JPH0780056A - Deodorizing method - Google Patents
Deodorizing methodInfo
- Publication number
- JPH0780056A JPH0780056A JP5252478A JP25247893A JPH0780056A JP H0780056 A JPH0780056 A JP H0780056A JP 5252478 A JP5252478 A JP 5252478A JP 25247893 A JP25247893 A JP 25247893A JP H0780056 A JPH0780056 A JP H0780056A
- Authority
- JP
- Japan
- Prior art keywords
- activated carbon
- honeycomb
- metal oxide
- molding
- atmosphere
- 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
- 238000000034 method Methods 0.000 title claims description 22
- 230000001877 deodorizing effect Effects 0.000 title claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 163
- 239000007789 gas Substances 0.000 claims abstract description 48
- 229910052751 metal Inorganic materials 0.000 claims abstract description 29
- 239000002184 metal Substances 0.000 claims abstract description 29
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 239000002781 deodorant agent Substances 0.000 claims abstract description 7
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 5
- 239000011575 calcium Substances 0.000 claims abstract description 5
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 5
- 239000011651 chromium Substances 0.000 claims abstract description 5
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 5
- 239000010941 cobalt Substances 0.000 claims abstract description 5
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052802 copper Inorganic materials 0.000 claims abstract description 5
- 239000010949 copper Substances 0.000 claims abstract description 5
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 5
- 239000011777 magnesium Substances 0.000 claims abstract description 5
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims abstract description 5
- 150000002739 metals Chemical class 0.000 claims abstract description 5
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000011701 zinc Substances 0.000 claims abstract description 4
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 4
- 229910044991 metal oxide Inorganic materials 0.000 claims description 26
- 150000004706 metal oxides Chemical class 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000001569 carbon dioxide Substances 0.000 claims description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 5
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 abstract description 35
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 abstract description 30
- 239000003054 catalyst Substances 0.000 abstract description 9
- 230000003213 activating effect Effects 0.000 abstract description 8
- 238000000465 moulding Methods 0.000 abstract description 8
- 238000010000 carbonizing Methods 0.000 abstract description 2
- 230000001590 oxidative effect Effects 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 abstract 4
- 230000003197 catalytic effect Effects 0.000 description 18
- 230000003647 oxidation Effects 0.000 description 16
- 238000007254 oxidation reaction Methods 0.000 description 16
- 230000004913 activation Effects 0.000 description 15
- 230000000052 comparative effect Effects 0.000 description 11
- 150000003839 salts Chemical class 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 239000003245 coal Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 125000004430 oxygen atom Chemical group O* 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 235000011054 acetic acid Nutrition 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- -1 inorganic acid salt Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 229940062057 nitrogen 80 % Drugs 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Catalysts (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は脱臭方法に関するもの
で、更に詳しく述べると、特定の方法で得られたハニカ
ム状活性炭を、特定条件で処理した一種またはそれ以上
の金属酸化物を添着した活性炭を使用して、メチルメル
カプタン、トリメチルアミン等の悪臭ガスを除去する方
法である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deodorizing method. More specifically, the honeycomb-like activated carbon obtained by a specific method is treated under specific conditions and activated carbon containing one or more metal oxides is impregnated. Is used to remove odorous gases such as methyl mercaptan and trimethylamine.
【０００２】[0002]
【従来の技術】活性炭や酸性物質添着吸着剤、セラミッ
クス担体に金属酸化物を担持した脱臭剤を使用して、メ
チルメルカプタン、トリメチルアミンなどの悪臭ガスを
除去する方法はよく知られているが、主としてそれらの
吸着作用を利用する場合は一般に吸着剤の寿命が短い。
セラミックス担体の場合は、性能が悪く副反応生成物も
多いという欠点があった。従来は粉末状や粒状の活性炭
を担体とする場合が殆どであり、長期間の脱臭機能を保
持させることがが困難である等の問題があった。2. Description of the Related Art A method for removing malodorous gases such as methyl mercaptan and trimethylamine by using activated carbon, an adsorbent impregnated with an acidic substance, or a deodorant in which a metal oxide is supported on a ceramic carrier is well known. When utilizing these adsorption effects, the life of the adsorbent is generally short.
In the case of a ceramic carrier, there is a drawback that the performance is poor and there are many side reaction products. In the past, powdery or granular activated carbon was mostly used as a carrier, and there was a problem that it was difficult to maintain a deodorizing function for a long period of time.
【０００３】また、従来からあるハニカム状のセラミッ
クスに金属酸化物を添着するという方法では、担体とな
るセラミックハニカムの比表面積が小さいため、金属酸
化物の添着量を多くすることが困難で、高活性の金属酸
化物担持活性炭は得られなかった。また副反応により有
害な悪臭物質を生成し易いという問題点があった。Further, according to the conventional method of impregnating the metal oxide to the honeycomb-shaped ceramics, it is difficult to increase the amount of the metal oxide to be impregnated because the specific surface area of the ceramic honeycomb as a carrier is small. No active metal oxide-supported activated carbon was obtained. Further, there is a problem that harmful odorous substances are easily generated by the side reaction.
【０００４】例えば、室内用の空気清浄器や冷蔵庫の脱
臭用にフィルターとして使用する場合、従来からある粒
状の活性炭に金属酸化物を添着したものでは不適当であ
った。それは活性炭をカラムや容器に充填して使用する
必要があり、この場合圧損失が高くガスを高速で通過さ
せることが困難であったからである。For example, when used as a filter for deodorizing an indoor air purifier or a refrigerator, it has been unsuitable to use a conventional granular activated carbon impregnated with a metal oxide. This is because it is necessary to fill the column or container with activated carbon before use, and in this case the pressure loss is high and it was difficult to pass the gas at a high speed.
【０００５】従って、この様なフィルターに使用する場
合、メチルメルカプタン、トリメチルアミンなどの悪臭
ガスを低濃度でも充分に除去出来る様な、高性能で且つ
圧損失が低い脱臭方法が知られていなかった。Therefore, when used in such a filter, a deodorizing method having a high performance and a low pressure loss, which can sufficiently remove a malodorous gas such as methyl mercaptan and trimethylamine even at a low concentration, has not been known.
【０００６】[0006]
【発明が解決しようとする課題】本発明は前述の問題点
に鑑み、低温で希薄なメチルメルカプタン、トリメチル
アミン等の悪臭ガスを除去するため、ガスを高速で酸化
触媒中を通過させても圧損失が低く、悪臭ガスを充分に
除去出来る様な、酸化触媒性が高い脱臭剤により室内用
の空気清浄器や冷蔵庫の脱臭方法を提供しようとするも
のである。In view of the above problems, the present invention removes a malodorous gas such as methyl mercaptan and trimethylamine, which is dilute at a low temperature, and therefore a pressure loss is caused even when the gas is passed through the oxidation catalyst at a high speed. Therefore, the present invention aims to provide a deodorizing method for indoor air purifiers and refrigerators by using a deodorizing agent having a high oxidation catalytic property and capable of sufficiently removing malodorous gas.
【０００７】[0007]
【課題を解決するための手段】本発明者は、低温で希薄
なメチルメルカプタン、トリメチルアミンなどの悪臭ガ
スを除去するため、例えば冷蔵庫や室内用の空気清浄器
に使用出来る、圧損失が低く触媒性が優れた金属酸化物
を担持させるハニカム状活性炭について種々検討した。
その結果、特定のプロセスを経て作られた高活性な脱臭
触媒性を有するハニカム状活性炭により、０〜40℃で10
ppm 程度の低濃度のメチルメルカプタン、トリメチルア
ミン等の悪臭ガスが、充分に酸化除去出来ることを見出
し、これに基づいて本発明方法に到達した。Means for Solving the Problems The present inventor can remove a malodorous gas such as methyl mercaptan and trimethylamine, which are dilute at a low temperature, and can be used in, for example, a refrigerator or an air purifier for indoor use, which has a low pressure loss and a catalytic property. Various studies were carried out on the honeycomb-shaped activated carbon supporting the excellent metal oxide.
As a result, the honeycomb-like activated carbon having a highly active deodorizing catalytic property produced through a specific process can be used for 10 to 40 ° C.
It was found that malodorous gases such as methyl mercaptan and trimethylamine at low concentrations of about ppm can be sufficiently oxidized and removed, and the method of the present invention was reached based on this.
【０００８】すなわち、炭素質原料をハニカム状に成型
して炭化し、水蒸気含有率15容量％以下の雰囲気で賦活
した後、そのままの雰囲気で300 ℃以下まで冷却し、
鉄、クロム、ニッケル、コバルト、マンガン、銅、亜
鉛、マグネシウム及びカルシウムよりなる群より選ばれ
た一種またはそれ以上の金属を含む酸化物を、0.1 〜20
重量％担持せしめてなる金属酸化物添着活性炭を脱臭剤
として用いることを特徴とする脱臭方法である。また通
常の方法で得られたハニカム状活性炭を実質的に酸素ま
たは／及び水蒸気を含まない窒素ガスまたは／及び炭酸
ガス中で約500 ℃以上で処理した後、前述の方法で冷却
・金属添着をした脱臭剤として用いることも出来る。That is, a carbonaceous raw material is formed into a honeycomb shape and carbonized, activated in an atmosphere having a water vapor content of 15% by volume or less, and then cooled to 300 ° C. or less in the same atmosphere,
An oxide containing one or more metals selected from the group consisting of iron, chromium, nickel, cobalt, manganese, copper, zinc, magnesium and calcium is added in an amount of 0.1 to 20.
The deodorizing method is characterized in that metal oxide-impregnated activated carbon supported by weight% is used as a deodorant. Further, the honeycomb-like activated carbon obtained by the usual method is treated at a temperature of about 500 ° C. or higher in nitrogen gas and / or carbon dioxide gas substantially free of oxygen and / or steam, and then cooled and metal-impregnated by the above-mentioned method. It can also be used as a deodorant.
【０００９】ここで「通常の方法で得られたハニカム状
活性炭」とは、通常活性炭を製造する場合に採用されて
いる水蒸気含有率が高い雰囲気で賦活して得られたハニ
カム状活性炭を言う。また、「実質的に酸素または／及
び水蒸気を含まない」とは、賦活後の活性炭の熱処理に
おいて活性炭表面に結合した酸素原子が存在しないよう
な雰囲気の意味で、酸素及び水蒸気が１〜２％以下の状
態をいう。Here, the "honeycomb-like activated carbon obtained by a usual method" refers to a honeycomb-like activated carbon obtained by activating in an atmosphere having a high water vapor content, which is usually adopted when producing activated carbon. Further, "substantially free of oxygen and / or water vapor" means an atmosphere in which oxygen atoms bonded to the surface of activated carbon do not exist in the heat treatment of activated carbon after activation, and oxygen and water vapor are 1 to 2%. Refers to the following conditions.
【００１０】以下本発明について詳しく説明する。The present invention will be described in detail below.
【００１１】本発明において用いられるハニカム状活性
炭は、炭素質原料としてやし殻炭、石炭等広範囲の炭素
質原料が使用可能である。これらの原料にフェノール樹
脂、タール、ピッチなどのバインダーを加えてハニカム
状に成型・炭化した後、本発明の特定な方法で賦活する
ことにより得られる。The honeycomb-shaped activated carbon used in the present invention can use a wide range of carbonaceous raw materials such as palm shell coal and coal as carbonaceous raw materials. It can be obtained by adding a binder such as phenol resin, tar or pitch to these raw materials, molding and carbonizing into a honeycomb shape, and then activating by a specific method of the present invention.
【００１２】この際賦活ガスは水蒸気の他、二酸化炭素
ガスを含むが、水蒸気含有率は15％以下とする必要があ
る。通常使用されている活性炭賦活用ガスの組成は水蒸
気40〜60％で、それより高い場合も多い。水蒸気による
炭素質の賦活速度は二酸化炭素ガスより著しく速いた
め、通常の活性炭を製造する場合は、賦活ガスの組成は
水蒸気分圧がなるべく高くなる様に設定されている。従
って本発明の条件は、通常の方法に較べて著しく賦活速
度を遅くしたマイルドな条件になっている。実施例37、
38及び比較例15〜17、18〜20、表９、表10に示すように
水蒸気含有率が高い条件下で賦活された場合は、明らか
にメチルメルカプタン、トリメチルアミン等の悪臭ガス
の酸化触媒性が低下していることが分かる。水蒸気含有
率が低い賦活条件が活性炭の酸化触媒能を向上させる機
構の詳細は明らかでないが、かかる条件下で得られたハ
ニカム状活性炭は、その表面に結合した酸素原子が存在
しない状態になっていることが指摘されている。At this time, the activating gas contains not only water vapor but also carbon dioxide gas, but the water vapor content must be 15% or less. The composition of the activated carbon activating gas that is usually used is 40-60% of steam, and in many cases it is higher than that. Since the rate of activation of carbonaceous matter by water vapor is remarkably faster than that of carbon dioxide gas, the composition of the activation gas is set so that the partial pressure of water vapor is as high as possible when ordinary activated carbon is produced. Therefore, the condition of the present invention is a mild condition in which the activation rate is remarkably slowed as compared with the usual method. Example 37,
38 and Comparative Examples 15 to 17, 18 to 20 and Tables 9 and 10, when activated under the condition that the water vapor content is high, the oxidation catalytic property of malodorous gases such as methyl mercaptan and trimethylamine is obviously high. You can see that it is decreasing. The details of the mechanism by which the activation condition with a low water vapor content improves the oxidation catalytic activity of activated carbon are not clear, but the honeycomb-shaped activated carbon obtained under such conditions is in a state where oxygen atoms bound to its surface do not exist. It is pointed out that there is.
【００１３】本発明の活性炭の比表面積は500m2/g 以上
であることが好ましく、800m2/g 以上であればより好ま
しい。ハニカム活性炭の比表面積及びセル数と酸化触媒
性の関係は、実施例７〜28及び表３、表４に示す様に、
メチルメルカプタン、トリメチルアミン等の悪臭ガスに
対して、セル数が多い程また比表面積が大きい程触媒性
が高くなることが分かる。The specific surface area of the activated carbon of the present invention is preferably 500 m 2 / g or more, more preferably 800 m 2 / g or more. The relationship between the specific surface area and the number of cells of the honeycomb activated carbon and the oxidation catalytic property is as shown in Examples 7 to 28 and Tables 3 and 4,
It can be seen that with respect to malodorous gases such as methyl mercaptan and trimethylamine, the larger the number of cells and the larger the specific surface area, the higher the catalytic activity.
【００１４】通常のハニカム状活性炭は、ハニカム状に
成型した炭素質原料を水蒸気、燃焼ガス等水蒸気含有率
が高い雰囲気で賦活することにより製造されているが、
かかる活性炭を本発明に使用しても、充分な酸化触媒性
を示さない。本発明の効果は前述の様な特定の組成のガ
スで賦活された、ハニカム状活性炭を用いることによっ
て初めて得られるものである。Ordinary honeycomb-shaped activated carbon is produced by activating a honeycomb-shaped carbonaceous raw material in an atmosphere having a high water vapor content such as steam or combustion gas.
Even when such activated carbon is used in the present invention, it does not show sufficient oxidation catalytic properties. The effect of the present invention can be obtained for the first time by using the honeycomb-shaped activated carbon activated by the gas having the specific composition as described above.
【００１５】この様にして得られた活性炭に金属酸化物
を添着すれば、メチルメルカプタン、トリメチルアミン
等の悪臭ガスを速やかに酸化する強い触媒性を示す。し
かしながら、本発明の賦活されたハニカム状活性炭を高
温のまま系外へ取り出し、水蒸気、水素ガス、あるいは
酸素ガスを多量に含む雰囲気中に放置すれば、酸化触媒
としての能力が著しく低下する。When the activated carbon thus obtained is impregnated with a metal oxide, it exhibits a strong catalytic property for promptly oxidizing malodorous gases such as methyl mercaptan and trimethylamine. However, if the activated honeycomb-like activated carbon of the present invention is taken out of the system at a high temperature and left in an atmosphere containing a large amount of water vapor, hydrogen gas, or oxygen gas, the ability as an oxidation catalyst is significantly reduced.
【００１６】賦活後においても、賦活ガスと同様のガス
のもとで活性炭を温度300 ℃以下に冷却し、その後系外
に取り出すことが必要である。冷却時の雰囲気は本発明
の活性炭の賦活時に使用出来る窒素ガス、炭酸ガスまた
はこれらの混合ガス（酸素、水素、水蒸気の含有量は規
定量以下）であればよく、その活性炭の賦活に用いたガ
スと冷却に用いたガスとは必ずしも同一組成のものでな
くてもよい。本発明において「そのままの雰囲気で冷
却」するとは前記の様な意味である。Even after activation, it is necessary to cool the activated carbon to a temperature of 300 ° C. or lower under the same gas as the activation gas and then take it out of the system. The atmosphere during cooling may be nitrogen gas, carbon dioxide gas, or a mixed gas thereof (oxygen, hydrogen, and water vapor content not more than a specified amount) that can be used during activation of the activated carbon of the present invention, and it was used for activation of the activated carbon. The gas and the gas used for cooling do not necessarily have to have the same composition. In the present invention, "cooling in the same atmosphere" has the above meaning.
【００１７】賦活後の活性炭を300 ℃以上で空気中に取
り出すと、低温低濃度における酸化触媒としての能力が
著しく低下する。賦活後窒素ガス中で冷却した場合と、
空気中で冷却した場合の触媒性に及ぼす影響を、実施例
29〜32、比較例７〜10及び表５、表６に示す。また賦活
後活性炭が空気に触れる温度が触媒性に及ぼす影響につ
いては、実施例33〜36、比較例11〜14及び表７、表８に
示す。When activated carbon after activation is taken out into the air at 300 ° C. or higher, its ability as an oxidation catalyst at a low temperature and a low concentration is remarkably reduced. When cooled in nitrogen gas after activation,
The effect on the catalytic properties when cooled in air is shown in Example.
29 to 32, Comparative Examples 7 to 10 and Tables 5 and 6. The effects of the temperature of activated carbon contacting air after activation on the catalytic properties are shown in Examples 33 to 36, Comparative Examples 11 to 14 and Tables 7 and 8.
【００１８】更に本発明においては、空気などに触れて
表面が酸化され酸化触媒性が低下した廃ハニカム状活性
炭或いは、通常の方法により製造されたハニカム状活性
炭を前述の賦活ガスと同組成のガス中で、温度500 ℃以
上で処理し、該ガス中で温度300 ℃以下に冷却すること
によって得られるハニカム状活性炭も、前述のハニカム
状活性炭と同様に、メチルメルカプタン、トリメチルア
ミン等の悪臭ガスに対する高い酸化触媒性を示してい
る。換言すれば、この熱処理によってハニカム状活性炭
に高い酸化触媒性が付与される。この熱処理が適用され
るハニカム状活性炭は、石炭、やし殻炭等いかなる原料
から得られたものでもよく、またその形状は特に限定し
ない。Further, in the present invention, waste honeycomb-like activated carbon whose surface is oxidized by exposure to air or the like to reduce its oxidation catalytic property, or honeycomb-like activated carbon produced by a usual method is used as a gas having the same composition as the above-mentioned activating gas. In the same manner as the above-mentioned honeycomb-shaped activated carbon, the honeycomb-shaped activated carbon obtained by treating at a temperature of 500 ° C or higher and cooling in the gas to a temperature of 300 ° C or less has a high resistance to malodorous gases such as methyl mercaptan and trimethylamine. It shows an oxidation catalytic property. In other words, this heat treatment gives the honeycomb-like activated carbon a high oxidation catalytic property. The honeycomb-shaped activated carbon to which this heat treatment is applied may be obtained from any raw material such as coal or coconut shell coal, and its shape is not particularly limited.
【００１９】通常の方法で得られたハニカム状活性炭
は、いずれもこの方法で処理することにより、本発明の
酸化触媒として使用可能なハニカム状活性炭が得られ
る。その際、処理温度は500 ℃以上とする必要がある。
処理時間は温度によって変わるが、500 ℃の場合は通
常、20〜180 分が好ましく、800 ℃では数分の処理によ
って充分その効果が得られる。熱処理温度が酸化触媒性
に及ぼす影響については、実施例２、３、５、６、比較
例１，４及び表１、表２に示す。By treating any of the honeycomb-like activated carbons obtained by the usual method by this method, the honeycomb-like activated carbon usable as the oxidation catalyst of the present invention can be obtained. At that time, the processing temperature must be 500 ° C or higher.
The treatment time varies depending on the temperature, but in the case of 500 ° C., it is usually preferably 20 to 180 minutes, and at 800 ° C., the effect can be sufficiently obtained by treating for a few minutes. The effects of the heat treatment temperature on the oxidation catalytic property are shown in Examples 2, 3, 5, 6 and Comparative Examples 1 and 4 and Tables 1 and 2.
【００２０】本発明のハニカム状活性炭には鉄、クロ
ム、ニッケル、コバルト、マンガン、銅、マグネシウ
ム、或いはカルシウムの中１種または２種以上の金属を
含む金属酸化物を添着する必要がある。It is necessary to impregnate the honeycomb-shaped activated carbon of the present invention with a metal oxide containing one or more metals selected from iron, chromium, nickel, cobalt, manganese, copper, magnesium or calcium.
【００２１】また金属酸化物の添着量は、0.1 〜20％添
着させる必要がある。活性炭に金属酸化物を添着するに
は、水溶性の金属塩、たとえば塩酸塩、硝酸塩、硫酸
塩、炭酸塩等の無機酸塩や蟻酸、酢酸、プロピオン酸等
の有機酸の塩を水溶液にして活性炭に添着した後、150
℃以上の温度で熱分解することにより容易に得られる。
金属塩の対イオンの酸濃度が0.1 〜３規定、好ましくは
0.5 〜１規定の酸水溶液に所定量の金属塩を溶解し、こ
の溶液にハニカム状活性炭を入れて攪拌し、金属塩を充
分吸着させた後、液切りして200 ℃で乾燥し熱分解す
る。金属酸化物の担持量は0.1 〜20％とする必要がある
が、担持量が0.5 〜10％の場合がより好ましい。The amount of the metal oxide to be attached should be 0.1 to 20%. To attach a metal oxide to activated carbon, a water-soluble metal salt, for example, an inorganic acid salt such as hydrochloride, nitrate, sulfate, carbonate or a salt of an organic acid such as formic acid, acetic acid or propionic acid is formed into an aqueous solution. 150 after impregnated with activated carbon
It is easily obtained by thermal decomposition at a temperature of ℃ or higher.
The acid concentration of the counterion of the metal salt is 0.1 to 3 N, preferably
A predetermined amount of metal salt is dissolved in 0.5 to 1 normal acid aqueous solution, and honeycomb-like activated carbon is added to this solution and stirred to sufficiently adsorb the metal salt, drained, dried at 200 ° C and pyrolyzed. . The supported amount of the metal oxide needs to be 0.1 to 20%, but the supported amount is more preferably 0.5 to 10%.
【００２２】金属酸化物の担持量が0.1 ％以下の場合は
触媒活性が不充分であり、また20％以上になると添着量
が多いわりに触媒性が向上せず、また活性炭自体の吸着
が阻害されることも考慮すれば、添着量は20％以下とす
る必要がある。金属酸化物の担持量の調節は、塩水溶液
中の金属酸化物の量とハニカム活性炭の量との比を変更
する事により行われる。通常、溶液中の金属塩物はほぼ
完全に活性炭に吸着される。また所定濃度の金属塩水溶
液を振りかけ法で活性炭に添着した後、これを熱分解す
ることによっても得られる。When the supported amount of metal oxide is 0.1% or less, the catalytic activity is insufficient, and when it is 20% or more, the catalytic activity is not improved despite the large amount of impregnation, and the adsorption of activated carbon itself is hindered. Taking this into consideration, the amount of impregnation should be 20% or less. The amount of metal oxide supported is adjusted by changing the ratio of the amount of metal oxide in the aqueous salt solution and the amount of honeycomb activated carbon. Usually, the metal salt in the solution is almost completely adsorbed on the activated carbon. It can also be obtained by impregnating activated carbon with an aqueous solution of a metal salt having a predetermined concentration by a sprinkling method and then thermally decomposing it.
【００２３】本発明のハニカム状金属酸化物添着活性炭
は、ハニカム状のため圧損失が極めて低く、また常温あ
るいは低温においても酸化触媒として高い機能を有する
ため、室内用の空気清浄器でメチルメルカプタンなどの
悪臭ガスの除去剤として優れている。Since the honeycomb-shaped metal oxide impregnated activated carbon of the present invention has a honeycomb shape and has a very low pressure loss, and has a high function as an oxidation catalyst even at room temperature or at a low temperature, it can be used in an indoor air purifier such as methyl mercaptan. Excellent as a odorous gas remover.
【００２４】[0024]
【実施例】以下、実施例を挙げて本発明を更に具体的に
説明する。EXAMPLES The present invention will be described in more detail below with reference to examples.
【００２５】（実施例１〜38、比較例１〜19）実施例１
は、300 メッシュ以下に粉砕した石炭100 重量部に対
し、バインダーとしてタールを30重量部添加し、滑り材
を必要量添加し、250 セル/inch2のハニカム状に成型し
た。この成型品をプロパン燃焼ガス（ガス組成：窒素80
％、酸素0.2 ％、炭酸ガス9.8 ％、水蒸気10％）を用い
て、900 ℃で比表面積900m2/g になるまで賦活した後、
該窒素ガス中で300 ℃以下に冷却して、ハニカム状活性
炭担体を得た。(Examples 1 to 38, Comparative Examples 1 to 19) Example 1
For 100 parts by weight of coal pulverized to 300 mesh or less, 30 parts by weight of tar as a binder was added, and a necessary amount of a sliding material was added to form a honeycomb of 250 cells / inch 2 . This molded product was mixed with propane combustion gas (gas composition: nitrogen 80
%, Oxygen 0.2%, carbon dioxide gas 9.8%, water vapor 10%) at 900 ° C until a specific surface area of 900 m 2 / g is reached.
It was cooled to 300 ° C. or lower in the nitrogen gas to obtain a honeycomb-shaped activated carbon carrier.
【００２６】次に比較例１は、実施例１と同様にして比
表面積が900m2/g になるまで賦活した後、活性炭を窒素
中に取り出し、500 ℃になるまで冷却し、更に空気中に
取り出して放置冷却して活性炭担体を得た。更に、比較
例１の活性炭担体を700 ℃、N2 50 ％、CO2 50％、の気
流中で10分間処理した後、窒素中に取り出し、室温まで
冷却して実施例２の活性炭担体を得た。また、比較例１
の活性炭担体を900 ℃窒素中で５分間処理した後、窒素
中で室温まで冷却して実施例３の活性炭担体を得た。Next, Comparative Example 1 was activated in the same manner as in Example 1 until the specific surface area reached 900 m 2 / g, the activated carbon was taken out into nitrogen, cooled to 500 ° C., and further exposed to air. It was taken out and left to cool to obtain an activated carbon carrier. Further, the activated carbon carrier of Comparative Example 1 was treated in a stream of 700 ° C., N 2 50%, CO 2 50% for 10 minutes, then taken out in nitrogen and cooled to room temperature to obtain the activated carbon carrier of Example 2. It was Comparative Example 1
The activated carbon carrier of Example 1 was treated in nitrogen at 900 ° C. for 5 minutes and then cooled to room temperature in nitrogen to obtain the activated carbon carrier of Example 3.
【００２７】これらのハニカム状活性炭に次の様にして
金属酸化物を添着した。金属塩100mgを含む0.5 規定酸
溶液200ml に活性炭担体50g をいれてよく攪拌し、３時
間放置した後、水を切って純水100ml で洗浄し、200 ℃
で乾燥して金属酸化物添着量2.0wt ％の金属酸化物添着
活性炭ハニカムを得た。Metal oxide was impregnated on these honeycomb-shaped activated carbons as follows. Add 50g of activated carbon carrier to 200ml of 0.5N acid solution containing 100mg of metal salt, stir well, leave it for 3 hours, drain water and wash with 100ml of pure water.
And dried to obtain a metal oxide-loaded activated carbon honeycomb having a metal oxide-loaded amount of 2.0 wt%.
【００２８】このようにして得られた金属酸化物添着ハ
ニカム状活性炭10g を1m×1m×1mの箱に入れ、ファンの
上に設置してフィルターとして使用し、メチルメルカプ
タン、トリメチルアミンなどの悪臭ガスの除去テストを
行った。10 g of the metal oxide-impregnated honeycomb-like activated carbon thus obtained was placed in a box of 1 m × 1 m × 1 m, which was placed on a fan and used as a filter to remove odorous gases such as methyl mercaptan and trimethylamine. A removal test was performed.
【００２９】30℃におけるメチルメルカプタンなどの悪
臭ガス除去速度の測定結果を表１、表２に示す。尚比較
例２は実施例１で得られた活性炭担体に金属酸化物を添
着せず、その儘の状態で使用したものであり、比較例３
は市販のハニカム状活性炭に金属酸化物 2.0wt％を添着
して使用したものである。Tables 1 and 2 show the measurement results of the rate of removal of malodorous gases such as methyl mercaptan at 30 ° C. In Comparative Example 2, the activated carbon carrier obtained in Example 1 was used without being impregnated with a metal oxide, and Comparative Example 3 was used.
Is a commercially available honeycomb-like activated carbon to which 2.0 wt% of metal oxide is impregnated.
【００３０】[0030]
【表１】 [Table 1]
【００３１】[0031]
【表２】 [Table 2]
【００３２】本発明のハニカム状金属酸化物添着活性炭
（実施例１〜６）は、いづれもメチルメルカプタン、ト
リメチルアミンなどの悪臭ガスを短時間に完全に除去
し、優れた除去能力を示した。一方比較例（１〜６）に
示す様に、通常のハニカム状活性炭及び本発明以外の方
法により調製されたハニカム状金属酸化物添着活性炭
は、いづれも悪臭ガス除去速度が遅かった。Each of the honeycomb-shaped metal oxide-impregnated activated carbons of the present invention (Examples 1 to 6) completely removed the malodorous gases such as methyl mercaptan and trimethylamine in a short time and showed excellent removal ability. On the other hand, as shown in Comparative Examples (1 to 6), the ordinary honeycomb-shaped activated carbon and the honeycomb-shaped metal oxide-impregnated activated carbon prepared by a method other than the present invention were slow in removing the malodorous gas.
【００３３】セル数、比表面積の異なるハニカム状活性
炭に、実施例１と同様の方法で種々の金属酸化物を添着
して、ハニカム状金属酸化物添着活性炭を得た。これら
のメチルメルカプタン、トリメチルアミンなどの悪臭ガ
ス除去速度の測定結果を表３、表４（実施例７〜28）に
示す。Various metal oxides were impregnated in the same manner as in Example 1 on the honeycomb-shaped activated carbon having different numbers of cells and specific surface areas to obtain honeycomb-shaped metal oxide-impregnated activated carbon. Tables 3 and 4 (Examples 7 to 28) show the measurement results of the removal rates of malodorous gases such as methyl mercaptan and trimethylamine.
【００３４】[0034]
【表３】 [Table 3]
【００３５】[0035]
【表４】 [Table 4]
【００３６】表３、表４に示すように、本発明の金属酸
化物添着ハニカム活性炭はセル数が大きいほど、または
比表面積が大きいほど悪臭ガス除去速度が速い。As shown in Tables 3 and 4, in the metal oxide-impregnated honeycomb activated carbon of the present invention, the larger the number of cells or the larger the specific surface area, the faster the malodorous gas removal rate.
【００３７】表５、６に示す本発明のハニカム状金属酸
化物添着活性炭及び、比較のために調製した金属酸化物
添着ハニカム活性炭各10g を用いて、実施例１と同様の
方法で低温におけるメチルメルカプタン等の悪臭ガス除
去速度を測定した。Using the honeycomb-shaped metal oxide-impregnated activated carbons of the present invention shown in Tables 5 and 6 and the metal oxide-impregnated honeycomb activated carbons prepared for comparison, 10 g each, methyl was prepared at low temperature in the same manner as in Example 1. The removal rate of odorous gases such as mercaptan was measured.
【００３８】その結果及び試料の性状を表５、表６に併
せて示す。The results and the properties of the samples are also shown in Tables 5 and 6.
【００３９】[0039]
【表５】 [Table 5]
【００４０】[0040]
【表６】 [Table 6]
【００４１】表５、表６に示す様に本発明のハニカム状
金属酸化物添着活性炭は、低温でも極めて速やかに悪臭
ガスを除去出来ることが分かる。As shown in Tables 5 and 6, it is understood that the honeycomb-shaped metal oxide-impregnated activated carbon of the present invention can remove the malodorous gas extremely quickly even at a low temperature.
【００４２】実施例１において、賦活したハニカム状活
性炭を取り出す際、N2中で冷却後、空気中に取り出すと
きの温度を変えた活性炭を作り、実施例１と同様の方法
で金属酸化物を所定量添着して、ハニカム状金属酸化物
添着活性炭を得た。これらの活性炭を使用して実施例１
と同様の方法で、悪臭ガス除去速度を測定した。In Example 1, when the activated honeycomb-like activated carbon was taken out, after cooling in N 2 , activated carbon was prepared by changing the temperature when taking out into the air, and metal oxide was prepared in the same manner as in Example 1. A predetermined amount was impregnated to obtain a honeycomb-shaped metal oxide impregnated activated carbon. Example 1 using these activated carbons
The malodorous gas removal rate was measured in the same manner as in.
【００４３】その結果及び使用した活性炭の性状を表
７、表８に併せて示す。The results and the properties of the activated carbon used are shown in Tables 7 and 8.
【００４４】[0044]
【表７】 [Table 7]
【００４５】[0045]
【表８】 [Table 8]
【００４６】表７、表８に示すように、本発明のハニカ
ム状金属酸化物添着活性炭の性能は冷却後初めて空気に
接触する温度に依存し、300 ℃以上では除去能が大幅に
低下することが分かる。As shown in Tables 7 and 8, the performance of the honeycomb-shaped metal oxide-impregnated activated carbon of the present invention depends on the temperature of contact with air for the first time after cooling, and the removal ability is significantly lowered at 300 ° C. or higher. I understand.
【００４７】石炭粉末を成型して作成したハニカムを賦
活する際、賦活ガスの水蒸気分圧が異なる条件で900 ℃
で比表面積1000m2/gになるまで賦活した後、窒素で置換
した容器内にハニカム活性炭を取り出し、該窒素中で30
0 ℃以下に冷却して表９、表10に示すハニカム活性炭を
得た。これらに実施例１と同様の方法で金属酸化物を所
定量添着し、これらのハニカム状金属酸化物添着活性炭
を使用して、実施例１と同様な方法で悪臭ガス除去速度
を測定した。When activating the honeycomb formed by molding the coal powder, the activation gas is heated to 900 ° C. under the condition that the partial pressure of water vapor is different.
After activation up to a specific surface area of 1000 m 2 / g, the honeycomb activated carbon was taken out in a container replaced with nitrogen, and the honeycomb 30
The honeycomb activated carbon shown in Tables 9 and 10 was obtained by cooling to 0 ° C or lower. A predetermined amount of metal oxide was impregnated to these in the same manner as in Example 1, and the odorous gas removal rate was measured in the same manner as in Example 1 using these honeycomb-shaped metal oxide impregnated activated carbons.
【００４８】その結果及び使用した活性炭の性状を表
９、表10に併せて示す。The results and the properties of the activated carbon used are shown in Tables 9 and 10.
【００４９】[0049]
【表９】 [Table 9]
【００５０】[0050]
【表１０】 [Table 10]
【００５１】表９、表10に示すように、本発明のハニカ
ム状金属酸化物添着活性炭の性能は賦活時の水蒸気濃度
に依存し、水蒸気濃度が15％以下の場合に高い触媒性を
示すことが認められる。As shown in Tables 9 and 10, the performance of the honeycomb-shaped metal oxide-impregnated activated carbon of the present invention depends on the water vapor concentration at the time of activation, and exhibits high catalytic properties when the water vapor concentration is 15% or less. Is recognized.
【００５２】[0052]
【発明の効果】本発明のハニカム状金属酸化物添着活性
炭は、ハニカム状のため圧損失が極めて低く、また常温
或いは低温においても酸化触媒として高い機能を有する
ため、メチルメルカプタン、トリメチルアミン等の悪臭
ガスの酸化除去能力に優れている。EFFECT OF THE INVENTION Since the honeycomb-shaped metal oxide-impregnated activated carbon of the present invention has a honeycomb shape and has a very low pressure loss, and has a high function as an oxidation catalyst even at room temperature or at a low temperature, a malodorous gas such as methyl mercaptan or trimethylamine can be obtained. It has excellent oxidation removal ability.
【００５３】この特性を利用した冷蔵庫内の脱臭剤や、
室内用の空気清浄器の悪臭ガスの除去剤に適している。A deodorant in a refrigerator utilizing this characteristic,
Suitable for removing malodorous gas from indoor air purifiers.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ０１Ｊ 20/20 Ｄ 7202−4Ｇ 21/18 ＺＡＢ Ａ 8017−4Ｇ 23/34 ＺＡＢ Ａ 8017−4Ｇ 23/72 ＺＡＢ Ａ 8017−4Ｇ 23/74 ＺＡＢ Ａ 8017−4Ｇ 23/84 ＺＡＢ 8017−4Ｇ 23/889 35/04 ＺＡＢ 8017−4Ｇ ３０１ Ｐ 8017−4Ｇ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical display location B01J 20/20 D 7202-4G 21/18 ZAB A 8017-4G 23/34 ZAB A 8017-4G 23 / 72 ZAB A 8017-4G 23/74 ZAB A 8017-4G 23/84 ZAB 8017-4G 23/889 35/04 ZAB 8017-4G 301 P 8017-4G
Claims (2)
し、水蒸気含有率15容量％以下の雰囲気で賦活した後、
そのままの雰囲気で300 ℃以下まで冷却し、鉄、クロ
ム、ニッケル、コバルト、マンガン、銅、亜鉛、マグネ
シウム及びカルシウムよりなる群より選ばれた一種また
はそれ以上の金属を含む酸化物を、0.1〜20重量％担持
せしめてなる金属酸化物添着活性炭を脱臭剤として用い
ることを特徴とする脱臭方法。1. A carbonaceous raw material is formed into a honeycomb shape, carbonized, and activated in an atmosphere having a water vapor content of 15% by volume or less,
Cool to 300 ° C or less in the same atmosphere, and remove an oxide containing one or more metals selected from the group consisting of iron, chromium, nickel, cobalt, manganese, copper, zinc, magnesium and calcium in an amount of 0.1 to 20. A deodorizing method comprising using a metal oxide-impregnated activated carbon supported by weight% as a deodorant.
を実質的に酸素または／及び水蒸気を含まない窒素ガス
または／及び炭酸ガス中で約500 ℃以上で処理し、その
ままの雰囲気で300 ℃以下まで冷却し、鉄、クロム、ニ
ッケル、コバルト、マンガン、銅、亜鉛、マグネシウム
及びカルシウムよりなる群より選ばれた一種またはそれ
以上の金属を含む酸化物を、0.1 〜20重量％担持せしめ
てなる金属酸化物添着活性炭を脱臭剤として用いること
を特徴とする脱臭方法。2. A honeycomb-shaped activated carbon obtained by a usual method is treated at a temperature of about 500 ° C. or higher in nitrogen gas and / or carbon dioxide gas substantially free of oxygen and / or water vapor, and kept at 300 ° C. in the same atmosphere. After cooling to below, 0.1 to 20% by weight of an oxide containing one or more metals selected from the group consisting of iron, chromium, nickel, cobalt, manganese, copper, zinc, magnesium and calcium is supported. A deodorizing method comprising using activated carbon impregnated with a metal oxide as a deodorant.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25247893A JP3357137B2 (en) | 1993-09-14 | 1993-09-14 | Deodorization method |
| DE69412398T DE69412398T2 (en) | 1993-09-14 | 1994-09-13 | Deodorant containing metal oxide and containing activated carbon |
| EP94114368A EP0643014B1 (en) | 1993-09-14 | 1994-09-13 | Deodorant comprising metal oxide-carrying activated carbon |
| US08/305,598 US5948398A (en) | 1993-09-14 | 1994-09-14 | Deodorant comprising metal oxide-carrying activated carbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25247893A JP3357137B2 (en) | 1993-09-14 | 1993-09-14 | Deodorization method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0780056A true JPH0780056A (en) | 1995-03-28 |
| JP3357137B2 JP3357137B2 (en) | 2002-12-16 |
Family
ID=17237945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25247893A Expired - Fee Related JP3357137B2 (en) | 1993-09-14 | 1993-09-14 | Deodorization method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3357137B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002540913A (en) * | 1999-04-06 | 2002-12-03 | インスティトゥート フィア ノイエ マテリアーリエン ゲマインニュッツィゲ ゲゼルシャフト ミット ベシュレンクタ ハフトゥンク | Silane-based coating materials with catalytic oxidation and deodorization effects |
| JP2007209833A (en) * | 2005-10-21 | 2007-08-23 | Matsushita Electric Ind Co Ltd | Catalyst material |
| JP2008055404A (en) * | 2006-08-01 | 2008-03-13 | Mitsubishi Electric Corp | Air treatment apparatus |
| JP2008530311A (en) * | 2005-02-16 | 2008-08-07 | ミードウエストベコ・コーポレーション | Adsorbent paint formulation |
| CN112619411A (en) * | 2020-12-14 | 2021-04-09 | 陕西科技大学 | Preparation method and application of air purification material taking fiber bundles as base material |
-
1993
- 1993-09-14 JP JP25247893A patent/JP3357137B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002540913A (en) * | 1999-04-06 | 2002-12-03 | インスティトゥート フィア ノイエ マテリアーリエン ゲマインニュッツィゲ ゲゼルシャフト ミット ベシュレンクタ ハフトゥンク | Silane-based coating materials with catalytic oxidation and deodorization effects |
| JP4878678B2 (en) * | 1999-04-06 | 2012-02-15 | ライプニッツ−インスティトゥート フィア ノイエ マテリアーリエン ゲマインニュッツィゲ ゲゼルシャフト ミット ベシュレンクタ ハフトゥンク | Silane-based coating materials with catalytic oxidation and deodorization effects |
| JP2008530311A (en) * | 2005-02-16 | 2008-08-07 | ミードウエストベコ・コーポレーション | Adsorbent paint formulation |
| JP2007209833A (en) * | 2005-10-21 | 2007-08-23 | Matsushita Electric Ind Co Ltd | Catalyst material |
| JP2008055404A (en) * | 2006-08-01 | 2008-03-13 | Mitsubishi Electric Corp | Air treatment apparatus |
| CN112619411A (en) * | 2020-12-14 | 2021-04-09 | 陕西科技大学 | Preparation method and application of air purification material taking fiber bundles as base material |
| CN112619411B (en) * | 2020-12-14 | 2023-08-25 | 山东飞薄新材料科技有限公司 | Preparation method and application of air purification material with fiber bundles as base material |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3357137B2 (en) | 2002-12-16 |
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