Mass transport, kinetic model, and application of CO2 adsorption on zeolite 5A granules

• Published in: Clean : soil, air, water air, water, 2024-01, Vol.52 (1), p.n/a
• Main Authors: Sangsuradet, Supawon, Worathanakul, Patcharin
• Format: Article
• Language: English
• Subjects: Adsorption; Air pollution; Biot number; Carbon dioxide; Carbon dioxide emissions; Diffusion; Emission analysis; Environmental degradation; Flow rates; Flow velocity; Granular materials; granules; Kinetics; Mass transfer; Mass transport; Mathematical models; Soil degradation; Soil pollution; Wastewater; zeolite 5A; Zeolites
• ISSN: 1863-0650; 1863-0669
• DOI: 10.1002/clen.202200406

Environmental damage ranges from soil degradation, air pollution, and wastewater from human‐induced activity. In this study, to reduce CO2 emission, zeolite granules were prepared manually. In addition, the mass transfer and kinetic adsorption were analyzed to understand the mechanism of CO2 adsorption using mathematical models. We studied the effects of amount of binder, temperature, granule size, and flow rate of CO2 on efficient CO2 adsorption on zeolite 5A granules of different sizes (3–4 and 6–7 mm). The kinetics of CO2 adsorption and mass transfer of zeolite 5A granules were evaluated for the rate‐limiting step. The results showed that decreasing the temperature and the amount of binder increased the CO2 adsorption capacity. We observed the highest CO2 adsorption capacity of 2.84 mmol g−1 at 298 K with 4 wt% of the binder at a flow rate of 2 L h−1. The pseudo‐first‐order sorption behavior was the best model with R2 > 0.9832, whereas the root mean square error model showed an R2