 ° and the hot clean gas formed by the other Regenerator is removed.
  • the sequence of flow through the two regenerators is reversed to allow continuous operation with the absorption and release of the heat energy of the exhaust gas. Through this process, heat recovery efficiencies of more than 90% are achieved.
  • the invention is therefore based on the object to improve the method and the system for purifying exhaust gases with a regenerative afterburner so that operating problems of the post-combustion system are reduced and the service life of the system is increased.
  • the exhaust gases to be cleaned before being fed to the regenerative afterburner in at least one preheating to temperatures between 100 ° C and 250 ° C, preferably between 100 ° C and 200 ° C and most preferably between 120 ° C and 150 ° C, preheated.
  • the plant according to the invention for carrying out the above method provides, in addition to a regenerative afterburner, at least one upstream preheating stage in which the exhaust gases to be cleaned are preheated to the above temperatures.
  • the exhaust gases to be cleaned are, in particular, exhaust gas from the cement and mineral industries.
  • the regenerative afterburning system preferably comprises at least a first and a second heat storage and an oxidation zone arranged therebetween, wherein the exhaust gas preheated in the at least one preheating stage is alternately further heated in at least one of the heat accumulators, harmful components contained in the exhaust gas, such as hydrocarbon compounds, in the oxidation zone. oxidize and the resulting, purified exhaust gas is withdrawn through the at least one other heat storage.
  • the heating of the exhaust gas to be cleaned or a mixture of different gas streams can take place in the preheating, for example, by at least one indirect heat exchanger, wherein the heat is transferred in the heat exchanger, for example by means of a hot gas stream with or without a heat transfer medium, such as thermal oil, or by means of heat pipes.
  • the hot gas stream may in particular be the purified exhaust gas from the regenerative post-combustion plant.
  • preheater exhaust gas and / or cooling gas of a cement production process as hot gas in whole or in part.
  • the preheating stage as a combustion chamber and / or to provide a burner for heating the exhaust gas to be cleaned.
  • the amount of fuel supplied via the burner or the combustion chamber can be so be measured that in the regenerative incinerator no further or a correspondingly reduced amount of fuel must be supplied.
  • the at least one first and / or second heat storage for the reduction of nitrogen oxides and / or oxidation of the hydrocarbons may be at least partially equipped with catalytically active material.
  • Fig. 1 shows a plant for the purification of exhaust gases with a regenerative
  • Fig. 2 shows a plant for the purification of exhaust gases with a regenerative
  • a plant for cement clinker production is shown schematically by the reference numerals 1 to 8.
  • cement raw meal 1 is preheated in a preheater 2 operated with the exhaust gases of a rotary kiln 3 and optionally partially calcined before the preheated raw meal is finished in the rotary kiln 3 directly or via a calciner (not shown).
  • the fired cement clinker is then cooled in the clinker cooler 4.
  • the preheater exhaust gas 5 leaving the preheater 2 is cooled in a heat exchanger 6 from, for example, 400 ° C. to 320 ° C. before it is used in a raw mill 7 for drying raw material.
  • the Preheater 5 has after the raw mill 7, a temperature of less than 100 ° C and is dedusted in a subsequent exhaust filter 8.
  • the dedusted preheater exhaust gas 5 is optionally mixed with a pre-cleaned bypass exhaust 9 and forms the exhaust gas to be cleaned 10.
  • the optional bypass exhaust gas is withdrawn via a branching off in the region of the inlet of the rotary kiln 3 bypass line 1 1, cooled in a bypass quench 12 and in a filter 13th dusted.
  • the exhaust gas 10 to be purified is first supplied to a preheating stage 14 before it reaches the regenerative post-combustion plant 15 and leaves the post-combustion plant as purified exhaust gas 16.
  • the preheating stage 14 is formed in the illustrated embodiment by a heat exchanger 17 and an adjoining second heat exchanger 18.
  • the first heat exchanger 17 is designed as a gas-gas heat exchanger and transfers the heat of the purified exhaust gas 16 to the exhaust gas 10 to be cleaned.
  • the second heat exchanger 18 cooperates with the heat exchanger 6, wherein the heat of the preheater exhaust gas 5, for example via a heat transfer medium 19 between the two heat exchangers 6 and 18 is transmitted.
  • the exhaust gas 10 to be purified is heated in the preheating stage 14 from a temperature of partially below 100 ° C to temperatures between 100 ° C and 250 ° C, preferably between 100 ° C and 200 ° C and most preferably between 120 ° C and 150 ° C, preheated before it enters the regenerative incinerator 15.
  • the regenerative post-combustion plant 15 provides in the illustrated embodiment, a first heat storage 20, a second heat storage 21 and an oxidation zone 22 arranged therebetween, wherein the preheated in the preheating stage 14 exhaust gas 10 is further heated in one of the two heat storage, contained in the oxidation zone 22 in the exhaust gas harmful components, such as hydrocarbon compounds, oxidize and the resulting, purified exhaust gas 16 is withdrawn through the other heat exchanger.
  • a burner 23 in particular a natural gas burner, be provided in the oxidation zone.
  • At least one of the two heat accumulators can be equipped, inter alia, for the reduction of nitrogen oxides and / or for the oxidation of hydrocarbons, at least partially with catalytically active material.
  • means 24 are provided for the injection of an ammonia-containing reducing agent.
  • the preheating stage 14 has, instead of the heat exchangers 17 and 18, a combustion chamber 25 which, for example, has a burner 26, in particular a natural gas burner.
  • the exhaust gas 10 to be purified which in turn is composed of the dedusted exhaust gas 5 of the preheater 2 and possibly a pre-cleaned bypass gas 9 and optionally another hot gas, is heated up accordingly in the combustion chamber 25.
  • the desired temperature is to be such that the dew point of any pollutant components in the first and second heat storage 20, 21 of the regenerative afterburner 15 is not exceeded. If the supplied fuel is not completely oxidized in the upstream combustion chamber 25, it is guided with the exhaust gas into the regenerative after-combustion system 15.
  • the heating of the exhaust gas 10 to be cleaned in the preheating stage by means of one or more hot gases is not limited to the embodiment shown in FIG.
  • other, available hot gases such as the cooler exhaust air can be used.
  • a combination of at least one heat exchanger and a burner or a combustion chamber and the already mentioned mixture and / or separate heating of partial gas flows would be conceivable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Ecology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Environmental Sciences (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Incineration Of Waste (AREA)
  • Treating Waste Gases (AREA)

Abstract

L'invention concerne un procédé de nettoyage de gaz d'échappement au moyen d'une installation de postcombustion régénérative (15), dans lequel les gaz d'échappement à nettoyer sont préchauffés dans au moins un étage de préchauffage (14) à des températures comprises entre 100°C et 250°C, de préférence entre 100°C et 200°C et idéalement entre 120°C et 150°C avant de les introduire dans l'installation de postcombustion régénérative. L'installation selon l'invention destinée à mettre en œuvre le procédé ci-dessus comporte, en plus d'une installation de postcombustion régénérative (15), au moins un étage de préchauffage (14) placé en amont dans lequel les gaz de combustion à nettoyer sont préchauffés aux températures ci-dessus.
EP14752559.6A 2013-09-11 2014-08-05 Procédé et installation de nettoyage de gaz d'échappement au moyen d'une installation de postcombustion régénérative Withdrawn EP3043889A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013109977.7A DE102013109977A1 (de) 2013-09-11 2013-09-11 Verfahren und Anlage zur Reinigung von Abgasen mit einer regenerativen Nachverbrennungsanlage
PCT/EP2014/002144 WO2015036073A1 (fr) 2013-09-11 2014-08-05 Procédé et installation de nettoyage de gaz d'échappement au moyen d'une installation de postcombustion régénérative

Publications (1)

Publication Number Publication Date
EP3043889A1 true EP3043889A1 (fr) 2016-07-20

Family

ID=51357894

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14752559.6A Withdrawn EP3043889A1 (fr) 2013-09-11 2014-08-05 Procédé et installation de nettoyage de gaz d'échappement au moyen d'une installation de postcombustion régénérative

Country Status (4)

Country Link
US (1) US20160199779A1 (fr)
EP (1) EP3043889A1 (fr)
DE (1) DE102013109977A1 (fr)
WO (1) WO2015036073A1 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN108404626A (zh) * 2018-04-25 2018-08-17 杨柳 一种工业用有机废气净化塔

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TWI680010B (zh) * 2015-03-26 2019-12-21 美商康寧公司 用於選擇性非催化式ＮＯ<sub>ｘ</sub>還原的方法與系統
DE102016121301A1 (de) * 2016-11-08 2018-05-09 Thyssenkrupp Ag Anlage und Verfahren zur Reinigung eines Abgases einer Bearbeitungsvorrichtung der Zement-, Kalk- oder Mineralsindustrie
DE102017101507B4 (de) 2017-01-26 2022-10-13 Chemisch Thermische Prozesstechnik Gmbh Verfahren und Vorrichtung zur Abgasreinigung
DE102018200248A1 (de) * 2018-01-10 2019-07-11 Thyssenkrupp Ag Schadstoffminderung von Abgasen bei der thermischen Materialbehandlung
CN109045965B (zh) * 2018-09-03 2024-05-31 环境保护部华南环境科学研究所 一种废气净化系统及方法
DE102021125432A1 (de) 2021-09-30 2023-03-30 Dürr Systems Ag Fluidreinigungssystem und verfahren zur fluidreinigung
JP7714304B2 (ja) * 2023-07-28 2025-07-29 中外炉工業株式会社 臭気ガス処理装置

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CA2354876C (fr) * 2001-07-27 2007-03-13 Vladimir Ponomarev Dispositif d'oxydation thermique a recuperation de chaleur
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CN108404626A (zh) * 2018-04-25 2018-08-17 杨柳 一种工业用有机废气净化塔

Also Published As

Publication number Publication date
DE102013109977A1 (de) 2015-03-12
WO2015036073A1 (fr) 2015-03-19
US20160199779A1 (en) 2016-07-14

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