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A critique of thermokinetic analysis in solids processing: Cement industry as a case study

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Title A critique of thermokinetic analysis in solids processing: Cement industry as a case study
 
Creator GHOROI, C
VENKATESWARAN, D
SURESH, AK
 
Subject NONISOTHERMAL REACTION-KINETICS
RANDOM PORE MODEL
THERMAL-ANALYSIS
TRICALCIUM ALUMINATE
ACTIVATION-ENERGY
STATE REACTIONS
CONTACT POINTS
DECOMPOSITION
TEMPERATURE
PARTICLES
Thermal analysis
Solid-solid reactions
Multi-step kinetics
Intermediate
Kinetic model
Cement phase
 
Description The study of reactive processes involving solid phases represents a considerable challenge, especially when multiple reactions are involved. The formation of cement clinker, from naturally occurring raw materials, typifies the challenges. Thermal analysis techniques have greatly accelerated the pace of research in this area. In most cases, isothermal reaction studies and use of other instrumental methods have been replaced by programmed temperature studies, facilitated by sophisticated instrumentation and data analysis packages available for thermal analysis. In this paper, we examine the consequences of such exclusive dependence on thermal methods, to plant practice on the one hand, and to fundamental investigations on the other. We do this, drawing on our recent studies on some of the sub-processes in cement manufacture. Possible artifacts which have to be guarded against in routine applications of these methods, and areas which are in urgent need of research inputs are highlighted. (C) 2015 Elsevier B.V. All rights reserved.
 
Publisher ELSEVIER SCIENCE BV
 
Date 2016-01-15T05:50:30Z
2016-01-15T05:50:30Z
2015
 
Type Article
 
Identifier THERMOCHIMICA ACTA, 618,56-66
0040-6031
1872-762X
http://dx.doi.org/10.1016/j.tca.2015.09.010
http://dspace.library.iitb.ac.in/jspui/handle/100/17858
 
Language en