JPS6168136A - Adsorbent and its production - Google Patents
Adsorbent and its productionInfo
- Publication number
- JPS6168136A JPS6168136A JP59189868A JP18986884A JPS6168136A JP S6168136 A JPS6168136 A JP S6168136A JP 59189868 A JP59189868 A JP 59189868A JP 18986884 A JP18986884 A JP 18986884A JP S6168136 A JPS6168136 A JP S6168136A
- Authority
- JP
- Japan
- Prior art keywords
- adsorbent
- activated carbon
- ammonia
- iodine
- sulfuric acid
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Treating Waste Gases (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、脱臭または空気清浄等に用いる吸着剤および
その製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an adsorbent used for deodorization or air purification, and a method for producing the same.
従来の技術
従来、吸着法による脱臭くは、ここにあえて具体例をあ
げるまでもなく、椰子殻活性炭が各種脱臭剤、空気清浄
剤として広く用いられている。BACKGROUND OF THE INVENTION Conventionally, coconut shell activated carbon has been widely used as various deodorizing agents and air purifiers for deodorizing by adsorption methods, although there is no need to mention specific examples here.
発明が解決しようとする問題点
ところが、椰子殻活性炭では、低分子量、低沸点、極性
化合物であるアンモニアをほとんど除去できないので、
アンモニアが主な臭気物質である臭気にはほとんど脱臭
効果がない。Problems to be Solved by the Invention However, coconut shell activated carbon can hardly remove ammonia, which is a low molecular weight, low boiling point, and polar compound.
There is almost no deodorizing effect on odors whose main odor substance is ammonia.
このため、従来においても、ある種の酸を添着させてア
ンモニア除去性能を向上させた吸着剤が開発され、実用
化されているが、吸着剤の寿命が短く、価格が高い欠点
があり、しかもガスと吸着剤との接触時間を長（とらな
ければならず、フィルタ化など装置の＝ンパクト化が困
難であった。For this reason, adsorbents with improved ammonia removal performance impregnated with a certain type of acid have been developed and put into practical use, but they have the drawbacks of short lifespan and high price. This required a long contact time between the gas and the adsorbent, making it difficult to make the device more compact, such as by using filters.
そこで、本発明は、従来のアンモニア用吸着剤に対して
著しく吸着性能がすぐれ、しかも長寿命で低価格な吸着
剤、およびその製造方法を提供することを目的とするも
のである。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an adsorbent that has significantly superior adsorption performance compared to conventional ammonia adsorbents, has a long life, and is inexpensive, and a method for producing the same.
問題点を解決するための手段
本発明は、上記目的を達成するため、その技術的手段と
して次のように構成した。すなわち、吸着剤として、
活性炭に硫酸およびヨウ素のオキソ酸を添着させてなる
ことを特徴とする吸着剤。Means for Solving the Problems In order to achieve the above object, the present invention has the following technical means. That is, the adsorbent is characterized in that the adsorbent is made by impregnating activated carbon with oxoacids of sulfuric acid and iodine.
また、吸着剤の製造方法として、
硫酸およびヨウ素のオキソ酸の混合溶液に活性炭を一定
時間浸漬し、次いでこの活性炭を、水切り、加熱乾燥、
常温で放冷の工程を経て吸着剤としたことを特徴とする
吸着剤の製造方法。In addition, as a method for manufacturing the adsorbent, activated carbon is immersed in a mixed solution of sulfuric acid and iodine oxoacid for a certain period of time, and then this activated carbon is drained, heated and dried.
A method for producing an adsorbent, characterized in that the adsorbent is made into an adsorbent through a cooling process at room temperature.
がそれである。That is it.
作 用
硫酸およびヨウ素のオキソ酸の混合水浴液中に活性炭を
浸漬して、所要の時間を経過させると、活性炭の表面に
は混合水溶液の成分が添着される。Function When activated carbon is immersed in a mixed water bath solution of oxoacids of sulfuric acid and iodine and a required period of time has elapsed, the components of the mixed aqueous solution are attached to the surface of the activated carbon.
そして、この表面の添着成分が主としてアンモニアおよ
びアルカリ性ガスを吸着する作用をする。The impregnated components on the surface mainly act to adsorb ammonia and alkaline gases.
なお、このように表面処理がなされた活性炭であっても
、他の臭気物質の吸着性能はそのまま維持されるので、
本発明に係る吸着剤は、用途がきわめて広く、各種脱臭
、空気清浄等に用いられる。In addition, even with activated carbon that has been surface-treated in this way, its ability to adsorb other odorous substances is maintained, so
The adsorbent according to the present invention has an extremely wide range of uses, and is used for various deodorizations, air purifications, and the like.
発明の効果
本発明は、前記の如（構成され、かつ作用するものであ
るから、従来の活性炭が吸着する臭気物質はもとより、
アンモニアによる憑臭の除去にすぐれた効果を発揮し、
長期にわたってその効果を保持するものである。またア
ルカリ性ガスの吸着にもすぐれた効果を発揮するので、
アンモニアに加えて代表的な悪臭物質であるトリチルア
ミンの除去、あるいは美術館や博物館で問題とされてい
るコンクリートから発生するアルカリ性ガスの除去にも
すぐれた効果を期待することができる。Effects of the Invention Since the present invention is constructed and operates as described above, it is capable of absorbing not only odorous substances that conventional activated carbon adsorbs, but also
Demonstrates excellent effectiveness in removing odor caused by ammonia,
It maintains its effect over a long period of time. It also has an excellent effect on adsorbing alkaline gases, so
In addition to ammonia, it can also be expected to be highly effective in removing tritylamine, a typical malodorous substance, and alkaline gas generated from concrete, which is a problem in art galleries and museums.
なお、本発明に係る吸着剤は、吸着性能にすぐれ、しか
もその寿命が長いので、これを用いることによって、脱
臭や空気清浄等の装置のコンパクト化を図ることができ
、その保守管理の簡累化および処理費用の低減を図るこ
とができる。The adsorbent according to the present invention has excellent adsorption performance and a long service life, so by using it, it is possible to make equipment for deodorization and air purification more compact, and its maintenance and management can be simplified. It is possible to reduce processing costs.
実 施 例 次に本発明の一実施例について説明する。Example Next, one embodiment of the present invention will be described.
吸着剤の製造に用いる混合水溶液は、硫酸を０．１〜１
ＯＮ、ヨウ素のオキソ酸（例えば、ヨウ素酸ＨＩＯ，、
過ヨウ素酸ＨＩＯ４など）を０．０１〜１．０ｍｏｌ／
７程度を水に溶解して調製したものである。The mixed aqueous solution used for producing the adsorbent contains 0.1 to 1 sulfuric acid.
ON, oxoacid of iodine (e.g. iodate HIO,
periodic acid HIO4, etc.) 0.01 to 1.0 mol/
It was prepared by dissolving about 7 in water.
吸着剤の主体となる活性炭は、椰子殻活性炭の再生炭で
あり、４〜８メツシユの破砕状のものが用いられる。The activated carbon that is the main component of the adsorbent is recycled coconut shell activated carbon, and is used in the form of crushed pieces of 4 to 8 meshes.
吸着剤の製造にあたっては、上記混合水溶液中に活性炭
を所要時間浸漬した後、固液分離（水切り）をし、１５
０℃以下で加熱乾燥したうえ、常温の雰囲気中で放冷を
する工程を経る。In manufacturing the adsorbent, activated carbon is immersed in the above mixed aqueous solution for the required time, then solid-liquid separation (draining) is performed, and 15
After drying by heating at 0° C. or lower, the material undergoes a step of cooling in an atmosphere at room temperature.
以下、製造工程の具体例を示す。A specific example of the manufacturing process will be shown below.
混合水溶液 硫酸濃度４Ｎ、ヨウ素のオキソ酸（ヨウ
素酸ＨＩＯｓ）濃度０．２ｍｏｌ／Ａ！
浸 漬□比 活性炭容積：混合水溶液＝１ ： １（
等容積）浸漬時間 １時間
浸漬温度 常温における水温
加熱乾燥 ８０℃で３時間乾燥
常温放冷 デシケータ内で放冷
上記の条件下で製造された吸着剤を用いたアンモニアの
吸着実験例を次に示す。Mixed aqueous solution Sulfuric acid concentration 4N, iodine oxoacid (iodic acid HIOs) concentration 0.2 mol/A! Immersion □ ratio Activated carbon volume: Mixed aqueous solution = 1: 1 (
Equal volume) Soaking time: 1 hour Soaking temperature: Drying by heating at room temperature Drying at 80°C for 3 hours Letting to cool at room temperature Letting to cool in a desiccator An example of an ammonia adsorption experiment using an adsorbent manufactured under the above conditions is shown below. .
第１図はその実験装置であって、１は吸着管、２はそれ
を覆うジャケット、３は多孔状仕切り、４は吸着剤であ
る。吸着管１にはその一方に空気人口５、他方に空気出
口６が形成されている。また、ジャケット２には温水の
注入ロアおよび排出口８が形成されており、ここに２５
℃の温水を流して吸着管１を一定温度に保温している。FIG. 1 shows the experimental apparatus, in which 1 is an adsorption tube, 2 is a jacket covering it, 3 is a porous partition, and 4 is an adsorbent. The adsorption tube 1 is formed with an air port 5 on one side and an air outlet 6 on the other side. In addition, the jacket 2 is formed with a hot water injection lower and a discharge port 8, where 25
The adsorption tube 1 is kept at a constant temperature by flowing hot water at ℃.
吸着剤４の層厚は７．５ ｃＩＬ、吸着管断面積１２．
６ｃｒＩ、実験ガスはアンモニア濃度１００ ｐｐｍの
空気で相対温度約５０％、温度約２５℃であり、実験ガ
スの吸着管１内の線速度は４０ｃｘ／ｓｅｃ、その空間
速度は１９０００ｈｒ１の条件下における実験結果は第
２図に示す通りである。ここに人は本発明に係る吸着剤
、Ｂ−には従来の各種吸着剤であり、各吸着剤Ａ−にの
能力を比較するため、空気人口５におけるアンモニア濃
度（Ｃｉｎ）と空気出口６におけるアンモニア濃度（Ｃ
ｏｕｔ）とを時間ごとに測定し、その比Ｃｏｕｔ／Ｃ１
ｎ（破過率＝ Ｃｏｕｔ／Ｃｉｎ Ｘ １００％）が示
されている。The layer thickness of the adsorbent 4 is 7.5 cIL, and the cross-sectional area of the adsorption tube is 12.
6crI, the experimental gas was air with an ammonia concentration of 100 ppm, the relative temperature was about 50%, the temperature was about 25°C, the linear velocity of the experimental gas in the adsorption tube 1 was 40 cx/sec, and the space velocity was 19000 hr1. The results are shown in FIG. Here, B- is the adsorbent according to the present invention, B- is various conventional adsorbents, and in order to compare the ability of each adsorbent A-, the ammonia concentration (Cin) at air population 5 and the air outlet 6 are shown. Ammonia concentration (C
out) is measured every hour, and the ratio Cout/C1
n (breakthrough rate = Cout/Cin x 100%) is shown.
また、下表には測定結果から求めた各吸着剤の１０％破
過時間が示されている。In addition, the table below shows the 10% breakthrough time of each adsorbent determined from the measurement results.
吸着剤 Ａ’Ｂ’ＣＤ Ｅ Ｆ Ｇ Ｈエ 、
Ｋ破過時間
以上の実験データから明らかなように、本発明に係る吸
着剤Ａはアンモニアの吸着除去効率がきわめて高（、し
かも長時間にわたってその効果を保持するものであり、
従来の吸着剤で最も性能がよい吸着剤Ｂより約２倍も寿
命が長く、きわめて高性能の吸着剤である。Adsorbent A'B'CD E F G H e,
As is clear from the experimental data of the K breakthrough time or more, the adsorbent A according to the present invention has an extremely high ammonia adsorption/removal efficiency (and maintains its effectiveness for a long time).
It is an extremely high-performance adsorbent, with a lifespan approximately twice as long as that of adsorbent B, which has the best performance among conventional adsorbents.
第１図は吸着効果の実験装置の一例を示す縦断面図、第
２図は本発明に係る吸着剤と従来の吸着剤の性能を示し
た特性図である。FIG. 1 is a longitudinal sectional view showing an example of an experimental device for adsorption effects, and FIG. 2 is a characteristic diagram showing the performance of the adsorbent according to the present invention and a conventional adsorbent.
Claims (3)
てなることを特徴とする吸着剤。(1) An adsorbent comprising activated carbon impregnated with oxoacids of sulfuric acid and iodine.
を一定時間浸漬し、次いでこの活性炭を、水切り、加熱
乾燥、常温で放冷の工程を経て吸着剤としたことを特徴
とする吸着剤の製造方法。(2) An adsorbent characterized in that activated carbon is immersed in a mixed solution of oxoacids of sulfuric acid and iodine for a certain period of time, and then this activated carbon is made into an adsorbent through the steps of draining water, heating drying, and leaving it to cool at room temperature. Production method.
ｍｏｌ／ｌの混合溶液を用いることを特徴とする特許請
求の範囲第２項記載の吸着剤の製造方法。(3) Sulfuric acid concentration is 4N, iodine oxoacid concentration is 0.2
The method for producing an adsorbent according to claim 2, characterized in that a mixed solution of mol/l is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59189868A JPS6168136A (en) | 1984-09-11 | 1984-09-11 | Adsorbent and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59189868A JPS6168136A (en) | 1984-09-11 | 1984-09-11 | Adsorbent and its production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6168136A true JPS6168136A (en) | 1986-04-08 |
| JPH0421541B2 JPH0421541B2 (en) | 1992-04-10 |
Family
ID=16248512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59189868A Granted JPS6168136A (en) | 1984-09-11 | 1984-09-11 | Adsorbent and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6168136A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5346876A (en) * | 1991-12-12 | 1994-09-13 | Nippon Chemical Industrial Co., Ltd. | Air purifying agent and a process for producing same |
| US5403548A (en) * | 1992-02-28 | 1995-04-04 | Takeda Chemical Industries Ltd. | Activated carbon adsorbent and applications thereof |
| KR20000049532A (en) * | 2000-04-04 | 2000-08-05 | 신창섭 | Preparing method of impregnated activated carbon and activated carbon fiber with KIO3 for the removal of sulfureous odors as H2S and CH3SH. |
-
1984
- 1984-09-11 JP JP59189868A patent/JPS6168136A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5346876A (en) * | 1991-12-12 | 1994-09-13 | Nippon Chemical Industrial Co., Ltd. | Air purifying agent and a process for producing same |
| US5403548A (en) * | 1992-02-28 | 1995-04-04 | Takeda Chemical Industries Ltd. | Activated carbon adsorbent and applications thereof |
| KR20000049532A (en) * | 2000-04-04 | 2000-08-05 | 신창섭 | Preparing method of impregnated activated carbon and activated carbon fiber with KIO3 for the removal of sulfureous odors as H2S and CH3SH. |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0421541B2 (en) | 1992-04-10 |
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