Pervaporation (PV) is a membrane technology that holds great promise for industrial applications. To better understand the PV mechanism, PV dehydrations of various types of organic solvents (methanol, ethanol, iso-propanol, tert-butanol, and acetone) were performed on five types of organosilica and two types of silicon carbide-based membranes, all with different pore sizes. Water permeance was dependent on the types of organic aqueous solutions, which suggested that organic solvents penetrated the pores and hindered the permeation of water. In addition, water permeance of various types of membranes in PV was well correlated with hydrogen permeance in single-gas permeation. Furthermore, a clear correlation was obtained between the permeance ratio in PV and that in single-gas permeation, which was confirmed via the modified-gas translation model. These correlations make it possible to use single-gas permeation properties to predict PV performance.

中文翻译：

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通过硅基膜渗透蒸发：渗透蒸发和气体渗透性能的相关性和预测

渗透蒸发 (PV) 是一种膜技术，在工业应用中具有广阔的前景。为了更好地理解 PV 机理，在五种类型的有机二氧化硅和两种类型的碳化硅基膜上进行了各种类型的有机溶剂（甲醇、乙醇、异丙醇、叔丁醇和丙酮）的 PV 脱水，均具有不同的孔径。水的渗透性取决于有机水溶液的类型，这表明有机溶剂渗透了孔隙并阻碍了水的渗透。此外，PV中各种类型膜的水渗透性与单一气体渗透中的氢渗透性密切相关。此外，PV 中的渗透率与单一气体渗透中的渗透率之间获得了明显的相关性，这通过修正的气体转换模型得到了证实。