Hydrolysis of ethylene carbonate to ethylene glycol over K2CO3/MgO/γ-Al2O3

Weiguang Zhu; Ming Ding; Ningyu Zhao; Dinghua Liu; Xiaoqin Liu

Hydrolysis of ethylene carbonate to ethylene glycol over K₂CO₃/MgO/γ-Al₂O₃

Weiguang Zhu, Ming Ding, Ningyu Zhao, Dinghua Liu, Xiaoqin Liu

College of Chemical Engineering

Nanjing Tech University

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

1 Scopus citations

Abstract

K₂CO₃/γ-Al₂O₃ and K₂CO₃/MgO/γ-Al₂O₃ solid base catalysts with different loading were prepared by impregnation and used in the hydrolysis of ethylene carbonate (EC) to ethylene glycol (EG). The surface structure and alkaline of the catalysts were investigated by means of XRD and CO₂-TPD. The effects of K₂CO₃ and MgO loadings, reaction temperature, and mole ratio of H₂O to EC on the hydrolysis were studied. The results showed that both the conversion of EC and the selectivity to EG could reach 100% under the conditions of 10%(w)K₂CO₃/10%(w)MgO/γ-Al₂O₃ as the catalyst, 120 ℃, mole ratio of H₂O to EC 1.2, 0.6 MPa and 3 h. The K₂CO₃/MgO/γ-Al₂O₃ catalyst had high activity and stability, much better than the K₂CO₃/γ-Al₂O₃ catalyst.

Original language	English
Pages (from-to)	1144-1148
Number of pages	5
Journal	Petrochemical Technology
Volume	43
Issue number	10
State	Published - 15 Oct 2014

Keywords

Ethylene carbonate
Ethylene glycol
Hydrolysis
Potassium carbonate/magnesium oxide/γ-alumina catalyst
Solid base

Cite this

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title = "Hydrolysis of ethylene carbonate to ethylene glycol over K2CO3/MgO/γ-Al2O3",

abstract = "K2CO3/γ-Al2O3 and K2CO3/MgO/γ-Al2O3 solid base catalysts with different loading were prepared by impregnation and used in the hydrolysis of ethylene carbonate (EC) to ethylene glycol (EG). The surface structure and alkaline of the catalysts were investigated by means of XRD and CO2-TPD. The effects of K2CO3 and MgO loadings, reaction temperature, and mole ratio of H2O to EC on the hydrolysis were studied. The results showed that both the conversion of EC and the selectivity to EG could reach 100% under the conditions of 10%(w)K2CO3/10%(w)MgO/γ-Al2O3 as the catalyst, 120 ℃, mole ratio of H2O to EC 1.2, 0.6 MPa and 3 h. The K2CO3/MgO/γ-Al2O3 catalyst had high activity and stability, much better than the K2CO3/γ-Al2O3 catalyst.",

keywords = "Ethylene carbonate, Ethylene glycol, Hydrolysis, Potassium carbonate/magnesium oxide/γ-alumina catalyst, Solid base",

author = "Weiguang Zhu and Ming Ding and Ningyu Zhao and Dinghua Liu and Xiaoqin Liu",

year = "2014",

month = oct,

day = "15",

language = "英语",

volume = "43",

pages = "1144--1148",

journal = "Petrochemical Technology",

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publisher = "Beijing Research Institute of Chemical Industry",

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TY - JOUR

T1 - Hydrolysis of ethylene carbonate to ethylene glycol over K2CO3/MgO/γ-Al2O3

AU - Zhu, Weiguang

AU - Ding, Ming

AU - Zhao, Ningyu

AU - Liu, Dinghua

AU - Liu, Xiaoqin

PY - 2014/10/15

Y1 - 2014/10/15

N2 - K2CO3/γ-Al2O3 and K2CO3/MgO/γ-Al2O3 solid base catalysts with different loading were prepared by impregnation and used in the hydrolysis of ethylene carbonate (EC) to ethylene glycol (EG). The surface structure and alkaline of the catalysts were investigated by means of XRD and CO2-TPD. The effects of K2CO3 and MgO loadings, reaction temperature, and mole ratio of H2O to EC on the hydrolysis were studied. The results showed that both the conversion of EC and the selectivity to EG could reach 100% under the conditions of 10%(w)K2CO3/10%(w)MgO/γ-Al2O3 as the catalyst, 120 ℃, mole ratio of H2O to EC 1.2, 0.6 MPa and 3 h. The K2CO3/MgO/γ-Al2O3 catalyst had high activity and stability, much better than the K2CO3/γ-Al2O3 catalyst.

AB - K2CO3/γ-Al2O3 and K2CO3/MgO/γ-Al2O3 solid base catalysts with different loading were prepared by impregnation and used in the hydrolysis of ethylene carbonate (EC) to ethylene glycol (EG). The surface structure and alkaline of the catalysts were investigated by means of XRD and CO2-TPD. The effects of K2CO3 and MgO loadings, reaction temperature, and mole ratio of H2O to EC on the hydrolysis were studied. The results showed that both the conversion of EC and the selectivity to EG could reach 100% under the conditions of 10%(w)K2CO3/10%(w)MgO/γ-Al2O3 as the catalyst, 120 ℃, mole ratio of H2O to EC 1.2, 0.6 MPa and 3 h. The K2CO3/MgO/γ-Al2O3 catalyst had high activity and stability, much better than the K2CO3/γ-Al2O3 catalyst.

KW - Ethylene carbonate

KW - Ethylene glycol

KW - Hydrolysis

KW - Potassium carbonate/magnesium oxide/γ-alumina catalyst

KW - Solid base

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M3 - 文章

AN - SCOPUS:84908370551

SN - 1000-8144

VL - 43

SP - 1144

EP - 1148

JO - Petrochemical Technology

JF - Petrochemical Technology

IS - 10

ER -

Hydrolysis of ethylene carbonate to ethylene glycol over K₂CO₃/MgO/γ-Al₂O₃

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