Sorption-Induced Diffusion-Selective Separation of Hydrocarbon Isomers Using Silicalite

摘要: In this paper we demonstrate a new principle for separation of linear and branched (2-methyl)alkanes, in the five to seven carbon atom range, by means permeation through silicalite membrane. The selectivity relies on subtle interplay between sorption diffusion. required isotherms pure components mixtures are generated using configurational-bias Monte Carlo (CBMC) simulations. CBMC simulations mixture isotherm show curious maximum loading 2-methyl alkane; decreases almost zero with increased pressures. high alkane is due entropic effects; has higher “packing” efficiency than within zeolite structure. Calculations 50−50 n-hexane (n-C6) 2-methylpentane (2MP), example, that effect enhancing flux n-C6 membrane up ...