Effect of preparation method for γ-Al2O3 catalyst on dehydration of ethanol

Hui Li; Yi Hu; Guodong Su; Yuanhai Cheng; He Huang

Effect of preparation method for γ-Al₂O₃ catalyst on dehydration of ethanol

Hui Li, Yi Hu, Guodong Su, Yuanhai Cheng, He Huang

School of Pharmaceutical Sciences

Nanjing Tech University

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

2 Scopus citations

Abstract

γ-Al₂O₃ catalysts for dehydration of ethanol to ethylene were prepared by both sol-gel and precipitation methods, and characterized by means of XRD, TG, N₂ adsorption-desorption and NH₃-TPD. The activities of ethanol dehydration on the two γ-Al₂O₃ catalysts were observed. Effects of -OH group density and surface acidity of the catalysts were analyzed. The catalyst prepared by sol-gel method was higher in surface acidity and was more active in the dehydration. Under optimal conditions: 350°C, LHSV of ethanol 0.6 h^-l and ethanol mass fraction in feed 92.4%, ethanol conversion and selectivity to ethylene on γ-Al₂O₃ catalyst prepared by sol-gel method could reach 99.3% and 97.7%, respectively.

Original language	English
Pages (from-to)	373-378
Number of pages	6
Journal	Petrochemical Technology
Volume	38
Issue number	4
State	Published - Apr 2009

Keywords

Catalyst
Ethanol dehydration
Ethylene
Precipitation method
Sol-gel method
γ-alumina

Cite this

@article{c33e707604cc4c4b8166de3215dafaed,

title = "Effect of preparation method for γ-Al2O3 catalyst on dehydration of ethanol",

abstract = "γ-Al2O3 catalysts for dehydration of ethanol to ethylene were prepared by both sol-gel and precipitation methods, and characterized by means of XRD, TG, N2 adsorption-desorption and NH3-TPD. The activities of ethanol dehydration on the two γ-Al2O3 catalysts were observed. Effects of -OH group density and surface acidity of the catalysts were analyzed. The catalyst prepared by sol-gel method was higher in surface acidity and was more active in the dehydration. Under optimal conditions: 350°C, LHSV of ethanol 0.6 h-l and ethanol mass fraction in feed 92.4%, ethanol conversion and selectivity to ethylene on γ-Al2O3 catalyst prepared by sol-gel method could reach 99.3% and 97.7%, respectively.",

keywords = "Catalyst, Ethanol dehydration, Ethylene, Precipitation method, Sol-gel method, γ-alumina",

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

year = "2009",

month = apr,

language = "英语",

volume = "38",

pages = "373--378",

journal = "Petrochemical Technology",

issn = "1000-8144",

publisher = "Beijing Research Institute of Chemical Industry",

number = "4",

}

TY - JOUR

T1 - Effect of preparation method for γ-Al2O3 catalyst on dehydration of ethanol

AU - Li, Hui

AU - Hu, Yi

AU - Su, Guodong

AU - Cheng, Yuanhai

AU - Huang, He

PY - 2009/4

Y1 - 2009/4

N2 - γ-Al2O3 catalysts for dehydration of ethanol to ethylene were prepared by both sol-gel and precipitation methods, and characterized by means of XRD, TG, N2 adsorption-desorption and NH3-TPD. The activities of ethanol dehydration on the two γ-Al2O3 catalysts were observed. Effects of -OH group density and surface acidity of the catalysts were analyzed. The catalyst prepared by sol-gel method was higher in surface acidity and was more active in the dehydration. Under optimal conditions: 350°C, LHSV of ethanol 0.6 h-l and ethanol mass fraction in feed 92.4%, ethanol conversion and selectivity to ethylene on γ-Al2O3 catalyst prepared by sol-gel method could reach 99.3% and 97.7%, respectively.

AB - γ-Al2O3 catalysts for dehydration of ethanol to ethylene were prepared by both sol-gel and precipitation methods, and characterized by means of XRD, TG, N2 adsorption-desorption and NH3-TPD. The activities of ethanol dehydration on the two γ-Al2O3 catalysts were observed. Effects of -OH group density and surface acidity of the catalysts were analyzed. The catalyst prepared by sol-gel method was higher in surface acidity and was more active in the dehydration. Under optimal conditions: 350°C, LHSV of ethanol 0.6 h-l and ethanol mass fraction in feed 92.4%, ethanol conversion and selectivity to ethylene on γ-Al2O3 catalyst prepared by sol-gel method could reach 99.3% and 97.7%, respectively.

KW - Catalyst

KW - Ethanol dehydration

KW - Ethylene

KW - Precipitation method

KW - Sol-gel method

KW - γ-alumina

UR - http://www.scopus.com/inward/record.url?scp=65449124286&partnerID=8YFLogxK

M3 - 文章

AN - SCOPUS:65449124286

SN - 1000-8144

VL - 38

SP - 373

EP - 378

JO - Petrochemical Technology

JF - Petrochemical Technology

IS - 4

ER -

Effect of preparation method for γ-Al₂O₃ catalyst on dehydration of ethanol

Abstract

Keywords

Other files and links

Fingerprint

Cite this