JPS61151012A - Method of activating carbide - Google Patents
Method of activating carbideInfo
- Publication number
- JPS61151012A JPS61151012A JP59275250A JP27525084A JPS61151012A JP S61151012 A JPS61151012 A JP S61151012A JP 59275250 A JP59275250 A JP 59275250A JP 27525084 A JP27525084 A JP 27525084A JP S61151012 A JPS61151012 A JP S61151012A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- carbide
- activating
- oxygen
- furnace
- 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
Abstract
Description
【発明の詳細な説明】
本発明は、マクロポア又は、ミクロボアの改善された活
性炭を得るための炭化物の賦活方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for activating carbide to obtain activated carbon with improved macropores or micropores.
従来、活性炭は各種の炭素質原料を、それに適応した加
熱条件下で炭化し、ついで水蒸気、炭酸ガス、あるいは
空気等の酸化性ガスと高温反応させて賦活することによ
って製造されている。（特公昭ｊ７−４０２１≠）とこ
ろが、これらの方法では熱収支上、賦活ガスのＳ置設定
範囲が狭く、且つ濃度設定に限界がある、更には同一濃
度設定での水蒸気等の使用量が多い等の欠点がある。そ
こで、本発明者等はこれらの欠点の改善された賦活方法
につき鋭意検討を重ねた結果、酸素ガス源として純酸素
又は７９容量チよりも少ない不活性ガスを含有する酸素
含有ガスを使用すれば、広い濃度範囲にわたシ賦活ガス
の濃度、使用量を調節でき、特に同一の酸素濃度の場合
に水蒸気及び／又は炭酸ガスの濃度を極めて自在かつ経
済的有利に高水準に選択できることを見出して、本発明
に到達した。Activated carbon has conventionally been produced by carbonizing various carbonaceous raw materials under suitable heating conditions, and then activating them by reacting them at high temperatures with oxidizing gases such as steam, carbon dioxide, or air. (Special Publication No. 7-4021 ≠) However, in these methods, the setting range of the S position of the activation gas is narrow due to heat balance, and there is a limit to the concentration setting, and furthermore, the amount of water vapor, etc. used is large at the same concentration setting. There are drawbacks such as. Therefore, the inventors of the present invention have conducted extensive studies on an activation method that improves these drawbacks, and have found that if pure oxygen or an oxygen-containing gas containing an inert gas less than 79 volumes is used as the oxygen gas source, It has been discovered that the concentration and usage amount of the activating gas can be adjusted over a wide concentration range, and in particular, when the oxygen concentration is the same, the concentration of water vapor and/or carbon dioxide can be extremely freely and economically advantageously selected at a high level. , arrived at the present invention.
すなわち、本発明の要旨は、粉状乃至は粉状の炭化物を
、水蒸気及び／又は炭酸ガス並びに酸素ガスの存在下、
７００−１１００℃の温度に加熱して賦活する方法にお
いて、酸素ガス源として純酸素又は、７？容量チより少
ない不活性ガスを含有する酸素含有ガスを使用し、系内
の水蒸気濃度及び／又は炭酸ガス濃度を高水準に保持す
ることを特徴とする炭化物の賦活方法に存する。That is, the gist of the present invention is to process powdery or powdery carbide in the presence of water vapor and/or carbon dioxide gas and oxygen gas,
In the method of activation by heating to a temperature of 700-1100°C, pure oxygen or 7? is used as the oxygen gas source. The method of activating carbide is characterized by using an oxygen-containing gas containing an inert gas less than the volume capacity and maintaining the water vapor concentration and/or carbon dioxide concentration in the system at a high level.
次に本発明の詳細な説明する。本発明に用いられる炭化
物は、従来、活性炭製造用として用いられてい友もので
あればよく１例えば泥炭。Next, the present invention will be explained in detail. The carbide used in the present invention may be any material that has been conventionally used for producing activated carbon, such as peat.
亜炭、褐炭、亜瀝青炭、瀝青炭等の石炭系、アスファル
トピッチ等の石油系、木炭等の木質系、ヤシガラ等の果
実殻系等の炭素質原料を、そのまま又は微粉砕したもの
を成形し友後解砕したもの、更にはｏ、ｉ Ａ−２，Ｏ
ｄ程度のペンシル、アーモンド、ハニカム状に成形した
ものを！０Ｏ−２００℃程度のそれぞれの炭素質原料に
適応し九温度で炭化するととによシ製造される。該炭化
物は、通常、平“均粒径０．ｊ −！、Ｏｍ１比表面槓
、数ｉｏ〜数１ｏｏＷ？７ｔ、平均細孔容積０．０ ／
−０，２０ｔｄ ／ ｔの物性を有する。賦活は周知
の多段炉、ロータリーキルン、流動床等の賦活炉を用い
て７００〜／１００℃温度で後述する賦活ガスと向流又
は並流で接触させることにより行われる。Tomogo is made by molding carbonaceous raw materials such as lignite, lignite, sub-bituminous coal, bituminous coal, petroleum materials such as asphalt pitch, wood materials such as charcoal, and fruit shells such as coconut shells, either as they are or after finely pulverizing them. Crushed ones, and also o, i A-2, O
A d-sized pencil, almond, or shaped into a honeycomb shape! It is suitable for each carbonaceous raw material of about 0 to 200 degrees Celsius and is produced by carbonization at nine temperatures. The carbide usually has an average particle size of 0.j-!, a specific surface of Om1, several io to several 1ooW?7t, and an average pore volume of 0.0/
It has physical properties of -0,20td/t. Activation is carried out using a well-known activation furnace such as a multistage furnace, a rotary kiln, or a fluidized bed, by contacting the material with an activation gas described later in countercurrent or cocurrent at a temperature of 700 to 100°C.
賦活ガスとしては、水蒸気及び／又は、炭酸ガスを２０
〜？ ＯＶｏｌチ、酸素ガスを０．／〜μＯＶｏ１％含
有するもので、該酸素ガス源として純酸素ガス、又は、
不活性ガスを７９ＶＯＩチ以下、好ましくは！ ＯＶｏ
ｌ ％以下含有する酸素含有ガス（以下これらを単に酸
素ガスと記す。）を使用する。賦活炉への酸素ガスの導
入方法は、酸素ガスを直接炉へ供給するかあるいは水蒸
気、空気等と混合して供給する。As the activating gas, water vapor and/or carbon dioxide gas is used.
~? OVolchi, oxygen gas to 0. /~μOVo1%, and the oxygen gas source is pure oxygen gas, or
Inert gas should be less than 79 VOI, preferably! OVo
An oxygen-containing gas containing 1% or less (hereinafter referred to simply as oxygen gas) is used. The method of introducing oxygen gas into the activation furnace is to supply oxygen gas directly to the furnace or to mix it with water vapor, air, etc. and supply it.
本発明では酸素源として使用する酸素ガスの酸素濃度を
調整することにより、系内の水蒸気嗅度及び／又は炭酸
ガス４度を、目的とするポアサイズが得られる濃度に調
整する。該濃度は目的によって異なるので、一義的には
決められないが、通常０．／ −４Ｌ ＯＶｏ１％程度
から選ばれる。In the present invention, by adjusting the oxygen concentration of the oxygen gas used as an oxygen source, the water vapor odor and/or carbon dioxide gas 4 degrees in the system are adjusted to a concentration that allows the desired pore size to be obtained. The concentration varies depending on the purpose, so it cannot be determined unambiguously, but it is usually 0. / -4L OVo1% or so.
賦活ガスの供給蓋は、賦活炉の構造や賦活温度等によシ
異なるが、通常炭化物／ ｋｇ当シコ〜２０ Ｎｇ／／
Ｈｒ好ましくはＪ 〜／ ＯＭｙｆ／Ｅｌｒ から選
定される。The supply lid for the activation gas varies depending on the structure of the activation furnace, activation temperature, etc., but it usually handles carbide/kg ~ 20 Ng//
Hr is preferably selected from J~/OMyf/Elr.
このようにして得られた活性炭は、水処理用、食品脱色
用あるいはガス吸着用等、それぞれの用途に供される。The activated carbon thus obtained is used for various purposes such as water treatment, food decolorization, and gas adsorption.
以上詳述したように、本発明法では酸素源として純酸素
又は、不活性ガスを７９ｖｏ１％以下含有する酸素含有
ガスを使用することによシ、系内の水蒸気濃度及び／又
は炭酸ガス濃度を高水準に保持し、且つ調整することに
よって、活性炭のマクロポア又はミクロポアの量を調整
することができるので活性物の賦活方法として有用であ
る。さらに使用ユーティリティーの削減という効果があ
る。As detailed above, in the method of the present invention, by using pure oxygen or an oxygen-containing gas containing 79 vol or less of an inert gas as an oxygen source, the water vapor concentration and/or carbon dioxide concentration in the system can be reduced. By maintaining and adjusting the level at a high level, the amount of macropores or micropores in activated carbon can be adjusted, which is useful as a method for activating active substances. Furthermore, it has the effect of reducing the amount of utilities used.
次に、本発明を実施例によシ更に具体的に説明するが、
本発明は、その要旨をこえない限シ以下の実例に限定さ
れるものではない。Next, the present invention will be explained in more detail with reference to examples.
The present invention is not limited to the following examples as long as they do not go beyond the gist of the invention.
実施例／〜コ
０−０−６＝−２１の石炭系粒状炭化物を原料とじヘレ
ショフ型多段炉を用いて賦活を実施した。炭化物は／
００ ｋｇ ／ Ｈｒ の割合で多段炉の最上段に導入
し、賦活には水蒸気酸素ガス及び空気を第１表の割合で
使用した。水蒸気はそのまま、酸素ガスは空気と混合後
炉内に開口する配管よシそれぞれ供給した。炉内は、水
蒸気、及び空気と酸素ガスとの混合ガスの供給割合を調
節して炉内雰囲気ガスの温度が１ｏｏｏ℃になるよう制
御した。Example/~ Coal-based granular carbide of 0-0-6=-21 was combined as a raw material and activated using a Herreshoff-type multi-stage furnace. Carbide is/
00 kg/Hr was introduced into the top stage of the multi-stage furnace, and steam, oxygen gas and air were used at the rates shown in Table 1 for activation. Water vapor was mixed with air, and oxygen gas was mixed with air and then supplied through piping opening into the furnace. The inside of the furnace was controlled so that the temperature of the atmosphere gas inside the furnace was 100° C. by adjusting the supply ratio of water vapor and a mixed gas of air and oxygen gas.
この様にして得られた活性炭の性能を測定し得られた結
果を第１表に示す。The performance of the activated carbon thus obtained was measured and the results are shown in Table 1.
なお、比較のために実施例に用いたと同じ炭化物を、酸
素源として空気のみを使用し、かつ炉内雰囲気ガス温度
を１０００℃に保つための熱源としてコークス炉ガスを
使用する以外は実施例と同様にして賦活を行なった。得
られた結果を併せて第１表に示す。For comparison, the same carbide used in the example was used, except that only air was used as the oxygen source and coke oven gas was used as the heat source to maintain the furnace atmosphere gas temperature at 1000°C. Activation was performed in the same manner. The obtained results are also shown in Table 1.
表から明らかなように本発明により得られた活性炭は吸
着性能の著しい向上が認められた。As is clear from the table, the activated carbon obtained according to the present invention was found to have significantly improved adsorption performance.
更に、本発明では単位活性炭製造量当シの水蒸気、の使
用量を大巾に削減出来ると共にコークス炉ガスを使用し
なくてよい利点もある。Furthermore, the present invention has the advantage that the amount of water vapor used per unit amount of activated carbon produced can be greatly reduced, and that coke oven gas does not need to be used.
第１表
ＡＢ８吸着ＪＪｋ： ｊ Ｏｒｔｔｌの／ ０００
ＰＰｍドデシルベンゼンスルホン酸ナトリウム水溶液中
に
Ｏ０！２の活性炭を投入し３５℃で
３０分間掘とう吸着させた時の活性
炭尋位重量当シの吸着量。Table 1 AB8 adsorption JJk: j Orttl / 000
PPm Adsorption amount per body weight of activated carbon when O0!2 activated carbon was put into an aqueous solution of sodium dodecylbenzenesulfonate and adsorbed at 35°C for 30 minutes.
ヨウ素吸着カニ Ｊ工８に／≠７≠
ｎ−ｙｙン吸着量：活性炭コＯｗｔｌを吸収管に入れ上
向流でｎ−ブタンを２１Ｏｔｒｑ／−の速度でｌ！仕分
間す。その後下向流にて
空気、２００ｒｎｌ／順を２０分間流し、ｎ−ブタンを
脱着させ、脱着された
ｎ−ブタン重量を活性炭７００ｍノに
換算した値。Iodine adsorption crab J engineering 8/≠7≠ n-yyn adsorption amount: Put activated carbon Owtl in an absorption tube and add n-butane in an upward flow at a rate of 21 Otrq/-l! I'm going to sort it. Thereafter, air was flowed in a downward flow at 200 rnl/sequence for 20 minutes to desorb n-butane, and the weight of the desorbed n-butane was converted to 700 m of activated carbon.
実施例３〜μ
実施例１に記述したものと同一炭化物を外熱式のラボロ
ータリーキルンに装入し賦活を実施した。Example 3~μ The same carbide as described in Example 1 was charged into an externally heated laboratory rotary kiln and activated.
賦活には水、炭酸ガス、酸素及び窒素を第２表の割合に
なる様に調整後キルンに装入した。For activation, water, carbon dioxide, oxygen and nitrogen were adjusted to the proportions shown in Table 2 and then charged into the kiln.
炉内の温度は外被炉にて７０００℃になるよう制御した
。The temperature inside the furnace was controlled to 7000°C in the outer furnace.
この様にして得られた活性炭の性能を測定し得られた結
果を第２表に示す。The performance of the activated carbon thus obtained was measured and the results are shown in Table 2.
尚比較のため実施例に用いたものと同じ炭化物を窒素・
水のみを使用する以外は実施例１と同様にして賦活を行
なった。得られた結果を併せ第２表に示す。この表から
明らかな様に、本発明によシ得られた活性炭は吸着性能
に著しい向上が認められた。For comparison, the same carbide used in the example was treated with nitrogen.
Activation was carried out in the same manner as in Example 1 except that only water was used. The obtained results are shown in Table 2. As is clear from this table, the activated carbon obtained according to the present invention showed a remarkable improvement in adsorption performance.
第２表 （註） 苦は水蒸気としての値Table 2 (Note) The value of bitterness as water vapor
Claims (2)
、炭酸ガス並びに酸素ガスの存在下、７００〜１１００
℃の温度に加熱して賦活する方法において、酸素ガス源
として純酸素又は７９容量％より少ない不活性ガスを含
有する酸素含有ガスを使用し、系内の水蒸気濃度及び／
又は炭酸ガス濃度を高水準に保持することを特徴とする
炭化物の賦活方法。(1) Powdered or granular carbide is heated to a temperature of 700 to 1100 in the presence of water vapor and/or carbon dioxide gas and oxygen gas.
In the method of activation by heating to a temperature of
Or a method for activating carbide, which is characterized by maintaining carbon dioxide concentration at a high level.
ガスを含有する酸素含有ガスであることを特徴とする特
許請求の範囲第（１）項記載の炭化物の賦活方法。(2) The method for activating carbide according to claim (1), wherein the oxygen-containing gas is an oxygen-containing gas containing less than 50% by volume of an inert gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59275250A JPS61151012A (en) | 1984-12-25 | 1984-12-25 | Method of activating carbide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59275250A JPS61151012A (en) | 1984-12-25 | 1984-12-25 | Method of activating carbide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61151012A true JPS61151012A (en) | 1986-07-09 |
| JPH0549606B2 JPH0549606B2 (en) | 1993-07-26 |
Family
ID=17552785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59275250A Granted JPS61151012A (en) | 1984-12-25 | 1984-12-25 | Method of activating carbide |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61151012A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63134510A (en) * | 1986-11-27 | 1988-06-07 | Nippon Enji Kk | Activation of activated carbon |
| EP0643014A1 (en) * | 1993-09-14 | 1995-03-15 | Kuraray Chemical Co., Ltd. | Deodorant comprising metal oxide-carrying activated carbon |
| US6475461B1 (en) | 1995-03-30 | 2002-11-05 | Nippon Sanso Corporation | Porous carbonaceous material, manufacturing method therefor and use thereof |
| US6491810B1 (en) | 2000-11-01 | 2002-12-10 | Warden W. Mayes, Jr. | Method of producing synthesis gas from a regeneration of spent cracking catalyst |
| CN1120746C (en) * | 2000-09-14 | 2003-09-10 | 中国科学院山西煤炭化学研究所 | Process for preparing SO2 desulfurizing agent-activated coke |
| US6913687B2 (en) | 2000-11-01 | 2005-07-05 | Warden W. Mayes, Jr. | Method of producing synthesis gas from a regeneration of spent cracking catalyst |
| US6916417B2 (en) | 2000-11-01 | 2005-07-12 | Warden W. Mayes, Jr. | Catalytic cracking of a residuum feedstock to produce lower molecular weight gaseous products |
| DE102007050971B4 (en) * | 2007-03-14 | 2014-12-31 | BLüCHER GMBH | Process for the preparation of high performance adsorbents based on activated carbon with high meso- and macroporosity, high performance adsorbents and their use |
| JP2015526372A (en) * | 2012-07-27 | 2015-09-10 | ハンワ ケミカル コーポレイション | Porous carbon and method for producing the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6028821A (en) * | 1983-07-26 | 1985-02-14 | Sumitomo Heavy Ind Ltd | Manufacture of carbonaceous adsorbent |
-
1984
- 1984-12-25 JP JP59275250A patent/JPS61151012A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6028821A (en) * | 1983-07-26 | 1985-02-14 | Sumitomo Heavy Ind Ltd | Manufacture of carbonaceous adsorbent |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63134510A (en) * | 1986-11-27 | 1988-06-07 | Nippon Enji Kk | Activation of activated carbon |
| EP0643014A1 (en) * | 1993-09-14 | 1995-03-15 | Kuraray Chemical Co., Ltd. | Deodorant comprising metal oxide-carrying activated carbon |
| US6475461B1 (en) | 1995-03-30 | 2002-11-05 | Nippon Sanso Corporation | Porous carbonaceous material, manufacturing method therefor and use thereof |
| CN1120746C (en) * | 2000-09-14 | 2003-09-10 | 中国科学院山西煤炭化学研究所 | Process for preparing SO2 desulfurizing agent-activated coke |
| US6491810B1 (en) | 2000-11-01 | 2002-12-10 | Warden W. Mayes, Jr. | Method of producing synthesis gas from a regeneration of spent cracking catalyst |
| US6913687B2 (en) | 2000-11-01 | 2005-07-05 | Warden W. Mayes, Jr. | Method of producing synthesis gas from a regeneration of spent cracking catalyst |
| US6916417B2 (en) | 2000-11-01 | 2005-07-12 | Warden W. Mayes, Jr. | Catalytic cracking of a residuum feedstock to produce lower molecular weight gaseous products |
| DE102007050971B4 (en) * | 2007-03-14 | 2014-12-31 | BLüCHER GMBH | Process for the preparation of high performance adsorbents based on activated carbon with high meso- and macroporosity, high performance adsorbents and their use |
| US10532071B2 (en) | 2007-03-14 | 2020-01-14 | BLüCHER GMBH | High-performance adsorbents based on activated carbon having high meso- and macroporosity |
| JP2015526372A (en) * | 2012-07-27 | 2015-09-10 | ハンワ ケミカル コーポレイション | Porous carbon and method for producing the same |
| US9919924B2 (en) | 2012-07-27 | 2018-03-20 | Hanwha Chemical Corporation | Porous carbon and method of preparing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0549606B2 (en) | 1993-07-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |