Effects of pre-treatment methods on performances of Cu/PAC catalysts for dimethyl oxalate hydrogenation to methyl glycolate

EN Haifeng; LI Bingwen; TIAN Huiyu; ZHAO Jinxian

doi:10.12434/j.issn.2097-2547.20240242

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Effects of pre-treatment methods on performances of Cu/PAC catalysts for dimethyl oxalate hydrogenation to methyl glycolate

更新时间：2025-06-23

- Effects of pre-treatment methods on performances of Cu/PAC catalysts for dimethyl oxalate hydrogenation to methyl glycolate
- Vol. 50, Issue 6, Pages: 43-51(2025)
- 作者机构：
  
  太原理工大学化学与化工学院省部共建煤基能源清洁高效利用国家重点实验室，山西太原 030024
- 作者简介：
- 基金信息：
- DOI：10.12434/j.issn.2097-2547.20240242
  CLC： TQ225.24;TQ426
- Received：31 May 2024，
  
  Revised：08 July 2024，
  
  Published：25 June 2025
- 稿件说明：
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恩海峰,李炳文,田慧毓等.预处理方式对Cu/PAC催化剂草酸酯加氢制乙醇酸甲酯性能的影响[J].低碳化学与化工,2025,50(06):43-51.

EN Haifeng,LI Bingwen,TIAN Huiyu,et al.Effects of pre-treatment methods on performances of Cu/PAC catalysts for dimethyl oxalate hydrogenation to methyl glycolate[J].Low-Carbon Chemistry and Chemical Engineering,2025,50(06):43-51.
恩海峰,李炳文,田慧毓等.预处理方式对Cu/PAC催化剂草酸酯加氢制乙醇酸甲酯性能的影响[J].低碳化学与化工,2025,50(06):43-51. DOI： 10.12434/j.issn.2097-2547.20240242.

EN Haifeng,LI Bingwen,TIAN Huiyu,et al.Effects of pre-treatment methods on performances of Cu/PAC catalysts for dimethyl oxalate hydrogenation to methyl glycolate[J].Low-Carbon Chemistry and Chemical Engineering,2025,50(06):43-51. DOI： 10.12434/j.issn.2097-2547.20240242.

摘要

随着我国对可降解塑料聚乙醇酸（PGA）的需求越来越大，作为合成PGA的原料，乙醇酸甲酯（MG）需求也随之增大。对沥青基活性炭（PAC）进行预处理，采用浸渍法制备了一系列Cu/PAC-

催化剂用于草酸二甲酯（DMO）加氢制MG，并考察了Cu/PAC-

催化剂的催化性能。采用N

吸/脱附、FT-IR、XRD、TEM、H

-TPR、XPS和CO-TPD等方法对Cu/PAC-

催化剂进行了表征，探讨了PAC不同预处理方式对催化剂催化性能的影响。结果表明，混酸处理能够有效提高催化剂Cu

/Cu

离子对活化性能，进而提升催化剂活性。在210 ℃、1.9 MPa、

(DMO)为170和空速为0.26 g/(g·h)时，Cu/PAC-SN催化剂的催化活性最高，其DMO转化率、MG选择性和MG收率分别达到85.4%、72.8%和62.2%。

Abstract

As the demand for degradable plastic polyglycolic acid (PGA) has been increasing in China

thus the demand for methyl glycolate (MG) as a raw material for the synthesis of PGA has also rapidly increased. A series of Cu/PAC-

catalysts were prepared by impregnation method for the hydrogenation of dimethyl oxalate (DMO) to MG by pretreatment of pitch-based activated carbon (PAC)

and the catalytic performances of Cu/PAC-

catalysts were investigated. The Cu/PAC-

catalysts were characterized by N

adsorption/desorpti

FT-IR

XRD

TEM

-TPR

XPS and CO-TPD

and the effects of different pre-treatment methods of the PAC on the catalytic performances of catalysts were investigated. The results show that mixed acid treatment can improve the Cu

/Cu

ion pairs activation performances of catalysts

thereby improving the catalyst activity. At 210 ℃

1.9 MPa

(DMO) of 170 and space velocity of 0.26 g/(g·h)

the catalytic activity of Cu/PAC-SN catalyst is the highest

and the DMO conversion rate

MG selectivity and yield rate of Cu/PAC-SN catalyst reach 85.4%

72.8% and 62.2%

respectively.

关键词

Keywords

references

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Related Author

EN Haifeng

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Related Institution

State Key Laboratory of Clean and Efficient Coal Utilization, College of Chemical Engineering and Technology, Taiyuan University of Technology

SINOPEC Dalian Research Institute of Petroleum and Petrochemicals Co., Ltd.

华东理工大学化学工程国家重点实验室

Dalian Institute of Chemical Physics, Chinese Academy of Sciences

University of Chinese Academy of Sciences

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