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Different enthalpic, entropic and packing effects occurring in zeolites are reviewed which can be used to control elution order in the gas and liquid phase separation of linear and branched alkanes. Ordering effects in ZSM-5 can be used to separate long linear alkanes, even when only different by one carbon. Inverse selectivity occurs with stronger adsorption of the shorter chain, and azeotropes can...
The competitive hydroconversion of heptane and nonane molecules in their mixture was studied in a continuous flow, fixed-bed reactor filled with Pt/HY zeolite catalyst. Liquid-phase reaction conditions were established at reaction temperatures of 230, 250, and 270 o C by pressurizing the reactor at 100 bar. Hydrogen was supplied in an absorbed state with the liquid hydrocarbon feed. Under...
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