SCI和EI收录∣中国化工学会会刊

Chin.J.Chem.Eng. ›› 2016, Vol. 24 ›› Issue (11): 1561-1569.DOI: 10.1016/j.cjche.2016.04.025

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Application of Brönsted acid ionic liquids as green catalyst in the synthesis of 2-propanol with reactive distillation

Jinbei Yang1,2, Dongren Cai1, Ting Zeng1, Lihua Zhou1, Ling Li1, Ruoyu Hong1, Ting Qiu1   

  1. 1 School of Chemical Engineering, Fuzhou University, Fuzhou, Fujian 350108, China;
    2 School of Ocean Science and Biochemistry Engineering, Fuqing Branch of Fujian Normal University, Fuzhou, Fujian 350300, China
  • Received:2016-03-06 Revised:2016-04-21 Online:2016-12-06 Published:2016-11-28
  • Contact: Ting Qiu
  • Supported by:

    Supported by the National Natural Science Foundation of China (21576053, 91534106, 21306025), the International S&T Cooperation Program of China (2013DFR90540), the Science Foundation of Distinguished Young Scholars of Fujian (2014J06004), the New Century Excellent Talents in Fujian Province University (JA12014), the Natural Science Foundation of Fujian Province (2016J01689), and the Key Project of Fujian Provincial Department of Science and Technology (2014Y0066).

Application of Brönsted acid ionic liquids as green catalyst in the synthesis of 2-propanol with reactive distillation

Jinbei Yang1,2, Dongren Cai1, Ting Zeng1, Lihua Zhou1, Ling Li1, Ruoyu Hong1, Ting Qiu1   

  1. 1 School of Chemical Engineering, Fuzhou University, Fuzhou, Fujian 350108, China;
    2 School of Ocean Science and Biochemistry Engineering, Fuqing Branch of Fujian Normal University, Fuzhou, Fujian 350300, China
  • 通讯作者: Ting Qiu
  • 基金资助:

    Supported by the National Natural Science Foundation of China (21576053, 91534106, 21306025), the International S&T Cooperation Program of China (2013DFR90540), the Science Foundation of Distinguished Young Scholars of Fujian (2014J06004), the New Century Excellent Talents in Fujian Province University (JA12014), the Natural Science Foundation of Fujian Province (2016J01689), and the Key Project of Fujian Provincial Department of Science and Technology (2014Y0066).

Abstract: Five Brönsted acidic ionic liquids (ILs)were prepared and characterized by FT-IR, 1H NMR and 13CNMR. Their catalytic activities for the synthesis of 2-propanol (IPOH) via transesterification of isopropyl acetate (IPAc) with methanol (MeOH) were investigated. Among all the tested ILs,[Ps-mim]HSO4 performed best and was used as catalyst for further studies. The reaction kinetics were carried out to correlate the parameters in a homogeneous second order kinetic model. It has been found that there is close agreement between the calculated and experimental values. The high-pressure batch reactive distillation experimental apparatus was set up in order to enhance the conversion of IPAc. A high conversion of IPAc of 99.4% was obtained under the optimal reaction conditions. The catalyst[Ps-mim]HSO4 can be recycled easily by a rotary evaporator and reusedwithout any further treatment. The catalyst had been repeatedly used for four times and no obvious changes in the structure of catalyst could be observed.

Key words: Brö, nsted acidic ionic liquids, 2-Propanol, Transesterification, Homogeneous second order kinetic model, Reactive distillation

摘要: Five Brönsted acidic ionic liquids (ILs)were prepared and characterized by FT-IR, 1H NMR and 13CNMR. Their catalytic activities for the synthesis of 2-propanol (IPOH) via transesterification of isopropyl acetate (IPAc) with methanol (MeOH) were investigated. Among all the tested ILs,[Ps-mim]HSO4 performed best and was used as catalyst for further studies. The reaction kinetics were carried out to correlate the parameters in a homogeneous second order kinetic model. It has been found that there is close agreement between the calculated and experimental values. The high-pressure batch reactive distillation experimental apparatus was set up in order to enhance the conversion of IPAc. A high conversion of IPAc of 99.4% was obtained under the optimal reaction conditions. The catalyst[Ps-mim]HSO4 can be recycled easily by a rotary evaporator and reusedwithout any further treatment. The catalyst had been repeatedly used for four times and no obvious changes in the structure of catalyst could be observed.

关键词: Brö, nsted acidic ionic liquids, 2-Propanol, Transesterification, Homogeneous second order kinetic model, Reactive distillation