Synthesis of dimethyl carbonate by transesterification with various MgO-CeO2 mixed oxide catalysts

Haznan Abimanyu; Chang Soo Kim; Byoung Sung Ahn; Kye Sang Yoo

doi:10.1007/s10562-007-9091-z

Synthesis of dimethyl carbonate by transesterification with various MgO-CeO₂ mixed oxide catalysts

Haznan Abimanyu
, Chang Soo Kim
, Byoung Sung Ahn
, Kye Sang Yoo

Dept. of Chemical and Biomolecular Engineering

Korea Institute of Science and Technology

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

47 Scopus citations

Abstract

The transesterification of ethylene carbonate (EC) with methanol to co-generate dimethyl carbonate (DMC) and ethylene glycol over the MgO, CeO ₂ and mixed oxide thereof was studied using a fixed-bed isothermal tube reactor. In all mixed oxide, the presence of cerium led to a decrease of BET surface area and pore volume as compared to pure magnesia. X-ray diffraction (XRD) revealed that no mixed phases were observed, but MgO (periclase) and CeO₂ (cerianite) phases. The catalytic activity intensely depends on the surface basicity and the base strength distribution, but not on the surface area and pore volume. It was found that a high EC conversion of 67% with DMC selectivity of 95% could be obtained by catalyst with cerium content around 25 mol%.

Original language	English
Pages (from-to)	30-35
Number of pages	6
Journal	Catalysis Letters
Volume	118
Issue number	1-2
DOIs	https://doi.org/10.1007/s10562-007-9091-z
State	Published - Oct 2007

Keywords

Dimethyl carbonate
Mg-Ce mixed oxide
Surface basicity
Transesterification

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title = "Synthesis of dimethyl carbonate by transesterification with various MgO-CeO2 mixed oxide catalysts",

abstract = "The transesterification of ethylene carbonate (EC) with methanol to co-generate dimethyl carbonate (DMC) and ethylene glycol over the MgO, CeO 2 and mixed oxide thereof was studied using a fixed-bed isothermal tube reactor. In all mixed oxide, the presence of cerium led to a decrease of BET surface area and pore volume as compared to pure magnesia. X-ray diffraction (XRD) revealed that no mixed phases were observed, but MgO (periclase) and CeO2 (cerianite) phases. The catalytic activity intensely depends on the surface basicity and the base strength distribution, but not on the surface area and pore volume. It was found that a high EC conversion of 67\% with DMC selectivity of 95\% could be obtained by catalyst with cerium content around 25 mol\%.",

keywords = "Dimethyl carbonate, Mg-Ce mixed oxide, Surface basicity, Transesterification",

author = "Haznan Abimanyu and Kim, \{Chang Soo\} and Ahn, \{Byoung Sung\} and Yoo, \{Kye Sang\}",

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T1 - Synthesis of dimethyl carbonate by transesterification with various MgO-CeO2 mixed oxide catalysts

AU - Abimanyu, Haznan

AU - Kim, Chang Soo

AU - Ahn, Byoung Sung

AU - Yoo, Kye Sang

PY - 2007/10

Y1 - 2007/10

N2 - The transesterification of ethylene carbonate (EC) with methanol to co-generate dimethyl carbonate (DMC) and ethylene glycol over the MgO, CeO 2 and mixed oxide thereof was studied using a fixed-bed isothermal tube reactor. In all mixed oxide, the presence of cerium led to a decrease of BET surface area and pore volume as compared to pure magnesia. X-ray diffraction (XRD) revealed that no mixed phases were observed, but MgO (periclase) and CeO2 (cerianite) phases. The catalytic activity intensely depends on the surface basicity and the base strength distribution, but not on the surface area and pore volume. It was found that a high EC conversion of 67% with DMC selectivity of 95% could be obtained by catalyst with cerium content around 25 mol%.

AB - The transesterification of ethylene carbonate (EC) with methanol to co-generate dimethyl carbonate (DMC) and ethylene glycol over the MgO, CeO 2 and mixed oxide thereof was studied using a fixed-bed isothermal tube reactor. In all mixed oxide, the presence of cerium led to a decrease of BET surface area and pore volume as compared to pure magnesia. X-ray diffraction (XRD) revealed that no mixed phases were observed, but MgO (periclase) and CeO2 (cerianite) phases. The catalytic activity intensely depends on the surface basicity and the base strength distribution, but not on the surface area and pore volume. It was found that a high EC conversion of 67% with DMC selectivity of 95% could be obtained by catalyst with cerium content around 25 mol%.

KW - Dimethyl carbonate

KW - Mg-Ce mixed oxide

KW - Surface basicity

KW - Transesterification

UR - https://www.scopus.com/pages/publications/34648829016

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DO - 10.1007/s10562-007-9091-z

M3 - Article

AN - SCOPUS:34648829016

SN - 1011-372X

VL - 118

SP - 30

EP - 35

JO - Catalysis Letters

JF - Catalysis Letters

IS - 1-2

ER -

Synthesis of dimethyl carbonate by transesterification with various MgO-CeO₂ mixed oxide catalysts

Abstract

Keywords

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