Zeolitização de fibras de vidro para enriquecimento de biogás

Abstract

The growing global energy demand has driven the search for alternatives aimed at implementing sustainable and efficient energy processes. Among these alternatives, biogas, produced through organic and biochemical processes, has emerged as a promising energy source. Biogas is a gaseous mixture composed primarily of methane (CH₄, 50–75%) and carbon dioxide (CO₂, 25–50%), along with minor components such as hydrogen, hydrogen sulfide, oxygen, ammonia, nitrogen, and water vapor. To utilize biogas as a fuel, prior purification is required to remove water and H₂S (desulfurization), followed by enrichment, which involves the selective removal of CO₂ to increase the calorific value of CH₄. Adsorptive processes offer several advantages for biogas enrichment, with the choice of adsorbent being a critical factor for process efficiency. In this context, zeolites, highly porous crystalline aluminosilicates, stand out as effective adsorbents and can be synthesized through different routes. Therefore, the present study aims to synthesize sodium-type NaA zeolite on glass fiber cartridges, targeting the development of a composite material with high chemical and mechanical stability, thereby providing properties suitable for fixed-bed applications in biogas enrichment.