Dehydration of ethanol to ethylene over La-HZSM-5 catalyst

Guodong Su; He Huang; Yuanhai Cheng; Yaochi Hu; Yi Hu

Dehydration of ethanol to ethylene over La-HZSM-5 catalyst

Guodong Su, He Huang, Yuanhai Cheng, Yaochi Hu, Yi Hu

School of Pharmaceutical Sciences

Nanjing Tech University

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

1 Scopus citations

Abstract

The effects of ethanol concentration, temperature and liquid hourly space velocity(LHSV) on dehydration of ethanol to ethylene over 3%La-HZSM-5 molecular seive catalyst(loading La mass fraction 3%) were investigated in a fixed bed(Ø45 mm × 600 mm). The catalysts were characterized by X-ray diffraction(XRD), NH₃ temperature programmed desorption(NH₃-TPD), N₂ adsorption-desorption and thermogravimetric-differential scanning calorimeter(TG-DSC) and particle strength tests. And the stability of the catalysts were investigated. The results showed that the catalyst exhibited good catalytic performance for ethanol dehydration, good regeneration ability, good strength and stability. Ethanol conversion and ethylene selectivity were both above 98% under the conditions of ethanol mass concentration 50%, LHSV 1.1 h^-1 and 260°C. The single pass lifetime of the catalyst was up to 900 h.

Original language	English
Pages (from-to)	46-51
Number of pages	6
Journal	Huaxue Fanying Gongcheng Yu Gongyi/Chemical Reaction Engineering and Technology
Volume	25
Issue number	1
State	Published - Feb 2009

Keywords

Ethanol dehydration
Ethylene
HZSM-5 molecular seive

Cite this

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title = "Dehydration of ethanol to ethylene over La-HZSM-5 catalyst",

abstract = "The effects of ethanol concentration, temperature and liquid hourly space velocity(LHSV) on dehydration of ethanol to ethylene over 3%La-HZSM-5 molecular seive catalyst(loading La mass fraction 3%) were investigated in a fixed bed({\O}45 mm × 600 mm). The catalysts were characterized by X-ray diffraction(XRD), NH3 temperature programmed desorption(NH3-TPD), N2 adsorption-desorption and thermogravimetric-differential scanning calorimeter(TG-DSC) and particle strength tests. And the stability of the catalysts were investigated. The results showed that the catalyst exhibited good catalytic performance for ethanol dehydration, good regeneration ability, good strength and stability. Ethanol conversion and ethylene selectivity were both above 98% under the conditions of ethanol mass concentration 50%, LHSV 1.1 h-1 and 260°C. The single pass lifetime of the catalyst was up to 900 h.",

keywords = "Ethanol dehydration, Ethylene, HZSM-5 molecular seive",

author = "Guodong Su and He Huang and Yuanhai Cheng and Yaochi Hu and Yi Hu",

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T1 - Dehydration of ethanol to ethylene over La-HZSM-5 catalyst

AU - Su, Guodong

AU - Huang, He

AU - Cheng, Yuanhai

AU - Hu, Yaochi

AU - Hu, Yi

PY - 2009/2

Y1 - 2009/2

N2 - The effects of ethanol concentration, temperature and liquid hourly space velocity(LHSV) on dehydration of ethanol to ethylene over 3%La-HZSM-5 molecular seive catalyst(loading La mass fraction 3%) were investigated in a fixed bed(Ø45 mm × 600 mm). The catalysts were characterized by X-ray diffraction(XRD), NH3 temperature programmed desorption(NH3-TPD), N2 adsorption-desorption and thermogravimetric-differential scanning calorimeter(TG-DSC) and particle strength tests. And the stability of the catalysts were investigated. The results showed that the catalyst exhibited good catalytic performance for ethanol dehydration, good regeneration ability, good strength and stability. Ethanol conversion and ethylene selectivity were both above 98% under the conditions of ethanol mass concentration 50%, LHSV 1.1 h-1 and 260°C. The single pass lifetime of the catalyst was up to 900 h.

AB - The effects of ethanol concentration, temperature and liquid hourly space velocity(LHSV) on dehydration of ethanol to ethylene over 3%La-HZSM-5 molecular seive catalyst(loading La mass fraction 3%) were investigated in a fixed bed(Ø45 mm × 600 mm). The catalysts were characterized by X-ray diffraction(XRD), NH3 temperature programmed desorption(NH3-TPD), N2 adsorption-desorption and thermogravimetric-differential scanning calorimeter(TG-DSC) and particle strength tests. And the stability of the catalysts were investigated. The results showed that the catalyst exhibited good catalytic performance for ethanol dehydration, good regeneration ability, good strength and stability. Ethanol conversion and ethylene selectivity were both above 98% under the conditions of ethanol mass concentration 50%, LHSV 1.1 h-1 and 260°C. The single pass lifetime of the catalyst was up to 900 h.

KW - Ethanol dehydration

KW - Ethylene

KW - HZSM-5 molecular seive

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M3 - 文章

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SN - 1001-7631

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JO - Huaxue Fanying Gongcheng Yu Gongyi/Chemical Reaction Engineering and Technology

JF - Huaxue Fanying Gongcheng Yu Gongyi/Chemical Reaction Engineering and Technology

IS - 1

ER -

Dehydration of ethanol to ethylene over La-HZSM-5 catalyst

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