Browse > Article

Stability of a Silica Membrane in the HI-$H_2O$ Gaseous Mixture  

HWANG Gab-Jin (한국에너지기술연구원 수소에너지연구센터)
PARK Chu-Sik (한국에너지기술연구원 수소에너지연구센터)
LEE Sang-Ho (한국에너지기술연구원 수소에너지연구센터)
Choi Ho-Sang (경일대학교 화학공학과)
Publication Information
Membrane Journal / v.14, no.3, 2004 , pp. 201-206 More about this Journal
Abstract
The stability of the prepared silica membrane by chemical vapor deposition (CVD) method in the HI-$H_2O$ gaseous mixture was evaluated aiming at the application for hydrogen iodide decomposition in the thermochemical IS process. Porous $\alpha$-alumina having pore size of 100 nm was modified by the different CVD temperature using tetraethoxysilane as the Si source. The CVD temperature was $700^{\circ}C$, $650^{\circ}C$, and $600^{\circ}C$. The $H_2$/H$_2$ selectivities of the modified membranes which were measured by single-component permeation experiment showed 43.2, 12.6, and 8.7 at $600^{\circ}C$ for the M1 (CVD temperature was $700^{\circ}C$), M2 (CVD temperature was $650^{\circ}C$) and M3 membranes (CVD temperature was $600^{\circ}C$), respectively. Stability experiment in the HI-$H_2O$ gaseous mixture was carried out at $450^{\circ}C$. The prepared silica membrane at $600^{\circ}C$ of CVD temperature was more stable than that at the other CVD temperature.
Keywords
inorganic membrane; Silica alumina membrane; Chemical vapor deposition; Gas separation; Hydrogen permselectivity;
Citations & Related Records
연도 인용수 순위
  • Reference
1 G.-J. Hwang, K. Onuki, S. Shimizu, and H. Ohya, 'Hydrogen separation in $H_2-H_2O$-HI gaseous mixture using the silica membranes prepared by chemical vapor deposition', J. Memb. Sci., 162, 83 (1999)
2 G.-J. Hwang and K. Onuki, 'Simulation study on the catalytic decomposition of hydrogen iodide in a membrane reactor with a silica membrane for the thermochemical water splitting IS process', J. Memb. Sci., 194, 207 (2001)
3 G.-J. Hwang, J.-W. Kim, H.-S. Choi, and K. Onuki, 'Stability of a silica membrane prepared by CVD using $\gamma$- and $\alpha$-alumina tube as the support tube in the HI-$H_2O$ gaseous mixture', J. Memb. Sci., 215, 293 (2003)
4 S. Kim and G. R. Gavalas, 'Preparation of $H_2$ permselective silica membranes by alternating reactant vapor deposition', Ind. Eng. Chem. Res., 34, 168 (1995)
5 F. S. Becker, D. P awlik, H. Schafer, and G. Staudigl, 'Process and film characterization of low pressure tetraethylorthosilicate borophosphosilicate glass', J. Vac. Sci. Technol. B, 4(3), 732 (1986)
6 S. W. Nam and G. R. Gavalas, 'Stability of $H_2$ pennselective $SiO_2$ films formed by chemical vapor deposition', AIChE Symp. Ser., 85(268), 68 (1989)
7 J. C. S. Wu, H. Sabol, G. W. Smith, D. L. Flowers, and P. K. T Liu, 'Characterization of hydrogen permselective microporous ceramic membranes', J. Memb. Sci., 96, 275 (1994)
8 G.-J. Hwang, K. Onuki, and S. Shimizu, 'Studies on hydrogen separation membrane for IS process Membrane preparation with porous a-alumina tube', JAERI, Research Rep. 98 002, JAERI, Ibaraki, Japan (1998)
9 G. R. Gallaher and P. K. T. Liu, 'Characterization of ceramic membranes I. Thermal an hydrothermal stabilities of commercial 40 membranes', J. Memb. Sci., 92, 29 (1994)
10 H. Y. Ha, S. W. Nam, S.-A. Hong, and W. K. Lee, 'Chemical vapor deposition of hydrogen permselective silica film on porous glass supports from tetraethylorthosilicate', J. Memb. Sci., 85, 279 (1993)
11 S. Morooka, S. S. Kim, S. Yan, K. Kusakabe, and M. Watanabe, 'Separation of hydrogen from an $H_2-H_2O$-HBr system with an $SiO_2$ membrane formed in macropores of an $\alpha$-alumina support tube', Int. J. Hydrogen Energy, 21(3), 183 (1996)
12 S. Yan, H. Maeda, K. Kusakabe, and S. Morooka, 'Hydrogen permselective $SiO_2$ membrane formed in pores of alumina support tube by chemical vapor deposition with tetraethylorthosilicate', Ind. Eng. Chem. Res., 33, 2096 (1994)
13 H. Nakajima, K. Ikenoya, K. Onuki, and S. Shimizu, 'Closed cycle continuous hydrogen production test by themochemical IS process', Kagaku Kougaku Ronbunshu, 24(2), 352 (1998)
14 M. Tsapatis and G. Gavalas, 'Structure and aging characteristics of $H_2$ permselective $SiO_2$ vycor membranes', J. Memb. Sci., 87, 281 (1994)
15 G. Xomeritakis and Y. S. Lin, 'Fabrication of a thin palladium membrane supported in a porous ceramic substrate by chemical vapor deposition', J. Memb. Sci., 120, 261 (1996)
16 G.-J. Hwang, K. Onuki, and S. Shimizu, 'Separation of Hydrogen from $H_2-H_2O$-HI gaseous mixture using a silica membrane', AIChE. J., 46(1), 92 (2000)