Volatile organic silicon compounds in biogases: Development of sampling and analytical methods for total silicon quantification by ICP-OES

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Abstract

Current waste management policies favor biogases (digester gases (DGs) and landfill gases (LFGs)) valorization as it becomes a way for energy politics. However, volatile organic silicon compounds (VOSiCs) contained into DGs/LFGs severely damage combustion engines and endanger the conversion into electricity by power plants, resulting in a high purification level requirement. Assessing treatment efficiency is still difficult. No consensus has been reached to provide a standardized sampling and quantification of VOSiCs into gases because of their diversity, their physicochemical properties, and the omnipresence of silicon in analytical chains. Usually, samplings are done by adsorption or absorption and quantification made by gas chromatography-mass spectrometry (GC-MS) or inductively coupled plasma-optical emission spectrometry (ICP-OES). In this objective, this paper presents and discusses the optimization of a patented method consisting in VOSiCs sampling by absorption of 100% ethanol and quantification of total Si by ICP-OES.

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Chottier, C., Chatain, V., Julien, J., Dumont, N., Lebouil, D., & Germain, P. (2014). Volatile organic silicon compounds in biogases: Development of sampling and analytical methods for total silicon quantification by ICP-OES. Scientific World Journal, 2014. https://doi.org/10.1155/2014/537080

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