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ID 34805
file
creator
Itakura, Masaya
Goto, Ikuhiro
Takahashi, Atsushi
Fujitani, Tadahiro
Ide, Yusuke
subject
Interzeolite conversion
FAU type zeolite
CHA type zeolite
Seed crystal
Ethanol conversion
NDC
Biology
abstract
The influence of seed crystals on the interzeolite conversion of FAU type zeolite into CHA type zeolite was investigated in the presence of benzyltrimethylammonium hydroxide as a structure-directing agent under various hydrothermal synthesis conditions. Pure and highly crystalline CHA type zeolites with a wide range of Si/Al ratios were obtained in a shorter crystallization time as compared with those obtained without seed crystals. Furthermore, we achieved the first successful synthesis of high-silica CHA type zeolite in the absence of Na(+) cations by increasing the seed content. The protonated CHA type zeolite with a Si/Al ratio of ca. 15 yielded the highest propylene yield of ca. 48 C-% in ethanol conversion into light olefins.
journal title
Microporous and Mesoporous Materials
volume
Volume 144
issue
Issue 1-3
start page
91
end page
96
date of issued
2011
publisher
Elsevier Science BV
issn
1387-1811
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
author
rights
(c) 2011 Elsevier B.V. All rights reserved.
relation url
department
Graduate School of Engineering