Ultra-stable Cu-based catalyst for dimethyl oxalate hydrogenation to ethylene glycol

Peipei Ai; Huiqing Jin; Jie Li; Xiaodong Wang; Wei Huang

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Ultra-stable Cu-based catalyst for dimethyl oxalate hydrogenation to ethylene glycol

Full Length Article | Updated：2026-01-06

- Ultra-stable Cu-based catalyst for dimethyl oxalate hydrogenation to ethylene glycol
- Chinese Journal of Chemical Engineering Vol. 60, Issue 8, Pages: 186-193(2023)
- Affiliations：
  
  1. State Key Laboratory of Clean and Efficient Coal Utilization, College of Chemical Engineering and Technology, Taiyuan University of Technology,Taiyuan,China,030024
  2. CAS Key Laboratory of Nanophotonic Materials and Devices & Key Laboratory of Nanodevices and Applications, i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences,Suzhou,China,215123
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2023
- Accepted：
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Peipei Ai, Huiqing Jin, Jie Li, Xiaodong Wang, Wei Huang. Ultra-stable Cu-based catalyst for dimethyl oxalate hydrogenation to ethylene glycol[J]. Chinese Journal of Chemical Engineering, 2023, 60(8): 186-193.
DOI：

Peipei Ai, Huiqing Jin, Jie Li, Xiaodong Wang, Wei Huang. Ultra-stable Cu-based catalyst for dimethyl oxalate hydrogenation to ethylene glycol[J]. Chinese Journal of Chemical Engineering, 2023, 60(8): 186-193. DOI：

摘要

Abstract

Dimethyl oxalate (DMO) hydrogenation is a crucial step in the coal to ethylene glycol (CTEG) process. Herein

Cu catalyst supported on fibrous mesoporous silica (Cu/FMS) was synthesized

via

liquid phase deposition technique and applied for the DMO hydrogenation to EG. The catalyst exhibited a remarkable EG selectivity of 96.95% and maintained its activity without deactivation for 1000 h. Fibers of FMS support and liquid phase deposition technology cooperated to give high dispersion of Cu species in the Cu/FMS catalyst

resulting in a high Cu surface area. The formation of Si—O—Cu during catalyst preparation process increased the Cu

/(Cu

+ Cu

) ratio and enhanced the thermal and valence stability of Cu species. The high Cu

surface area and Cu stability (thermal and valence stability) of the Cu/FMS catalyst were key factors for achieving superior EG selectivity and ultra-high stability.

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