Pressure/vacuum swing adsorption

At increased pressures, biogas passes through a series of adsorption beds, each packed with carbon molecular sieves. This adsorption medium is capable of separation of CO2 from methane under pressure. Other components that are completely or partially removed are water, nitrogen and oxygen. Liquid water and hydrogen sulfide are contaminants in this process and must be removed in advance.more than 97% methane recovery
dry process, no need for further drying of biomethane
possibility of partial removal of nitrogen and oxygen
suitable for the upgrading of landfill gas

Characteristics of the pressure adsorption process

  • more than 97% methane recovery
  • dry process, no need for further drying of biomethane
  • possibility of partial removal of nitrogen and oxygen
  • suitable for the upgrading of landfill gas

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