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OALib Journal期刊
ISSN: 2333-9721
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qualitativeandquantitativeatr-ftiranalysisanditsapplicationtocoalcharofdifferentranks
, PP. 129-137
Keywords: qualitative,quantitative,ft-ir,coalchar
Abstract:
？thispaperanalyzesthecoaltocharstagesofcharformationofsixcoalsofdifferentranksbyusingfouriertransforminfraredcoupledwithattenuatedtotalreflectance(atr-ftir).thecharswereobtainedbycoalpyrolysiscarriedoutattemperaturerangeof450~700.thedataobtainedshowsthepragmaticdisappearanceofthealiphatichydrogencontentwithincreasingcharformationtemperature.numericalevaluationofthespectraenabledthedeterminationofaromaticity,fa.thearomaticitywasfoundtobebetween0.66~0.79forlignite,0.75~0.90forsub-bituminous,0.84~1.00forlowvolatilebituminous,0.83~1.00forhighvolatilebituminous,0.94~1.00forsemi-anthracite,and0.97~1.00foranthraciterespectively.withincreasingrankofcoalsamples,spectraexhibitrisingaromaticityandenhancedcondensationofaromaticrings,whereasthealiphaticchainlengthsdecrease.
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