JP5345676B2 - ガス流から塩素を吸収する方法 - Google Patents
ガス流から塩素を吸収する方法 Download PDFInfo
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- JP5345676B2 JP5345676B2 JP2011508895A JP2011508895A JP5345676B2 JP 5345676 B2 JP5345676 B2 JP 5345676B2 JP 2011508895 A JP2011508895 A JP 2011508895A JP 2011508895 A JP2011508895 A JP 2011508895A JP 5345676 B2 JP5345676 B2 JP 5345676B2
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- Japan
- Prior art keywords
- chlorine
- gas stream
- water
- hydrochloric acid
- hydrogen peroxide
- Prior art date
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Classifications
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- 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
- 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
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- 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
- B01D53/8659—Removing halogens or halogen compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/106—Peroxides
-
- 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
- B01D2257/202—Single element halogens
- B01D2257/2025—Chlorine
-
- 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
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- 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)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Description
Cl2+H2O→HCl+HClO (1)
HCl+HClO+2NaOH→NaCl+NaClO+H2O (2)
しかし、その他の塩基性吸収剤(石灰乳、アンモニア、アミン、炭酸塩、炭酸水素塩等)も可能である。
他に記載がない限り、全ての量および百分率表示は質量に対するものである。
塩素含有の不活性ガス流を、水酸化ナトリウム溶液の吸収サイクルで作動されるスクラバーに通す。排水が排水処理に流れ込み、該処理はpH値を調整し、かつ還元剤によってNaOCl負荷量をNaClに変換し、かつ排水として放出する。分離された全ての塩素を塩化ナトリウムに変え、かつ排水中に放出する。それゆえこの塩素は物質結合から取り除かれ、かつ失われる。
塩素含有の不活性ガス流を、塩酸の吸収サイクルで作動される1つ(または複数)のスクラバーに通し、そこに水および過酸化水素を供給するかまたはトレーを介して添加する。生じた塩酸を、塩化水素吸収に供する。
塩素含有の不活性ガス流を、pH値制御された水酸化ナトリウム水溶液の吸収サイクルで作動されるスクラバーに通す。形成される次亜塩素酸ナトリウムを、過酸化水素の酸化還元制御された添加によってNaClに変換する。該スクラバーを、塩含有の排水流が抜け出す。
塩素含有の不活性ガス流を、塩酸の吸収サイクルで作動される1つ(または複数)のスクラバーに通し、そこに水および過酸化水素を酸化還元制御および伝導性制御して供給および/またはトレーを介して添加する。生じた塩酸は、別個の製造プロセスにおいて利用する。
水が充填された不規則充填塔内に、37℃および20mbarの減圧下で、1.7%の塩素含有率、0.017%の塩化水素含有率、3.6%の二酸化炭素含有率および71.2%の窒素含有率を有するガス流を導入する。過酸化水素の制御された添加によって、次亜塩素酸を含有しない、2%の塩酸濃度を有する排水流をつくり出した。
Claims (5)
- 窒素、酸素、二酸化炭素、アルゴン、ヘリウムおよびそれらの混合物から選択される、塩素を含有するガス流から、水中でCl2の形の塩素を吸収する方法であって、その際、次亜塩素酸の形成が、過酸化水素の制御された添加によって抑えられ、かつ塩酸が形成される、塩素を含有するガス流から塩素を吸収する方法。
- 塩素以外に、塩素100体積部に対して、水に吸収されるその他のガス状の成分を、高くても3体積部含有するガス流を使用する、請求項1記載の方法。
- 塩素を含有するガス流として空気を使用する、請求項1または2記載の方法。
- 塩素を含有するガス流が、順次2つ以上のステップを通過する、請求項1から3までのいずれか1項記載の方法。
- 塩素を吸収する装置として、棚段塔、不規則充填塔、スクラバーまたは湿式集塵機を使用する、請求項1から4までのいずれか1項記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008001795A DE102008001795A1 (de) | 2008-05-15 | 2008-05-15 | Verfahren zur Absorption von Chlor aus Gasströmen |
DE102008001795.7 | 2008-05-15 | ||
PCT/EP2009/055715 WO2009138401A1 (de) | 2008-05-15 | 2009-05-12 | Verfahren zur absorption von chlor aus gasströmen |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011520750A JP2011520750A (ja) | 2011-07-21 |
JP5345676B2 true JP5345676B2 (ja) | 2013-11-20 |
Family
ID=40974484
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011508895A Active JP5345676B2 (ja) | 2008-05-15 | 2009-05-12 | ガス流から塩素を吸収する方法 |
Country Status (8)
Country | Link |
---|---|
US (1) | US8303687B2 (ja) |
EP (1) | EP2276554B1 (ja) |
JP (1) | JP5345676B2 (ja) |
KR (1) | KR101249533B1 (ja) |
CN (1) | CN102026706B (ja) |
AT (1) | ATE546212T1 (ja) |
DE (1) | DE102008001795A1 (ja) |
WO (1) | WO2009138401A1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015057754A1 (en) | 2013-10-16 | 2015-04-23 | Saudi Basic Industries Corporation | Process for the purification of c02 from chlorinated hydrocarbons |
EP3057703A1 (en) * | 2013-10-16 | 2016-08-24 | Saudi Basic Industries Corporation | Purification of carbon dioxide streams |
DE102014207160A1 (de) | 2014-04-15 | 2015-10-15 | Eos Gmbh Electro Optical Systems | Umluftfiltervorrichtung für eine Vorrichtung zum schichtweisen Herstellen eines dreidimensionalen Objekts |
CN108017039A (zh) * | 2017-12-24 | 2018-05-11 | 江苏梅兰化工有限公司 | 二氟一氯甲烷副产hcl生产高纯盐酸的制备方法及装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1963946B2 (de) * | 1969-12-20 | 1972-02-17 | Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt | Verfahren zur herstellung von chlor |
DE2138129A1 (de) * | 1971-07-30 | 1973-03-29 | Degussa | Verfahren zur herstellung von chlor |
US3896213A (en) * | 1973-07-05 | 1975-07-22 | Olin Corp | Process for disposing of off-gases containing carbon dioxide and chlorine |
DE2545342A1 (de) * | 1975-10-09 | 1977-04-21 | Bayer Ag | Verfahren zur absorption von chlor |
SU697160A1 (ru) | 1977-01-19 | 1979-11-15 | Предприятие П/Я Г-4232 | Способ очистки абгазов |
DE3921714A1 (de) | 1989-07-01 | 1991-01-10 | Hoechst Ag | Verfahren zur selektiven absorption von chlor aus co(pfeil abwaerts)2(pfeil abwaerts)-haltigen abgasen |
US5160707A (en) * | 1989-08-25 | 1992-11-03 | Washington Suburban Sanitary Commission | Methods of and apparatus for removing odors from process airstreams |
CA2079633C (en) * | 1992-07-31 | 1998-04-28 | John Robert Jackson | Method for the preparation of chlorates from waste gas streams obtained from the production of chlorine dioxide |
US5527517A (en) * | 1994-11-23 | 1996-06-18 | Philip Morris Incorporated | Liquid scrubbing of gas-phase contaminants |
US5705140A (en) * | 1995-07-18 | 1998-01-06 | Transformation Technologies, Ltd. | Process for the transformation of halogenated refrigerant gases |
US6409981B1 (en) * | 1997-04-25 | 2002-06-25 | Imperial Chemical Industries Plc | Process for removing chlorine from gas stream |
DE102006023939A1 (de) * | 2006-05-19 | 2007-11-22 | Bayer Materialscience Ag | Verfahren zur Absorption von Chlor aus einem Chlor- und Kohlendioxid-enthaltenden Gas |
-
2008
- 2008-05-15 DE DE102008001795A patent/DE102008001795A1/de not_active Withdrawn
-
2009
- 2009-05-12 WO PCT/EP2009/055715 patent/WO2009138401A1/de active Application Filing
- 2009-05-12 KR KR1020107022974A patent/KR101249533B1/ko active IP Right Grant
- 2009-05-12 US US12/922,877 patent/US8303687B2/en active Active
- 2009-05-12 AT AT09745733T patent/ATE546212T1/de active
- 2009-05-12 JP JP2011508895A patent/JP5345676B2/ja active Active
- 2009-05-12 CN CN200980116772.9A patent/CN102026706B/zh active Active
- 2009-05-12 EP EP09745733A patent/EP2276554B1/de active Active
Also Published As
Publication number | Publication date |
---|---|
US8303687B2 (en) | 2012-11-06 |
CN102026706A (zh) | 2011-04-20 |
WO2009138401A1 (de) | 2009-11-19 |
DE102008001795A1 (de) | 2009-11-19 |
EP2276554B1 (de) | 2012-02-22 |
CN102026706B (zh) | 2014-06-25 |
KR20100137508A (ko) | 2010-12-30 |
EP2276554A1 (de) | 2011-01-26 |
US20110011263A1 (en) | 2011-01-20 |
KR101249533B1 (ko) | 2013-04-01 |
ATE546212T1 (de) | 2012-03-15 |
JP2011520750A (ja) | 2011-07-21 |
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