Development of on-line FTIR spectroscopy for siloxane detection in biogas to enhance carbon contactor management

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dc.contributor.authorHepburn, Caroline
dc.contributor.authorVale, P.
dc.contributor.authorBrown, A. S.
dc.contributor.authorSimms, Nigel J.
dc.contributor.authorMcAdam, Ewan J.
dc.date.accessioned2016-03-10T16:40:26Z
dc.date.available2016-03-10T16:40:26Z
dc.date.issued2015-04-04
dc.description.abstractActivated carbon filters are used to limit engine damage by siloxanes when biogas is utilised to provide electricity. However, carbon filter siloxane removal performance is poorly understood as until recently, it had not been possible to measure siloxanes on-line. In this study, on-line Fourier Transform Infrared (FTIR) spectroscopy was developed to measure siloxane concentration in real biogas both upstream (86.1–157.5 mg m−3) and downstream (2.2–4.3 mg m−3) of activated carbon filters. The FTIR provided reasonable precision upstream of the carbon vessel with a root mean square error of 10% using partial least squares analysis. However, positive interference from volatile organic carbons was observed in downstream gas measurements limiting precision at the outlet to an RMSE of 1.5 mg m−3 (47.8%). Importantly, a limit of detection of 3.2 mg m−3 was identified which is below the recommended siloxane limit and evidences the applicability of on-line FTIR for this application.en_UK
dc.identifier.citationHepburn CA, Vale P, Brown AS, et al., (2015) Development of on-line FTIR spectroscopy for siloxane detection in biogas to enhance carbon contactor managemen. Talanta, Volume 141, August 2015, pp. 128-136en_UK
dc.identifier.issn0039-9140
dc.identifier.urihttp://dx.doi.org/10.1016/j.talanta.2015.03.063
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/9781
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution 3.0 Unporteden_UK
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/
dc.subjectAdsorptionen_UK
dc.subjectBiogasen_UK
dc.subjectCHPen_UK
dc.subjectLandfillen_UK
dc.subjectInterferenceen_UK
dc.subjectVOCsen_UK
dc.titleDevelopment of on-line FTIR spectroscopy for siloxane detection in biogas to enhance carbon contactor managementen_UK
dc.typeArticleen_UK

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