RU97111848A - METHOD FOR SEPARATING GAS-POLLUTED POLLUTIONS FROM HOT PROCESS GASES - Google Patents

METHOD FOR SEPARATING GAS-POLLUTED POLLUTIONS FROM HOT PROCESS GASES

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Publication number
RU97111848A
RU97111848A RU97111848/25A RU97111848A RU97111848A RU 97111848 A RU97111848 A RU 97111848A RU 97111848/25 A RU97111848/25 A RU 97111848/25A RU 97111848 A RU97111848 A RU 97111848A RU 97111848 A RU97111848 A RU 97111848A
Authority
RU
Russia
Prior art keywords
dust
mixer
process gases
quicklime
supplied
Prior art date
Application number
RU97111848/25A
Other languages
Russian (ru)
Other versions
RU2147919C1 (en
Inventor
Охман Стефан
Брингфорс Нильс
Original Assignee
АББ Флэкт АБ
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
Priority claimed from SE9404105A external-priority patent/SE504440C2/en
Application filed by АББ Флэкт АБ filed Critical АББ Флэкт АБ
Publication of RU97111848A publication Critical patent/RU97111848A/en
Application granted granted Critical
Publication of RU2147919C1 publication Critical patent/RU2147919C1/en

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Claims (5)

1. Способ отделения газообразных загрязнений, таких, как диоксид серы, из горячих процессных газов, таких как дымовые газы, в котором процессные газы проходят через реактор (10) контактирования, где абсорбирующее вещество в виде частиц, которое химически реагирует с газообразными загрязнениями, вводится во влажном состоянии в процессные газы для превращения газообразных загрязнений в отделяемую пыль, после чего процессные газы проходят через сепаратор (5) пыли, в котором пыль отделяется от процессных газов, и из которого выгружаются очищенные процессные газы, часть пыли, отделенной в сепараторе (5) пыли, проходит к смесителю (11), в котором она перемешивается и снабжается водой так, чтобы быть влажной, после чего она рециркулирует как абсорбирующее вещество посредством введения в процессные газы вместе с добавлением свежего абсорбента, отличающийся тем, что негашеная известь добавляется в качестве свежего абсорбента и тем, что основная часть пыли, отделенной в сепараторе (5) пыли, подается и удаляется из смесителя (11) в основном непрерывным потоком, пыль задерживается в смесителе настолько долго и рециркулирует столько раз, что общее время нахождения негашеной извести в смесителе (11) во влажном состоянии достаточно велико для того, чтобы негашеная известь имела время в основном завершить взаимодействие с водой, поданной к смесителю, и образовать гашеную известь.1. A method for separating gaseous contaminants, such as sulfur dioxide, from hot process gases, such as flue gases, in which process gases pass through a contacting reactor (10), where an absorbent particulate material that chemically reacts with gaseous contaminants is introduced in the wet state into process gases to convert gaseous contaminants into separated dust, after which the process gases pass through a dust separator (5), in which the dust is separated from the process gases, and from which the cleaned process gases, part of the dust separated in the dust separator (5) passes to a mixer (11), in which it is mixed and supplied with water so as to be moist, after which it is recycled as an absorbent substance by introduction into the process gases together with the addition fresh absorbent, characterized in that quicklime is added as fresh absorbent and in that the main part of the dust separated in the dust separator (5) is supplied and removed from the mixer (11) by a substantially continuous flow, the dust is held in the mixer so long and recycles so many times that the total time that quicklime is in the mixer (11) in the wet state is large enough so that quicklime has time to basically complete the interaction with the water supplied to the mixer and form slaked lime. 2. Способ по п. 1, отличающийся тем, что свежий абсорбент в виде негашеной извести подается к смесителю (11). 2. The method according to p. 1, characterized in that the fresh absorbent in the form of quicklime is fed to the mixer (11). 3. Способ по п. 1, отличающийся тем, что свежий абсорбент в виде негашеной извести добавляется к той части пыли, отделенной в сепараторе (5) пыли, которая подается к смесителю (11). 3. The method according to p. 1, characterized in that the fresh absorbent in the form of quicklime is added to that part of the dust separated in the dust separator (5), which is supplied to the mixer (11). 4. Способ по п. 1, отличающийся тем, что свежий абсорбент в виде негашеной извести вводится непосредственно в дымовые газы в реакторе (10) контактирования. 4. The method according to p. 1, characterized in that the fresh absorbent in the form of quicklime is introduced directly into the flue gases in the contacting reactor (10). 5. Способ по любому одному из предшествующих пунктов, отличающийся тем, что воздушный поток подается к смесителю (11) для того, чтобы флюидизировать пыль, находящуюся там. 5. The method according to any one of the preceding paragraphs, characterized in that the air flow is supplied to the mixer (11) in order to fluidize the dust located there.
RU97111848A 1994-11-28 1995-11-24 Method of separating gaseous impurities from hot process gases RU2147919C1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9404105-0 1994-11-28
SE9404105A SE504440C2 (en) 1994-11-28 1994-11-28 Ways to separate gaseous pollutants from hot process gases
PCT/SE1995/001403 WO1996016722A1 (en) 1994-11-28 1995-11-24 Method for separating gaseous pollutants from hot process gases

Publications (2)

Publication Number Publication Date
RU97111848A true RU97111848A (en) 1999-05-27
RU2147919C1 RU2147919C1 (en) 2000-04-27

Family

ID=20396125

Family Applications (1)

Application Number Title Priority Date Filing Date
RU97111848A RU2147919C1 (en) 1994-11-28 1995-11-24 Method of separating gaseous impurities from hot process gases

Country Status (20)

Country Link
EP (1) EP0804273A1 (en)
JP (1) JP3640674B2 (en)
KR (1) KR100384589B1 (en)
CN (1) CN1080137C (en)
AU (1) AU692014B2 (en)
BR (1) BR9509831A (en)
CZ (1) CZ157497A3 (en)
EE (1) EE04049B1 (en)
FI (1) FI972233A0 (en)
HU (1) HU220402B (en)
MD (1) MD1020C2 (en)
PL (1) PL320426A1 (en)
RO (1) RO115421B1 (en)
RU (1) RU2147919C1 (en)
SE (1) SE504440C2 (en)
SI (1) SI9520141A (en)
SK (1) SK66197A3 (en)
UA (1) UA52592C2 (en)
WO (1) WO1996016722A1 (en)
ZA (1) ZA959876B (en)

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AT404565B (en) * 1997-06-05 1998-12-28 Scheuch Alois Gmbh METHOD FOR PURIFYING POLLUTANT-GASES
SE514592C2 (en) * 1998-05-18 2001-03-19 Flaekt Ab Method and apparatus for flue gas purification with extinguishing lime in immediate connection with flue gas purification
SE512227C2 (en) * 1998-06-24 2000-02-14 Flaekt Ab Ways to clean flue gases during the start-up of a boiler
US6290921B1 (en) * 1999-11-03 2001-09-18 Foster Wheeler Enegeria Oy Method and apparatus for binding pollutants in flue gas
SE523667C2 (en) 2002-09-20 2004-05-11 Alstom Switzerland Ltd Method and apparatus for separating gaseous pollutants from hot gases by particulate absorbent material and mixer for wetting the absorbent material
ES2312080T3 (en) 2006-02-06 2009-02-16 Alstom Technology Ltd PROCEDURE AND DEVICE TO CONTROL THE ABSORPTION OF GASEOUS POLLUTANTS FROM HOT PROCESS GASES.
ATE497829T1 (en) 2006-07-04 2011-02-15 Alstom Technology Ltd METHOD AND DEVICE FOR SEPARATING GASEOUS POLLUTANTS FROM HOT EXHAUST GASES
AT504426B8 (en) * 2006-10-24 2008-09-15 Scheuch Gmbh APPARATUS FOR MOISTURIZING A SORPTION AGENT
US7766997B2 (en) 2007-12-21 2010-08-03 Alstom Technology Ltd Method of reducing an amount of mercury in a flue gas
US7850936B2 (en) 2008-02-18 2010-12-14 Alstom Technology Ltd Dry sulfur dioxide (SO2) scrubbing
CN101513589B (en) * 2009-03-03 2011-07-20 桑德环境资源股份有限公司 Method and device for purification of flue gases by semidry process
US8192529B2 (en) * 2009-03-10 2012-06-05 Gatton Jr Lawrence H Integrated dry scrubber system
EP2457637B8 (en) 2010-11-24 2016-09-21 General Electric Technology GmbH Method of cleaning a carbon dioxide rich flue gas and a boiler system
US8728211B2 (en) 2012-03-30 2014-05-20 Alstom Technology Ltd Nozzle for spraying liquid and a mixer comprising the nozzle
US9457366B2 (en) 2012-07-13 2016-10-04 General Electric Technology Gmbh Spray lance arrangement
US8663586B1 (en) 2012-08-07 2014-03-04 Alstom Technology Ltd High performance mercury capture
US9108152B2 (en) * 2013-11-26 2015-08-18 Alstom Technology Ltd Dry scrubber system with low load distributor device
US8906333B1 (en) * 2013-11-27 2014-12-09 Alstom Technology Ltd Dry scrubber system with air preheater protection
CN105617851B (en) * 2016-03-16 2018-08-28 中国科学院城市环境研究所 A kind of method and its device of efficient double tower semi-dry desulphurization
JP7360378B2 (en) 2017-09-06 2023-10-12 エス．ア．ロイスト ルシェルシュ エ デヴロップマン Method of treating exhaust gas in CDS exhaust gas treatment

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SE453570B (en) * 1985-10-09 1988-02-15 Flaekt Ab Plant for sepg. acid components from gas mixt.
SE458095B (en) * 1986-06-27 1989-02-27 Flaekt Ab Sepn. system for pollutants from gas-form medium
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JP3035015B2 (en) * 1991-08-13 2000-04-17 三菱重工業株式会社 Desulfurization method

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