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Wei Zhang,Shulan Ji,Naixin Wang,Jiding Li 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.27 No.-
In this work, the solution and diffusion properties of n-heptane, thiophene, 2-methylthiophene, 2,5-dimethylthiophene, ethyl sulfide, butyl mercaptan in poly[bis(phenoxy)phosphazene] (PBPP) werestudied by inverse gas chromatography. The infinite dilute activity coefficients and diffusion coefficientswere determined. Effects of temperatures and solvent species on the activity coefficients and diffusioncoefficients were investigated. The results showed that higher temperature was beneficial for bothsolution and diffusion process. Compared with pervaporation desulfurization performance in ourprevious work, the order of infinite dilute diffusion coefficients was in agreement with that of partialflux, which indicated that diffusion decided the permeability within solution–diffusion model.