JPS62247826A - Method for removing acidic gas and mercury contained in combustion exhaust gas - Google Patents
Method for removing acidic gas and mercury contained in combustion exhaust gasInfo
- Publication number
- JPS62247826A JPS62247826A JP61088231A JP8823186A JPS62247826A JP S62247826 A JPS62247826 A JP S62247826A JP 61088231 A JP61088231 A JP 61088231A JP 8823186 A JP8823186 A JP 8823186A JP S62247826 A JPS62247826 A JP S62247826A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- gas
- mercury
- reactant
- acidic gas
- 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.)
- Granted
Links
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 229910052753 mercury Inorganic materials 0.000 title claims abstract description 38
- 230000002378 acidificating effect Effects 0.000 title claims abstract description 16
- 238000002485 combustion reaction Methods 0.000 title claims description 11
- 238000000034 method Methods 0.000 title claims description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 26
- 239000000376 reactant Substances 0.000 claims abstract description 21
- 239000000843 powder Substances 0.000 claims abstract description 18
- 239000002002 slurry Substances 0.000 claims abstract description 9
- 239000000428 dust Substances 0.000 claims abstract description 5
- 239000002253 acid Substances 0.000 claims description 16
- 150000002731 mercury compounds Chemical class 0.000 claims description 5
- -1 reaction aids Substances 0.000 claims 1
- 238000005507 spraying Methods 0.000 claims 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract description 8
- 239000000920 calcium hydroxide Substances 0.000 abstract description 8
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract description 8
- 235000011116 calcium hydroxide Nutrition 0.000 abstract description 8
- 239000011812 mixed powder Substances 0.000 abstract description 5
- 230000003472 neutralizing effect Effects 0.000 abstract description 5
- 239000004071 soot Substances 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 50
- 239000003795 chemical substances by application Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000010800 human waste Substances 0.000 description 2
- 239000002440 industrial waste Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000010451 perlite Substances 0.000 description 2
- 235000019362 perlite Nutrition 0.000 description 2
- 239000010801 sewage sludge Substances 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は都市ごみ焼却炉、産業廃棄物焼却炉。[Detailed description of the invention] [Industrial application field] The present invention is a municipal waste incinerator and an industrial waste incinerator.
し尿・下水汚泥焼却炉等の燃焼排ガス中の水銀及び酸性
ガスの除去方法に関する。This article relates to a method for removing mercury and acid gas from combustion exhaust gas from human waste/sewage sludge incinerators, etc.
燃焼排ガス中に含まれる酸性ガス（例えばＩ（Ｃ／、
ＢＯＸ ）と水銀又は水銀化合物を除去する方法とし
てはｐＨを７〜９位に調整したアルカリ吸収液中に液体
キレート剤を添加した吸収液と気液接触を図り酸性ガス
と水銀を同時に吸収液側へ移行させる方法がある。（井
出、古角、茂中「都市と廃棄物Ｊｖｏ１．１５．−５．
６７〜８６ （１９８５） ）これに対し、乾式法で酸
性ガスと水銀を同時に除去する方法は従来なかった。Acid gases contained in combustion exhaust gas (e.g. I(C/,
BOX) and mercury or mercury compounds can be removed by making gas-liquid contact with an alkaline absorption solution whose pH has been adjusted to 7 to 9 and adding a liquid chelating agent to the absorption solution to remove acidic gas and mercury at the same time. There is a way to move it to . (Ide, Furusumi, Shigenaka “Cities and Waste Jvo1.15.-5.
67-86 (1985)) On the other hand, there has been no dry method for simultaneously removing acid gas and mercury.
本発明は、従来存在しなかった、乾式法で燃焼排ガス中
の酸性ガスと水銀を同時に処理する方法を提供しようと
するもので、高い除去率と設備の簡素化を可能とするも
のである。The present invention aims to provide a method for simultaneously treating acid gas and mercury in combustion exhaust gas using a dry method, which has not existed in the past, and enables a high removal rate and simplification of equipment.
本発明は酸性ガス、水銀、水銀化合物等を含有する燃焼
排ガス中に、スラリー状の酸性ガス中和剤を噴霧して排
ガスと十分に接触した後、該排ガス中に水銀反応剤と反
応助剤との混合粉末を噴射してガスと粉末との接触を行
い、さらに、その後方にバグフィルタを設けて排ガス中
の酸性ガス中和剤、水銀反応剤９反応助剤、ばいじん等
を捕集するとともに、該捕集灰の層を排ガスが通過する
ようにしたことを特徴とする排ガス中の酸性ガス、水銀
及び水銀化合物の除去方法である。The present invention sprays an acid gas neutralizer in the form of a slurry into a combustion exhaust gas containing acid gas, mercury, mercury compounds, etc., makes sufficient contact with the exhaust gas, and then contains a mercury reactant and a reaction aid in the exhaust gas. A mixed powder is injected to bring the gas into contact with the powder, and a bag filter is installed behind it to collect the acid gas neutralizer, mercury reactant 9 reaction aid, soot, etc. in the exhaust gas. The present invention also provides a method for removing acid gas, mercury, and mercury compounds in exhaust gas, characterized in that the exhaust gas is caused to pass through the layer of collected ash.
第１図に本発明に係る水銀と酸性ガスの除去方法を実施
する装置の構成図を示す。図中１は燃焼排ガス発生源（
例えば都市ごみ焼却炉、産業廃棄物焼却炉、し尿・下水
汚泥焼却炉）、２は反応塔、３は消石灰スラリー供給タ
ンク、４は供給ポンプ、５はアトマイズエアライン、６
は排ガスダクト、７は粉体サイロ、８は粉体定量供給機
、９は粉体輸送空気ファン、１０は粉体供給ノズル、１
１はバグフィルタ−１１２は排気ファン、１５は煙突、
１４は捕集灰である。FIG. 1 shows a block diagram of an apparatus for carrying out the method for removing mercury and acidic gases according to the present invention. 1 in the figure is the combustion exhaust gas generation source (
For example, municipal waste incinerator, industrial waste incinerator, human waste/sewage sludge incinerator), 2 is a reaction tower, 3 is a slaked lime slurry supply tank, 4 is a supply pump, 5 is an atomizing airline, 6
is an exhaust gas duct, 7 is a powder silo, 8 is a powder quantitative feeder, 9 is a powder transport air fan, 10 is a powder supply nozzle, 1
1 is a bag filter, 112 is an exhaust fan, 15 is a chimney,
14 is collected ash.
燃焼排ガス発生源１で発生した水銀と酸性ガスを含む燃
焼排ガスを反応塔２へ導く。ここでは、消石灰スラリー
供給タンク５から供給ポンプ４によって、消石灰スラリ
ーが反応塔へ供給され、アトマイズエアライン５から送
られる空気によって、反応塔２内へ噴霧されておシ、酸
性ガスはこの反応塔２内で消石灰により中和吸収され、
排ガス中より除去される。The combustion exhaust gas containing mercury and acid gas generated in the combustion exhaust gas generation source 1 is guided to the reaction tower 2. Here, slaked lime slurry is supplied from the slaked lime slurry supply tank 5 to the reaction tower by the supply pump 4, and is sprayed into the reaction tower 2 by air sent from the atomizing airline 5, and the acidic gas is removed from the reaction tower. Neutralized and absorbed by slaked lime within 2,
Removed from exhaust gas.
つぎに反応塔２の後流排ガスダクト６中に、粉体供給ノ
ズル１０によって反応助剤と水銀反応剤混合粉体を噴射
する。反応助剤と水銀反応混合粉体は混合サイロ７から
、粉体定量供給機８によって所定量切出し、粉体輸送フ
ァン９から送られる空気によって粉体供給ノズル１０へ
輸送する。水銀反応剤は反応助剤と混合して使用するた
めに希釈化が図られ、単独噴射に比べて排ガス中への分
散効果が高まる。Next, the reaction aid and mercury reactant mixed powder is injected into the downstream exhaust gas duct 6 of the reaction tower 2 by the powder supply nozzle 10. A predetermined amount of the reaction aid and mercury reaction mixture powder is cut out from the mixing silo 7 by a powder quantitative feeder 8 and transported to a powder supply nozzle 10 by air sent from a powder transport fan 9. Since the mercury reactant is used in combination with a reaction aid, it is diluted and the dispersion effect in the exhaust gas is enhanced compared to when it is injected alone.
排ガス中に噴射された水銀反応剤は排ガス中の水銀と迅
速に反応し水銀を排ガス中から粉体側へ固定する。水銀
及び酸性ガスを固定した反応剤及び中和剤と未反応の反
応剤及び中和剤。The mercury reactant injected into the exhaust gas quickly reacts with the mercury in the exhaust gas, fixing the mercury from the exhaust gas to the powder side. Reactant and neutralizing agent with fixed mercury and acid gas and unreacted reactant and neutralizing agent.
燃焼ばいじんは後方に位置するバグフィルタ１１上に捕
集され、逆洗操作によって払い落されて糸外へ排出され
る。未反応の水銀反応剤及び酸性ガス中和剤が一緒にバ
グフィルタ１１上にケーキ層を形成するので、その層を
排ガスが通過するとき更に水銀及び酸性ガスと反応剤及
び中和剤との固気反応が進行し、各々の除去率が高まる
。水銀及び酸性ガスが取り除かれた燃焼ガスは、排気フ
ァン１２を経由して煙突１５よす排出される。バグフィ
ルタ１１から捕集灰１４を適宜排出する。Combustion dust is collected on the bag filter 11 located at the rear, is brushed off by a backwashing operation, and is discharged to the outside of the thread. The unreacted mercury reactant and the acidic gas neutralizer together form a cake layer on the bag filter 11, so when the exhaust gas passes through that layer, the mercury and acidic gas are further solidified with the reactant and the neutralizer. The gas reaction progresses and the removal rate of each increases. The combustion gas from which mercury and acid gases have been removed is exhausted to the chimney 15 via an exhaust fan 12. The collected ash 14 is discharged from the bag filter 11 as appropriate.
第２図にバグフィルタろ布表面の粉体堆積層の概念図を
示す。FIG. 2 shows a conceptual diagram of the powder deposit layer on the surface of the bag filter cloth.
排ガス中に噴射した水銀反応剤、酸性ガス中和剤９艮応
助剤及び燃焼ばいじんは第２図に示すように、ろ布１５
表面に逐次堆積していく。As shown in FIG.
It gradually accumulates on the surface.
図中Ｇ、は排ガス、１６は反応助剤からなるプレコート
層、１７は堆積層、１８は水銀反応剤、１９は酸性ガス
中和剤、２０は反応助剤の存在を示す。In the figure, G indicates exhaust gas, 16 indicates a precoat layer made of a reaction aid, 17 indicates a deposited layer, 18 indicates a mercury reactant, 19 indicates an acid gas neutralizer, and 20 indicates the presence of a reaction aid.
ここで酸性ガス中和剤としては、消石灰、炭酸カルシウ
ム、酸化カルシウム、水酸化マグネシウム、炭酸マグネ
シウム、酸化マグネシウムなどのアルカリ中和剤を用い
ることができる。Here, as the acidic gas neutralizing agent, an alkali neutralizing agent such as slaked lime, calcium carbonate, calcium oxide, magnesium hydroxide, magnesium carbonate, and magnesium oxide can be used.
水銀反応剤としては、Ｓ、 Ｆｅｄ、 Ｚｎ８． Ｃａ
ｂ、Ｃｕｅを用いることができる。Examples of mercury reactants include S, Fed, Zn8. Ca
b.Cue can be used.
反応助剤としては、ゼオライト、アルミナ。Zeolite and alumina are used as reaction aids.
ケイソウ土、パーライト、活性白土、カオリン。Diatomaceous earth, perlite, activated clay, kaolin.
長石等の粉末の中から選ばれた１種もしくは２種以上の
混合粉末を使用することができる。（特願昭５８−１９
６１２８）
〔実施例〕
都市ごみ焼却炉から排出される水銀とＨＣｊの除去を下
記条件にて行なった。One type or a mixed powder of two or more types selected from powders such as feldspar can be used. (Special application 1986-19
6128) [Example] Mercury and HCj discharged from a municipal waste incinerator were removed under the following conditions.
排ガスの性状：焼却量 ： １５０Ｔ／日排ガス量
： ５０，０００ Ｎｍ’／ｈＨｇ濃度 ： Ｑ
、５ｘｑ／Ｎｍ”
ＨＣｊ ＆ ： ７００ ｐｐｍ
ガス温度 ： ２００〜２３０℃
処理条件：反応塔へ５チ消石灰スラリーを１．５Ｔ／ｈ
噴霧した。Exhaust gas properties: Incineration amount: 150T/day Exhaust gas amount: 50,000 Nm'/hHg concentration: Q
, 5xq/Nm" HCj &: 700 ppm Gas temperature: 200-230°C Processing conditions: 5 times slaked lime slurry into the reaction tower at 1.5T/h
Sprayed.
つぎに、後流の排ガスダクト内へ
反応助剤と水銀反応剤の混合粉体を
５ｏｋｇ／ｈ（混合比：反応助剤／水銀反応剤（重量比
）１〜５０）吹き込んだ。Next, a mixed powder of a reaction aid and a mercury reactant was blown into the downstream exhaust gas duct at 5 kg/h (mixing ratio: reaction aid/mercury reactant (weight ratio) 1 to 50).
反応助剤としてはパーライト、水銀反 応剤としては粒度２００〜３０ロメツ シユのＺｎ８粉末を使用した。Perlite and mercury reaction aids are used as reaction aids. As a reaction agent, particle size is 200-30 Zn8 powder of Shuyu was used.
結果二上記試験の結果、排ガス中の水銀は７６チ、 Ｈ
Ｃｌは９８％を除去することができた。Result 2 As a result of the above test, the amount of mercury in the exhaust gas was 76%.
98% of Cl could be removed.
本発明は上記構成を採用することによ）、燃焼排ガス中
の水銀と酸性ガスを乾式で且つ同時に処理することがで
き、集じんと反応促進を兼ねたバグフィルタ−を用いる
ことによって、高い除去率を達成でき、水銀反応剤と反
応助剤を煙道中に混合噴射することによって、設備の簡
素化と、水銀反応剤の排ガス中への噴射時の分散性を高
めることができた。By adopting the above configuration, the present invention can dryly and simultaneously process mercury and acid gases in combustion exhaust gas, and can achieve high removal by using a bag filter that also serves as dust collection and reaction promotion. By mixing and injecting the mercury reactant and reaction aid into the flue, we were able to simplify the equipment and improve the dispersibility of the mercury reactant when it was injected into the exhaust gas.
第１図は本発明に係る水銀と酸性ガスの除去方法を実施
する装置の構成図、第２図はバグフィルタ−ろ布の表面
堆積層概念図である。
復代理人 内 １） 明
復代理人 萩 原 亮 −
復代理人 安 西 篤 夫FIG. 1 is a block diagram of an apparatus for carrying out the method for removing mercury and acidic gases according to the present invention, and FIG. 2 is a conceptual diagram of a layer deposited on the surface of a bag filter cloth. Sub-Agents 1) Meifuku Agent Ryo Hagiwara − Sub-Agent Atsuo Anzai
Claims (1)
に、スラリー状の酸性ガス中和剤を噴霧して排ガスと十
分に接触した後、該排ガス中に水銀反応剤と反応助剤と
の混合粉末を噴射してガスと粉末との接触を行ない、さ
らに、その後方にバグフイルタを設けて排ガス中の酸性
ガス中和剤、水銀反応剤、反応助剤、ばいじん等を捕集
するとともに、該捕集灰の層を排ガスが通過するように
したことを特徴とする排ガス中の酸性ガス、水銀及び水
銀化合物の除去方法。After spraying a slurry acidic gas neutralizer into combustion exhaust gas containing acid gas, mercury, mercury compounds, etc. and making sufficient contact with the exhaust gas, a mercury reactant and a reaction aid are mixed in the exhaust gas. The powder is injected to bring the gas into contact with the powder, and a bag filter is installed behind it to collect acid gas neutralizers, mercury reactants, reaction aids, dust, etc. in the exhaust gas, and A method for removing acid gas, mercury, and mercury compounds in exhaust gas, characterized in that the exhaust gas passes through a layer of ash collection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61088231A JPH0661425B2 (en) | 1986-04-18 | 1986-04-18 | Method for removing acid gas and mercury in combustion exhaust gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61088231A JPH0661425B2 (en) | 1986-04-18 | 1986-04-18 | Method for removing acid gas and mercury in combustion exhaust gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62247826A true JPS62247826A (en) | 1987-10-28 |
| JPH0661425B2 JPH0661425B2 (en) | 1994-08-17 |
Family
ID=13937089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61088231A Expired - Lifetime JPH0661425B2 (en) | 1986-04-18 | 1986-04-18 | Method for removing acid gas and mercury in combustion exhaust gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0661425B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5618508A (en) * | 1987-05-18 | 1997-04-08 | Ftu Gmbh Technische Entwicklung Und Forschung Im Umweltschutz | Process for purifying exhaust gas using modified calcium hydroxide |
| JP2006205128A (en) * | 2005-01-31 | 2006-08-10 | Babcock Hitachi Kk | Removal apparatus of trace harmful substance in exhaust gas and its operation method |
| JP2008030017A (en) * | 2006-07-26 | 2008-02-14 | Babcock Hitachi Kk | Removal apparatus of trace harmful substance in exhaust gas and its operation method |
| US8202482B2 (en) | 2006-07-26 | 2012-06-19 | Babcock-Hitachi Kabushiki Kaisha | Apparatus for removing of trace of toxic substance from exhaust gas and method of operating the same |
| JP2015515924A (en) * | 2012-05-01 | 2015-06-04 | フューエル テック インコーポレーテッド | Dry method, apparatus, composition and system for reducing mercury, sulfur oxides and HCl |
| JP2018066523A (en) * | 2016-10-21 | 2018-04-26 | 日立造船株式会社 | Drug dosing device and treatment equipment of flue gas |
| JP2018079469A (en) * | 2010-08-18 | 2018-05-24 | マーキュテック エルエルシーＭｅｒｃｕｔｅｋ Ｌｌｃ | Cement kiln dust treatment system and method |
| CN118059841A (en) * | 2024-04-25 | 2024-05-24 | 中南大学 | Molecular sieve loaded nano iron sulfide, preparation method thereof and application thereof in mercury removal |
-
1986
- 1986-04-18 JP JP61088231A patent/JPH0661425B2/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5618508A (en) * | 1987-05-18 | 1997-04-08 | Ftu Gmbh Technische Entwicklung Und Forschung Im Umweltschutz | Process for purifying exhaust gas using modified calcium hydroxide |
| JP2006205128A (en) * | 2005-01-31 | 2006-08-10 | Babcock Hitachi Kk | Removal apparatus of trace harmful substance in exhaust gas and its operation method |
| JP2008030017A (en) * | 2006-07-26 | 2008-02-14 | Babcock Hitachi Kk | Removal apparatus of trace harmful substance in exhaust gas and its operation method |
| US8202482B2 (en) | 2006-07-26 | 2012-06-19 | Babcock-Hitachi Kabushiki Kaisha | Apparatus for removing of trace of toxic substance from exhaust gas and method of operating the same |
| JP2018079469A (en) * | 2010-08-18 | 2018-05-24 | マーキュテック エルエルシーＭｅｒｃｕｔｅｋ Ｌｌｃ | Cement kiln dust treatment system and method |
| JP2015515924A (en) * | 2012-05-01 | 2015-06-04 | フューエル テック インコーポレーテッド | Dry method, apparatus, composition and system for reducing mercury, sulfur oxides and HCl |
| JP2018066523A (en) * | 2016-10-21 | 2018-04-26 | 日立造船株式会社 | Drug dosing device and treatment equipment of flue gas |
| CN118059841A (en) * | 2024-04-25 | 2024-05-24 | 中南大学 | Molecular sieve loaded nano iron sulfide, preparation method thereof and application thereof in mercury removal |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0661425B2 (en) | 1994-08-17 |
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