Cs-Bentonite Clay for Biogas Upgrading: A Numerical Assessment.

ABSTRACT: Biogas upgrading by vacuum-pressure swing adsorption involves the selective adsorption of CO₂ over CH₄ on a sorbent material to separate both components. This work assesses numerically the performance of the previously characterized Cs-exchanged bentonite clay for this separation. This benchmarking study includes the effect of the process cycle configuration (seven different configurations using one stage and up to three columns), the ambient temperature (15 or 25 °C), the feed biogas composition (CO₂ mole fraction of 0.35 or 0.45, balance CH₄), and the process operating parameters. Specific constraints on CH₄ purity and CH₄ recovery provide Pareto fronts for maximum productivity and minimum specific energy consumption. A tw

SUBMITTER: Mendel N 

PROVIDER: S-EPMC12022990 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature