Safe and efficient CO₂ compressors

The applications include precooling and main refrigerant compression, CO₂ (wet, supercritical) compression, CO₂ capture compression, flue gas compression, and expanders.

A CO₂ compressor increases the pressure of carbon dioxide gas to make it easier to transport or store. It works by reducing the volume of CO₂ using mechanical energy, typically through rotary or reciprocating motion.

Efficiency varies by design and operating conditions, typically ranging from 70% to 85%. Advanced systems may achieve higher efficiencies with energy recovery technologies.

• Pre-treatment (removal of impurities)
• Multi-stage compression
• Cooling between stages
• Dehydration
• Final pressurization for transport or storage

Impurities can corrode equipment, reduce compression efficiency, and compromise long-term storage integrity. Purification ensures safe and effective handling.

• Post-combustion capture (amine scrubbing)
• Pre-combustion capture (gasification)
• Oxy-fuel combustion
• Direct air capture (DAC)

Modern systems are increasingly efficient, especially when integrated with waste heat recovery and optimized multi-stage designs. Efficiency continues to improve with innovation.

• Power generation
• Cement and steel manufacturing
• Oil and gas
• Chemical production
• Direct air capture facilities

It is transported via pipelines, ships, or tankers, and stored in geological formations like depleted oil fields or saline aquifers, or used in enhanced oil recovery (EOR).