Abstract

Due to the surging demand of lithium for lithium-ion batteries, the price of lithium has seen a steep rise and is projected to maintain the trend for the foreseeable future. With Li-LSX being the sorbent of choice in pressure swing adsorption systems for air separation, it is imperative to develop efficient adsorbents with significantly lower lithium content (mixed-cations zeolites) or completely replace it with abundant and low-cost alkali-earth metal cations such as Sr2+. This article presents promising results for pure Sr-LSX zeolite for O2 productivity performance via PSA and the possibility of completely replacing Li-LSX with Sr-LSX.

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