Liquid CO2 Production Equipment

Product Overview

The Liquid CO₂ Production Equipment is specially designed to capture high-concentration carbon dioxide (CO₂) generated during alcohol fermentation, where CO₂ levels can exceed 99%. This high-purity CO₂ represents a valuable resource. With simple purification, the system produces liquid CO₂ suitable for both food-grade and industrial applications.

This equipment has been successfully applied in multiple alcohol production facilities, delivering significant economic benefits while meeting the growing market demand for high-purity CO₂.

Working Principle

The system purifies fermentation gas using a series of processes including strong oxidizing solution scrubbing, low-pressure compression, drying, and temperature- and pressure-swing adsorption to remove impurities and moisture. The purified CO₂ is then liquefied in the liquefaction unit. A PLC-controlled automation system manages the entire process, ensuring continuous, efficient, and stable operation.

Key Features

• High Recovery Efficiency: Approximately 0.95 tons of CO₂ can be recovered per ton of alcohol produced, with an actual recovery rate of 50–70%.
• High-Purity Output: Produces liquid CO₂ that meets food-grade standards and is suitable for diverse applications.
• Proven Technology: Scrubbing, compression, drying, and adsorption processes ensure low impurity levels.
• Automated Operation: PLC control enables fully automated operation, optimizing production efficiency.
• Significant Economic Benefits: Low energy consumption (mainly electricity and water) reduces operating costs while maximizing CO₂ recovery value.

Applications

• Food & Beverage Industry: For carbonated drinks, beer production, and protective gas applications in welding.
• Agriculture: Used as a greenhouse gas to enhance crop yields.
• Industrial Applications: Serves as a key raw material in chemical, pharmaceutical, and other industrial processes.
• Tobacco Industry: Applied in processing, handling, and preservation of tobacco products.
• Oilfield Operations: Used for CO₂-enhanced oil recovery and CO₂ recycling processes.