Authors: Soreanu, G., M. Be´Land, P. Falletta, K. Edmonson, L. Svoboda, M. Al-Jamal And P. Seto
Identifier: C0815
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Published in: CBE Journal » CBE Journal Volume 53 (2011)

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Description: One of the. major barriers to the use of biogas as an alternative renewable. energy source is the presence of siloxanes. At combustion temperatures,. siloxanes are converted to silicon dioxide (SiO2), which. forms deposits on the combustion surfaces (pistons and cylinders). of gas processing equipment, thus reducing engine life and. increasing overall operational and maintenance costs.. This paper presents key multidisciplinary information with. respect to siloxane removal, aimed at evaluating various treatment. options and identifying future research needs. Current. removal methods are typically based on the adsorption process,. while others employ gasliquid absorption and refrigeration/. condensation. Otherwise these methods are appropriate for. siloxane removal with regard to siloxane physicalchemical characteristics. (for example, low solubility in water, high solubility. in organic solvents, volatility, chemical resistance) their application. in practice is cost-limited. Adsorption and absorption. methods become inappropriate when applied to moisture-rich. biogas, and are often used in combination with a pre-treatment. stage. Development of more cost-effective technologies, such as. membrane separation and biofiltration is in progress, and initial. findings suggest that these methods could represent an attractive. alternative.

Keywords: biogas, siloxane, environmental engineering, technology, treatment.
Citation: Soreanu, G., M. Béland, P. Falletta, K. Edmonson, L. Svoboda, M. Al-Jamal and P. Seto. 2011. Approaches concerning siloxaneremoval from biogas -- A review. Canadian Biosystems Engineering 53: 8.1-8.18
Volume: 53
Issue: 8
Pages -
Date: 2011-03-10
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Coverage: Canada
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