Development of a hybrid adsorbent for CO2 capture by the physicalmixture of Na-ZSM-5 zeolite and activated carbon
Palavras-chave:
Hybrid materials, CO2 adsorption, TSA, physical mixtureResumo
In this work, we developed hybrid materials for CO₂ capture via temperature swing adsorption (TSA). These hybrids were produced by physically mixing activated carbon obtained from yellow mombin seeds and Na-ZSM-5 zeolite synthesized through a sustainable route (in three distinct compositions). The materials were characterized by SEM, XRD, TGA,
and textural analysis. The evaluation of CO₂ adsorption was performed by thermogravimetric analysis. The H-30Z/70AC hybrid adsorbent (30% zeolite/70% activated carbon) exhibited the best performance, with an adsorption capacity of 71.67 mg g⁻ ¹. Additionally, we studied the CO₂ /N₂ selectivity at 1 bar and 30°C, obtaining values of 4.6 for both H-70Z/30AC and H-50Z/50AC and 5.0 for H-30Z/70AC adsorbents, respectively, considering a flow rate of 100 mL min⁻ ¹ of a gas mixture of CO2:N2 in a 1:1 ratio
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