CE 400 Gas absorption

GUNT CE 400

Gas Absorption Unit is designed for the separation of a CO₂/air mixture through counterflow absorption with water. The system generates a controlled gas mixture using CO₂ from a compressed gas cylinder and ambient air, with adjustable mixing ratios via valves. A compressor delivers the gas mixture into the DURAN glass absorption column (packed bed), where the CO₂ is absorbed by water.

The solvent is continuously regenerated in a desorption column operating under vacuum, ensuring an efficient closed-loop process. Temperature control is maintained via an integrated heating and refrigeration system using R513A refrigerant.

Technical Data & Specifications:

Absorption Column:

• Height: 2 × 750 mm
• Inner diameter: 80 mm

Desorption Column:

• Height: 750 mm
• Inner diameter: 80 mm

Pumps:

• Absorption/desorption pumps: Max. flow rate 17.5 L/min, max. head 47 m
• Cooling pump: Max. flow rate 29 L/min, max. head 1.4 m

Compressor:

• Max. positive pressure: 0.6 bar
• Max. flow rate: 62 L/min

Refrigeration System:

• Capacity: 1432 W at 5/32°C
• Refrigerant: R513A (GWP: 631)
• Filling volume: 600 g
• CO₂-equivalent: 0.4 t

Measuring Ranges:

• Flow rate:
  
  • Air: 0.2–2.4 Nm³/h
  • Solvent: 50–600 L/h
  • CO₂: 0.4–5.4 L/min
• Temperature:
  
  • 2x -200…100°C
  • 3x 0…120°C
  • 4x 0…60°C
• Pressure:
  
  • 1x 0…2.5 bar
  • 1x -1…0.6 bar
• Differential pressure:
  
  • 2x 0–250 mmWC
  • CO₂ content: 0–100 vol%

Operating Conditions:

• 230V, 50Hz, 1 phase
• 230V, 60Hz, 1 phase
• 230V, 60Hz, 3 phases (UL/CSA optional)

Included Items:

• DURAN glass absorption and desorption columns
• CO₂/air gas mixing system with adjustable ratio control
• Integrated compressor and pumps for solvent circulation
• Continuous solvent regeneration under vacuum
• Heating and refrigeration system with R513A refrigerant
• Multiple sensors for temperature, pressure, and CO₂ concentration

Dimensions & Weight:

• Unit (LxWxH): 1920 × 790 × 2300 mm
• Weight: Approx. 290 kg

Required for Operation:

• CO₂ gas cylinder with pressure-reducing valve
• Water connection and drain