JPS582211A - Reformed activated carbon - Google Patents
Reformed activated carbonInfo
- Publication number
- JPS582211A JPS582211A JP56098638A JP9863881A JPS582211A JP S582211 A JPS582211 A JP S582211A JP 56098638 A JP56098638 A JP 56098638A JP 9863881 A JP9863881 A JP 9863881A JP S582211 A JPS582211 A JP S582211A
- Authority
- JP
- Japan
- Prior art keywords
- activated carbon
- carbon
- vapor
- solvent
- mixture
- 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
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、新らしい改質活性炭に関するものである。詳
しくは通常の活性炭では吸着しにくい有機溶剤蒸気を吸
着するに適した改質活性炭に関するものである゛、特に
ガソリン□とアルコールの混合燃料を使用した自動車の
キャニスタ−用の活性炭として優れ九性質を備え九斬ら
しい活性炭KIlするものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel modified activated carbon. The details relate to modified activated carbon that is suitable for adsorbing organic solvent vapors that are difficult to adsorb with ordinary activated carbon.It has nine excellent properties, especially as activated carbon for car canisters that use a mixed fuel of gasoline and alcohol. It is made of activated charcoal, which is typical of preparation.
活性炭は微細な孔が発達し丸太部分が炭素質の吸着性の
強い物質であ)、気体あるいは蒸気を吸着して、溶剤の
回収、ガスの精製に、あるいは液体と混合して、溶剤の
精製、脱色などに用いられる。更にまた触媒の担体とし
て4使用されている。そしてこれらの利用分野は、例え
ば、大気汚染防止、水質汚染防止をはじめ資源の再利用
等ますます増大し、それと共に活性炭に要求される特性
も多岐にわた如、かつ厳しいものとなっている。Activated carbon is a highly adsorbent material with fine pores developed and the log portion made of carbonaceous material), and can be used to adsorb gas or vapor to recover solvents, purify gases, or mix with liquids to purify solvents. , used for decolorization, etc. Furthermore, it is also used as a carrier for catalysts. The fields of use of these materials, for example, air pollution prevention, water pollution prevention, and resource reuse, are increasing more and more, and the properties required of activated carbon are also becoming more diverse and demanding.
例えば自動車の燃料蒸気放散防止のためのキャスター用
の活性炭があるが、燃料として従来のガソリンに加えて
アルコールを併用した場合には従来普通に用いられてい
た活性炭では吸着能が低くこれを充填しえ場合キャニス
タ−は満足に機能しない。For example, there is activated carbon for casters used to prevent fuel vapor dissipation in automobiles, but when alcohol is used in addition to conventional gasoline as a fuel, the activated carbon that has been commonly used in the past has a low adsorption capacity and must be filled with it. If so, the canister will not function satisfactorily.
われわれはガソリンとアルコール混合物のように二種類
の、しかも極性溶剤と非極性溶剤のような混合物の蒸気
ta収するに適した活性炭會得るべく研究を重ねえ結果
本発明に到達した。We have conducted repeated research to obtain an activated carbon suitable for collecting the vapors of two types of mixtures, such as gasoline and alcohol mixtures, and moreover, polar solvents and non-polar solvents, and as a result, we have arrived at the present invention.
即ち、本発明は930℃で30分間真空説気し死時に発
生する一酸化炭素と炭酸ガスとから計算した酸素量(以
下表面酸素量という)をコ0〜Sθ〜/l持つ九活性炭
に在る。That is, the present invention is based on nine activated carbons having an oxygen amount (hereinafter referred to as surface oxygen amount) of 0~Sθ~/l calculated from carbon monoxide and carbon dioxide gas generated at the time of death by vacuum insufflation at 930°C for 30 minutes. Ru.
以下、本発明の詳細な説明する。The present invention will be explained in detail below.
本発明の改質活性炭は通常の方法で得られた各種の活性
炭を酸化処理して得られる。酸化処理法としては、空気
酸化法、窒素酸化物、イオウ酸化物あるいはハロゲンを
用いる酸化法、オゾン酸化法あるいは硝酸酸化法などい
ずれの方法本採用される。酸化条件は、用いる酸化剤に
より大巾に変えられるが、普通室温〜WOO℃の温度で
1分〜/に時間の範囲で任意選定される。勿論用いられ
る活性炭は通常の方法に従って製造された木炭系あるい
は石炭系のいずれでもよいが、使用目的に厄じてその粒
径、硬さ等選択される。例えば自動車のキャニスタ−用
としての用途に供する場合には、平均粒径/、S w程
度で、JI8硬さが90以上のものが好ましい。The modified activated carbon of the present invention is obtained by oxidizing various activated carbons obtained by conventional methods. As the oxidation treatment method, any method such as air oxidation method, oxidation method using nitrogen oxide, sulfur oxide or halogen, ozone oxidation method or nitric acid oxidation method is employed. The oxidation conditions can vary widely depending on the oxidizing agent used, but are usually arbitrarily selected within the range of 1 minute to 1 minute at a temperature of room temperature to WOO°C. Of course, the activated carbon used may be either charcoal-based or coal-based activated carbon produced by a conventional method, but its particle size, hardness, etc. are selected depending on the purpose of use. For example, when used as an automobile canister, it is preferable to have an average particle size of about 1/2 Sw and a JI8 hardness of 90 or more.
なお、粉状の活性炭を原料とするときは、これを粉状の
まま酸化処理して改質し、得られ九粉状のものを適当の
大きさに造粒してもよいし、これを改質に先だって造粒
し、それを改質処理してもよい。When powdered activated carbon is used as a raw material, it may be modified by oxidation treatment in its powder form, and the resulting powder may be granulated to an appropriate size. Prior to modification, it may be granulated and then subjected to modification treatment.
得られた本発明の改質活性炭は、低分子の極性有機溶剤
と非極性溶剤とからなる混合物の蒸気管効率よく吸着す
る。%にガソリンとメタノールやエタノールのようなア
ルコールとの混合物の蒸気管良好に吸着するので、ガソ
リンとアルコールの混合物を燃料とする自動車のキャニ
スタ−用として好適である。その他各種溶剤蒸気の分離
、回収、除去に有効に供される。The obtained modified activated carbon of the present invention efficiently adsorbs a mixture of a low-molecular polar organic solvent and a non-polar solvent in a steam pipe. % of gasoline and an alcohol such as methanol or ethanol, it is suitable for use in a canister for an automobile that uses a mixture of gasoline and alcohol as fuel. It can be effectively used to separate, recover, and remove various other solvent vapors.
以下に実施例を挙げて本発明會更に具体的に説明するが
、本発明は以下の実施例に限定されるものではないこと
いうまでもない。The present invention will be described in more detail with reference to Examples below, but it goes without saying that the present invention is not limited to the following Examples.
実施例1
石炭系粒状活性炭ダイアホープ0(登録商標名>5on
yt−ロータリーキルンにてl100℃に加熱しながら
、空気を所定時間流して表rijJ酸素量がコj、/と
亭9.0〜/lなる活性炭を作成し友。この活性炭/
00 cc をカラムに充填して、メタノール/ガソ
リンの配合比t/ t/I kとし九メタノール混合ガ
ソリンを加熱蒸発させ、その蒸気と空気の混合ガスをカ
ラムに導通し、活性炭層の出口濃度が0./マol嗟に
:するまで吸着し、次に10分間空気を通して脱着し、
この脱着kJlil繰返し友後、参回目の吸着開始at
t。Example 1 Coal-based granular activated carbon Diahope 0 (registered trademark name>5on
While heating to 100°C in a rotary kiln, air was flowed for a predetermined period of time to prepare activated carbon with an oxygen content of 9.0 to 9.0/l. This activated carbon/
00 cc was packed into a column, the methanol/gasoline mixture ratio was set to t/t/Ik, the methanol mixed gasoline was heated and evaporated, and the mixed gas of the vapor and air was passed through the column, and the concentration at the outlet of the activated carbon layer was 0. / Immediately: adsorb until , then desorb by passing air through for 10 minutes,
After this desorption kJlil is repeated, the third adsorption starts at
t.
分間に活性炭層から漏れ出してくるアルコールと縦比水
素の合計量(以後初期リーク量という)tS定した。下
記の如く、本発明品では初期リーク量が大巾に減少して
いることがわかる。The total amount of alcohol and aspect ratio hydrogen (hereinafter referred to as initial leakage amount) tS leaking out of the activated carbon layer per minute was determined. As shown below, it can be seen that the initial leakage amount is significantly reduced in the product of the present invention.
実施例コ
実施例1と同種の活性真上用い空気酸化法によ如表面酸
素量’iJ?、ツatp/IKし九粒状活性炭を用いて
メタノール?j憾ガソリンJj−の混合ガソリンで、実
施例/)と同様に初期リークテストを行なり九。その結
果は下表の通)テ゛^、た。Example: The amount of surface oxygen 'iJ? , methanol using TTP/IK and nine granular activated carbon? An initial leak test was conducted in the same manner as in Example 9 using a mixture of gasoline and gasoline. The results are shown in the table below.
メタノールの混合比率を増しても効果は顕著に出ている
ことがわかる。It can be seen that even when the mixing ratio of methanol is increased, the effect is remarkable.
実施例J
実施例1と同種の活性炭44.tlYtカツムに充填し
、室温にてオゾン+空気の混合ガスt6時間流し、酸化
処理を行なう九。Example J Activated carbon of the same type as Example 1 44. 9. Fill in a tlYt Katsumu and perform oxidation treatment by flowing a mixed gas of ozone and air at room temperature for t6 hours.
このJ611活性炭を実施例1と同じ方法で初期リーク
量t−測定し九。その結果を下表に示す。The initial leakage amount t of this J611 activated carbon was measured in the same manner as in Example 1. The results are shown in the table below.
本処塩七行なった活性炭は初期リークに対し、顕著な効
果を示した。The activated carbon treated with this salt showed a remarkable effect on initial leakage.
実施例部
魂柱自動車のガソリン蒸気放散防止キャニスタ−に使用
されている、表面酸素量が9.2ail/1ヤシガラ活
性炭(市販品)Kついて空気酸化により表面酸素量f:
30.0ダ/gとし丸。Example part Surface oxygen amount f: 9.2 ail/1 Coconut husk activated carbon (commercial product) K used in a gasoline vapor diffusion prevention canister for a soul pillar automobile is oxidized by air:
30.0 Da/g Toshimaru.
これらの活性炭を実施例/)と同じ方法により初期リー
ク量を測定した。結果を下表に示す。The initial leakage amount of these activated carbons was measured by the same method as in Example/). The results are shown in the table below.
出 願 人 三菱化成工業株式会社 はか1名□ ″Sender: Mitsubishi Chemical Industries, Ltd. 1 person□ ″
Claims (1)
一酸化炭素と炭酸ガスとから計算した酸素量が一〇 −
j OQ / Iである活性炭(2)vtO℃で30分
間真空鋭気した時に発生する一酸化炭素と炭−ガスとか
ら計算し九酸素量カ20〜30〜/lである活性炭を主
体とし九ガソリンーアルコール混金物蒸気吸着用活性炭(1) The amount of oxygen calculated from the carbon monoxide and carbon dioxide gas generated during running in a vacuum at tSO℃ for 30 minutes is 10 -
j Activated carbon with OQ / I (2) vtO Calculated from carbon monoxide and charcoal gas generated when vacuumed for 30 minutes at O℃ -Activated carbon for vapor adsorption of alcohol mixed metals
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56098638A JPS582211A (en) | 1981-06-25 | 1981-06-25 | Reformed activated carbon |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56098638A JPS582211A (en) | 1981-06-25 | 1981-06-25 | Reformed activated carbon |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS582211A true JPS582211A (en) | 1983-01-07 |
JPH0152324B2 JPH0152324B2 (en) | 1989-11-08 |
Family
ID=14225045
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56098638A Granted JPS582211A (en) | 1981-06-25 | 1981-06-25 | Reformed activated carbon |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS582211A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10518161B2 (en) | 2005-09-12 | 2019-12-31 | Sony Corporation | Sound-output-control device, sound-output-control method, and sound-output-control program |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3909494B2 (en) | 2003-02-25 | 2007-04-25 | 株式会社キャタラー | Method for producing activated carbon for canisters |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5127892A (en) * | 1974-08-27 | 1976-03-09 | Showa Denko Kk | |
JPS51137694A (en) * | 1975-05-23 | 1976-11-27 | Toho Rayon Co Ltd | Method of producing activated carbon fiber |
JPS52123990A (en) * | 1976-04-09 | 1977-10-18 | Bayer Ag | Manufacture of active carbon |
JPS55126527A (en) * | 1979-03-22 | 1980-09-30 | Hitachi Chem Co Ltd | Heat regenerating method and apparatus for powder activated carbon |
-
1981
- 1981-06-25 JP JP56098638A patent/JPS582211A/en active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5127892A (en) * | 1974-08-27 | 1976-03-09 | Showa Denko Kk | |
JPS51137694A (en) * | 1975-05-23 | 1976-11-27 | Toho Rayon Co Ltd | Method of producing activated carbon fiber |
JPS52123990A (en) * | 1976-04-09 | 1977-10-18 | Bayer Ag | Manufacture of active carbon |
JPS55126527A (en) * | 1979-03-22 | 1980-09-30 | Hitachi Chem Co Ltd | Heat regenerating method and apparatus for powder activated carbon |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10518161B2 (en) | 2005-09-12 | 2019-12-31 | Sony Corporation | Sound-output-control device, sound-output-control method, and sound-output-control program |
Also Published As
Publication number | Publication date |
---|---|
JPH0152324B2 (en) | 1989-11-08 |
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