WO2003022407A1 - Procede d'epuration de gaz de combustion contenant de l'acide chlorhydrique et de l'ammoniac - Google Patents
Procede d'epuration de gaz de combustion contenant de l'acide chlorhydrique et de l'ammoniac Download PDFInfo
- Publication number
- WO2003022407A1 WO2003022407A1 PCT/FR2002/003095 FR0203095W WO03022407A1 WO 2003022407 A1 WO2003022407 A1 WO 2003022407A1 FR 0203095 W FR0203095 W FR 0203095W WO 03022407 A1 WO03022407 A1 WO 03022407A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- absorber
- ammonia
- hydrochloric acid
- purge
- weight
- 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
- B01D53/14—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
- B01D53/1493—Selection of liquid materials for use as absorbents
-
- 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
-
- 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
- B01D53/1412—Controlling the absorption process
-
- 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
- B01D53/1456—Removing acid 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
- B01D53/46—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
- B01D53/68—Halogens or halogen compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/20—Halogens or halogen compounds
- B01D2257/204—Inorganic halogen compounds
- B01D2257/2045—Hydrochloric acid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/406—Ammonia
Definitions
- the present invention relates to a process for the purification of combustion gases containing hydrochloric acid and ammonia.
- the combustion gases such as those resulting from the combustion of household waste, industrial or hospital often contain hydrochloric acid and may contain ammonia, either per se or because, for processing, during combustion or after combustion, ammonia or a derivative capable of generating ammonia was used.
- This mineral nitrogen is then present at too high a concentration to be able to be rejected, and its presence complicates the water treatment, which economically handicaps the solutions using wet scrubbers.
- the gases are introduced into an absorber, supplied by a concentrated solution of hydrochloric acid, the content of which is between 9 and 16% by weight, preferably between 12 and 15% by weight; - A quantity of make-up water, representing by weight of 6 to 15% of the gases introduced, is directed towards the absorber, so as to at least partially evaporate this make-up water in the absorber;
- the purge of the absorber is regulated, so that it contains a fraction of between 1 and 5%, by weight, of the hydrochloric acid introduced into the absorber, as well as a fraction greater than 80%, preferably 90%, by weight, of the ammonia introduced into the absorber
- the absorber is of the falling film, climbing film, spray or packing type; a desorption or stripping unit is supplied.
- a desorption or stripping unit is supplied.
- An ion exchange unit is supplied by means of the purge of the absorber, after dilution and addition of an alkali, and the recovered ammonia is returned to an oven;
- the purge from the absorber is returned directly to an oven, so as to burn it.
- the gases 102 resulting from the combustion carried out in an oven 1, contain hydrochloric acid HC1 at a concentration between 400 and 6000 mg / Nm 3 of dry gas, and ammonia at a concentration between 2 and 100 mg / Nm 3 of dry gas, preferably between 10 and 50 mg / Nm 3 .
- These gases are supplied to an absorption unit, or absorber 2, in which the gases are brought into contact with an absorption liquid 105, which performs the dual function of reducing the temperature of the gases to a value between 50 and 75 ° C, and capture a small fraction, not exceeding 5%, of hydrochloric acid, as well as at least 80% of ammonia.
- These fractions correspond to the percentages by mass of hydrochloric acid and ammonia, present in the gases introduced into the absorber by line 102.
- the unpurified gases containing a high content of hydrochloric acid, part of the ammonia may be present in the form of ammonium chloride.
- the group consisting of ammonia NH 3 and ammonium chloride NH 4 C1 is called ammonia.
- a very small part 106 representing less than 1% of the flow of concentrated acid 104, is evacuated outside the process, while the part 105 is returned to the absorber 2. It should be noted that the unit 2 combines the functions of a hardening or quenching and 'as a scrubber.
- This unit 2 could, for example, be a falling film absorber, a climbing film absorber, a packed column, a sheath containing sprayers or any other device making it possible to combine the quenching and absorber functions.
- the purge 106 can be evacuated continuously from the process, or else semi-continuously. Since the quenching process consumes water, a make-up water 103 is brought to this unit 3 so as to compensate for the evaporation produced by the absorber 2.
- This make-up water represents between 6 and 15%, by mass , gas powered 102.. It depends on the humidity already present in the gases and their temperature.
- a typical balance sheet given only by way of nonlimiting example, is presented below.
- the purge flow 106 is regulated so as to maintain a hydrochloric acid concentration at least equal to 9% by weight, while limiting the amount present in this stream to at most 5% of the amount of acid present in the gases 102.
- the gases 107 purified of most of the ammonia, are supplied to one or more washers 3.
- the gases 108 purified by these washers are discharged into the atmosphere by a chimney 4.
- the purge 109, generated by the washers, is then either sent to a water treatment or evaporated.
- this ammonia contained in this purge 106 will be recovered for example by desorption, or stripping, after dilution and addition of an alkali such as soda or lime, or else by exchange of ions after dilution, in order to be returned to the oven 1.
- an alkali such as soda or lime
- the stream 106 can be returned directly to the oven, so as to be incinerated with the other waste burned by this oven.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02777421A EP1425081A1 (fr) | 2001-09-12 | 2002-09-11 | Procede d'epuration de gaz de combustion contenant de l'acide chlorhydrique et de l'ammoniac |
JP2003526530A JP2005501710A (ja) | 2001-09-12 | 2002-09-11 | 塩化水素酸及びアンモニアを含有する燃料ガスを浄化するための方法 |
KR10-2004-7003442A KR20040049847A (ko) | 2001-09-12 | 2002-09-11 | 염산과 암모니아를 함유하는 연료 가스 정제 방법 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0111802A FR2829402B1 (fr) | 2001-09-12 | 2001-09-12 | Procede d'epuration de gaz de combustion contenant de l'acide chlorhydrique et de l'ammoniac |
FR01/11802 | 2001-09-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003022407A1 true WO2003022407A1 (fr) | 2003-03-20 |
Family
ID=8867216
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2002/003095 WO2003022407A1 (fr) | 2001-09-12 | 2002-09-11 | Procede d'epuration de gaz de combustion contenant de l'acide chlorhydrique et de l'ammoniac |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1425081A1 (fr) |
JP (1) | JP2005501710A (fr) |
KR (1) | KR20040049847A (fr) |
FR (1) | FR2829402B1 (fr) |
WO (1) | WO2003022407A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016086505A1 (fr) * | 2014-12-02 | 2016-06-09 | 北京空间飞行器总体设计部 | Dispositif d'élimination de gaz toxiques |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108394865B (zh) * | 2018-04-04 | 2021-07-16 | 青海盐湖工业股份有限公司 | 一种氯化氢解析系统及其工艺 |
CN109331613A (zh) * | 2018-11-15 | 2019-02-15 | 赛莱克斯微系统科技(北京)有限公司 | 尾气排放系统及方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4002565A (en) * | 1975-08-25 | 1977-01-11 | Chevron Research Company | Waste-water process |
US4374811A (en) * | 1979-10-05 | 1983-02-22 | Firma Carl Still Gmbh And Co. Kg | Method for cooling and separating chlorides and fluorides from ammoniacal gas |
JPS59203627A (ja) * | 1983-05-04 | 1984-11-17 | Tsukishima Kikai Co Ltd | 熱分解ガスの脱塩酸方法 |
-
2001
- 2001-09-12 FR FR0111802A patent/FR2829402B1/fr not_active Expired - Fee Related
-
2002
- 2002-09-11 JP JP2003526530A patent/JP2005501710A/ja active Pending
- 2002-09-11 EP EP02777421A patent/EP1425081A1/fr not_active Withdrawn
- 2002-09-11 WO PCT/FR2002/003095 patent/WO2003022407A1/fr active Application Filing
- 2002-09-11 KR KR10-2004-7003442A patent/KR20040049847A/ko not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4002565A (en) * | 1975-08-25 | 1977-01-11 | Chevron Research Company | Waste-water process |
US4374811A (en) * | 1979-10-05 | 1983-02-22 | Firma Carl Still Gmbh And Co. Kg | Method for cooling and separating chlorides and fluorides from ammoniacal gas |
JPS59203627A (ja) * | 1983-05-04 | 1984-11-17 | Tsukishima Kikai Co Ltd | 熱分解ガスの脱塩酸方法 |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 009, no. 071 (C - 272) 30 March 1985 (1985-03-30) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016086505A1 (fr) * | 2014-12-02 | 2016-06-09 | 北京空间飞行器总体设计部 | Dispositif d'élimination de gaz toxiques |
Also Published As
Publication number | Publication date |
---|---|
FR2829402A1 (fr) | 2003-03-14 |
KR20040049847A (ko) | 2004-06-12 |
FR2829402B1 (fr) | 2003-11-14 |
JP2005501710A (ja) | 2005-01-20 |
EP1425081A1 (fr) | 2004-06-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7118720B1 (en) | Method for combined removal of mercury and nitrogen oxides from off-gas streams | |
LU83959A1 (fr) | Procede pour reduire au minimum l'emission d'impuretes par des installations de combustions | |
EP1949956B1 (fr) | Procédé et installation d'épuration de fumées contenant des polluants acides | |
FR2620351A1 (fr) | Procede et dispositif pour eliminer par lavage des substances polluantes d'un courant de gaz d'echappement | |
WO1996009108A1 (fr) | Procede d'epuration des fumees par voie humide pour des polluants gazeux | |
WO2003022407A1 (fr) | Procede d'epuration de gaz de combustion contenant de l'acide chlorhydrique et de l'ammoniac | |
EP2465598B1 (fr) | Procédé d'épuration de fumées de combustion | |
EP1916024A1 (fr) | Unité et procédé de traitement d'eaux issues de procédés de raffinage | |
EP0750784B1 (fr) | Procede et installation d'epuration de fumees issues de l'incineration de dechets faiblement radioactifs | |
EP0735321B1 (fr) | Procédé pour la purification des effluents gazeux nocifs par conversion chimique | |
EP0384866B1 (fr) | Procédé pour l'épuration des fumées contenant des oxydes d'azote | |
EP0746384B1 (fr) | Extraction de metaux lourds contenus dans les cendres volantes et les residus d'epuration des fumees issues d'un four d'incineration | |
EP3700660A1 (fr) | Procédé de démercurisation d'effluents gazeux | |
WO2001041903A1 (fr) | Procede et installation de reduction de l'halogene elementaire dans un effluent gazeux | |
RU2104754C1 (ru) | Способ очистки газов от оксидов серы и азота | |
WO2021049246A1 (fr) | Procédé de traitement de gaz d'échappement et équipement de traitement | |
FR2795064A1 (fr) | Procede pour recueillir du brome | |
BE432460A (fr) | Procédé et dispositif pour la production d'urée | |
EP3700659A1 (fr) | Procédé de démercurisation d'effluents gazeux | |
FR2717249A1 (fr) | Procédé et installation d'épuration de fumées issues d'un incinérateur à fusion et vitrification des déchets. | |
Hofstadler et al. | WETFINE, a new gas cleaning technology for sinter and pellet plants | |
EP2486970B1 (fr) | Procédé d'épuration de fumées de combustion utilisant du bicarbonate ou du sesquicarbonate de sodium | |
WO2001054799A1 (fr) | Procede et installation d'epuration de fumees contenant des polluants condensables | |
JPS6287227A (ja) | 乾式排煙脱硫方法 | |
FR2752174A1 (fr) | Procede de traitement d'un catalyseur presentant une phase active soufree et contamine par un compose du mercure |
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 BY BZ CA CH CN CO CR CU CZ DE DM DZ EC EE ES FI GB GD GE GH HR HU ID IL IN IS JP KE KG KP KR LC LK LR LS LT LU LV MA MD MG MN MW MX MZ NO NZ OM PH PL PT RU SD SE SG SI SK SL TJ TM TN TR TZ UA UG US UZ VC VN YU ZA ZM |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ UG ZM ZW AM AZ BY KG KZ RU TJ TM AT BE BG CH CY CZ DK EE ES FI FR GB GR IE IT LU MC PT SE SK TR BF BJ CF CG CI 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 | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2002777421 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020047003442 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2003526530 Country of ref document: JP |
|
WWP | Wipo information: published in national office |
Ref document number: 2002777421 Country of ref document: EP |