Recommendations for the Production of Silicon Carbide-derived Carbon Based on Intrinsic Kinetic Data

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Knorr T, Strobl F, Glenk F, Etzold B
Zeitschrift: Chemical Engineering & Technology
Jahr der Veröffentlichung: 2012
Band: 35
Heftnummer: 8
Seitenbereich: 1495-1503
ISSN: 0930-7516


Abstract

Recommendations for mode of operation and critical dimensions regarding inner mass transfer limitation were deduced for the technical extraction of silicon from silicon carbide to produce nanoporous carbon (carbide-derived carbon, CDC). The recommendations are based on intrinsic kinetics derived from experimental data and reaction engineering simulation of the transient process (shrinking-core like mechanism). As the reaction takes place at 1000 °C under chlorine atmosphere, kinetic data as well as diffusion coefficients are extracted from integral conversion data in a lab scale reactor. The reaction rate dependency for varying chlorine concentrations is represented best by a Hougen-Watson type rate approach with dissociative adsorption of a reactant. From the experimental data the effective diffusion coefficient of chlorine in the resulting nanoporous carbon could also be derived to 4 · 10--8 m2s--1 at 1000 °C.


FAU-Autoren / FAU-Herausgeber

Etzold, Bastian Prof. Dr.
Professur für Katalytische Materialien
Glenk, Friedrich
Lehrstuhl für Chemische Reaktionstechnik
Knorr, Tilman Dr.-Ing.
Lehrstuhl für Chemische Reaktionstechnik
Strobl, Florian
Lehrstuhl für Chemische Reaktionstechnik


Zusätzliche Organisationseinheit(en)
Exzellenz-Cluster Engineering of Advanced Materials


Zitierweisen

APA:
Knorr, T., Strobl, F., Glenk, F., & Etzold, B. (2012). Recommendations for the Production of Silicon Carbide-derived Carbon Based on Intrinsic Kinetic Data. Chemical Engineering & Technology, 35(8), 1495-1503. https://dx.doi.org/10.1002/ceat.201200110

MLA:
Knorr, Tilman, et al. "Recommendations for the Production of Silicon Carbide-derived Carbon Based on Intrinsic Kinetic Data." Chemical Engineering & Technology 35.8 (2012): 1495-1503.

BibTeX: 

Zuletzt aktualisiert 2019-16-03 um 05:08