JPH0275951A - Instrument for measuring adsorptivity of activated carbon - Google Patents
Instrument for measuring adsorptivity of activated carbonInfo
- Publication number
- JPH0275951A JPH0275951A JP22667188A JP22667188A JPH0275951A JP H0275951 A JPH0275951 A JP H0275951A JP 22667188 A JP22667188 A JP 22667188A JP 22667188 A JP22667188 A JP 22667188A JP H0275951 A JPH0275951 A JP H0275951A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- measuring
- gas chromatograph
- activated carbon
- sample
- 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.)
- Pending
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 239000007789 gas Substances 0.000 claims abstract description 50
- 238000001179 sorption measurement Methods 0.000 claims abstract description 24
- 238000005259 measurement Methods 0.000 claims abstract description 21
- 238000000926 separation method Methods 0.000 claims abstract description 17
- 239000012159 carrier gas Substances 0.000 claims abstract description 9
- 239000002808 molecular sieve Substances 0.000 claims abstract description 6
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000000357 thermal conductivity detection Methods 0.000 claims abstract description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 238000012856 packing Methods 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 229910052743 krypton Inorganic materials 0.000 claims description 3
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052724 xenon Inorganic materials 0.000 claims description 3
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 3
- 229910001873 dinitrogen Inorganic materials 0.000 claims 2
- 238000005070 sampling Methods 0.000 abstract description 5
- 239000000945 filler Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、クリプトン（以下ｘｒ）およびキセノン（以
下Ｘｓ）に対する活性炭の吸着能測定に好適な装置に関
する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apparatus suitable for measuring the adsorption capacity of activated carbon for krypton (hereinafter referred to as xr) and xenon (hereinafter referred to as Xs).
従来のガスクロマトグラフ装置による空気中のＫｒの計
測は、ガスクロマトグラフ装置のキャリアガスとしてヘ
リウム（以下Ｈｅ ）を用いる方法が感度も良く一般的
に使用されている。しかし、Ｈｅキャリアガスで空気中
のに、濃度を測定するには１分離カラムで酸素（以下０
２）窒素（以下Ｎ２）。For measuring Kr in air using a conventional gas chromatograph, a method using helium (hereinafter referred to as He) as a carrier gas of the gas chromatograph is generally used because of its good sensitivity. However, to measure the concentration of oxygen in the air using a He carrier gas, one separation column is required to measure the concentration of oxygen (hereinafter referred to as 0).
2) Nitrogen (hereinafter referred to as N2).
に「の順に分離され検出器に流入する各成分ガスの濃度
測定値が相互に干渉しない時間差を確保するために分離
カラム充填剤は活性炭に限られ、その結果、Ｋｒ分離は
約１１公租度必要となる。この種のガスクロマトグラフ
装置によるに、計測例は、ガスクロ工業株式会社総合カ
タログＮ１１２１に挙げられている。The separation column packing material is limited to activated carbon in order to ensure a time difference in which the concentration measurements of each component gas separated in the order of 1 and flowing into the detector do not interfere with each other. As a result, Kr separation requires approximately 11 tolerances. An example of measurement using this type of gas chromatograph device is listed in the Gas Chromo Kogyo Co., Ltd. General Catalog N1121.
上記従来技術では、ガスクロマトグラフ装置計測時間に
ついての考慮がされておらず、−回の計測にデータ処理
時間を含め約１５分を要するため。In the above-mentioned conventional technology, no consideration is given to the measurement time of the gas chromatograph apparatus, and it takes about 15 minutes for -times of measurement including data processing time.
活性炭層出口に、濃度曲線を正確に確認するには、大量
の活性炭サンプルを使用して、活性炭層出口Ｋｒ流出時
間を長くとり、測定点数を増す必要があった。この結果
、測定装置が大型化し、測定場所が制限され、また、測
定に長時間が必要であった。In order to accurately confirm the concentration curve at the outlet of the activated carbon bed, it was necessary to use a large amount of activated carbon samples, take a long time for Kr to flow out of the activated carbon bed, and increase the number of measurement points. As a result, the measuring device has become larger, the measurement locations are restricted, and measurement requires a long time.
本発明の目的は、少量の活性炭サンプルリングに好適な
、活性炭の吸着能測定装置を提供することにある。An object of the present invention is to provide an activated carbon adsorption capacity measuring device suitable for sampling a small amount of activated carbon.
本発明の他の目的は、活性炭吸着測定を迅速にする装置
を提供することにある。Another object of the present invention is to provide an apparatus for rapid activated carbon adsorption measurements.
本発明のさらに他の目的は、活性炭吸着能測定装置に好
適な、０２除去装置を提供することにある。Still another object of the present invention is to provide an 02 removal device suitable for an activated carbon adsorption capacity measuring device.
上記目的は１次の四項口を実施することにより達成され
る。The above objective is achieved by implementing a first-order quadratic algorithm.
（１）ガスクロマトグラフ装置キャリアガスを、Ｎｘと
する。(1) The gas chromatograph device carrier gas is Nx.
（２）ガスクロマトグラフ装置分離カラム充填剤を。(2) Gas chromatography device separation column packing material.
モレキユラシーブとする。Molecule sieve.
（３）試料気体中の０２を、ｏ２除去装置で除去した後
に、ガスクロマトグラフ装置により計測する。(3) After removing O2 in the sample gas using an O2 removal device, measurement is performed using a gas chromatograph device.
（４）Ｏｘ除去装置は、還元鋼を０２除去材とする。(4) The Ox removal device uses reduced steel as the 02 removal material.
分離カラム充填剤をモレキユラシーブは、成分ガスの分
離能に優れ、活性炭に比べ約半分の時間で、空気中の○
ｘ、Ｎ２．に２を分離できる。また。Molecular sieve separation column packing material has excellent separation performance for component gases, and can remove ○ in the air in about half the time compared to activated carbon.
x, N2. The two can be separated. Also.
キャリアガスをＮ２としたことにより、空気中のＮ２に
よる影響を除去し、Ｋ、濃度測定値への干渉を防ぐこと
ができる。さらに、空気中のＯｚを、０２除去装置を用
いて除去した後の試料気体中には、Ｋ「との分離対象成
分がないため、分離カラム長を短かくでき、分離時間を
さらに短縮できる。By using N2 as the carrier gas, it is possible to remove the influence of N2 in the air and prevent interference with the K and concentration measurement values. Furthermore, since there is no component to be separated from K in the sample gas after Oz in the air is removed using the 02 removal device, the length of the separation column can be shortened and the separation time can be further shortened.
この操作により、ガスクロマトグラフ装置計測時間が約
３分／回となり、少量サンプルの活性炭層出口に、濃度
変化に対しても十分な測定が可能となり、吸着能を判定
できる。By this operation, the gas chromatograph measurement time is reduced to about 3 minutes/time, and it becomes possible to sufficiently measure the concentration change of a small sample at the outlet of the activated carbon layer, thereby making it possible to determine the adsorption capacity.
また、少量の活性炭サンプルでも吸着能を測定できるこ
とにより、測定装置を小型化でき、迅速な測定ができる
。Furthermore, since the adsorption capacity can be measured even with a small amount of activated carbon sample, the measuring device can be made smaller and measurements can be carried out quickly.
熱した還元銅に、試料気体を通気させることにより、ｏ
２が銅と反応し酸化銅となり、０２を除去できる。By passing the sample gas through heated reduced copper, o
2 reacts with copper to form copper oxide, and 02 can be removed.
以下、本発明の一実施例を図面に基づいて説明する。第
１図は、活性炭吸着能測定装置の系統図を示す、活性炭
吸着能測定装置は、吸着カラム４０、恒温槽３ｏ、空気
容器１０、Ｋ、容器２０゜０１除去装置５０．自動サン
プリング装置６０、および、ガスクロマトグラフ装置７
０より構成される。既知量の活性炭サンプルを、吸着カ
ラム４０に充填した後に、空気容器１０より空気を吸着
カラム４０へ通しながら通気速度、圧力、および吸着温
度を所定の測定条件に設定する。次に、吸着カラム４０
の入口Ｋｒ濃度が測定条件になるようにＫｒ容器２０よ
りＫｒ を空気流中に導入する。吸着カラム４０の出口
ガス中より、自動サンプリング装置６０で、ｏ２除去装
置５０を通してサンプリングした試料気体は、ガスクロ
マトグラフ装［７０へ送入し、Ｋ「濃度を計測する。こ
の計測を回分式に行った結果より吸着カラム４０の出口
試料気体中Ｋｒ濃度が最大となる時間を保持時間とし、
計算によりサンプル活性炭の吸着能を求める。Hereinafter, one embodiment of the present invention will be described based on the drawings. FIG. 1 shows a system diagram of an activated carbon adsorption ability measuring device. Automatic sampling device 60 and gas chromatograph device 7
Consists of 0. After filling the adsorption column 40 with a known amount of activated carbon sample, air is passed through the adsorption column 40 from the air container 10 while the aeration rate, pressure, and adsorption temperature are set to predetermined measurement conditions. Next, the adsorption column 40
Kr is introduced into the air stream from the Kr container 20 so that the inlet Kr concentration meets the measurement condition. The sample gas sampled from the outlet gas of the adsorption column 40 through the O2 removal device 50 by the automatic sampling device 60 is sent to the gas chromatograph device [70] and the K concentration is measured.This measurement is performed batchwise. Based on the results, the time when the Kr concentration in the sample gas at the outlet of the adsorption column 40 reaches its maximum is set as the retention time,
Determine the adsorption capacity of the sample activated carbon by calculation.
第２図は、ガスクロマトグラフ装置廻り系統図を示す、
ガスクロマトグラフ装置７０は、恒温槽９０、モレキユ
ラシーブを充填した分離カラム１２０、検出器ＴＣＤ
（熱伝導度検出型ガスクロマドグラフ）１００、および
、試料送入部１１０より構成される。キャリアガスＮ２
容器８０よりＮ２ガスをガスクロマトグラフ装置７０へ
通しながら、通気速度、分離カラム温度、および、検出
器ブリッジ電流を所定の測定条件に設定しておく。Figure 2 shows a system diagram around the gas chromatograph device.
The gas chromatograph device 70 includes a constant temperature bath 90, a separation column 120 filled with molecular sieve, and a detector TCD.
(thermal conductivity detection type gas chromatograph) 100 and a sample feeding section 110. carrier gas N2
While passing N2 gas from the container 80 to the gas chromatograph device 70, the ventilation rate, separation column temperature, and detector bridge current are set to predetermined measurement conditions.
０２を除去した試料気体を、試料送入部１１０よリガス
クロマトグラフ装置７０へ送入して計測する。計測結果
は、データ処理装置１３０で処理され出力される。The sample gas from which 02 has been removed is sent to the Rigas chromatography device 70 through the sample feeding section 110 and measured. The measurement results are processed and output by the data processing device 130.
第３図は、０２除去装置の系統図である。ヒータ１４０
により加熱された還元銅１５０へ、試料気体を通気し、
０２を除去した後に、冷却器１６０で試料気体温度を下
げる。FIG. 3 is a system diagram of the 02 removal device. Heater 140
Aerate the sample gas into the reduced copper 150 heated by
After removing 02, the sample gas temperature is lowered by a cooler 160.
この実施例によれば、ガスクロマトグラフ装置により空
気流中Ｋｒ濃度計測時間は、データ処理時間を含め約３
分／回程度となり、サンプル置駒２００ｇの活性炭吸着
能が約２０分で測定できた。According to this example, the time required to measure the Kr concentration in the air stream using the gas chromatograph device is approximately 3 hours, including the data processing time.
The adsorption capacity of activated carbon for 200 g of sample placement pieces could be measured in about 20 minutes.
１、本発明によれば、少量の活性炭サンプルで吸着能の
測定が可能となり、吸着能の測定時間が短縮される。1. According to the present invention, adsorption capacity can be measured with a small amount of activated carbon sample, and the time required for adsorption capacity measurement is shortened.
第１図は本発明の一実施例の活性炭吸着能測定装置の系
統図、第２図は本発明のガスクロマトグラフ装置の系統
図、第３図はＯ２除去装置の系統図である。
１０・・・空気容器、２０・・・Ｋｒ容器、３０・・・
恒温槽、４０・・・吸着カラム、５０・・・０２除去装
置、６０・・・自動サンプリング装置、７０・・・ガス
クロマトグラフ装置、８０・・・キャリアガスＮ２容器
、９０・・・恒温槽、１００・・・検出器ＴＣＤ、１１
０・・・試料送入部、１２０・・・分離カラム、１３０
・・・データ処理装置、１４０・・・ヒータ、１５０・
・・還元銅、１６０・・・冷却器。
代理人 弁理士 小川勝男 、Ｅ）
“・ミ
第１図
第２因
第３図FIG. 1 is a system diagram of an activated carbon adsorption capacity measuring device according to an embodiment of the present invention, FIG. 2 is a system diagram of a gas chromatograph device of the present invention, and FIG. 3 is a system diagram of an O2 removal device. 10...Air container, 20...Kr container, 30...
Constant temperature bath, 40... Adsorption column, 50... 02 removal device, 60... Automatic sampling device, 70... Gas chromatograph device, 80... Carrier gas N2 container, 90... Constant temperature bath, 100...Detector TCD, 11
0... Sample feeding section, 120... Separation column, 130
...Data processing device, 140...Heater, 150.
...Reduced copper, 160...Cooler. Agent: Patent attorney Katsuo Ogawa, E)
Claims (1)
する活性炭の吸着性能の測定に際し、活性炭層の出口か
ら採取された試料気体中の酸素を、酸素除去装置により
除去する手段と、計測条件をキャリアガスに窒素ガス、
分離カラム充填剤としてモレキユラシーブ、検出器とし
てＴＣＤ（熱伝導度検出型ガスクロマトグラフ）を使用
したガスクロマトグラフ装置により計測する手段とを含
むことを特徴とする活性炭の吸着能測定装置。 ２、空気中のクリプトンおよびキセノンの濃度測定する
に際し、空気中の酸素を酸素除去装置により除去する手
段と、計測条件をキャリアガスに窒素ガス、分離カラム
充填剤にモレキユラシーブ、検出器として（熱伝導度検
出型ガスクロマトグラフ）を使用したガスクロマトグラ
フ装置により計測する手段とを含むことを特徴とする濃
度測定装置。 ３、ガスクロマトグラフ装置の計測条件を、分離カラム
充填剤として活性炭を用いた特許請求項第１項記載の活
性炭の吸着能測定装置。 ４、活性炭吸着能の測定に際し、加熱した還元銅に試料
気体を通気させて酸素を除去する手段を用いたことを特
徴とするＯ＿２除去装置。[Claims] 1. Means for removing oxygen in a sample gas collected from an outlet of an activated carbon layer using an oxygen removal device when measuring the adsorption performance of activated carbon for krypton and xenon mixed in an air flow; Measurement conditions include nitrogen gas as carrier gas,
1. A device for measuring adsorption capacity of activated carbon, comprising means for measuring with a gas chromatograph device using a molecular sieve as a separation column packing material and a TCD (thermal conductivity detection type gas chromatograph) as a detector. 2. When measuring the concentration of krypton and xenon in the air, the oxygen in the air is removed by an oxygen removal device, and the measurement conditions are nitrogen gas as a carrier gas, molecular sieve as a separation column packing material, and a detector (thermal conduction). 1. A concentration measuring device characterized by comprising: means for measuring with a gas chromatograph device using a gas chromatograph (detecting gas chromatograph). 3. The activated carbon adsorption capacity measuring device according to claim 1, wherein the measurement conditions of the gas chromatograph device are such that activated carbon is used as the separation column packing material. 4. An O_2 removal device characterized by using means for removing oxygen by passing a sample gas through heated reduced copper when measuring activated carbon adsorption capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22667188A JPH0275951A (en) | 1988-09-12 | 1988-09-12 | Instrument for measuring adsorptivity of activated carbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22667188A JPH0275951A (en) | 1988-09-12 | 1988-09-12 | Instrument for measuring adsorptivity of activated carbon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0275951A true JPH0275951A (en) | 1990-03-15 |
Family
ID=16848833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22667188A Pending JPH0275951A (en) | 1988-09-12 | 1988-09-12 | Instrument for measuring adsorptivity of activated carbon |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0275951A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023067955A1 (en) * | 2021-10-18 | 2023-04-27 | 新東工業株式会社 | Gas measuring instrument |
-
1988
- 1988-09-12 JP JP22667188A patent/JPH0275951A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023067955A1 (en) * | 2021-10-18 | 2023-04-27 | 新東工業株式会社 | Gas measuring instrument |
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