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中文摘要：
对所制备的聚二甲基硅氧烷（PDMS）/陶瓷复合膜进行了渗透汽化性能表征。通过在乙醇-水混合体系中添加不同的模拟发酵液组分,如葡萄糖（多羟基醛）、甘油（多元醇）、丁二酸（有机酸）、KCl（无机盐）,考察了各组分对复合膜渗透汽化性能的影响。研究发现：在333K下,在乙醇浓度为65g·L^-1的混合物中添加不同浓度的第三组分,有机添加物对膜的渗透汽化性能没有明显影响,而无机盐的加入使膜的分离因子稍有提高。所制备的PDMS/陶瓷复合膜,在上述渗透汽化过程中表现出良好的稳定性和对乙醇的优先选择性;渗透通量和分离因子（醇/水）分别在4.5-4.7kg·m^-2·h^-1、8.3-10.3之间。
英文摘要：
Hydrophobic polydimethylsiloxane （PDMS） /ceramic composite membrane was prepared and used in the pervaporation of simulated fermentation components. The effects of the common components in ethanol fermentation, such as glucose （polyhydric aldehyde）, glycerol （organic polyol）, succinic acid （organic acid） and KCI （inorganic salts）, on the perva were investigated in detail. The results show that the a poratio ddition n performance of the composite membrane of organic components to the 65 g ·L^-1 ethanol-water solution has little effect on the pervaporation performance while the addition of inorganic salts （KCl） made a little improvement of separation factor. The PDMS/ceramic membranes exhibited stable performance in these ternary systems with a high flux of 4.5-4.7 kg·m^-2·h^-1 and an acceptable ethanol/water separation factor of 8.3-10.3 at 333 K.
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