The adsorption coefficient and diffusion coefficient of pure component for five component simulated gasoline in PEG membrane can be regressed from sorption experiment.

It is precisely because the difference between adsorption coefficient and diffusion coefficient provides a theoretical basis for the gasoline desulphurization by PEG membrane.

In this paper, the recent progress of adsorption desulfurization of gasoline using adsorbents based on activated carbon, molecular sieve, metal oxide and clay materials was reviewed.