CO2 Reuse
CO2 Capture for industrial use
Biogas produced by Anaerobic Digestion contains mainly methane (CH4 - 50 to 70%) and carbon dioxide (CO2 - 30 to 45%).
Following the upgrading of Biogas into Biomethane the stream usually released into the atmosphere - called "off-gas" - contains about 99% CO2 and 1% CH4.
V'COOL unit liquefies this CO2 while recovering the residual methane which can be returned to Biogas plant.
Why reuse CO2?
- To reduce greenhouse gas emissions
- To capture the last methane residues in the "off-gas" and to optimize the plant's upgrading efficiency as much as possible
- To market bio-CO2 to various industries, such as agriculture and food processing ...
“Green CO2” used in different industries
The technology developed by PRODEVAL meets the needs of various sectors of activity such as:
Agriculture
for cultivation in greenhouses
Food industry
for freezing, food preservation, beverage carbonation etc.
Materials
for picking metal parts, additives (manufacture of particle filters)
Chemistry
for supercritical fluid extraction/chromatography, cryogenic grinding, carbonating agent
Transversal Processes
for cooling purposes, laser technology, arc welding, etc.
And many other uses
such as smoked effects with dry ice, anti-limescale treatment, dry ice for extinguishers, propellants for aerosols