As the problem of energy shortage, environment pollution becomes worse and worse, environmental protection and resource recycling, renewable energy development and utilization has become the focus of research in recent years. Anaerobic fermentation to produce biogas method as a kind of processing waste water and waste and can produce energy technology is widely used [1] the environmental protection industry. In the process of anaerobic fermentation research, the composition and content of the biogas is important in the process of anaerobic fermentation monitoring indicators.

Anaerobic fermentation process, biogas composition and its content is not only the judgment anaerobic fermentation the important stage of the indicators, can intuitively reflect the operation of anaerobic fermentation tank.

 xiangying eagle analysis technology co., LTD. With GC7990 optimization method for methane gas chromatography of three main ingredients of CH4, CO2, H2S and its content is tested, the results show that gas component in the peak time interval is clear, easy to identify; Precise, methane, carbon dioxide, hydrogen sulphide standard deviation are 0.0109%, 0.0966% and 0.0109% respectively, the variation coefficient were 0.016%, 0.314% and 0.816% respectively. The optimization method is simple, convenient operation, accurate qualitative and quantitative, and is a practical method of detecting methane component.

隨著能源短缺、環境污染問題日趨嚴重,環境保護、資源回收、再生能源的開發利用已成為近年來研究的重點。厭氧發酵產沼氣法作為一種即可處理廢水和廢物又能產生能源的工藝被環保行業廣泛應用[1]。在厭氧發酵研究過程中,沼氣組成成分和含量是厭氧發酵過程的重要監控指標。

厭氧發酵過程中,沼氣組成成分及其含量不僅是判斷厭氧發酵所處階段的重要指標,也能直觀地反映厭氧發酵罐的運行情況。

滕州市翔鷹分析技術有限公司用GC7990氣相色譜優化方法對沼氣三種主要成分CH4、CO2、H2S及其含量進行檢測,結果表明,沼氣各成分出峰時間間隔清晰,容易識別;精密度較好,甲烷、二氧化碳、硫化氫的標準偏差分別為0.0109%、0.0966%、0.1217%,變異系數分別為0.016%、0.314%、0.816%。該優化方法操作簡單、方便,定性、定量準確可靠,是一種檢測沼氣成分的實用方法。