石油化工高等学校学报 ›› 2025, Vol. 38 ›› Issue (6): 74-80.DOI: 10.12422/j.issn.1006-396X.2025.06.009

• 催化剂及催化材料 • 上一篇    

固体超强酸S2O82-/ZrO2⁃CeO2催化合成乙酸正丁酯的研究

师阳1(), 杜佳奇2, 闫锋1, 孙岢欣1, 庄仕钊1   

  1. 1.辽宁石油化工大学 石油化工学院,辽宁 抚顺 113001
    2.中国石油天然气股份有限公司 昆仑润滑检测评定中心,甘肃 兰州 730060
  • 收稿日期:2024-12-08 修回日期:2025-10-06 出版日期:2025-12-25 发布日期:2025-12-07
  • 通讯作者: 闫锋
  • 作者简介:师阳(1999⁃),女,硕士研究生,从事清洁燃料生产新工艺方面的研究;E⁃mail:2373450553@qq.com
  • 基金资助:
    国家科技重大专项课题(2016ZX05010?004?005)

Study on the Catalytic Synthesis of n⁃Butyl Acetate Using Solid Superacid S2O82-/ZrO2⁃CeO2

Yang SHI1(), Jiaqi DU2, Feng YAN1, Kexin SUN1, Shizhao ZHUANG1   

  1. 1.School of Petrochemical Engineering,Liaoning Petrochemical University,Fushun Liaoning 113001,China
    2.Kunlun Lubrication Testing and Evaluation Center,PetroChina Corporation,Lanzhou Gansu 730060,China
  • Received:2024-12-08 Revised:2025-10-06 Published:2025-12-25 Online:2025-12-07
  • Contact: Feng YAN

摘要:

以硝酸锆和硝酸铈为金属源,通过沉淀?浸渍法制备了固体超强酸催化剂S2O82-/ZrO2?CeO2;以S2O82-/ZrO2?CeO2为催化剂,乙酸和正丁醇为原料催化合成乙酸正丁酯,考察了催化剂的质量、n(醇)/n(酸)、反应温度、反应时间等条件对催化反应的影响;通过XRD、FT?IR、N2吸附脱附等温线、NH3?TPD对催化剂进行了表征。结果表明,催化剂S2O82-/ZrO2?CeO2的酸性较强,催化效果较好;催化剂S2O82-/ZrO2?CeO2的最佳反应条件为:Ce的负载量(质量分数)为2.0%,催化剂质量为0.6 g,n(醇)/n(酸)=2.0∶1.0,反应温度为115 ℃,反应时间为4.0 h,过硫酸铵浓度为0.5 mol/L;在最佳反应条件下,乙酸正丁酯的酯化率可达99.6%,重复实验5次后,转化率仍可达59.4%。

关键词: S2O82-/ZrO2?CeO2, 催化, 氧化铈, 乙酸正丁酯, 固体超强酸

Abstract:

Solid superacid catalyst S2O82-/ZrO2?CeO2 was prepared by precipitation impregnation method using zirconium nitrate and cerium nitrate as metal sources.n?Butyl acetate was synthesized through the catalytic esterification of acetic acid and n?butanol over S2O82-/ZrO2?CeO2.The effects of catalyst mass,n(alkanol)/n(acid),reaction temperature and reaction time on the catalytic reaction were investigated.The catalyst was characterized by XRD,FT?IR,N2 adsorption?desorption isotherm and NH3?TPD.The results indicated that S2O82-/ZrO2?CeO2 possesses strong acidity and exhibits superior catalytic activity.The optimal reaction conditions were determined as follows: cerium loading(mass fraction) of 2.0%,catalyst mass of 0.6 g,n(alcohol)/n(acid) molar ratio of 2.0∶1.0,reaction temperature of 115 °C,reaction time of 4.0 h,and ammonium persulfate concentration of 0.5 mol/L.Under these optimal conditions,the esterification rate of n?butyl acetate reached 99.6%.After 5 cycles of repeated use,the conversion rate remained at 59.4%.

Key words: S2O82-/ZrO2?CeO2, Catalyst, Cerium oxide, Butyl acetate, Solid superacid

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引用本文

师阳, 杜佳奇, 闫锋, 孙岢欣, 庄仕钊. 固体超强酸S2O82-/ZrO2⁃CeO2催化合成乙酸正丁酯的研究[J]. 石油化工高等学校学报, 2025, 38(6): 74-80.

Yang SHI, Jiaqi DU, Feng YAN, Kexin SUN, Shizhao ZHUANG. Study on the Catalytic Synthesis of n⁃Butyl Acetate Using Solid Superacid S2O82-/ZrO2⁃CeO2[J]. Journal of Petrochemical Universities, 2025, 38(6): 74-80.

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