Overall kinetic study of non-isothermal decomposition of calcium carbonate

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dc.contributor.author Loannou, Z en
dc.contributor.author Zoumpoulakis, L en
dc.contributor.author Halikia, I en
dc.contributor.author Teloniati, T en
dc.date.accessioned 2014-03-01T01:58:47Z
dc.date.available 2014-03-01T01:58:47Z
dc.date.issued 2009 en
dc.identifier.issn 03719553 en
dc.identifier.uri http://hdl.handle.net/123456789/28727
dc.subject Calcium carbonate en
dc.subject Decomposition kinetics en
dc.subject Derivative thermogravimetry en
dc.subject Thermogravimetry en
dc.subject.other Calcium carbonate en
dc.subject.other Comparative studies en
dc.subject.other Continuous flows en
dc.subject.other Controlled reactions en
dc.subject.other Cylindrical geometry en
dc.subject.other Decomposition kinetics en
dc.subject.other Derivative thermogravimetry en
dc.subject.other Kinetic analysis en
dc.subject.other Kinetic models en
dc.subject.other Kinetic study en
dc.subject.other Mean values en
dc.subject.other Nitrogen atmospheres en
dc.subject.other Non-isothermal decomposition en
dc.subject.other Non-isothermal method en
dc.subject.other Preexponential factor en
dc.subject.other Thermal decompositions en
dc.subject.other Thermogravimetric experiments en
dc.subject.other Thermogravimetry en
dc.subject.other Activation energy en
dc.subject.other Calcium en
dc.subject.other Calcium alloys en
dc.subject.other Carbonates en
dc.subject.other Carbonation en
dc.subject.other Kinetic theory en
dc.subject.other Pyrolysis en
dc.subject.other Thermogravimetric analysis en
dc.title Overall kinetic study of non-isothermal decomposition of calcium carbonate en
heal.type journalArticle en
heal.identifier.primary 10.1179/174328509X393240 en
heal.identifier.secondary http://dx.doi.org/10.1179/174328509X393240 en
heal.publicationDate 2009 en
heal.abstract The present paper is a comparative study of six different non-isothermal methods of kinetic analysis for the determination of the mechanism of the thermal decomposition of CaC03 from thermogravimetric experiments. The whole experiment was carried out in a thermogravimetric analyser with nitrogen atmosphere up to 1100°C and at five different heating rates, i.e. 5, 10, 20, 30 and 40 K min-1. Applying each of these methods, the kinetic parameters of the reaction are evaluated and an assessment is made for the kinetic model that best represents the mechanism of the decomposition. The mean value of the activation energy under continuous flow of nitrogen is E=176-3-176-4 kJ mol0-1. The value of the pre-exponential factor is In (Amean/s-1)=13-7 according to model dependent methods and the phase boundary controlled reaction of cylindrical geometry is the kinetic model, which describes best the calcium carbonate decomposition. © 2009 Institute of Materials. en
heal.journalName Transactions of the Institutions of Mining and Metallurgy, Section C: Mineral Processing and Extractive Metallurgy en
dc.identifier.doi 10.1179/174328509X393240 en
dc.identifier.volume 118 en
dc.identifier.issue 2 en
dc.identifier.spage 98 en
dc.identifier.epage 104 en

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