Articles & Issues
- Language
- English
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
-
Received February 1, 2001
Accepted July 30, 2001
-
This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright © KIChE. All rights reserved.
All issues
Studies on the Preparation of C/SiC Composite as a Catalyst Support by CVI in a Fluidized Bed Reactor
Department of Chemical Engineering, Hongik University, 72-1 Sangsu-Dong, Mapo-Ku, Seoul 121-791, Korea
Korean Journal of Chemical Engineering, January 2002, 19(1), 167-174(8), 10.1007/BF02706891
Download PDF
Abstract
In this research, in order to improve the mechanical strength and oxidation resistance of a catalyst support, we studied the formation of SiC layer on the pore surfaces of activated carbons by permeating and depositing SiC from a reaction between hydrogen and dichlorodimethylsilane (DDS). The porous structure should be kept during deposition. A fluidized bed reactor and activated carbons of size of 20-40 mesh were used. By studying characteristics of deposits under various deposition conditions, we confirmed that the best conditions of manufacturing catalyst support are a lower pressure and a lower concentration. In this work, at the conditions of 5 torr of total pressure and 3% of DDS concentration, during the 10 hr processing time, deposition occurred on the pore walls before plugging pores. The results from the mathematical modeling were compared with the experimental results.
References
Cho MS, Kim JW, Chung GY, Korean J. Chem. Eng., 13(5), 515 (1996)
Chung GY, Cagliostro DE, McCoy BJ, Smith JM, "Rate of Chemical Vapor Deposition of SiC and Si on Single-Layer Woven Fabrics," NASA T.M. (1991)
Chung GY, McCoy BJ, J. Am. Ceram. Soc., 74(4), 746 (1991)
Chung GY, McCoy BJ, Smith JM, Cagliostro DE, Chem. Eng. Sci., 47(2), 311 (1992)
Hagen J, "Industrial Catalyst - A Practical Approach," Wiley-VCH, 28-29 (1999)
Hinoki T, Yang W, Nozawa T, Shibayama T, Katoh Y, Kohyama A, J. Nucl. Mater., 289, 23 (2001)
Hwang YG, Chun HS, Korean J. Chem. Eng., 16(6), 843 (1999)
Kim YM, Song JS, Park SW, Lee JG, J. Mater. Sci., 28, 3866 (1993)
Kobayashi F, Kawa KI, Iwamoto K, J. Cryst. Growth, 28, 395 (1976)
Naslain R, "Carbon-ceramic Hybrid Matrix Composites Obtained by Chemical Vapor Infiltration," Proceeding in the 1st Int. Symp. on Functionally Gradient Materials, 71 (1990)
Naslain R, Hannache H, Heraud L, Rossignol JY, Christin F, Bernard C, "Chemical Vapor Infiltration Technique," Proc. 4th European Conf. on Chemical Vapor Deposition, 293 (1983)
Sea BK, Choo SY, Lee TJ, Morooka S, Song SK, Korean J. Chem. Eng., 12(4), 416 (1995)
Seo G, Kim TJ, Lim S, Ko CH, Ryoo R, Korean J. Chem. Eng., 15(6), 611 (1998)
Sugiyama K, Kurisu Y, J. Mater. Sci., 24, 3756 (1989)
van den Brekel, Fonville RMM, van der Straten PJM, Verspui G, Proc. Electrochem. Soc., 81, 142 (1981)
Xiao P, Xu YD, Zhang LT, Cheng LF, Chen ZF, Mater. Sci. Eng., A313, 244 (2001)
Xu Y, Cheng L, Zhang L, Carbon, 37, 1179 (1999)
Yin X, Cheng L, Zhang L, Xu Y, You C, Mater. Sci. Eng., A290, 89 (2000)
Chung GY, Cagliostro DE, McCoy BJ, Smith JM, "Rate of Chemical Vapor Deposition of SiC and Si on Single-Layer Woven Fabrics," NASA T.M. (1991)
Chung GY, McCoy BJ, J. Am. Ceram. Soc., 74(4), 746 (1991)
Chung GY, McCoy BJ, Smith JM, Cagliostro DE, Chem. Eng. Sci., 47(2), 311 (1992)
Hagen J, "Industrial Catalyst - A Practical Approach," Wiley-VCH, 28-29 (1999)
Hinoki T, Yang W, Nozawa T, Shibayama T, Katoh Y, Kohyama A, J. Nucl. Mater., 289, 23 (2001)
Hwang YG, Chun HS, Korean J. Chem. Eng., 16(6), 843 (1999)
Kim YM, Song JS, Park SW, Lee JG, J. Mater. Sci., 28, 3866 (1993)
Kobayashi F, Kawa KI, Iwamoto K, J. Cryst. Growth, 28, 395 (1976)
Naslain R, "Carbon-ceramic Hybrid Matrix Composites Obtained by Chemical Vapor Infiltration," Proceeding in the 1st Int. Symp. on Functionally Gradient Materials, 71 (1990)
Naslain R, Hannache H, Heraud L, Rossignol JY, Christin F, Bernard C, "Chemical Vapor Infiltration Technique," Proc. 4th European Conf. on Chemical Vapor Deposition, 293 (1983)
Sea BK, Choo SY, Lee TJ, Morooka S, Song SK, Korean J. Chem. Eng., 12(4), 416 (1995)
Seo G, Kim TJ, Lim S, Ko CH, Ryoo R, Korean J. Chem. Eng., 15(6), 611 (1998)
Sugiyama K, Kurisu Y, J. Mater. Sci., 24, 3756 (1989)
van den Brekel, Fonville RMM, van der Straten PJM, Verspui G, Proc. Electrochem. Soc., 81, 142 (1981)
Xiao P, Xu YD, Zhang LT, Cheng LF, Chen ZF, Mater. Sci. Eng., A313, 244 (2001)
Xu Y, Cheng L, Zhang L, Carbon, 37, 1179 (1999)
Yin X, Cheng L, Zhang L, Xu Y, You C, Mater. Sci. Eng., A290, 89 (2000)
