Study on performances of Cu/ZnO/ZrO<sub>2</sub> catalysts synthesized by ammonia evaporation method for CO<sub>2</sub> hydrogenation to methanol

CHEN Yongbo; WANG Wenchao; JIN Chuanchuan; WU Fapeng; TANG Chizhou

doi:10.12434/j.issn.2097-2547.20250014

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Study on performances of Cu/ZnO/ZrO₂ catalysts synthesized by ammonia evaporation method for CO₂ hydrogenation to methanol

更新时间：2025-11-25

- Study on performances of Cu/ZnO/ZrO₂ catalysts synthesized by ammonia evaporation method for CO₂ hydrogenation to methanol
- Vol. 50, Issue 11, Pages: 21-28(2025)
- 作者机构：
  
  1.安徽海螺集团有限责任公司，安徽芜湖 241000
  2.安徽海螺产业技术研究院有限公司，安徽芜湖 241000
- 作者简介：
- 基金信息：
- DOI：10.12434/j.issn.2097-2547.20250014
  CLC： TQ426;TQ223.12
- Received：13 January 2025，
  
  Revised：2025-03-12，
  
  Published：25 November 2025
- 稿件说明：
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陈永波,王文超,晋川川等.蒸氨法合成Cu/ZnO/ZrO₂催化剂用于CO₂加氢制甲醇性能研究[J].低碳化学与化工,2025,50(11):21-28.

CHEN Yongbo,WANG Wenchao,JIN Chuanchuan,et al.Study on performances of Cu/ZnO/ZrO₂ catalysts synthesized by ammonia evaporation method for CO₂ hydrogenation to methanol[J].Low-Carbon Chemistry and Chemical Engineering,2025,50(11):21-28.
陈永波,王文超,晋川川等.蒸氨法合成Cu/ZnO/ZrO₂催化剂用于CO₂加氢制甲醇性能研究[J].低碳化学与化工,2025,50(11):21-28. DOI： 10.12434/j.issn.2097-2547.20250014.

CHEN Yongbo,WANG Wenchao,JIN Chuanchuan,et al.Study on performances of Cu/ZnO/ZrO₂ catalysts synthesized by ammonia evaporation method for CO₂ hydrogenation to methanol[J].Low-Carbon Chemistry and Chemical Engineering,2025,50(11):21-28. DOI： 10.12434/j.issn.2097-2547.20250014.

摘要

为提升CO

加氢制甲醇催化剂的活性并提高其合成过程的原子经济性，采用蒸氨法替代传统共沉淀法合成了Cu/ZnO/ZrO

催化剂，并应用于CO

加氢制甲醇反应。系统考察了共沉淀法与蒸氨法及不同蒸氨温度对催化剂结构和催化性能的影响。通过XRD、N

吸/脱附和紫外可见吸收光谱等手段，对催化剂的物相组成、晶粒尺寸及比表面积等结构特征进行了表征分析。结果表明，与共沉淀法制备的催化剂相比，75 ℃下蒸氨法合成的催化剂（CuZnZr-75）中Cu与Zn分布更均匀，焙烧后形成的CuO晶粒尺寸更小，因而拥有更多Cu-Zn界面活性位点。在反应物配比

(CO

) = 3:1、质量空速（WHSV）为24000 mL/(g·h)、反应压力为2 MPa和温度为220 ℃条件下，采用固定床反应器对催化剂的CO

加氢制

甲醇性能进行了评价。结果表明，蒸氨法有助于构筑更高活性的催化位点，最优情况（CuZnZr-75）下，单位催化剂表面积上的甲醇时空产率由共沉淀法制备催化剂的3.96 mg/(m

·h)提升至6.33 mg/(m

·h)，且CO

转化率达到6.98%。

Abstract

To enhance the catalytic activity for CO

hydrogenation to methanol and improve the atom economy of the synthesis process

Cu/ZnO/ZrO

catalysts were prepared using the ammonia evaporation method instead of the traditional co-precipitation method

and their performance for CO

hydrogenation to methanol was investigated. The effects of the synthesis method and ammonia evaporation temperatures on the structures and catalytic performances of catalysts were systematically studied. The phase compositions

crystallite sizes and specific surface areas of the catalysts were characterized by XRD

adsorption/desorption

and UV-Vis spectroscopy. The results show that compared with the catalyst prepared by the co-precipitation method

the catalyst synthesized via ammonia evaporation at 75 ℃ (CuZnZr-75) exhibits a more homogeneous distribution of Cu and Zn. After calcination

the resulting CuO crystallite size is smaller

leading to the formation of more Cu-Zn interfacial active sites. Under reaction conditions of

(CO

) = 3:1

weight hourly space velocity (WHSV) of 24000 mL/(g·h)

pressure of 2 MPa and temperature of 220  ℃

the catalytic performance was evaluated in a fixed-bed reactor. The results indicate that the ammonia evaporation method facilitates the construction of more highly active catalytic sites. Under optimal condition (CuZnZr-75)

the methanol space-time yield per unit catalyst surface area increases from 3.96 mg/(m

·h) for the co-precipitated catalyst to 6.33 mg/(m

·h)

and the CO

conversion rate reaches 6.98%.

关键词

Keywords

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Study on performances of Cu/ZnO/ZrO2 catalysts synthesized by ammonia evaporation method for CO2 hydrogenation to methanol

DOI：10.12434/j.issn.2097-2547.20250014

摘要

Abstract

关键词

Keywords

references

Study on performances of Cu/ZnO/ZrO₂ catalysts synthesized by ammonia evaporation method for CO₂ hydrogenation to methanol