Depending upon the source from which CO2 gas is produced, the CO2 recovery process starts with a foam separator which removes foam from the incoming CO2. Foam free gas, may stored in a gas balloon, which – when full – will start the CO2 prurification process. After removal of the water soluble components in the Gas Washer, the gas is then compressed, deoderized and dried.
Ammonia based refrigeration plat liquefies the incoming CO2 and purges the unwanted non-condensables gases like oxygen and nitrogen. A stripping system provides additinoal CO2 purification, and transfers the liquid CO2 to storage tanks. Product liquid CO2 is normally transferred to tankers, and in few cases in cylinders.