Year: 2026
Type: article
Abstract: Pressure vacuum swing adsorption (PVSA) is a key technology for gas separations, yet its cycle design and optimization remain computationally demanding. This work introduces a mass-balance-informed workflow that significantly reduces the number of simulations required to design PVSA cycles. By applying separation-limits analysis and material-balance constraints, we define theoretical bounds on product purity and recovery, thereby narrowing the parameter space that requires a detailed evaluation. The heavy product-to-feed ratio (H/F) is identified as a critical design variable, and the optimization problem is framed around achieving target separation performance at specific H/F values. The methodology is demonstrated by designing a PVSA for nitrogen rejection using ZSM-5 at a feed flow rate of 1000 Nm3/h. Two adsorption cycles were evaluated to illustrate the approach. Results show that this strategy enables rapid feasibility screening, guides cycle refinement, and accelerates process development without relying on extensive simulations.
Language: English
Subfield: Inorganic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7153993484
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