CO2 external purification device is a device used for extracting and purifying carbon dioxide (CO2) from mixed gases. In many industrial processes, including combustion, chemical production, power generation, etc., mixed gases containing CO2 are produced. The CO2 external purification device can separate CO2 from the mixed gas through adsorption, membrane separation, chemical absorption and other technologies, and purify it to obtain high-purity CO2 gas.

The process of extracting and purifying CO2 usually includes steps such as adsorption, desorption, condensation, distillation, etc. Different devices may use different technologies and processes. After extracting and purifying CO2, it can be used for industrial purposes, food and beverage industry, medical equipment, plant cultivation and other fields. In addition, extracting and purifying CO2 can help reduce greenhouse gas emissions in the atmosphere, promote carbon recycling and sustainable development.