JP2014509257A - 海水スクラバーからの排出海水を処理するための方法及び装置 - Google Patents
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Abstract
Description
本発明は、二酸化硫黄を含有するプロセスガスと海水とを接触させることによる、プロセスガスから二酸化硫黄を除去する際に生じる排出海水を処理する方法に関する。
多くの工業プロセスでは、汚染物質を含有するプロセスガスが発生している。かかる工業プロセスの1つは、発電所などの燃焼プラントにおいて、石炭、石油、泥炭、廃石などの燃料の燃焼であり、それによって高温のプロセスガスが生じ、これはしばしば煙道ガスと呼ばれ、二酸化硫黄、SO2などの酸性ガスを含む汚染物質を含有する。煙道ガスが大気に放出され得る前に、できるだけ多くの酸性ガスを煙道ガスから除去する必要がある。汚染物質を含有するプロセスガスが生じる工業プロセスの別の例は、アルミナからのアルミニウムの電解製造である。このプロセスでは、二酸化硫黄、SO2を含有するプロセスガスは、電解槽の排気フード内で生じる。
本発明の課題は、海水を用いてガス脱硫プロセスからの排出海水を処理する方法を提供することであり、該方法は従来技術よりも更に効率的である。
図1は、発電所1を例示する模式的な側断面図である。発電所1は、給気管4を介して供給される、石炭又は石油などの燃料が、酸素供給ダクト6を介して供給される、酸素の存在下で燃焼するボイラー2を含む。酸素は、例えば、ボイラー2がいわゆる酸素燃料ボイラーである場合、空気の形で、及び/又は酸素ガスと再循環ガスとの混合物の形で供給され得る。燃料の燃焼により、高熱のプロセスガスが煙道ガスの形で発生する。石炭又は石油中に含有される硫黄種は、燃焼時に二酸化硫黄、SO2を形成し、これは煙道ガスの一部を形成する。
SO2(g)+H2O → HSO3 -(aq)+H+(aq)[eq.1.1a]
HSO3 -(aq) ←→ SO3 2-(aq)+H+(aq)[eq.1.1b]
HSO3 −+H++1/2O2(g) → SO4 2-+2H+[eq.1.2a]
SO3 2−+2H++1/2O2(g) → SO4 2-+2H+[eq.1.2b]
H+ + HCO3 - → H2O + CO2[eq.1.3]
HSO3 − + H++1/2O2(g) + 酵素 → SO4 2− + 2H+ + 酵素[eq.2.1a]
SO3 2− + 2H+ + 1/2O2(g) + 酵素 → SO4 2− + 2H+ + 酵素[eq.2.1b]
Claims (12)
- 二酸化硫黄を含有するプロセスガスと海水とを接触させることによってプロセスガスから二酸化硫黄を除去する際に生じる排出海水の処理方法であって、硫酸イオンを形成するための排出海水の重亜硫酸イオン及び/又は亜硫酸イオンの酸化を触媒するのに活性な、酵素の存在下で、排出海水と酸素とを接触させることを含む、前記方法。
- 酸素含有ガスと排出海水が混合される混合領域(MR)を形成するために、酸素含有ガスを排出海水中に吹き込み、且つ前記酵素が前記混合領域に隣接して存在するように配置することを更に含む、請求項1に記載の方法。
- 酵素溶液(172)を前記排出海水に供給することを更に含む、請求項1又は2に記載の方法。
- 少なくとも1つの担体の上に固定された前記酵素(68;270)の存在下で排出海水と酸素とを接触させることを更に含む、請求項1から3までのいずれか1項に記載の方法。
- 担持体(270)の形の担体の上に固定された前記酵素と排出海水とを混合することを更に含む、請求項4に記載の方法。
- 排出海水から担持体(270)を捕捉位置で除去し、且つ担持体(270)を、排出海水の輸送方向(S)から見て、捕捉位置の上流で排出海水に戻すことを更に含む、請求項5に記載の方法。
- 前記酵素を固定された状態で有する少なくとも1つの固定された酵素支持構造(68)の形の少なくとも1つの担体が固定されている、酸化池(43)に排出海水を通すことを更に含む、請求項4に記載の方法。
- プロセスガスと海水とを接触させて前記プロセスガスから二酸化硫黄を除去するための湿式スクラバー(14)と、プロセスガスから二酸化硫黄を除去すると共に、湿式スクラバー(14)で生じる排出海水を受け取るための酸化池システム(42)とを含む、海水ベースのプロセスガス浄化システムであって、酸化池システム(42;142;242)が、排出海水をそれらの処理の間に含有するための酸化池(43)、酸化池(43)中の排出海水に酸素を供給するための酸素供給システム(47)、及び排出海水の重亜硫酸イオン及び/又は亜硫酸イオンの硫酸イオンへの酸化を触媒する酵素と排出海水とを接触させるための酵素接触システム(68;168;268)を含むことを特徴とする、前記ガス浄化システム。
- 酸化池システム(42;242)の酵素接触システム(68;268)が、前記酵素が固定された少なくとも1つの担体(68;270)を含み、前記担体(68;270)が、少なくとも時々、酸化池システム(43)に浸漬している、請求項8に記載のガス浄化システム。
- 前記少なくとも1つの担体(68)が酸化池(43)に固定されている、請求項9に記載のガス浄化システム。
- 前記少なくとも1つの担体が、酸化池(43)中の排出海水に分散されるべき担持体(270)を含む、請求項9に記載のガス浄化システム。
- 前記酸化池システム(242)が、酸化池(43)の捕捉位置で排出海水から担持体(270)を除去し、且つ該担持体(270)を捕捉位置の上流で酸化池(43)に戻す酵素担持体輸送システム(268)を更に含む、請求項11に記載のガス浄化システム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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EP11153959.9A EP2486969B1 (en) | 2011-02-10 | 2011-02-10 | A method and a device for treating effluent seawater from a seawater scrubber |
EP11153959.9 | 2011-02-10 | ||
PCT/IB2012/000188 WO2012107817A1 (en) | 2011-02-10 | 2012-02-02 | A method and a device for treating effluent seawater from a seawater scrubber |
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JP2014509257A true JP2014509257A (ja) | 2014-04-17 |
JP5755340B2 JP5755340B2 (ja) | 2015-07-29 |
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Country | Link |
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US (1) | US9327230B2 (ja) |
EP (1) | EP2486969B1 (ja) |
JP (1) | JP5755340B2 (ja) |
KR (1) | KR101536608B1 (ja) |
CN (2) | CN103347590A (ja) |
ES (1) | ES2590359T3 (ja) |
SA (1) | SA112330248B1 (ja) |
TW (1) | TWI564067B (ja) |
WO (1) | WO2012107817A1 (ja) |
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JP2015213904A (ja) * | 2014-05-08 | 2015-12-03 | アルストム テクノロジー リミテッドALSTOM Technology Ltd | 消泡装置および海水泡制御のための使用方法 |
JP5971355B2 (ja) * | 2013-01-30 | 2016-08-17 | 富士電機株式会社 | 舶用ディーゼルエンジン排ガス処理システム |
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US9409124B2 (en) * | 2012-05-22 | 2016-08-09 | Alstom Technology Ltd | Flow control grid |
EP2738364A1 (en) * | 2012-11-29 | 2014-06-04 | Alfa Laval Corporate AB | Exhaust gas scrubber, system for treatment of scrubber water and use of an exhaust gas scrubber |
US9550688B2 (en) * | 2013-09-18 | 2017-01-24 | General Electric Technology Gmbh | Method and apparatus for catalyzing seawater aeration basins |
US20150076079A1 (en) * | 2013-09-18 | 2015-03-19 | Alstom Technology Ltd | Method and system for seawter foam control |
CN106029206A (zh) * | 2014-09-02 | 2016-10-12 | 富士电机株式会社 | 废气处理装置及废气处理装置的排水处理方法 |
KR101723399B1 (ko) | 2016-12-06 | 2017-04-05 | (주)유나 | 폐액 보관함 |
TWI646279B (zh) * | 2017-06-01 | 2019-01-01 | 華邦電子股份有限公司 | 管路系統 |
CN112316683A (zh) * | 2020-11-03 | 2021-02-05 | 中国石油化工股份有限公司 | 一种烟气脱硫装置及其方法 |
CN113757699B (zh) * | 2021-09-30 | 2022-07-29 | 深圳市环境工程科学技术中心有限公司 | 一种活性炭吸附装置 |
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2012
- 2012-02-02 CN CN2012800083357A patent/CN103347590A/zh active Pending
- 2012-02-02 JP JP2013553040A patent/JP5755340B2/ja not_active Expired - Fee Related
- 2012-02-02 KR KR1020137023613A patent/KR101536608B1/ko not_active IP Right Cessation
- 2012-02-02 CN CN201710235691.7A patent/CN107010710A/zh active Pending
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Also Published As
Publication number | Publication date |
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WO2012107817A1 (en) | 2012-08-16 |
US20130306556A1 (en) | 2013-11-21 |
JP5755340B2 (ja) | 2015-07-29 |
SA112330248B1 (ar) | 2015-04-01 |
ES2590359T3 (es) | 2016-11-21 |
KR20130126702A (ko) | 2013-11-20 |
TW201240717A (en) | 2012-10-16 |
CN107010710A (zh) | 2017-08-04 |
TWI564067B (zh) | 2017-01-01 |
CN103347590A (zh) | 2013-10-09 |
KR101536608B1 (ko) | 2015-07-14 |
EP2486969A1 (en) | 2012-08-15 |
US9327230B2 (en) | 2016-05-03 |
EP2486969B1 (en) | 2016-06-15 |
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