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Reduction Kinetics of Iron Ore-Graphite Composite Pellets: Some Studies on the Reduction Kinetics of Iron Ore-Graphite Composite Pellets in a Packed Bed Reactor - Softcover
Synopsis
The rate of reduction of iron ore-graphite composite pellets under inert and reducing atmospheres has been investigated in a tailor made thermo-gravimetric packed-bed reactor. A very low overall apparent activation energy estimated from experimental data indicates that the reduction is not chemical kinetics controlled. A kinetic model has been developed to quantify the temporal evolution of different iron oxide phases and metallic iron. The rate-dependent parameters (frequency factors and activation energy) have been estimated from experimental data by applying an optimization tool (Genetic Algorithm). The predicted phases at various degrees of reduction were verified by X-ray diffraction and metallographic investigation. A simplified thermal model has also been developed to show the role of heat transfer on the kinetics of the reduction process under inert atmosphere. The reduction kinetics of the composite pellets in the packed bed under reactive atmosphere is not heat transfer controlled and might possibly be controlled by CO-gas mass transfer through the pellets.
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About the Authors
Dr. Golap Mohammad Chowdhury; Deputy Manager, Iron & Sinter, Research & Develpoment Centre for Iron & Steel,SAIL,Ranchi,India. Dr. Gour Gopal Roy; Professor, Dept. of Metallurical & Materials Engg., IIT, Kharagpur, India. Dr. Sanat Kumar Roy; Professor & HoD, Dept. of Metallurical & Materials Engg., IIT, Kharagpur, India.
Dr. Golap Mohammad Chowdhury; Deputy Manager, Iron & Sinter, Research & Develpoment Centre for Iron & Steel,SAIL,Ranchi,India. Dr. Gour Gopal Roy; Professor, Dept. of Metallurical & Materials Engg., IIT, Kharagpur, India. Dr. Sanat Kumar Roy; Professor & HoD, Dept. of Metallurical & Materials Engg., IIT, Kharagpur, India.
Dr. Golap Mohammad Chowdhury; Deputy Manager, Iron & Sinter, Research & Develpoment Centre for Iron & Steel,SAIL,Ranchi,India. Dr. Gour Gopal Roy; Professor, Dept. of Metallurical & Materials Engg., IIT, Kharagpur, India. Dr. Sanat Kumar Roy; Professor & HoD, Dept. of Metallurical & Materials Engg., IIT, Kharagpur, India.
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- PublisherLAP LAMBERT Academic Publishing
- Publication date2010
- ISBN 10 384335782X
- ISBN 13 9783843357821
- BindingPaperback
- LanguageEnglish
- Number of pages112
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Reduction Kinetics of Iron Ore-Graphite Composite Pellets
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LAP LAMBERT Academic Publishing Nov 2010, 2010
ISBN 10: 384335782X
ISBN 13: 9783843357821
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Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The rate of reduction of iron ore-graphite composite pellets under inert and reducing atmospheres has been investigated in a tailor made thermo-gravimetric packed-bed reactor. A very low overall apparent activation energy estimated from experimental data indicates that the reduction is not chemical kinetics controlled. A kinetic model has been developed to quantify the temporal evolution of different iron oxide phases and metallic iron. The rate-dependent parameters (frequency factors and activation energy) have been estimated from experimental data by applying an optimization tool (Genetic Algorithm). The predicted phases at various degrees of reduction were verified by X-ray diffraction and metallographic investigation. A simplified thermal model has also been developed to show the role of heat transfer on the kinetics of the reduction process under inert atmosphere. The reduction kinetics of the composite pellets in the packed bed under reactive atmosphere is not heat transfer controlled and might possibly be controlled by CO-gas mass transfer through the pellets. 112 pp. Englisch. Seller Inventory # 9783843357821
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Reduction Kinetics of Iron Ore-Graphite Composite Pellets : Some Studies on the Reduction Kinetics of Iron Ore-Graphite Composite Pellets in a Packed Bed Reactor
Published by
LAP LAMBERT Academic Publishing, 2010
ISBN 10: 384335782X
ISBN 13: 9783843357821
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Taschenbuch. Condition: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - The rate of reduction of iron ore-graphite composite pellets under inert and reducing atmospheres has been investigated in a tailor made thermo-gravimetric packed-bed reactor. A very low overall apparent activation energy estimated from experimental data indicates that the reduction is not chemical kinetics controlled. A kinetic model has been developed to quantify the temporal evolution of different iron oxide phases and metallic iron. The rate-dependent parameters (frequency factors and activation energy) have been estimated from experimental data by applying an optimization tool (Genetic Algorithm). The predicted phases at various degrees of reduction were verified by X-ray diffraction and metallographic investigation. A simplified thermal model has also been developed to show the role of heat transfer on the kinetics of the reduction process under inert atmosphere. The reduction kinetics of the composite pellets in the packed bed under reactive atmosphere is not heat transfer controlled and might possibly be controlled by CO-gas mass transfer through the pellets. Seller Inventory # 9783843357821
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Reduction Kinetics of Iron Ore-Graphite Composite Pellets
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ISBN 10: 384335782X
ISBN 13: 9783843357821
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Condition: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: Chowdhury Dr. Golap MohammadDr. Golap Mohammad Chowdhury Deputy Manager, Iron & Sinter, Research & Develpoment Centre for Iron & Steel,SAIL,Ranchi,India. Dr. Gour Gopal Roy Professor, Dept. of Metallurical & Material. Seller Inventory # 5465762
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Reduction Kinetics of Iron Ore-Graphite Composite Pellets
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LAP LAMBERT Academic Publishing Nov 2010, 2010
ISBN 10: 384335782X
ISBN 13: 9783843357821
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Taschenbuch. Condition: Neu. Neuware -The rate of reduction of iron ore-graphite composite pellets under inert and reducing atmospheres has been investigated in a tailor made thermo-gravimetric packed-bed reactor. A very low overall apparent activation energy estimated from experimental data indicates that the reduction is not chemical kinetics controlled. A kinetic model has been developed to quantify the temporal evolution of different iron oxide phases and metallic iron. The rate-dependent parameters (frequency factors and activation energy) have been estimated from experimental data by applying an optimization tool (Genetic Algorithm). The predicted phases at various degrees of reduction were verified by X-ray diffraction and metallographic investigation. A simplified thermal model has also been developed to show the role of heat transfer on the kinetics of the reduction process under inert atmosphere. The reduction kinetics of the composite pellets in the packed bed under reactive atmosphere is not heat transfer controlled and might possibly be controlled by CO-gas mass transfer through the pellets.Books on Demand GmbH, Überseering 33, 22297 Hamburg 112 pp. Englisch. Seller Inventory # 9783843357821
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Reduction Kinetics of Iron Ore-Graphite Composite Pellets: Some Studies on the Reduction Kinetics of Iron Ore-Graphite Composite Pellets in a Packed Bed Reactor
Published by
LAP LAMBERT Academic Publishing, 2010
ISBN 10: 384335782X
ISBN 13: 9783843357821
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