Vacuum pervaporation experiments were conducted to recognize the efficiency of organosulfur compounds (OSCs) separation from gasoline using commercial hydrophobic membranes. Three of typically presented in gasoline sulfur species, i.e. thiophene, 2-methylthiophene and 2,5-dimethylthiophene, were selected to investigate the different sulfur compounds removal efficiency from n-octane/sulfur species used as a model gasoline. The influence of process parameters such as feed temperature, feed concentration on OSCs removal from model n-octane/sulfur compound mixtures was also examined. During the test, the commercial hydrophobic PEBA-based and PDMS-based composite membranes were applied. Conducted experiments with chosen sulfur species confirmed that the structure of a component and the resulting differences in the affinity toward tested membrane and physico-chemical properties can influence the membrane performance and led to different separation efficiency. Total flukes for n-octane/thiophene, n-octane/2-methylthiophene and octane/2,5-dimethylhiophene mixtures at 30 degrees C were equal to be 1.33, 1.42 and 1.29 kg/m(2) h in case of PEBA membrane and 7.21, 7.48 and 7.34 kg/m(2) h for PDMS-base membrane, with the corresponding separation factor beta values of 7.04, 3.95 and 1.25 for PEBA and 2.95, 1.56 and 1.01 for PDMS, respectively. The intrinsic selectivity for tiophene/n-octane mixture (alpha(T/O)) also indicated that PEBA membrane (alpha(T/O) approximate to 18) is much more selective than PDMS one (alpha(T/O) approximate to 7.5). (C) 2016 Elsevier B.V. All rights reserved.