Influence of Metering Valve Design on Efficiency of Unstable Gas Condensate Analysis
When unstable gas condensate is analyzed using direct sample injection into a chromatograph, the design features and operating parameters of the metering valve significantly affect the accuracy and reproducibility of the analysis. In this work, a study was made of the influence of the characteristic...
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Veröffentlicht in: | Chemistry and technology of fuels and oils 2021-11, Vol.57 (5), p.777-782 |
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Hauptverfasser: | , , , , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | When unstable gas condensate is analyzed using direct sample injection into a chromatograph, the design features and operating parameters of the metering valve significantly affect the accuracy and reproducibility of the analysis. In this work, a study was made of the influence of the characteristics of two types of metering valves, namely, high-pressure and high-temperature sample metering device and sample metering valve with a syringeless injector, on unstable gas condensate analysis [conforming to GSO (State Object Standard) 10525–2014] when the sample is injected into the chromatograph without its degassing, It is shown that use of a metering valve with a heated stem helps get high metrological characteristics. Significant deviation of analysis results from the regulatory requirements was observed for hydrocarbons starting with C
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when a metering valve having an injector was used without heating the stem. |
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ISSN: | 0009-3092 1573-8310 |
DOI: | 10.1007/s10553-021-01306-y |