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Intracrystalline diffusivities of Y type zeolite were measured in the temperature range of 323-573 K for four aromatics; benzene, toluene, and ortho-, and para-xylene, and four paraffins: n-hexane, n-heptane,n -octane and iso-octane. Three model equations for calculating the intracrystaline diffusivity were derived each based on one of the factors thought to control the diffusion: the probability...
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