Working Principle of Lithium Battery CO2 Removal Dryer

The decarbonizer adopts the principle of pressure swing adsorption and temperature swing adsorption to remove carbon dioxide and dry compressed air.

Process Flow of Lithium Battery CO2 Removal Dryer

Raw air is compressed by the compressor to the required pressure and enters the air storage tank. The gas then passes through a precision C-grade filter to remove free water and oil, followed by a refrigerated dryer and a precision T-grade filter for further dehydration. It then enters the CO2 removal micro-heat dryer and precision A-grade filter, reducing the CO2 content in the compressed air to ≤5 ppm. Through adsorption dehydration, the dew point of the compressed air is lowered to below -60°C, removing a significant amount of moisture. Finally, the air passes through a precision filter to eliminate trace dust.

The compressed air quality achieved by this configuration is as follows:

Dew point of the product gas ≤ -60°C

Oil content in the outlet air ≤ 0.01 ppm

Dust particle size in the outlet air ≤ 0.01 μm

CO2 content in the outlet air ≤ 5 ppm

Adsorbents for Lithium Battery CO2 Removal Dryer

Activated alumina and high-quality 13X molecular sieve are porous, high-strength products with a strong affinity for water. They are adsorbents used for deep drying of trace moisture and effectively removing and reducing carbon dioxide content. They feature characteristics such as no softening, no expansion, and no pulverization when soaked in water within the medium. As a result, they are widely used in the petrochemical industry for gas and liquid phase drying, textile industry, oxygen production industry, and automated instrument air drying. The products exhibit high strength, good wear resistance, and a high net heat of the single-molecule adsorption layer.

Technical Parameters of Lithium Battery CO2 Removal Dryer

Processing capacity: - Nm3/min

Working pressure: 0.6-0.8 MPa

CO2 content: ≤ 5 ppm

Dust particle size: ≤ 0.01 μm

Oil content: ≤ 0.01 ppm

Dew point: ≤ -60°C

Continuous operation time: ≥ 8400 h

Product Features of Lithium Battery CO2 Removal Dryer

◆ Energy-saving, low dew point, easy operation, high cost-effectiveness

◆ Stable and consistent outlet air dew point

a. Rational cylinder design and control ensure a slower airflow speed through the dryer, increasing the contact time between compressed air and desiccant, meeting the requirements for dew point and CO2 content of the product gas.

b. A 10% desiccant reserve compensates for natural aging of the desiccant, ensuring optimal performance throughout its expected lifespan.

c. Large diffusers ensure uniform airflow through the desiccant layer, eliminating channeling.

d. Before the airflow enters the cylinder, oil removal treatment instantly removes oil and heavy contaminants from the airflow, preventing contamination of the desiccant layer. The equipment uses innovative pneumatic valves and advanced, reliable PLC program controllers, featuring automatic timing and switching. It operates stably and reliably, unaffected by power grid, voltage, or electric field fluctuations. No foundation installation is required, making installation simple.

e. Ingenious program design ensures timely operation of all pneumatic butterfly valves, maintaining stable pressure and flow throughout the cycle switching process.

◆ High overall energy efficiency

High-temperature unsaturated intake air is fully utilized in the equipment's heating regeneration process, completing the regeneration of the adsorbent in the regeneration tower. This results in minimal gas loss during regeneration, achieving an optimal combination of high energy efficiency and low failure rates.

◆ Long desiccant service life

1. Appropriate cylinder size and control maintain an optimal airflow velocity through the desiccant, preventing desiccant movement and dust dispersion while reducing pressure loss.

2. Efficient oil removal filters treat the airflow before it enters the cylinder, instantly removing moisture, oil, and heavy contaminants, preventing contamination of the desiccant layer.

3. Desiccant replacement cycle is over 3 years, and the pneumatic valve lifespan exceeds 1.5 million trouble-free operations.