A VPSA (Vacuum Pressure Swing Adsorption) Skid is an advanced modular system designed to upgrade raw biogas or natural gas by selectively removing impurities such as carbon dioxide (CO₂), nitrogen (N₂), and other trace gases. The process enriches methane (CH₄) concentration, producing high‑purity gas suitable for industrial, commercial, and energy applications.

Working Principle

• Adsorption Cycle: Raw gas is passed through adsorbent beds (typically zeolite or activated carbon) under pressure. Impurities are trapped while methane flows through.
• Desorption Cycle: A vacuum is applied to regenerate the adsorbent, releasing captured gases for safe disposal or utilization.
• Continuous Operation: Multiple beds operate in sequence, ensuring uninterrupted methane enrichment.
• Skid‑Mounted Design: Compact, pre‑assembled modules allow easy installation, relocation, and integration with existing facilities.