Synthesis of LEV zeolite by interzeolite conversion method and its catalytic performance in ethanol to olefins reaction

Takayuki Inoue; Masaya Itakura; Hery Jon; Yasunori Oumi; Atsushi Takahashi; Tadahiro Fujitani; Tsuneji Sano

doi:10.1016/j.micromeso.2009.02.027

Synthesis of LEV zeolite by interzeolite conversion method and its catalytic performance in ethanol to olefins reaction

Takayuki Inoue, Masaya Itakura, Hery Jon, Yasunori Oumi, Atsushi Takahashi, Tadahiro Fujitani, Tsuneji Sano

ENG - Chemical Engineering

Research output: Contribution to journal › Article › peer-review

95 Citations (Scopus)

Abstract

The highly crystalline and pure LEV zeolite was obtained from the hydrothermal conversion of FAU zeolite as a crystalline aluminosilicate source in the presence of choline hydroxide. As LEV zeolite was not obtained from a conventional amorphous aluminosilicate gel, the advantage and uniqueness of the hydrothermal conversion of FAU zeolite was proven. The hydrothermal conversion of FAU zeolite into LEV zeolite depended significantly upon the Si/Al ratio of the starting FAU zeolite. Only the FAU zeolites with Si/Al ratios of 16-22 were converted into LEV zeolite. Most of all choline species as a SDA existed intact in zeolitic pores. As expected, the protonated LEV zeolite exhibited a good performance for conversion of ethanol to light olefins. The product yields were 35.8% of C₂H₄ and 34.4% of C₃H₆.

Original language	English
Pages (from-to)	149-154
Number of pages	6
Journal	Microporous and Mesoporous Materials
Volume	122
Issue number	1-3
DOIs	https://doi.org/10.1016/j.micromeso.2009.02.027
Publication status	Published - 2009 Jun 1

Keywords

Choline hydroxide
Ethanol conversion
FAU zeolite
Interzeolite conversion
LEV zeolite

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10.1016/j.micromeso.2009.02.027

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title = "Synthesis of LEV zeolite by interzeolite conversion method and its catalytic performance in ethanol to olefins reaction",

abstract = "The highly crystalline and pure LEV zeolite was obtained from the hydrothermal conversion of FAU zeolite as a crystalline aluminosilicate source in the presence of choline hydroxide. As LEV zeolite was not obtained from a conventional amorphous aluminosilicate gel, the advantage and uniqueness of the hydrothermal conversion of FAU zeolite was proven. The hydrothermal conversion of FAU zeolite into LEV zeolite depended significantly upon the Si/Al ratio of the starting FAU zeolite. Only the FAU zeolites with Si/Al ratios of 16-22 were converted into LEV zeolite. Most of all choline species as a SDA existed intact in zeolitic pores. As expected, the protonated LEV zeolite exhibited a good performance for conversion of ethanol to light olefins. The product yields were 35.8% of C2H4 and 34.4% of C3H6.",

keywords = "Choline hydroxide, Ethanol conversion, FAU zeolite, Interzeolite conversion, LEV zeolite",

author = "Takayuki Inoue and Masaya Itakura and Hery Jon and Yasunori Oumi and Atsushi Takahashi and Tadahiro Fujitani and Tsuneji Sano",

year = "2009",

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doi = "10.1016/j.micromeso.2009.02.027",

language = "English",

volume = "122",

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TY - JOUR

T1 - Synthesis of LEV zeolite by interzeolite conversion method and its catalytic performance in ethanol to olefins reaction

AU - Inoue, Takayuki

AU - Itakura, Masaya

AU - Jon, Hery

AU - Oumi, Yasunori

AU - Takahashi, Atsushi

AU - Fujitani, Tadahiro

AU - Sano, Tsuneji

PY - 2009/6/1

Y1 - 2009/6/1

N2 - The highly crystalline and pure LEV zeolite was obtained from the hydrothermal conversion of FAU zeolite as a crystalline aluminosilicate source in the presence of choline hydroxide. As LEV zeolite was not obtained from a conventional amorphous aluminosilicate gel, the advantage and uniqueness of the hydrothermal conversion of FAU zeolite was proven. The hydrothermal conversion of FAU zeolite into LEV zeolite depended significantly upon the Si/Al ratio of the starting FAU zeolite. Only the FAU zeolites with Si/Al ratios of 16-22 were converted into LEV zeolite. Most of all choline species as a SDA existed intact in zeolitic pores. As expected, the protonated LEV zeolite exhibited a good performance for conversion of ethanol to light olefins. The product yields were 35.8% of C2H4 and 34.4% of C3H6.

AB - The highly crystalline and pure LEV zeolite was obtained from the hydrothermal conversion of FAU zeolite as a crystalline aluminosilicate source in the presence of choline hydroxide. As LEV zeolite was not obtained from a conventional amorphous aluminosilicate gel, the advantage and uniqueness of the hydrothermal conversion of FAU zeolite was proven. The hydrothermal conversion of FAU zeolite into LEV zeolite depended significantly upon the Si/Al ratio of the starting FAU zeolite. Only the FAU zeolites with Si/Al ratios of 16-22 were converted into LEV zeolite. Most of all choline species as a SDA existed intact in zeolitic pores. As expected, the protonated LEV zeolite exhibited a good performance for conversion of ethanol to light olefins. The product yields were 35.8% of C2H4 and 34.4% of C3H6.

KW - Choline hydroxide

KW - Ethanol conversion

KW - FAU zeolite

KW - Interzeolite conversion

KW - LEV zeolite

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DO - 10.1016/j.micromeso.2009.02.027

M3 - Article

AN - SCOPUS:64549099352

SN - 1387-1811

VL - 122

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JO - Microporous and Mesoporous Materials

JF - Microporous and Mesoporous Materials

IS - 1-3

ER -

Synthesis of LEV zeolite by interzeolite conversion method and its catalytic performance in ethanol to olefins reaction

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Keywords

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