In this work, adsorption breakthrough curves of single component and binary n-pentane and cyclohexane on hypercrosslinked polymeric resin (H-resin) and macroporous polymeric resin (M-resin) were investigated, respectively. The results showed that adsorption of n-pentane and cyclohexane on two polymeric resins was mainly based on the dispersion force. Polymeric resins exhibited the higher adsorption capacity for cyclohexane, which had a higher molar polarization. For adsorption of binary n-pentane and cyclohexane on H-resin, the phenomenon of "roll-up" (C/C0>1for n-pentane) was observed in the breakthrough curves since H-resin had stronger adsorption affinity to cyclohexane than to n-pentane. Moreover, the higher the concentration of cyclohexane was, the more significant the "roll-up" was. In addition, the competition phenomenon became insignificant with increasing the adsorption temperature from 30 to 50℃. However, co-adsorption was always observed for binary adsorption of n-pentane and cyclohexane on M-resin because M-resin, whose pore was mainly distributed in the region of macropore and mesopore, had similar adsorption affinity to cyclohexane and n-pentane.
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