1999 Fiscal Year Final Research Report Summary
Preparation and estimation of zeolite membrane by VPT method and
| Project/Area Number |
09555247
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 展開研究 |
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| Research Field |
触媒・化学プロセス
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| Research Institution | Waseda University |
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Principal Investigator |
MATSUKATA Masahiko Waseda University, School of Science and Engineering, Associate Professor, 理工学部, 助教授 (00219411)
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| Co-Investigator(Kenkyū-buntansha) |
ITABASHI Keiji Toso corp., Nanyo Inst., Associate Researcher, 南陽研究所, 主任研究員
NOMURA Mikihira School of Sci.and Eng., Associate Researcher, 理工学部, 助手 (50308194)
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| Project Period (FY) |
1997 – 1999
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| Keywords | zeolite membrane / MFI zeolite / gas separation / adsorption / pervaporation / BEA zeolite / Steam treating / Silica / Alumina Ratio |
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| Research Abstract |
MFI-type zeolitic membranes were prepared by a vapor-phase transport (VPT) method on porous alpha-alumina flat disks. Single-and mixed-gas permeation measurements of butane isomers were performed in the temperature range of 300-375 K.The separation factor was always greater than the ideal selectivity. This result is explained by the preferential adsorption of n-butane on MFI in the binary system.
The pervaporation tests for xylene isomers were performed at 303 K.p-Xylene was the most permeable component in the unary system. In the permeation measurements of a binary mixture of p-xylene/m-xylene and a ternary mixture of p-xylene/m-xylene/o-xylene, p-xylene predominantly permeated in the early stage, and then, the Aux of p-xylene decreased gradually and finally became lower than that of the other xylene isomers. The adsorption of m-xylene in the pores of MFI seemed to block the permeation of p-xylene.
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