CO2 Recovery

Green CO2 technologies at the service of the environment

Biogas upgrading releases two flows :

This “off-gas” can be processed to recover and recycle the CO2 it contains.

Arol Energy offers effective biogenic CO2 production and recovery solutions using innovative technologies which are contributing to the energy transition and the improvement of the overall facility and profitability.

CO2 Liquefaction

The bio-CO2 produced within the upgrading
process can be liquefied and transported to
consumption sites: injection of CO2 in
agricultural greenhouses, production of dry ice,
food and chemical industries, production of
coolants, etc.

Principles of CO2 liquefaction
technology

  • Compression and dehumidification of
    the off-gas from biogas upgrading

  • Adsorption treatment of undesirable compounds (volatile organic compounds, sulfur
    compounds, etc.)

  • CO2 liquefaction including the recovery of non-condensable gases, including methane

  • Non-condensable gases recycling within the biogas upgrading unit

  •  Liquid CO2 storage

Advantages of the CO 2 liquefaction
technology

  • Source of additional revenues
  •  Reduction of greenhouse gas emission
  • Full recovery of the methane present in the
    biogas
  • Units of 150 to 1000 kg/hr of CO2
  • Compatible with our AE-Compact, AE-
    Membrane and AE-Amine biogas upgrading
    technologies
  • Compatible with all other biogas cleaning
    systems
  • Flexibility of operation
  • Performance monitoring tool

Methanation

Methanation, a technology of the future, allowing methane production from carbon dioxide and hydrogen.

Advantages of methanation:

  • To produce more methane
  • To consider injection of methane in the same way as the biomethane produced directly from biogas upgrading
  • To eliminate greenhouse gas emission (off-gas not rejected)
  • Complete biogas recovery
  • Contribution to energy transition