Recovery and purification of CO2 Carbon dioxide recovery devices are currently widely used in the beverage and food industries, and are also the most economical method for producing high-purity food grade carbon dioxide, provided that there is sufficient quantity and quality of crude carbon dioxide gas. The carbon dioxide recovery device is mainly used for the washing, purification, drying, liquefaction, and storage of CO2 gas received from the fermentation process, calcium chloride reaction process, and dry ice production process in breweries and distilleries. The carbon dioxide recovery device is automatic and requires the lowest operating cost.