Crucial role of alkali metal ions and Si/Al ratio in selective adsorption of 1-octene using faujasite zeolites
Separation and Purification Technology(2023)
Abstract
•Separation of a linear α-olefin by alkali metal-exchanged faujasites was studied.•Si/Al ratio and cation type cooperatively influenced 1-octene adsorption.•Lithium low-silica X showed the highest 1-octene/n-octane separation efficiency.•Excellent 1-octene selectivity was explained by cation–π interactions.
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Key words
Alkali metal ions,Low-silica zeolites,Ion exchange,Linear alpha-olefin,Adsorptive separation
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