JP2003093837A - Exhaust gas treatment agent - Google Patents
Exhaust gas treatment agentInfo
- Publication number
- JP2003093837A JP2003093837A JP2001292973A JP2001292973A JP2003093837A JP 2003093837 A JP2003093837 A JP 2003093837A JP 2001292973 A JP2001292973 A JP 2001292973A JP 2001292973 A JP2001292973 A JP 2001292973A JP 2003093837 A JP2003093837 A JP 2003093837A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- calcium hydroxide
- gas treatment
- treating agent
- powder
- 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.)
- Pending
Links
Landscapes
- Treating Waste Gases (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、水酸化カルシウム
を含む排ガス処理剤に関し、特に塩化水素等の酸性物質
との反応性が高く、しかもバグフィルターのろ布への悪
影響等の処理装置への負担を軽減した排ガス処理剤に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exhaust gas treating agent containing calcium hydroxide, and particularly to a treating apparatus which has a high reactivity with an acidic substance such as hydrogen chloride and has a bad effect on a filter cloth of a bag filter. The present invention relates to an exhaust gas treating agent with reduced burden.
【０００２】[0002]
【従来の技術】ごみ焼却炉、火力発電所その他のボイラ
ー等から生じる廃ガスは、一般に硫黄酸化物、塩化水素
等の酸性ガス成分を多量に含有するため、通常はこれを
廃ガス煙道中において塩基性アルカリ土類金属化合物粉
体と接触させて硫酸塩や塩化物の粉体とし、これをバグ
フィルター（bag filter）や電気集塵器で分離した後に
ガス分を大気中に放出している。塩基性アルカリ土類金
属化合物粉体としては、例えば水酸化カルシウムが使用
される。2. Description of the Related Art Waste gas generated from refuse incinerators, thermal power plants and other boilers generally contains large amounts of acidic gas components such as sulfur oxides and hydrogen chloride. Sulfate or chloride powder is brought into contact with the basic alkaline earth metal compound powder, which is separated with a bag filter or electrostatic precipitator and then the gas is released into the atmosphere. . As the basic alkaline earth metal compound powder, for example, calcium hydroxide is used.
【０００３】従来、排ガス処理用に使用されている水酸
化カルシウムは、ＢＥＴ比表面積20m2/g程度のものであ
ったが、一般に排ガスとの反応性は表面積が大きいほど
よいことから、近年、表面積の大きい水酸化カルシウム
が使用されるようになっている（特公平6-8194号公報な
ど）。Conventionally, calcium hydroxide used for treating exhaust gas has a BET specific surface area of about 20 m 2 / g, but in general, the greater the surface area, the better the reactivity with exhaust gas. Calcium hydroxide having a large surface area has come to be used (Japanese Patent Publication No. 6-8194, etc.).
【０００４】しかしながら、表面積の大きい水酸化カル
シウムを用いたことにより新たな問題が生じた。即ち、
表面積が20m2/g程度の場合には、水酸化カルシウムは全
部が排ガスとの反応に消費されることなく、一部水酸化
カルシウムのまま残っているため、この残っている水酸
化カルシウムが反応によって生じた塩化カルシウムを取
り込み、一体的にバグフィルターの附着物として除去す
ることができた。これに対し、ＢＥＴ比表面積で35m2/g
以上の水酸化カルシウムを用いた場合には、水酸化カル
シウム粒子の殆どが、酸性ガスによって消費されてしま
うため、生成した塩化カルシウムがそのままバグフィル
ターに附着することになり、温度条件によっては潮解し
バグフィルターのろ布を覆ってしまい、バグフィルター
のフィルター機能を低下させ、また簡単にろ布から除去
できないなどの問題が生じている。However, the use of calcium hydroxide having a large surface area causes a new problem. That is,
When the surface area is about 20 m 2 / g, all of the calcium hydroxide is not consumed for the reaction with the exhaust gas, and part of it remains as calcium hydroxide. It was possible to take in the calcium chloride generated by the method and remove it as an attachment to the bag filter. On the other hand, the BET specific surface area is 35 m 2 / g
When the above calcium hydroxide is used, most of the calcium hydroxide particles are consumed by the acid gas, so the generated calcium chloride adheres to the bag filter as it is, and depending on the temperature conditions it may deliquesce. There are problems that the filter cloth of the bag filter is covered, the filter function of the bag filter is deteriorated, and it cannot be easily removed from the filter cloth.
【０００５】一方、従来の比較的表面積の小さい水酸化
カルシウムを用いた排ガス処理技術において、反応塔内
での塩化水素の中和吸収を促進させるために、水酸化カ
ルシウムで反応させた後、さらにゼオライト、珪藻土等
の反応助剤粉体を反応塔内に吹き込む技術もある（特公
平3-26095号）。On the other hand, in the conventional exhaust gas treatment technology using calcium hydroxide having a relatively small surface area, in order to promote neutralization and absorption of hydrogen chloride in the reaction tower, after the reaction with calcium hydroxide, There is also a technology for blowing reaction aid powder such as zeolite and diatomaceous earth into the reaction tower (Japanese Patent Publication No. 3-26095).
【０００６】しかし、この排ガス処理方法では、水酸化
カルシウムと反応助剤の二系統の供給系を必要とし、し
かも高表面積の水酸化カルシウムを用いた場合には、反
応生成物である塩化カルシウムの潮解によるバグフィル
ターへの影響を充分に排除することができない。However, this exhaust gas treatment method requires two systems of supply system of calcium hydroxide and a reaction aid, and when calcium hydroxide having a high surface area is used, the reaction product calcium chloride The influence of deliquescence on the bug filter cannot be fully eliminated.
【０００７】そこで本発明は、極めて高い排ガス処理能
力を有し、しかも反応生成物が排ガス処理系、特にバグ
フィルターに与える影響を最小限に抑えることが可能な
排ガス処理剤を提供することを目的とする。Therefore, the object of the present invention is to provide an exhaust gas treating agent having an extremely high exhaust gas treating ability and capable of minimizing the influence of the reaction products on the exhaust gas treating system, especially on the bag filter. And
【０００８】[0008]
【課題を解決するための手段】上記目的を達成する本発
明の排ガス処理剤は、ＢＥＴ比表面積35〜60ｍ2/ｇの水
酸化カルシウムと、無機酸化物を含む鉱物資源の粉体と
を含むものである。The exhaust gas treating agent of the present invention which achieves the above object contains calcium hydroxide having a BET specific surface area of 35 to 60 m 2 / g and powder of a mineral resource containing an inorganic oxide. It is a waste.
【０００９】このような高表面積の水酸化カルシウムと
鉱物資源粉体とを予め均一に混合した混合粉体としてお
くことにより、水酸化カルシウムとの反応によって生成
した塩化カルシウム等の反応生成物は、水酸化カルシウ
ム粒子を取り囲むように存在する鉱物資源粒子によって
効率よく吸着され、潮解が抑制される。反応しないで残
った少量の水酸化カルシウムと反応生成物を吸着した鉱
物資源粒子は、バグフィルターのろ布に附着するが、潮
解によるべとつきが抑制されているので、ろ布のフィル
ター効果を妨げることなく、また逆洗浄等によって簡単
にろ布から除去することができる。The reaction product such as calcium chloride produced by the reaction with calcium hydroxide is prepared by previously mixing the high surface area calcium hydroxide and the mineral resource powder in advance as a mixed powder. The mineral resource particles existing so as to surround the calcium hydroxide particles are efficiently adsorbed and the deliquescent is suppressed. Mineral resource particles that have adsorbed a small amount of calcium hydroxide and the reaction product remaining without reaction adhere to the filter cloth of the bag filter, but the stickiness due to deliquescence is suppressed, so the filter effect of the filter cloth is hindered. Moreover, it can be easily removed from the filter cloth by back washing or the like.
【００１０】[0010]
【発明の実施の形態】以下、本発明の排ガス処理剤につ
いて、さらに詳細に説明する。本発明において用いられ
る水酸化カルシウムとしては、例えば酸化カルシウムを
消化することにより調製した水酸化カルシウムを用いる
ことができる。酸化カルシウムは特に制限されず、石灰
石を仮焼したものが一般的であるが、好ましくは乾式粉
砕されたもの、例えばケージミル、バイブロミル、ボー
ルミルなどで粉砕されたものが用いられる。消化方法に
ついては、表面積ができるだけ大きい水酸化カルシウム
を製造することが可能な方法を採用することが好まし
い。このような方法として、例えば、アルコールなどの
消化反応を遅延させる有機溶媒の存在下に消化する方法
などが挙げられる。このような方法で消化することによ
り、ＢＥＴ比表面積35m2/g以上の水酸化カルシウムを得
ることができる。BEST MODE FOR CARRYING OUT THE INVENTION The exhaust gas treating agent of the present invention will be described in more detail below. As the calcium hydroxide used in the present invention, for example, calcium hydroxide prepared by digesting calcium oxide can be used. The calcium oxide is not particularly limited and is generally calcined limestone, but preferably dry crushed one, for example, crushed by cage mill, vibro mill, ball mill or the like is used. As a digestion method, it is preferable to adopt a method capable of producing calcium hydroxide having a surface area as large as possible. Examples of such a method include a method of digesting in the presence of an organic solvent that delays the digestive reaction such as alcohol. Digestion by such a method makes it possible to obtain calcium hydroxide having a BET specific surface area of 35 m 2 / g or more.
【００１１】水酸化カルシウムは平均粒子径2μｍ〜10
μｍのものが好ましい。またその細孔容積が、0.15〜0.
25cm3/gのものが好ましい。このような細孔容積の水酸
化カルシウムを用いることにより、酸性ガスに対する反
応性を高めることができる。Calcium hydroxide has an average particle size of 2 μm to 10
It is preferably μm. The pore volume is 0.15 to 0.
25 cm 3 / g is preferable. By using calcium hydroxide having such a pore volume, the reactivity with respect to the acidic gas can be enhanced.
【００１２】本発明の排ガス処理剤で用いる鉱物資源と
しては、それ自体は潮解性がなく、また吸着性に優れ、
フィルターのろ布に附着した場合にもフィルター機能を
妨げない通気性を有する材料を用いる。このような材料
として、珪藻土、パーライト、ゼオライト、活性白土、
カオリン、長石、石英等の無機酸化物を含む鉱物資源が
挙げられる。これらは、１種または２種以上を混合して
用いることができ、特に特性の異なる２種以上の鉱物資
源を併用することが好ましい。例えば、珪藻土とパーラ
イトを重量比で95：5〜75：25の範囲で用いることがで
きる。As a mineral resource used in the exhaust gas treating agent of the present invention, it has no deliquescent property per se and is excellent in adsorptivity.
Use a material that does not interfere with the filter function even when attached to the filter cloth. Such materials include diatomaceous earth, perlite, zeolite, activated clay,
Mineral resources including inorganic oxides such as kaolin, feldspar, and quartz are listed. These can be used alone or in combination of two or more, and it is particularly preferable to use two or more kinds of mineral resources having different characteristics together. For example, diatomaceous earth and perlite can be used in a weight ratio of 95: 5 to 75:25.
【００１３】これら鉱物資源は粉砕して、粒子径200μ
ｍ以下の粉体としたものを、前述した高表面積の水酸化
カルシウムとよく混合し、排ガス処理剤とする。混合割
合は、重量比で90：10〜70：30の範囲で、含むものであ
る。水酸化カルシウムの量が90重量％を超えると、鉱物
資源粉体添加の効果が充分に得られない。また鉱物資源
粉体の量が30重量％を超えると、フィルターの堆積物が
多くなり、頻繁なフィルター清掃が必要となるほか、反
応に必要な水酸化カルシウム量が不足し、充分な排ガス
処理能力を得ることができない場合がある。These mineral resources are crushed to a particle size of 200 μm.
A powder having a particle size of m or less is mixed well with the above-mentioned high surface area calcium hydroxide to form an exhaust gas treating agent. The mixing ratio is included in the range of 90:10 to 70:30 by weight. If the amount of calcium hydroxide exceeds 90% by weight, the effect of adding the mineral resource powder cannot be sufficiently obtained. In addition, if the amount of the mineral resource powder exceeds 30% by weight, the filter deposits increase, and frequent filter cleaning is required, and the amount of calcium hydroxide required for the reaction is insufficient, resulting in sufficient exhaust gas treatment capacity. May not be able to get.
【００１４】混合方法は、特に限定されないが、攪拌混
合やエアー混合など乾式混合法を用いる。The mixing method is not particularly limited, but a dry mixing method such as stirring mixing or air mixing is used.
【００１５】本発明の排ガス処理剤は、ごみ焼却炉、火
力発電所その他のボイラー等から排出される排ガスの排
ガス処理剤として利用される。The exhaust gas treating agent of the present invention is used as an exhaust gas treating agent for exhaust gas discharged from refuse incinerators, thermal power plants and other boilers.
【００１６】適用方法は、特に限定されないが、例えば
図１に示すようなバグフィルター11を備えた反応塔10内
に排ガス処理剤の供給系12から所定の供給量で供給され
る。供給量は、排ガスに含まれる酸化物濃度によっても
異なり、酸化物濃度に対し処理剤供給量が多すぎるとフ
ィルターへの堆積量が増加し、フィルター清掃を頻繁に
しなければならなくなるので、例えば、フィルター11か
ら排出される浄化ガスの塩化水素濃度を監視し、その値
が目標値(例えば20ppm以下)となるようにフィードバッ
ク制御することにより制御することができる。The application method is not particularly limited, but for example, it is supplied from the supply system 12 of the exhaust gas treating agent at a predetermined supply amount into the reaction tower 10 provided with the bag filter 11 as shown in FIG. The supply amount also depends on the oxide concentration contained in the exhaust gas, and if the supply amount of the treating agent is too large with respect to the oxide concentration, the deposition amount on the filter increases and the filter must be frequently cleaned. It can be controlled by monitoring the hydrogen chloride concentration of the purified gas discharged from the filter 11 and performing feedback control so that the value becomes a target value (for example, 20 ppm or less).
【００１７】本発明の排ガス処理剤は、水酸化カルシウ
ムとして高表面積のものを用いているので、極めて効率
よく排ガス処理を行うことができ、しかも反応に使われ
ずに残る水酸化カルシウム量を低減できる。また本発明
の排ガス処理剤は、反応生成物である塩化カルシウムを
鉱物資源粉体に吸着させることができるので、塩化カル
シウムが直接バグフィルターの堆積物となって潮解し、
フィルターの透過性を阻害したり、フィルターからの除
去が困難となるなどの影響をなくすことができる。Since the exhaust gas treating agent of the present invention uses calcium hydroxide having a high surface area, the exhaust gas can be treated extremely efficiently, and the amount of calcium hydroxide remaining unused in the reaction can be reduced. . Further, the exhaust gas treating agent of the present invention can adsorb the reaction product calcium chloride to the mineral resource powder, so that calcium chloride directly becomes a deposit of the bag filter and deliquesces,
It is possible to eliminate influences such as impeding the permeability of the filter and making removal from the filter difficult.
【００１８】さらに本発明の排ガス処理剤は、一系統の
処理剤供給系で効率よく排ガス処理を行うことができ
る。Further, the exhaust gas treating agent of the present invention can efficiently treat the exhaust gas with a single treating agent supply system.
【００１９】[0019]
【実施例】以下、本発明の実施例を説明する。なお、以
下の実施例において水酸化カルシウム粉体の物性は以下
のようにして求めた。
(1)ＢＥＴ比表面積：マイクロメリティックス社製Flow
Sorb II 2300を用いて測定した。
(2)細孔容積：マイクロメリティックス社製の細孔分布
測定装置ASAP2010を用いて測定した。EXAMPLES Examples of the present invention will be described below. In the following examples, the physical properties of calcium hydroxide powder were obtained as follows. (1) BET specific surface area: Flow manufactured by Micromeritics
It was measured using Sorb II 2300. (2) Pore volume: Measured using a pore distribution measuring device ASAP2010 manufactured by Micromeritics.
【００２０】[実施例]ＢＥＴ比表面積45.1m2/g、細孔容
積0.213cm3/gの水酸化カルシウム、珪藻土およびパーラ
イトを、それぞれ85重量、13.5重量％、1.5重量％の割
合で均一に混合したものを排ガス処理剤とし、処理能力
120ｔ/日のごみ焼却炉の排ガス煙道中に吹き込み、排ガ
ス処理に用いた。この煙道の端部に設置したバグフィル
ターから排出されるガス中のＨＣｌ濃度を監視し、排ガ
ス処理剤の供給量をＨＣｌ濃度20ppmとなるように制御
した。このときのバグフィルター差圧を測定したところ
140mmH2Oであった。[Examples] Calcium hydroxide, diatomaceous earth and perlite having a BET specific surface area of 45.1 m 2 / g and a pore volume of 0.213 cm 3 / g were uniformly mixed in proportions of 85% by weight, 13.5% by weight and 1.5% by weight, respectively. The mixture is used as an exhaust gas treatment agent and the treatment capacity is
It was blown into the exhaust gas flue of a 120 t / day garbage incinerator and used for exhaust gas treatment. The HCl concentration in the gas discharged from the bag filter installed at the end of the flue was monitored, and the supply amount of the exhaust gas treating agent was controlled so that the HCl concentration was 20 ppm. When the bag filter differential pressure at this time was measured
It was 140 mmH 2 O.
【００２１】[比較例１]実施例と同じ水酸化カルシウム
のみを排ガス処理剤に用い、実施例と同じごみ焼却炉の
排ガス処理に用いた。この排ガス処理剤の供給量を、バ
グフィルターから排出されるガス中のＨＣｌ濃度が20pp
mとなるように制御したときのバグフィルター差圧を測
定したところ180mmH2Oと、非常に高くなってしまった。Comparative Example 1 Only the same calcium hydroxide as in the example was used as the exhaust gas treating agent, and used as the exhaust gas treatment in the same refuse incinerator as in the example. The supply amount of this exhaust gas treatment agent is adjusted so that the HCl concentration in the gas discharged from the bag filter is 20 pp
When the differential pressure of the bag filter when controlled to be m was measured, it was 180 mmH 2 O, which was extremely high.
【００２２】[比較例２]実施例と同じ水酸化カルシウム
を排ガス処理剤として用いると共に、別に珪藻土および
パーライトを重量比で9：1に混合した粉体を用意し、排
ガス処理剤と粉体とを別々に実施例と同じごみ焼却炉の
排ガス煙道中に吹き込んだ。排ガス処理剤と粉体との使
用量は、それぞれ85重量、15重量％となるようにして、
バグフィルターから排出されるガス中のＨＣｌ濃度が20
ppmとなるように制御したところ、バグフィルター差圧
は160mmH2Oであった。[Comparative Example 2] The same calcium hydroxide as that used in the example was used as an exhaust gas treating agent, and a powder was prepared in which diatomaceous earth and perlite were mixed at a weight ratio of 9: 1. Were separately blown into the exhaust gas flue of the same refuse incinerator as in the example. The amounts of the exhaust gas treating agent and the powder used are 85% by weight and 15% by weight, respectively,
The HCl concentration in the gas discharged from the bag filter is 20
When controlled to be ppm, the bag filter differential pressure was 160 mmH 2 O.
【００２３】以上の実施例および比較例の結果から、本
発明の排ガス処理剤では、バグフィルター差圧を低く保
ったまま、即ち良好な透過性を確保した状態で排ガス処
理を行うことができることがわかる。From the results of the above Examples and Comparative Examples, the exhaust gas treating agent of the present invention can be used for exhaust gas treatment while keeping the bag filter differential pressure low, that is, in the state where good permeability is secured. Recognize.
【発明の効果】本発明によれば、高表面積の水酸化カル
シウムと特定の鉱物資源粉体を均一に混合して排ガス処
理剤とすることにより、排ガス中の酸性成分との反応性
に優れ、また反応生成物によるバグフィルターへの悪影
響を排除した排ガス処理剤を提供することができる。EFFECTS OF THE INVENTION According to the present invention, by uniformly mixing high surface area calcium hydroxide and a specific mineral resource powder as an exhaust gas treating agent, the reactivity with acidic components in the exhaust gas is excellent, Further, it is possible to provide an exhaust gas treating agent in which the adverse effect of the reaction product on the bag filter is eliminated.
【図１】排ガス処理装置の一例を示す全体図。FIG. 1 is an overall view showing an example of an exhaust gas treatment device.
【符号の説明】 10・・・反応塔 11・・・バグフィルター 12・・・排ガス処理剤供給系[Explanation of symbols] 10 ... Reaction tower 11 ... Bag filter 12 ... Exhaust gas treatment agent supply system
───────────────────────────────────────────────────── フロントページの続き (72)発明者 山下 一夫 東京都渋谷区千駄ヶ谷５−32−７ 奥多摩 工業株式会社内 Ｆターム(参考） 4D002 AA19 AB01 AC10 BA03 DA05 DA12 DA45 DA47 EA07 GA01 GB08 GB12 4G066 AA17B AA22D AA61D AA64D AA66D AA67D AA70D BA09 BA20 BA25 BA26 CA07 CA31 DA02 EA11 FA02 FA37 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Kazuo Yamashita 5-32-7 Sendagaya, Shibuya-ku, Tokyo Okutama Industry Co., Ltd. F-term (reference) 4D002 AA19 AB01 AC10 BA03 DA05 DA12 DA45 DA47 EA07 GA01 GB08 GB12 4G066 AA17B AA22D AA61D AA64D AA66D AA67D AA70D BA09 BA20 BA25 BA26 CA07 CA31 DA02 EA11 FA02 FA37
Claims (5)
ルシウムと、無機酸化物を含む鉱物資源の粉体とを含む
排ガス処理剤。1. An exhaust gas treating agent containing calcium hydroxide having a BET specific surface area of 35 to 60 m 2 / g and powder of a mineral resource containing an inorganic oxide.
ライト、活性白土、カオリン、長石及び石英から選択さ
れる１種または２種以上である請求項１記載の排ガス処
理剤。2. The exhaust gas treating agent according to claim 1, wherein the mineral resource is one or more selected from diatomaceous earth, perlite, zeolite, activated clay, kaolin, feldspar and quartz.
合割合が、重量比で90：10〜70：30の範囲である請求項
１又は２記載の排ガス処理剤。3. The exhaust gas treating agent according to claim 1, wherein the mixing ratio of the calcium hydroxide and the mineral resource powder is in the range of 90:10 to 70:30 by weight.
5〜75：25の割合で含む混合物である請求項１ないし３
いずれか1項記載の排ガス処理剤。4. The mineral resources are diatomaceous earth and perlite 95:
5. A mixture containing 5 to 75:25 in a ratio of 1 to 3.
The exhaust gas treating agent according to any one of claims 1.
15〜0.25cm3/g である請求項１ないし４いずれか１項記
載の排ガス処理剤。5. The pore volume of the calcium hydroxide is 0.
The exhaust gas treating agent according to any one of claims 1 to 4, which has a content of 15 to 0.25 cm 3 / g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001292973A JP2003093837A (en) | 2001-09-26 | 2001-09-26 | Exhaust gas treatment agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001292973A JP2003093837A (en) | 2001-09-26 | 2001-09-26 | Exhaust gas treatment agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003093837A true JP2003093837A (en) | 2003-04-02 |
Family
ID=19114846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001292973A Pending JP2003093837A (en) | 2001-09-26 | 2001-09-26 | Exhaust gas treatment agent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003093837A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010105883A (en) * | 2008-10-31 | 2010-05-13 | Okutama Kogyo Co Ltd | Deliquescence controlling agent, exhaust gas treating agent and method for treating exhaust gas |
| JP2011116573A (en) * | 2009-12-01 | 2011-06-16 | Kotegawa Sangyo Kk | Slaked lime, method for producing the same, and acidic gas removing agent |
| JP2014140812A (en) * | 2013-01-23 | 2014-08-07 | Yoshizawa Lime Industry | Exhaust gas treatment agent and method of producing the same |
| JP2015085303A (en) * | 2013-11-01 | 2015-05-07 | 栗田工業株式会社 | Treatment method of acidic exhaust gas and exhaust gas treatment agent |
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| JPS6090028A (en) * | 1983-10-21 | 1985-05-21 | Mitsubishi Heavy Ind Ltd | Removing method of hydrogen chloride |
| JPH0490816A (en) * | 1990-08-07 | 1992-03-24 | Kobe Steel Ltd | Method and apparatus for treating exhaust gas of incinerator |
| JPH0999234A (en) * | 1995-10-06 | 1997-04-15 | Kanegafuchi Chem Ind Co Ltd | Treating agent for waste gas and soot and dust and its treatment |
| JPH10165752A (en) * | 1996-12-16 | 1998-06-23 | Nippon Steel Corp | Exhaust gas treatment process for waste disposal facility |
| JPH1133343A (en) * | 1997-07-24 | 1999-02-09 | Kanegafuchi Chem Ind Co Ltd | Blow agent for incinerator flue and flue gas treatment method |
| JP2000063116A (en) * | 1998-08-14 | 2000-02-29 | Okutama Kogyo Co Ltd | New calcium hydroxide, its production and acidic gas- treating agent including the same as effective component |
| JP2000246051A (en) * | 1999-03-03 | 2000-09-12 | Nkk Corp | Method and apparatus for treating exhaust gas |
| JP2000246058A (en) * | 1999-03-03 | 2000-09-12 | Nkk Corp | Method and apparatus for treating exhaust gas |
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2001
- 2001-09-26 JP JP2001292973A patent/JP2003093837A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6090028A (en) * | 1983-10-21 | 1985-05-21 | Mitsubishi Heavy Ind Ltd | Removing method of hydrogen chloride |
| JPH0490816A (en) * | 1990-08-07 | 1992-03-24 | Kobe Steel Ltd | Method and apparatus for treating exhaust gas of incinerator |
| JPH0999234A (en) * | 1995-10-06 | 1997-04-15 | Kanegafuchi Chem Ind Co Ltd | Treating agent for waste gas and soot and dust and its treatment |
| JPH10165752A (en) * | 1996-12-16 | 1998-06-23 | Nippon Steel Corp | Exhaust gas treatment process for waste disposal facility |
| JPH1133343A (en) * | 1997-07-24 | 1999-02-09 | Kanegafuchi Chem Ind Co Ltd | Blow agent for incinerator flue and flue gas treatment method |
| JP2000063116A (en) * | 1998-08-14 | 2000-02-29 | Okutama Kogyo Co Ltd | New calcium hydroxide, its production and acidic gas- treating agent including the same as effective component |
| JP2000246051A (en) * | 1999-03-03 | 2000-09-12 | Nkk Corp | Method and apparatus for treating exhaust gas |
| JP2000246058A (en) * | 1999-03-03 | 2000-09-12 | Nkk Corp | Method and apparatus for treating exhaust gas |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010105883A (en) * | 2008-10-31 | 2010-05-13 | Okutama Kogyo Co Ltd | Deliquescence controlling agent, exhaust gas treating agent and method for treating exhaust gas |
| JP2011116573A (en) * | 2009-12-01 | 2011-06-16 | Kotegawa Sangyo Kk | Slaked lime, method for producing the same, and acidic gas removing agent |
| JP2014140812A (en) * | 2013-01-23 | 2014-08-07 | Yoshizawa Lime Industry | Exhaust gas treatment agent and method of producing the same |
| JP2015085303A (en) * | 2013-11-01 | 2015-05-07 | 栗田工業株式会社 | Treatment method of acidic exhaust gas and exhaust gas treatment agent |
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