Biogas Upgradation using Pressure Swing Adsorption

See on Scoop.itEnergy Blog

Pressure swing adsorption (PSA), also known as carbon molecular sieves, is the second most commonly used biogas upgrading technology in Europe.

Salman Zafar‘s insight:

The upgrading takes place over 4 phases: pressure build-up, adsorption, depressurization and regeneration. The pressure buildup is achieved by equilibrating pressure with a vessel that is at depressurization stage. Final pressure build up occurs by injecting raw biogas. During adsorption, CO2 and/or N2 and/or O2 are adsorbed by the media and the gas exits as CH4.

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