Megalopolis lignite drying kinetics based on TGA experimental results

Androutsopoulos, GP

dc.contributor.author	Androutsopoulos, GP	en
dc.date.accessioned	2014-03-01T01:06:37Z
dc.date.available	2014-03-01T01:06:37Z
dc.date.issued	1986	en
dc.identifier.issn	0009-2509	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/9515
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0022581717&partnerID=40&md5=7ec5de3514296d75f73fca489a2e7ea9	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.other	CHEMICAL EQUIPMENT - Design	en
dc.subject.other	KINETIC MODEL	en
dc.subject.other	MEGALOPOLIS LIGNITE DRYING	en
dc.subject.other	SINGLE-PARTICLE SYSTEM	en
dc.subject.other	LIGNITE	en
dc.title	Megalopolis lignite drying kinetics based on TGA experimental results	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1986	en
heal.abstract	Lignite drying kinetic data are of critical importance for the design of drying and occasionally gasification process equipment because of the particularly high (55-60%) moisture content held in the lignite particles. A lumped kinetic model, Rd(t) = ηkd(T)(W* - W(t))nd(T), describing the dependence of the drying rate upon the residual moisture content (dry basis) of lignite single-particle systems is proposed in this paper. The mathematical analysis is based on data obtained from TGA experimental studies carried out on lumps or on samples of pulverized Greek (Megalopolis) lignite in a nitrogen atmosphere under transient temperature conditions. (A rate of temperature rise 20°C/min, up to 100°C, was applied.) The temperature dependence of both the relevant rate constant and the kinetic order was determined by the best fit of the theoretical model to the relevant experimental data. Megalopolis lignite drying can be described satisfactorily by the kinetic equation {A figure is presented} η = f(dp) and T = f′(t) are described graphically in the text. © 1986.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	Chemical Engineering Science	en
dc.identifier.isi	ISI:A1986D764600011	en
dc.identifier.volume	41	en
dc.identifier.issue	8	en
dc.identifier.spage	2053	en
dc.identifier.epage	2059	en