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The effects of coal rank, temperature and residence time on the chemical composition of tar condensates

Pullin, Huw, Konstantinou, Eleni, Sapsford, Devin James and Marsh, Richard 2011. The effects of coal rank, temperature and residence time on the chemical composition of tar condensates. Presented at: 11th International Mine Water Association Congress (IMWA2011) – Mine Water – Managing the Challenges, Aachen, Germany, 4-11 September 2011. Published in: Rüde, R. T., Freund, A. and Wolkersdorfer, Ch. eds. Mine Water – Managing the Challenges. Aachen: IMWA, pp. 197-201.

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Experiments involving coal pyrolysis with subsequent capture and analysis of the devolatilised ‘tar’ products is presented, with the aim of providing information pertinent to developing groundwater risk assessments for underground coal gasification (and similar in-situ thermal process). Different coals were pyrolysed at different temperatures and for different lengths of time within a reactor, and the resultant volatilised components were captured by condensation and analysed by GC-MS for PAHs and phenols. Whilst a clear correlation was found between temperature and amounts of potential contaminants in the condensates, there was no clear correlation with the residence time of the parent coal within the furnace.

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: T Technology > TD Environmental technology. Sanitary engineering
Uncontrolled Keywords: UCG, Groundwater, Coal condensates
Publisher: IMWA
ISBN: 9781897009475
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Last Modified: 10 Jan 2018 04:05

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