Synthesis of high-silica CHA type zeolite by interzeolite conversion of FAU type zeolite in the presence of seed crystals
Microporous and Mesoporous Materials Volume 144 Issue 1-3
Page 91-96
published_at 2011
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| File | |
| Title ( eng ) |
Synthesis of high-silica CHA type zeolite by interzeolite conversion of FAU type zeolite in the presence of seed crystals
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| Creator |
Itakura Masaya
Goto Ikuhiro
Takahashi Atsushi
Fujitani Tadahiro
Ide Yusuke
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| Source Title |
Microporous and Mesoporous Materials
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| Volume | 144 |
| Issue | 1-3 |
| Start Page | 91 |
| End Page | 96 |
| 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.
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| Keywords |
Interzeolite conversion
FAU type zeolite
CHA type zeolite
Seed crystal
Ethanol conversion
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| NDC |
Biology [ 460 ]
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| Language |
eng
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| Resource Type | journal article |
| Publisher |
Elsevier Science BV
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| Date of Issued | 2011 |
| Rights |
(c) 2011 Elsevier B.V. All rights reserved.
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| Publish Type | Author’s Original |
| Access Rights | open access |
| Source Identifier |
[ISSN] 1387-1811
[DOI] 10.1016/j.micromeso.2011.03.041
[NCID] AA11538251
[DOI] http://dx.doi.org/10.1016/j.micromeso.2011.03.041
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