Brewery CO2 Recovery System

From Fermentation Byproduct to Brewery Gold

Every fermentation cycle releases a significant amount of high-purity CO2. Our state-of-the-art CO2 Recovery System is engineered to capture this valuable resource, purify it to beverage-grade standards, and make it available for reuse. This isn't just an equipment upgrade; it's a strategic investment in quality control, cost reduction, and sustainable brewing practices.

1. Multi-Stage Purification: The Path to Purity

Our system uses a sophisticated, multi-stage process to ensure the final product is free from impurities, organic compounds, and unwanted gases.

• Initial Cleansing: Raw gas from your fermenters first enters a Foam Trap to remove any entrained foam, followed by a Washing Tower. Using advanced packing media and specialized nozzles, this tower scrubs the gas with water to eliminate the vast majority of water-soluble organic impurities and odors.

• Three-Stage Compression: The washed gas is buffered in a gas balloon and then fed into a dedicated, three-stage CO2 Compressor, raising the pressure to 1.5-1.8 MPa in preparation for drying and liquefaction.

• Advanced Two-Step Drying:

1. A Refrigerant Dryer first chills the gas to 2-4°C, removing a significant amount of moisture.

2. The gas then passes through an Activated Carbon Filter for further removal of organic traces before entering the PLC-controlled Desiccant Dryers for deep drying, achieving an atmospheric dew point of ≤ -60°C. This ultra-low moisture level is critical for preventing ice formation and ensuring system integrity.

2. High-Efficiency Liquefaction & Impurity Removal

The core of the purification process occurs during liquefaction.

• The clean, dry, pressurized CO2 gas enters a CO2 Evaporating Condenser, where it is chilled to -18°C by a dedicated refrigeration unit.

• At this low temperature, the CO2 liquefies. Critically, non-condensable gases like oxygen and nitrogen (O₂ & N₂)—which are detrimental to beer quality—remain in their gaseous state and are automatically vented off. This step significantly boosts the final CO2 purity to ≥99.95%.

3. Secure Storage & On-Demand Vaporization

• Insulated Storage: The liquefied CO2 is transferred to a 5m³ cryogenic storage tank, insulated with high-efficiency polyurethane to maintain its -20°C temperature and pressure. The tank is equipped with automated safety relief systems and a clear liquid level display for reliable and safe operation.

• Ready for Use: When you need CO2 for carbonation, packaging, or purging, our automated, water-bath CO2 Vaporizer provides a stable and reliable supply of gaseous CO2. Its capacity is designed to exceed the recovery rate, ensuring you have plenty of CO2 available even during peak demand.

4. Intelligent Control and Optional Purity Upgrade

• Automated & Safe: The entire system features a comprehensive control panel with displays for all key operational parameters. The compressor and refrigeration units have independent control and fault-shutdown systems for maximum safety and reliability.

• Optional High-Purity System: For breweries with the most stringent quality demands or those looking to sell CO2, an optional CO2 Polishing System can be added to achieve even higher levels of purity.

Technical Specifications

Take Control of Your CO2 Supply 

Invest in self-sufficiency and superior quality control. Our CO2 Recovery System is a proven, reliable solution to lower your production costs and enhance your sustainability credentials.

Contact our engineering team today to discuss how this system can be integrated into your brewery, request a detailed proposal, and get a customized quote.