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用PDMS复合膜从实际的丙炔醇-丁炔二醇-水溶液中渗透汽化分离丙炔醇。实验证明,膜渗透汽化可以实现丙炔醇的选择性分离,对水的分离因子可达3.78;丁炔二醇被膜完全截留;丙炔醇通量对温度具有敏感性,通量随着温度的增加上升得很快,丙炔醇通量在25℃时为45.28g/(m2.h),在60℃时为243.24g/(m2.h),显示了PDMS膜从这个体系中分离丙炔醇具有某种优势;对实验数据进行线性回归,证明丙炔醇通量和温度的关系可以用Arrhenius公式表征。为工业上用PDMS膜渗透汽化分离提纯丙炔醇提供参考。
Permeation of propargyl alcohol from the actual propynyl-butynediol-water solution using a PDMS composite membrane. Experiments show that membrane pervaporation can achieve selective separation of propargyl alcohol, water separation factor of up to 3.78; butynediol film completely trapped; propargyl alcohol flux is sensitive to temperature, flux with temperature The increase increases rapidly with a propargyl alcohol flux of 45.28 g / (m2.h) at 25 ° C and 243.24 g / (m2.h) at 60 ° C, showing that the PDMS membrane separates propyne from this system The alcohol has some advantages. The linear regression of experimental data proves that the relationship between the flux of propargyl alcohol and temperature can be characterized by Arrhenius formula. For the industrial use of PDMS membrane pervaporation purify propargyl alcohol for reference.