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ANALYSIS OF COALBED GAS COMPOSITION IN GAS SAMPLE

XIA-Feng;ZHAO Lan-fang;Nie-Quan-xin;Institute of Geoanalysis of Anhui Province;Innermongolia Qiankun Gold and Silver Refinery Co.,ltd;Institute of Geological Mapping of Anhui Province;  
Put coal core sample in analysis tank in the field and degassed it in a vacuum degasser.The gas product was determined for its compositional concentration with gas chromatograph GC4008 B.Recorded data was processed with A5000 gas chromatograph workstation data processing software.It was fast to measure the contents of CO,CO_2,CH_4,C_2H_4,C_2H_6,C_3H_8 and heavy hydrocarbon gases.It meets the quality requirement when used for measurement of samples in large quantities.
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