JP2003247982A - Instrument for measuring trace of impurity in hydrogen - Google Patents
Instrument for measuring trace of impurity in hydrogenInfo
- Publication number
- JP2003247982A JP2003247982A JP2002045792A JP2002045792A JP2003247982A JP 2003247982 A JP2003247982 A JP 2003247982A JP 2002045792 A JP2002045792 A JP 2002045792A JP 2002045792 A JP2002045792 A JP 2002045792A JP 2003247982 A JP2003247982 A JP 2003247982A
- Authority
- JP
- Japan
- Prior art keywords
- hydrogen
- hydrocarbons
- impurities
- flame ionization
- ionization detector
- 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
Landscapes
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、水素中に含まれる
不純物又は水素に混入する不純物をオンラインで測定す
る装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for on-line measurement of impurities contained in hydrogen or impurities mixed in hydrogen.
【０００２】[0002]
【従来の技術】従来、水素中の不純物の測定としてガス
クロマトグラフを使用していた。しかしながら、ガスク
ロマトグラフではカラムでの分離工程があるため、間欠
測定で連続測定ができないという欠点を有している。ま
た、不純物中の一酸化炭素及び二酸化炭素は、ガスクロ
マトグラフの水素炎イオン化検出器では検出されない。2. Description of the Related Art Conventionally, a gas chromatograph has been used to measure impurities in hydrogen. However, the gas chromatograph has a drawback that continuous measurement cannot be performed by intermittent measurement because of the separation step in the column. Further, carbon monoxide and carbon dioxide in the impurities are not detected by the hydrogen flame ionization detector of the gas chromatograph.
【０００３】[0003]
【発明が解決しようとする課題】本発明の目的は、従来
技術における上記したような課題を解決し、水素中の不
純物の連続測定を提供すること及び一酸化炭素及び二酸
化炭素を含めた不純物の測定を提供することである。It is an object of the present invention to solve the above mentioned problems in the prior art, to provide a continuous measurement of impurities in hydrogen and to determine the impurities including carbon monoxide and carbon dioxide. Is to provide a measurement.
【０００４】[0004]
【課題を解決するための手段】本発明者は、連続測定に
ついて鋭意研究を重ねた結果、水素炎イオン化検出器へ
測定する水素をダイレクトに導入すれば、連続測定がで
きることを見いだし、また一酸化炭素及び二酸化炭素を
炭化水素に変換することで、水素炎イオン化検出器で測
定を可能にして測定装置の機能を向上させることができ
ることを見いだし、本発明に到達した。As a result of earnest studies on continuous measurement, the present inventor found that continuous measurement can be performed by directly introducing hydrogen to be measured into a hydrogen flame ionization detector, and also monoxide. It has been found that by converting carbon and carbon dioxide into hydrocarbon, it is possible to measure with a hydrogen flame ionization detector and improve the function of the measuring device, and arrived at the present invention.
【０００５】すなわち、本発明は、水素炎イオン化検出
器１、サンプル水素中の一酸化炭素又は二酸化炭素を炭
化水素に変換する装置２、キャリア空気の炭化水素を除
去する装置３から構成される水素中の不純物のオンライ
ン測定装置に関するもの、並びに一酸化炭素及び二酸化
炭素を炭化水素に変換する装置２を通したサンプル水素
及び炭化水素を除去する装置３を通したキャリア空気を
水素炎イオン化検出器１に導入して、水素中の不純物を
オンライン測定する方法に関するものである。That is, the present invention is a hydrogen comprising a flame ionization detector 1, a device 2 for converting carbon monoxide or carbon dioxide in sample hydrogen to hydrocarbons, and a device 3 for removing hydrocarbons in carrier air. For online measurement of impurities in air, as well as for sample air through a device 2 for converting carbon monoxide and carbon dioxide into hydrocarbons and carrier air through a device 3 for removing hydrocarbons, a flame ionization detector 1 The present invention relates to a method for on-line measurement of impurities in hydrogen by introducing into hydrogen.
【０００６】[0006]
【発明の実施の形態】本発明の装置は、キャリア空気を
空気中の炭化水素を除去する装置３、及びサンプル水素
をサンプルガス中の一酸化炭素及び二酸化炭素を炭化水
素に変換する装置２を通じて水素炎イオン化検出器１に
導入する。水素炎イオン化検出器、空気中の炭化水素を
除去する装置及び一酸化炭素及び二酸化炭素を炭化水素
に変換する装置は、特別なものでなくガスクロマトグラ
フィー等で用いられているものでよい。検出器からの信
号は、イオン電流増幅器４を通じて計測演算制御ユニッ
ト５で計測値が表示され、また一定値以上の場合は警報
が出るようになっている。水素炎イオン化検出器１は、
恒温槽用温度調節器６により、恒温に保たれている。本
発明の装置は、メタノール法水素製造装置の水素中の不
純物増加を監視するために、オンラインで連続測定する
のに有効である。BEST MODE FOR CARRYING OUT THE INVENTION The apparatus of the present invention comprises a device 3 for removing carrier air from hydrocarbons in the air, and a device 2 for converting sample hydrogen into carbon monoxide and carbon dioxide in sample gas into hydrocarbons. The hydrogen flame ionization detector 1 is introduced. The hydrogen flame ionization detector, the device for removing hydrocarbons in the air, and the device for converting carbon monoxide and carbon dioxide into hydrocarbons are not special ones and may be those used in gas chromatography or the like. With respect to the signal from the detector, a measurement value is displayed by the measurement calculation control unit 5 through the ion current amplifier 4, and an alarm is issued when the value is a certain value or more. The flame ionization detector 1 is
A constant temperature is maintained by the temperature controller 6 for constant temperature bath. INDUSTRIAL APPLICABILITY The apparatus of the present invention is effective for continuous on-line measurement in order to monitor the increase of impurities in hydrogen in the methanol hydrogen production apparatus.
【０００７】[0007]
【発明の効果】本発明の装置により、燃焼用水素の削減
と連続測定が可能になり、非分散型赤外線方式等の連続
測定機器よりも非常に安価に製造でき、従来のガスクロ
マトグラフを使用した場合よりもランニングコストを低
くすることができる。The apparatus of the present invention enables reduction of hydrogen for combustion and continuous measurement, which is much cheaper to manufacture than a continuous measuring instrument such as a non-dispersive infrared method, and uses a conventional gas chromatograph. Running costs can be lower than in the case.
【図１】 本発明の測定装置FIG. 1 Measuring apparatus of the present invention
１：水素炎イオン化検出器
２：一酸化炭素及び二酸化炭素を炭化水素に変換する装
置
３：空気中の炭化水素を除去する装置
４：イオン電流増幅器
５：計測演算制御ユニット
６：恒温槽用温度調節器1: Hydrogen flame ionization detector 2: Device for converting carbon monoxide and carbon dioxide into hydrocarbons 3: Device for removing hydrocarbons in air 4: Ion current amplifier 5: Measurement and operation control unit 6: Temperature for constant temperature bath Regulator
Claims (2)
中の一酸化炭素又は二酸化炭素を炭化水素に変換する装
置２、キャリア空気の炭化水素を除去する装置３から構
成される水素中の不純物のオンライン測定装置。1. A hydrogen flame ionization detector 1, a device 2 for converting carbon monoxide or carbon dioxide in sample hydrogen to hydrocarbons, and a device 3 for removing hydrocarbons in carrier air for impurities in hydrogen. Online measuring device.
変換する装置２を通したサンプル水素並びに炭化水素を
除去する装置３を通したキャリア空気を水素炎イオン化
検出器１に導入して、水素中の不純物をオンライン測定
する方法。2. A hydrogen flame ionization detector 1 is introduced with sample hydrogen passed through a device 2 for converting carbon monoxide and carbon dioxide into hydrocarbons and carrier air passed through a device 3 for removing hydrocarbons. Method for online measurement of impurities in liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002045792A JP2003247982A (en) | 2002-02-22 | 2002-02-22 | Instrument for measuring trace of impurity in hydrogen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002045792A JP2003247982A (en) | 2002-02-22 | 2002-02-22 | Instrument for measuring trace of impurity in hydrogen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003247982A true JP2003247982A (en) | 2003-09-05 |
Family
ID=28659456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002045792A Pending JP2003247982A (en) | 2002-02-22 | 2002-02-22 | Instrument for measuring trace of impurity in hydrogen |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003247982A (en) |
-
2002
- 2002-02-22 JP JP2002045792A patent/JP2003247982A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20050204 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20070704 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20071031 |