沉淀沉积法制备活性炭负载铜基催化剂及其氧化羰基化

王瑞玉; 郭明; 李忠

沉淀沉积法制备活性炭负载铜基催化剂及其氧化羰基化

1.
中国矿业大学江苏省煤基CO₂捕集与地质储存重点实验室, 江苏徐州 221006;
2.
太原理工大学煤科学与技术教育部及山西省重点实验室, 山西太原 030024

基金项目: 国家自然科学基金(21506249); 江苏省博士后基金(1401096c); 中央高校基本科研业务费(中国矿业大学,2014QNA19)。

详细信息

通讯作者:
李忠(1964-),男,教授,Tel:0516-83883501;E-mail:wangruiyu0694@163.com。

中图分类号: O643
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- 文章访问数: 399
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- 被引次数: 0
出版历程
- 收稿日期: 2014-12-15
- 修回日期: 2015-04-14
- 刊出日期: 2015-09-30

Preparation and oxycarbonylation of activated carbon supported copper-based catalyst by deposition-precipitation method

1.
Key Laboratory of Coal-based CO₂ Capture and Geological Storage of Jiangsu Province, China University of Mining and Technology, Xuzhou 221006, China;
2.
Key Laboratory of Coal Science and Technology, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China

摘要

摘要: 采用沉淀沉积法制备了活性炭负载的铜基催化剂,并用其催化甲醇直接气相氧化羰基化合成碳酸二甲酯(DMC)。通过催化活性评价以及XRD、H₂-TPR、SEM等表征考察了铜源、还原剂、沉淀剂、铜负载量等制备条件对催化剂性能的影响。结果表明,采用醋酸铜作为铜源、葡萄糖作为还原剂、负载量为17.1%时制备的Cu₂O/AC催化剂合成DMC活性最佳,在MeOH/CO/O₂体积比=5:11:1、SV=6 625 h^-1的条件下,催化剂最高时空收率可达99.36 mg/(g·h), DMC的选择性为83.13%。
- 铜基催化剂 /
- 活性炭 /
- 沉淀沉积法 /
- 氧化羰基化 /
- 碳酸二甲酯
Abstract: The activated carbon supported copper-based catalyst was prepared by deposition-precipitation method and used to catalyze the direct vapor-phase oxycarbonylation of methanol to dimethyl carbonate (DMC). The effect of preparation conditions(such as copper salt, reductant, precipitant and loading amount ect) on the catalytic performance were investigated by XRD, H₂-TPR and SEM techniques. The result showed that under the condition of MeOH/CO/O₂(volume ratio)=5:11:1, SV=6 625 h^-1, Cu₂O /AC catalyst (Cu(CH₃COO)₂·H₂O as precursor, glucose as reductant, Cu₂O loading amount of 17.1%) showed satisfactory catalytic performance for DMC synthesis. The STY reached 99.36 mg/(g·h) and the selectivity of DMC was about 83.13%.
- copper-based catalyst /
- activated carbon /
- deposition-precipitation method /
- oxidative carbonylation /
- dimethyl carbonate

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参考文献(21)

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