VTT, Technical Research Centre of Finland, P. O. Box 1000, FI-02044 VTT, Finland.
Waste Manag. 2010 Jun;30(6):1011-7. doi: 10.1016/j.wasman.2009.11.030. Epub 2009 Dec 28.
This paper focuses on the development of an on-line measurement method for siloxanes and other biogas trace compounds impeding the energy utilisation of biogas, as well as the main gas components, methane and carbon dioxide. The method is based on gas chromatography and FT-IR-analysis. The level of siloxane, hydrogen sulphide and halogens in biogas generated in a number of landfills and digesters in Finland is also presented and factors affecting the concentrations discussed. Generally, the level of biogas trace compounds hampering electricity production was lower than those measured at comparable sites in Central Europe and the US. Moreover, the paper discusses the significance of on-line monitoring of siloxane in connection to biogas-to-electricity applications and points out with activated carbon as an example the benefits of on-line siloxane measurement in the control of siloxane removal technology.
本文主要研究一种在线测量方法，用于测量沼气中抑制沼气能源利用的硅氧烷和其他痕量化合物，以及主要的沼气成分——甲烷和二氧化碳。该方法基于气相色谱和傅里叶变换红外分析。文中还介绍了芬兰多个垃圾填埋场和沼气池中产生的沼气中硅氧烷、硫化氢和卤素的水平，并讨论了影响浓度的因素。总的来说，抑制发电的沼气痕量化合物的水平低于在中欧和美国类似地点测量到的水平。此外，本文还讨论了在线监测硅氧烷与沼气制电应用的关系，并以活性炭为例说明了在线测量硅氧烷在控制硅氧烷去除技术方面的好处。
