CRYOSERV’s stack gas recovery systems type “STACKREC” offers energy savings up to 45%, reduced cost and protects the environment. This innovative type of plant meets high grade CO₂ quality requirements and fulfils the ISBT specification.

The process is based on absorption of CO₂ out of CO₂-rich stack gases into an aqueous Monoethanolamine Solution (MEA sol.). The solvent MEA is heated up by a steam heated re-boiler or an internal burner system to desorb the CO₂ gas. After the following process steps of compression, purification and liquefaction the CO₂quality will meet international specifications for food grade CO₂.

Advantages of CRYO-STACKREC plants:

• Only standard chemicals used: No expensive license fees for patented solvents to be paid!
• No corrosion problems: All surfaces coming in contact with hot MEA solution will be made out of stainless steel! No corrosion inhibitors needed, no permanent checking of MEA concentration required!
• Flexible plant design, customized to your specific stack gas conditions.
• Low operating cost due to high efficient process and usage of standard chemicals.