JP2000203823A - Production of activated carbon - Google Patents
Production of activated carbonInfo
- Publication number
- JP2000203823A JP2000203823A JP11000568A JP56899A JP2000203823A JP 2000203823 A JP2000203823 A JP 2000203823A JP 11000568 A JP11000568 A JP 11000568A JP 56899 A JP56899 A JP 56899A JP 2000203823 A JP2000203823 A JP 2000203823A
- Authority
- JP
- Japan
- Prior art keywords
- activated carbon
- gas
- carbon material
- atmosphere
- groups
- 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.)
- Withdrawn
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、活性炭に関し、特
に、水中に存在する微量のクロロホルム、ジクロロブロ
モメタン、クロロジブロモメタン、ブロモホルム等（以
下、「トリハロメタン類」という。）を吸着する活性炭
に関するものである。The present invention relates to activated carbon, and more particularly to activated carbon that adsorbs trace amounts of chloroform, dichlorobromomethane, chlorodibromomethane, bromoform and the like (hereinafter referred to as "trihalomethanes") present in water. It is.
【０００２】[0002]
【従来の技術】水道水の水質確保のため、殺菌目的で塩
素が使用されている。しかし、塩素の影響により水道水
が臭味を呈したり、塩素がフミン質等の天然有機物と反
応して発ガン性物質のトリハロメタン類を生成する。そ
して、近年における塩素投入量の増加に伴い、トリハロ
メタン類の量も次第に増加する傾向を示している。2. Description of the Related Art To ensure the quality of tap water, chlorine is used for sterilization purposes. However, tap water has an odor due to the influence of chlorine, and chlorine reacts with natural organic substances such as humic substances to generate trihalomethanes as carcinogenic substances. And, with the increase of chlorine input in recent years, the amount of trihalomethanes tends to gradually increase.
【０００３】ここで、トリハロメタン類の除去手段とし
て、吸着量が優れた活性炭を用いた浄水器が提案されて
いる。[0003] Here, as a means for removing trihalomethanes, a water purifier using activated carbon having an excellent adsorption amount has been proposed.
【０００４】トリハロメタン類を吸着除去する活性炭
は、従来では、トリハロメタン類の吸着適性から、活性
炭の細孔の孔径を小さくしたものが使用されてきた。し
かし、細孔の孔径を小さくした活性炭は賦活度が小さ
く、吸着能力が低い。また、細孔容積が小さく吸着容量
が少ないため、寿命も短い。[0004] As the activated carbon for adsorbing and removing trihalomethanes, conventionally, activated carbon having a small pore diameter has been used in view of suitability for adsorption of trihalomethanes. However, activated carbon having a small pore diameter has a low activation degree and low adsorption capacity. Further, the life is short because the pore volume is small and the adsorption capacity is small.
【０００５】このような問題を解決するものとして、特
開平８−２６７１１号公報に記載のように、活性炭を不
活性ガス中で１２００〜１７００℃で熱処理する技術
や、特開平９−３１４１３１号公報に記載のように、活
性炭を不活性ガス中で２００〜１０００℃で熱処理する
技術が開示され、吸着能力と吸着容量が向上した活性炭
が提案されている。[0005] To solve such a problem, as described in JP-A-8-26711, a technique of heat-treating activated carbon at 1200 to 1700 ° C in an inert gas, and JP-A-9-314131. As described above, a technique for heat-treating activated carbon at 200 to 1000 ° C. in an inert gas has been disclosed, and an activated carbon having improved adsorption capacity and adsorption capacity has been proposed.
【０００６】[0006]
【発明が解決しようとする課題】しかし、上記に示した
活性炭の熱処理技術でも、なおトリハロメタン類の吸着
能力が低く、吸着容量も小さく寿命が短い。However, even with the activated carbon heat treatment technique described above, the adsorption capacity of trihalomethanes is still low, the adsorption capacity is small, and the life is short.
【０００７】そこで、本発明は、トリハロメタン類の吸
着能力に優れた活性炭の製造方法を提供することを目的
とする。Accordingly, an object of the present invention is to provide a method for producing activated carbon having an excellent ability to adsorb trihalomethanes.
【０００８】また、本発明は、トリハロメタン類の吸着
容量の大きな活性炭の製造方法を提供することを目的と
する。Another object of the present invention is to provide a method for producing activated carbon having a large adsorption capacity for trihalomethanes.
【０００９】[0009]
【課題を解決するための手段】この課題を解決するため
に、本発明の活性炭の製造方法は、エチレンガスおよび
アセチレンガスの少なくとも何れかのガス雰囲気中で加
熱処理を行うものである。Means for Solving the Problems In order to solve this problem, the method for producing activated carbon according to the present invention is to perform heat treatment in an atmosphere of at least one of ethylene gas and acetylene gas.
【００１０】また、本発明の活性炭の製造方法は、エチ
レンガスおよびアセチレンガスの少なくとも何れかのガ
スと還元性ガスとの混合ガス雰囲気中で加熱処理を行う
ものである。Further, in the method for producing activated carbon of the present invention, the heat treatment is performed in a mixed gas atmosphere of at least one of ethylene gas and acetylene gas and a reducing gas.
【００１１】さらに、本発明の活性炭の製造方法は、エ
チレンガスおよびアセチレンガスの少なくとも何れかの
ガスと不活性ガスとの混合ガス雰囲気中で加熱処理を行
うものである。Further, in the method for producing activated carbon of the present invention, the heat treatment is performed in a mixed gas atmosphere of at least one of ethylene gas and acetylene gas and an inert gas.
【００１２】そして、本発明の活性炭の製造方法は、エ
チレンガスおよびアセチレンガスの少なくとも何れかの
ガス、還元性ガスおよび不活性ガスの混合ガス雰囲気中
で加熱処理を行うものである。In the method for producing activated carbon according to the present invention, the heat treatment is performed in a mixed gas atmosphere of at least one of ethylene gas and acetylene gas, a reducing gas and an inert gas.
【００１３】これにより、トリハロメタン類の吸着能力
に優れ、トリハロメタン類の吸着容量の大きな活性炭が
得られる。As a result, activated carbon having excellent trihalomethane adsorption capacity and large trihalomethane adsorption capacity can be obtained.
【００１４】[0014]
【発明の実施の形態】本発明の請求項１に記載の発明
は、エチレンガスおよびアセチレンガスの少なくとも何
れかのガス雰囲気中で加熱処理を行う活性炭の製造方法
であり、トリハロメタン類の吸着能力に優れ、トリハロ
メタン類の吸着容量の大きな活性炭を得ることができる
という作用を有する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is a method for producing activated carbon by performing heat treatment in an atmosphere of at least one of ethylene gas and acetylene gas. It is excellent and has the effect that activated carbon having a large adsorption capacity for trihalomethanes can be obtained.
【００１５】本発明の請求項２に記載の発明は、エチレ
ンガスおよびアセチレンガスの少なくとも何れかのガス
と還元性ガスとの混合ガス雰囲気中で加熱処理を行う活
性炭の製造方法であり、トリハロメタン類の吸着能力に
優れ、トリハロメタン類の吸着容量の大きな活性炭を得
ることができるという作用を有する。The invention according to claim 2 of the present invention relates to a method for producing activated carbon, wherein a heat treatment is carried out in a mixed gas atmosphere of at least one of ethylene gas and acetylene gas and a reducing gas. It has the effect of being able to obtain activated carbon having a high adsorption capacity and a large adsorption capacity for trihalomethanes.
【００１６】本発明の請求項３に記載の発明は、エチレ
ンガスおよびアセチレンガスの少なくとも何れかのガス
と不活性ガスとの混合ガス雰囲気中で加熱処理を行う活
性炭の製造方法であり、トリハロメタン類の吸着能力に
優れ、トリハロメタン類の吸着容量の大きな活性炭を得
ることができるという作用を有する。The invention according to claim 3 of the present invention is a method for producing activated carbon in which a heat treatment is carried out in a mixed gas atmosphere of at least one of ethylene gas and acetylene gas and an inert gas. It has the effect of being able to obtain activated carbon having a high adsorption capacity and a large adsorption capacity for trihalomethanes.
【００１７】本発明の請求項４に記載の発明は、エチレ
ンガスおよびアセチレンガスの少なくとも何れかのガ
ス、還元性ガスおよび不活性ガスの混合ガス雰囲気中で
加熱処理を行う活性炭の製造方法であり、トリハロメタ
ン類の吸着能力に優れ、トリハロメタン類の吸着容量の
大きな活性炭を得ることができるという作用を有する。The invention according to claim 4 of the present invention is a method for producing activated carbon, wherein a heat treatment is performed in a mixed gas atmosphere of at least one of ethylene gas and acetylene gas, a reducing gas and an inert gas. Activated carbon having an excellent ability to adsorb trihalomethanes and having a large adsorption capacity for trihalomethanes can be obtained.
【００１８】以下、本発明の実施の形態について説明す
る。本発明者は、活性炭によってトリハロメタン類を効
率よく除去するために、活性炭のトリハロメタン類の吸
着特性を研究した。その結果、活性炭表面の表面官能基
の構造を変えて疎水性にすれば、トリハロメタン類の吸
着をより高めることができるとの発想を得た。そこで、
活性炭をエチレンガスやアセチレンガス雰囲気下で加熱
処理を行ってトリハロメタン類の吸着特性を検討したと
ころ、著しく吸着量が高められることが分かった。そし
て、これに基づいて本発明に到達したものである。Hereinafter, embodiments of the present invention will be described. The present inventor studied the adsorption characteristics of activated carbon for trihalomethanes in order to efficiently remove trihalomethanes by activated carbon. As a result, the inventor has obtained the idea that the adsorption of trihalomethanes can be further enhanced by changing the structure of the surface functional group on the activated carbon surface to make it hydrophobic. Therefore,
When the activated carbon was subjected to heat treatment in an atmosphere of ethylene gas or acetylene gas to examine the adsorption characteristics of trihalomethanes, it was found that the amount of adsorption was significantly increased. And based on this, it reached the present invention.
【００１９】まず、本発明に使用する活性炭原料は、粒
状および粉末活性炭については、ヤシ殻、おが屑、チッ
プ、石炭、石油等が有り、炭化処理を行い賦活させて活
性炭が精製される。また、繊維状活性炭については、フ
ェノール樹脂、レーヨン、アクリル、コールタール等が
あり、不融化処理を行い、炭化処理し賦活化して繊維状
活性炭が得られる。なお、本発明は、これら以外の活性
炭原料を用いてもよく、また、その形状も粉末、粒状、
繊維状など、どのようなものであってもよい。First, the activated carbon raw material used in the present invention includes coconut shell, sawdust, chips, coal, petroleum and the like for granular and powdered activated carbon. The activated carbon is refined by carbonization and activation. The fibrous activated carbon includes phenolic resin, rayon, acryl, coal tar, etc., and is infusibilized, carbonized, and activated to obtain fibrous activated carbon. In the present invention, activated carbon raw materials other than these may be used, and the shape is also powder, granular,
Any shape, such as fibrous, may be used.
【００２０】ここで、活性炭の比表面積は、１００ｍ2
／ｇ〜２０００ｍ2／ｇ、またはそれ以上であるが、ど
の比表面積の活性炭でも良い。但し、一般的には、比表
面積が１０００ｍ2／ｇ以上の活性炭が好ましい。Here, the specific surface area of the activated carbon is 100 m 2.
/ G to 2000 m 2 / g or more, but activated carbon having any specific surface area may be used. However, in general, activated carbon having a specific surface area of 1000 m 2 / g or more is preferable.
【００２１】また、活性炭の賦活方法には、水蒸気、二
酸化炭素、酸素等のガスと高温で接触反応させるか、塩
化亜鉛、リン酸、濃硫酸で処理する方法がある。そし
て、本発明はどの方法で賦活させても良い。As a method for activating the activated carbon, there is a method in which a gas such as steam, carbon dioxide, oxygen or the like is contacted at a high temperature or treated with zinc chloride, phosphoric acid or concentrated sulfuric acid. The present invention may be activated by any method.
【００２２】一般に、活性炭を空気雰囲気下で加熱処理
した場合、２００℃を超えると酸化反応が起こり、活性
炭の表面に、たとえばカルボキシル基、カルボニル基、
フェノール水酸基のような酸素を含んだ親水基が導入さ
れる。そして、空気中の酸素と活性炭表面とが化合し、
二酸化炭素、一酸化炭素等のガス成分となって表面の細
孔構造が発達する。しかし、たとえば１２００℃以上の
高温下では、細孔分布がトリハロメタン吸着に最適とい
われる５〜１０Åの孔径の細孔の割合が低下する。In general, when activated carbon is heated in an air atmosphere, an oxidation reaction occurs when the temperature exceeds 200 ° C., and a surface of the activated carbon such as a carboxyl group, a carbonyl group,
Hydroxy groups containing oxygen, such as phenolic hydroxyl groups, are introduced. And the oxygen in the air and the activated carbon surface combine,
As gas components such as carbon dioxide and carbon monoxide, the pore structure of the surface develops. However, at a high temperature of, for example, 1200 ° C. or higher, the ratio of pores having a pore size of 5 to 10 °, which is said to be optimal for trihalomethane adsorption, decreases.
【００２３】また、不活性ガス雰囲気下もしくは還元性
ガス雰囲気下で加熱処理すると、活性炭表面に付着して
いたカルボキシル基、カルボニル基、フェノール水酸基
は、疎水性の表面官能基、たとえば水素基に置換する。
しかし、不活性ガス雰囲気下もしくは還元性ガス雰囲気
下でたとえば１２００℃以上の高温下では、細孔分布が
トリハロメタン吸着に最適といわれる５〜１０Åの細孔
の割合が低下する。When heat treatment is performed in an inert gas atmosphere or a reducing gas atmosphere, carboxyl groups, carbonyl groups, and phenolic hydroxyl groups adhering to the activated carbon surface are replaced with hydrophobic surface functional groups, for example, hydrogen groups. I do.
However, under an inert gas atmosphere or a reducing gas atmosphere, for example, at a high temperature of 1200 ° C. or higher, the proportion of pores of 5 to 10 ° whose pore distribution is said to be optimal for trihalomethane adsorption decreases.
【００２４】そして、エチレンガスおよびアセチレンガ
スの少なくとも何れかのガス雰囲気中で加熱処理を行う
と、活性炭表面に付着していたカルボキシル基、カルボ
ニル基、フェノール水酸基は、疎水性の表面官能基、た
とえばメチル基、エチル基、もしくは環状構造になり、
表面の疎水性は高くなる。また、環状構造になることで
新たに活性炭の比表面積が向上し、たとえば１２００℃
以上の高温下では、細孔分布がトリハロメタン吸着に最
適といわれる５〜１０Åの細孔の割合が低下するのが防
止される。When heat treatment is performed in an atmosphere of at least one of ethylene gas and acetylene gas, carboxyl groups, carbonyl groups, and phenolic hydroxyl groups adhering to the activated carbon surface become hydrophobic surface functional groups, for example, Becomes a methyl group, an ethyl group, or a cyclic structure,
The surface becomes more hydrophobic. Moreover, the specific surface area of the activated carbon is newly improved due to the annular structure.
At the above-mentioned high temperature, a decrease in the proportion of pores of 5 to 10 ° whose pore distribution is said to be optimal for trihalomethane adsorption is prevented.
【００２５】このように、不活性ガス雰囲気下もしくは
還元性ガス雰囲気下でより疎水性を高める高温処理が１
２００℃付近で限界なのに対し、エチレンガスおよびア
セチレンガスの少なくとも何れかのガス雰囲気中で加熱
処理を行うと、高温処理１２００℃以上の加熱でもより
疎水性を高めることができる。さらに、同じ温度の加熱
処理でも、不活性ガス雰囲気下もしくは還元性ガス雰囲
気下より、エチレンガスおよびアセチレンガスの少なく
とも何れかのガス雰囲気中で加熱処理を行うと、より疎
水性が高まる。したがって、このようにして製造された
活性炭によれば、トリハロメタンの吸着量はより高まる
結果となる。As described above, the high-temperature treatment for increasing the hydrophobicity under an inert gas atmosphere or a reducing gas atmosphere is performed by one method.
When the heat treatment is performed in a gas atmosphere of at least one of ethylene gas and acetylene gas while the limit is around 200 ° C., the hydrophobicity can be further increased by heating at 1200 ° C. or higher. Further, even when the heat treatment is performed at the same temperature, when the heat treatment is performed in an atmosphere of at least one of ethylene gas and acetylene gas rather than in an inert gas atmosphere or a reducing gas atmosphere, the hydrophobicity is further increased. Therefore, according to the activated carbon thus produced, the adsorption amount of trihalomethane is further increased.
【００２６】なお、ここで、還元性ガスとは、活性炭と
化学反応をおこし、活性炭から酸素を脱離するガスのこ
とで、たとえば水素ガス、一酸化炭素ガス、亜硝酸ガ
ス、亜硫酸ガスを指す。また、不活性ガスとは、活性炭
と化学反応を起こさないガスで、たとえば、窒素、ヘリ
ウム、アンゴンを指す。Here, the reducing gas is a gas that causes a chemical reaction with activated carbon and desorbs oxygen from the activated carbon, and refers to, for example, hydrogen gas, carbon monoxide gas, nitrous acid gas, and sulfurous acid gas. . In addition, the inert gas is a gas that does not cause a chemical reaction with activated carbon, and refers to, for example, nitrogen, helium, and agon.
【００２７】[0027]
【実施例】市販の活性炭（武田薬品社白鷺Ｇ）を使用
し、以下の（表１）および（表２）に示す様々な条件で
加熱処理を行い、表面を改質した。そして、これにより
得られた活性炭を半径３ｃｍ、高さ５ｃｍ（容積１４０
ｍｌ）のカラムに充填し、ＳＶ６００（通水量１．４Ｌ
／分）で通水した。トリハロメタン溶液は、総トリハロ
メタン濃度１００ｐｐｂ（クロロホルム４５ｐｐｂ、ブ
ロモジクロロメタン３０ｐｐｂ、クロロジブロモメタン
２０ｐｐｂ、ブロモホルム５ｐｐｂ）に調製してカラム
に通水した。また、除去率を（１−活性炭出口濃度／活
性炭入り口濃度）×１００（％）とすると、活性炭の寿
命は除去率８０％以下のポイントで寿命と判断する。EXAMPLE A commercially available activated carbon (Shirasagi G, Takeda Pharmaceutical Co., Ltd.) was used and subjected to heat treatment under various conditions shown in the following (Table 1) and (Table 2) to modify the surface. Then, the activated carbon obtained in this way is 3 cm in radius and 5 cm in height (volume 140).
ml) and SV600 (water flow 1.4 L)
/ Min). The trihalomethane solution was adjusted to a total trihalomethane concentration of 100 ppb (chloroform 45 ppb, bromodichloromethane 30 ppb, chlorodibromomethane 20 ppb, bromoform 5 ppb) and passed through the column. Further, assuming that the removal rate is (1−concentration of activated carbon outlet / concentration of activated carbon inlet) × 100 (%), the life of activated carbon is determined to be life at the point where the removal rate is 80% or less.
【００２８】[0028]
【表１】 [Table 1]
【００２９】[0029]
【表２】 [Table 2]
【００３０】これらの表から、次のように考察できる。
Ｎｏ．１は、未焼成（ブランク）のため、トリハロメタ
ン吸着寿命は１８６０Ｌと低い。From these tables, the following can be considered.
No. Sample No. 1 has a low trihalomethane adsorption life of 1860 L because it is not fired (blank).
【００３１】Ｎｏ．２は、不活性ガス（アルゴンガス）
１００％で加熱処理した活性炭で、トリハロメタン吸着
寿命は２３５０ＬとＮｏ．１より延びる。No. 2 is an inert gas (argon gas)
Activated carbon heat-treated at 100%, the trihalomethane adsorption life was 2350 L, Extends from 1.
【００３２】Ｎｏ．３は、還元性ガス（水素ガス）１０
０％で加熱処理した活性炭で、トリハロメタン吸着寿命
は２４００ＬとＮｏ．１およびＮｏ．２より延びる。No. 3 is a reducing gas (hydrogen gas) 10
Activated carbon heat-treated at 0%, the trihalomethane adsorption life was 2400 L, 1 and No. Extends from 2.
【００３３】Ｎｏ．４および５は、エチレンガス、アセ
チレンガスを通気して焼成した本発明による活性炭で、
ブランクはもとより、不活性ガスおよび還元性ガスを用
いたときよりも寿命は延びている。No. 4 and 5 are activated carbons according to the present invention fired by passing ethylene gas and acetylene gas,
The service life is longer than when using an inert gas and a reducing gas as well as a blank.
【００３４】Ｎｏ．６〜Ｎｏ．１５により、エチレンガ
ス、アセチレンガスを不活性ガスや還元性ガスと混合し
た活性炭は、エチレンガスやアセチレンガスを含まない
活性炭よりトリハロメタン吸着寿命は延びることが判明
した。No. 6-No. According to No. 15, it was found that the activated carbon obtained by mixing ethylene gas and acetylene gas with an inert gas or a reducing gas has a longer trihalomethane adsorption lifetime than activated carbon not containing ethylene gas or acetylene gas.
【００３５】Ｎｏ．１６〜３０では焼成温度の変化を比
較した。これから、エチレンガスとアルゴンガスで焼成
した活性炭は８００℃のときに最も寿命が高い。しかし
ながら、アルゴンガス焼成品は１４００℃焼成でブラン
クと同等品にまで除去率が低下しているが、エチレンガ
ス焼成品は、このようなアルゴンガス焼成品と比べて寿
命が延びている。これは、不活性ガスでは焼成温度が８
００℃以上になると活性炭表面の細孔が大きくなり、細
孔分布がトリハロメタン吸着に最適といわれる孔径５〜
１０Åの細孔割合が低下するのに対し、エチレンガスで
焼成することで、環状構造になって新たに活性炭の比表
面積が向上し、たとえば１２００℃以上の高温下では、
細孔分布がトリハロメタン吸着に最適といわれる５〜１
０Åの細孔の割合が低下するのが防止されるからであ
る。No. In Nos. 16 to 30, changes in the firing temperature were compared. From this, activated carbon fired with ethylene gas and argon gas has the longest life at 800 ° C. However, the removal rate of the argon gas fired product has been reduced to a product equivalent to a blank at 1400 ° C. firing, but the life of the ethylene gas fired product is longer than that of such an argon gas fired product. This is because the firing temperature is 8 with an inert gas.
When the temperature exceeds 00 ° C., the pores on the activated carbon surface become large, and the pore size distribution is said to be optimal for trihalomethane adsorption.
While the pore ratio of 10 ° decreases, the specific surface area of activated carbon is newly improved by firing in ethylene gas to form a ring structure. For example, at a high temperature of 1200 ° C. or higher,
5-1 whose pore distribution is said to be optimal for trihalomethane adsorption
This is because the ratio of 0 ° pores is prevented from decreasing.
【００３６】Ｎｏ．３１〜３８ではエチレンガスにおけ
る焼成時間変化を比較した。これから、少なくとも０．
８Ｈ以上加熱すれば、アルゴンガスを用いたときよりト
リハロメタンの吸着寿命は延びることが判明した。No. In Nos. 31 to 38, changes in the firing time in ethylene gas were compared. From now on, at least 0.
It has been found that the heating life of 8H or more extends the adsorption life of trihalomethane compared to the case where argon gas is used.
【００３７】前述のように、本発明に使用する活性炭原
料は、粒状および粉末活性炭については、ヤシ殻、おが
屑、チップ、石炭、石油等が有り、炭化処理を行い賦活
させて活性炭が精製される。また、繊維状活性炭につい
ては、フェノール樹脂、レーヨン、アクリル、コールタ
ール等があり、不融化処理を行い、炭化処理し賦活化し
て繊維状活性炭が得られる。そして、Ｎｏ，３９〜４８
では、このように活性炭原料や形状に関係なく、所期の
効果が得られることが確認できた。As described above, the activated carbon raw materials used in the present invention include coconut shell, sawdust, chips, coal, petroleum, etc. for granular and powdered activated carbon, and activated carbon is refined by carbonization and activation. . The fibrous activated carbon includes phenolic resin, rayon, acryl, coal tar, etc., and is infusibilized, carbonized, and activated to obtain fibrous activated carbon. And No, 39-48
Thus, it was confirmed that the desired effect was obtained regardless of the activated carbon raw material and the shape.
【００３８】[0038]
【発明の効果】以上のように、本発明によれば、トリハ
ロメタン類の吸着能力に優れた活性炭が得られるという
有効な効果が得られる。As described above, according to the present invention, an effective effect of obtaining an activated carbon having an excellent ability to adsorb trihalomethanes can be obtained.
【００３９】また、本発明によれば、トリハロメタン類
の吸着容量の大きな活性炭が得られるという有効な効果
が得られる。Further, according to the present invention, an effective effect of obtaining activated carbon having a large adsorption capacity for trihalomethanes can be obtained.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 佐藤 琢磨 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 Ｆターム(参考） 4D024 AA02 AB11 BA02 4G046 HA01 HA02 HA03 HA05 HA06 HA07 HB01 HB02 HB03 HC14 4G066 AA05A AA05B AA06D AA10D AB01D BA36 CA33 DA07 FA18 FA22 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takuma Sato 1006 Kazuma Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. F-term (reference) 4D024 AA02 AB11 BA02 4G046 HA01 HA02 HA03 HA05 HA06 HA07 HB01 HB02 HB03 HC14 4G066 AA05A AA05B AA06D AA10D AB01D BA36 CA33 DA07 FA18 FA22
Claims (4)
くとも何れかのガス雰囲気中で加熱処理を行うことを特
徴とする活性炭の製造方法。1. A method for producing activated carbon, wherein a heat treatment is performed in an atmosphere of at least one of ethylene gas and acetylene gas.
くとも何れかのガスと還元性ガスとの混合ガス雰囲気中
で加熱処理を行うことを特徴とする活性炭の製造方法。2. A method for producing activated carbon, comprising performing heat treatment in a mixed gas atmosphere of at least one of ethylene gas and acetylene gas and a reducing gas.
くとも何れかのガスと不活性ガスとの混合ガス雰囲気中
で加熱処理を行うことを特徴とする活性炭の製造方法。3. A method for producing activated carbon, comprising performing a heat treatment in a mixed gas atmosphere of at least one of ethylene gas and acetylene gas and an inert gas.
くとも何れかのガス、還元性ガスおよび不活性ガスの混
合ガス雰囲気中で加熱処理を行うことを特徴とする活性
炭の製造方法。4. A method for producing activated carbon, comprising performing heat treatment in a mixed gas atmosphere of at least one of ethylene gas and acetylene gas, a reducing gas and an inert gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11000568A JP2000203823A (en) | 1999-01-05 | 1999-01-05 | Production of activated carbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11000568A JP2000203823A (en) | 1999-01-05 | 1999-01-05 | Production of activated carbon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000203823A true JP2000203823A (en) | 2000-07-25 |
Family
ID=11477325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11000568A Withdrawn JP2000203823A (en) | 1999-01-05 | 1999-01-05 | Production of activated carbon |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000203823A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002137911A (en) * | 2000-10-31 | 2002-05-14 | Matsushita Electric Ind Co Ltd | Activated carbon manufacturing method, activated carbon manufactured with its method, and water cleaning apparatus equipped with activated carbon |
| JP2016098124A (en) * | 2014-11-19 | 2016-05-30 | 株式会社Kri | Hydrophobic activated carbon and method of manufacturing the same |
| WO2017010546A1 (en) * | 2015-07-14 | 2017-01-19 | 三菱レイヨン株式会社 | Carbon material and production method for same |
| WO2017010509A1 (en) * | 2015-07-14 | 2017-01-19 | 三菱レイヨン株式会社 | Carbon material and method for producing same |
| JP2019081667A (en) * | 2017-10-30 | 2019-05-30 | 旭化成株式会社 | Nitrogen-containing carbon material, production method thereof, and fuel cell electrode using the same |
| WO2019244904A1 (en) * | 2018-06-19 | 2019-12-26 | 株式会社アドール | Activated carbon |
-
1999
- 1999-01-05 JP JP11000568A patent/JP2000203823A/en not_active Withdrawn
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002137911A (en) * | 2000-10-31 | 2002-05-14 | Matsushita Electric Ind Co Ltd | Activated carbon manufacturing method, activated carbon manufactured with its method, and water cleaning apparatus equipped with activated carbon |
| JP2016098124A (en) * | 2014-11-19 | 2016-05-30 | 株式会社Kri | Hydrophobic activated carbon and method of manufacturing the same |
| KR102016272B1 (en) | 2015-07-14 | 2019-08-29 | 미쯔비시 케미컬 주식회사 | Carbon material and its manufacturing method |
| CN107849748B (en) * | 2015-07-14 | 2020-09-15 | 三菱化学株式会社 | Carbon material and method for producing same |
| KR20180019704A (en) * | 2015-07-14 | 2018-02-26 | 미쯔비시 케미컬 주식회사 | Carbon material and its manufacturing method |
| CN107849748A (en) * | 2015-07-14 | 2018-03-27 | 三菱化学株式会社 | Carbon material and its manufacture method |
| JPWO2017010509A1 (en) * | 2015-07-14 | 2018-06-07 | 三菱ケミカル株式会社 | Carbon material and manufacturing method thereof |
| US10975501B2 (en) | 2015-07-14 | 2021-04-13 | Mitsubishi Chemical Corporation | Carbon material and production method for same |
| WO2017010546A1 (en) * | 2015-07-14 | 2017-01-19 | 三菱レイヨン株式会社 | Carbon material and production method for same |
| WO2017010509A1 (en) * | 2015-07-14 | 2017-01-19 | 三菱レイヨン株式会社 | Carbon material and method for producing same |
| JP2019081667A (en) * | 2017-10-30 | 2019-05-30 | 旭化成株式会社 | Nitrogen-containing carbon material, production method thereof, and fuel cell electrode using the same |
| JP6683969B1 (en) * | 2018-06-19 | 2020-04-22 | 株式会社アドール | Activated carbon |
| JP2020111505A (en) * | 2018-06-19 | 2020-07-27 | 株式会社アドール | Activated carbon |
| WO2019244904A1 (en) * | 2018-06-19 | 2019-12-26 | 株式会社アドール | Activated carbon |
| CN112135794A (en) * | 2018-06-19 | 2020-12-25 | 株式会社安德如 | Activated carbon |
| CN112135794B (en) * | 2018-06-19 | 2023-09-05 | 株式会社安德如 | activated carbon |
| JP7428347B2 (en) | 2018-06-19 | 2024-02-06 | 株式会社アドール | activated carbon |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3669373B2 (en) | Process for producing activated coke for simultaneous desulfurization and denitrification | |
| JPH09239265A (en) | Mercury adsorbent | |
| WO2016013619A1 (en) | Activated carbon with excellent adsorption performance and process for producing same | |
| FR2639846A1 (en) | ACTIVE CHARCOAL AND ALUMINA COMPOSITE AND PROCESS FOR PREPARING THE SAME | |
| MX2013003448A (en) | Mesoporous activated carbon and methods of producing same. | |
| KR20160142275A (en) | Activated carbon for water purifier | |
| JPWO2019244903A1 (en) | Activated carbon | |
| JP2022132348A (en) | Activated carbon and production method thereof | |
| JP4142341B2 (en) | Activated carbon and its manufacturing method | |
| JP4418079B2 (en) | Method for producing activated coke having high strength and high adsorption capacity | |
| Manirajah et al. | Evaluation of low cost-activated carbon produced from waste tyres pyrolysis for removal of 2-chlorophenol | |
| JP2000203823A (en) | Production of activated carbon | |
| JP2006247527A (en) | Adsorbent | |
| JP4292243B2 (en) | Phosphate ion adsorbent comprising activated carbon, method for producing the same, and phosphate ion adsorbing method | |
| WO1992011202A1 (en) | Process for producing formed active coke for desulfurization and denitrification with high denitrification performance | |
| KR102478521B1 (en) | Composite adsorbent containing coffee beans and iron hydroxide | |
| JP2002102689A (en) | Carbonaceous adsorbent | |
| JP2967389B2 (en) | Activated carbon fiber, method for producing the same, and water purifier using the activated carbon fiber as an adsorbent | |
| JP3947285B2 (en) | Manufacturing method of activated carbon for desulfurization and denitration with high denitration performance | |
| JPH07155608A (en) | Production of high capacity carbon material | |
| JP3066145B2 (en) | Activated carbon and its manufacturing method | |
| JPWO2003033135A1 (en) | Activated carbon fiber for removing organochlorine compounds | |
| KR20230060515A (en) | Adsorbent treated with copper and nitrogen and method for preparing the same | |
| JP4876307B2 (en) | Method for producing activated carbon | |
| JPH0824636A (en) | Production of adsorbent and water purifying apparatus using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20051006 |
|
| RD01 | Notification of change of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7421 Effective date: 20051114 |
|
| A761 | Written withdrawal of application |
Free format text: JAPANESE INTERMEDIATE CODE: A761 Effective date: 20070730 |