Cerium-modified copper/hexagonal mesoporous silica catalyst for efficient dimethyl oxalate hydrogenation to ethylene glycol under moderate reaction conditions

WU Di; ZHANG Juan; HUANG Zhi-jun; CHEN Jian-gang

doi:10.1016/S1872-5813(22)60042-2

Volume 51 Issue 2

Jan. 2023

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Article Navigation > Journal of Fuel Chemistry and Technology > 2023 > 51(2): 186-196

WU Di, ZHANG Juan, HUANG Zhi-jun, CHEN Jian-gang. Cerium-modified copper/hexagonal mesoporous silica catalyst for efficient dimethyl oxalate hydrogenation to ethylene glycol under moderate reaction conditions[J]. Journal of Fuel Chemistry and Technology, 2023, 51(2): 186-196. doi: 10.1016/S1872-5813(22)60042-2

Citation:

WU Di, ZHANG Juan, HUANG Zhi-jun, CHEN Jian-gang. Cerium-modified copper/hexagonal mesoporous silica catalyst for efficient dimethyl oxalate hydrogenation to ethylene glycol under moderate reaction conditions[J]. Journal of Fuel Chemistry and Technology, 2023, 51(2): 186-196. doi: 10.1016/S1872-5813(22)60042-2

Citation:

WU Di, ZHANG Juan, HUANG Zhi-jun, CHEN Jian-gang. Cerium-modified copper/hexagonal mesoporous silica catalyst for efficient dimethyl oxalate hydrogenation to ethylene glycol under moderate reaction conditions[J]. Journal of Fuel Chemistry and Technology, 2023, 51(2): 186-196. doi: 10.1016/S1872-5813(22)60042-2

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Cerium-modified copper/hexagonal mesoporous silica catalyst for efficient dimethyl oxalate hydrogenation to ethylene glycol under moderate reaction conditions

doi: 10.1016/S1872-5813(22)60042-2

WU Di^{1, 2
,},
ZHANG Juan¹,
HUANG Zhi-jun³,
CHEN Jian-gang^{1
,
,}

1.
State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
2.
University of Chinese Academy of Sciences, Beijing 100049, China
3.
State Key Laboratory of Biomass Thermal Chemistry Technology, Wuhan 430223, China

Funds: The project was supported by the National Natural Science Foundation of China (22072175).

More Information

Corresponding author: Tel/Fax: 0351-4064128, E-mail: chenjg@sxicc.ac.cn
Received Date: 2022-03-14
Accepted Date: 2022-04-24
Rev Recd Date: 2022-04-23

Available Online: 2022-06-23

Publish Date: 2023-01-18

Abstract

Abstract

A highly efficient cerium-modified Cu/hexagonal mesoporous silica (xCe-Cu/HMS) catalyst for the vapor-phase hydrogenation of dimethyl oxalate (DMO) into ethylene glycol (EG) was prepared using an ammonia evaporation method. The Ce promoter can significantly improve the performance of the catalyst, and the best catalytic performance was obtained after the introduction of 1.2% Ce promoter on Cu/HMS. The DMO conversion and EG selectivity got to 99.6% and 96.3%, respectively, under moderate conditions (200 °C, 2.0 MPa, H₂/DMO = 100 and LHSV_DMO = 1.2 h⁻¹). Characterization results revealed that Ce modification can enhance the interaction between Cu and the support, improve the dispersion of Cu on HMS, and maintain the appropriate ratio of Cu⁺/(Cu⁺+Cu⁰). In this study, a simple and low-cost method was used to synthesize Ce-modified Cu-HMS catalysts, which showed excellent catalytic performance in conversion of DMO to EG under moderate conditions.
- Cu/HMS,
- cerium promoter,
- dimethyl oxalate,
- hydrogenation,
- ethylene glycol

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References(38)

References

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