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.

随着能源短缺、环境污染问题日趋严重,环境保护、资源回收、再生能源的开发利用已成为近年来研究的重点。厌氧发酵产沼气法作为一种即可处理废水和废物又能产生能源的工艺被环保行业广泛应用[1]。在厌氧发酵研究过程中,沼气组成成分和含量是厌氧发酵过程的重要监控指标。

厌氧发酵过程中,沼气组成成分及其含量不仅是判断厌氧发酵所处阶段的重要指标,也能直观地反映厌氧发酵罐的运行情况。

滕州市翔鹰分析技术有限公司用GC7990气相色谱优化方法对沼气三种主要成分CH4、CO2、H2S及其含量进行检测,结果表明,沼气各成分出峰时间间隔清晰,容易识别;精密度较好,甲烷、二氧化碳、硫化氢的标准偏差分别为0.0109%、0.0966%、0.1217%,变异系数分别为0.016%、0.314%、0.816%。该优化方法操作简单、方便,定性、定量准确可靠,是一种检测沼气成分的实用方法。