CRP CO₂ Pump – Efficient Low-Temperature CO₂ Transfer for CCS and Industrial Applications

The OTECHOS CRP CO₂ pump is a compact and robust solution designed for reliable transfer of CO₂ under low-temperature and moderate-pressure conditions.

As carbon capture and storage (CCS) and CO₂ utilization projects scale up, there is an increasing need for efficient and reliable handling of CO₂ streams across varying phases and operating conditions. Conventional pump technologies often face limitations related to temperature sensitivity, phase instability, and efficiency when handling CO₂ at low temperatures and low differential pressure.

The CRP CO₂ pump addresses these challenges through a low-speed rotary displacement principle that ensures stable flow and high volumetric efficiency, even at low ΔP conditions. The technology is well suited for CO₂ transport in liquid or dense phase, including conditions down to -35°C and pressures up to 25 bar.

Developed and demonstrated as part of the ENCASE project, the pump is designed for durability and operational stability. It eliminates key failure drivers: no impellers exposed to erosion, no valves, and high tolerance to transient flow conditions. This ensures reliable operation in systems where phase changes and temperature variations can impact performance.

The compact and modular design supports flexible integration across the CO₂ value chain—from capture and conditioning, through transport and intermediate storage, to injection and utilization systems.

By enabling efficient and stable CO₂ handling, the CRP CO₂ pump supports scalable CCS infrastructure with reduced energy consumption and improved system reliability.

Applications

• CO₂ transport in CCS value chains
• Transfer of liquid or dense-phase CO₂
• CO₂ handling in capture and conditioning systems
• Low ΔP CO₂ circulation and transfer
• Intermediate storage and injection support systems
• Industrial CO₂ processes (e.g. PtX, refrigeration, process industry)

Key Benefits

• Stable performance at low temperatures (down to -35°C)
• Efficient operation at low differential pressure (ΔP)
• High volumetric efficiency for CO₂ handling
• Robust design with low wear and high reliability
• Tolerant to phase variations and transient conditions
• Compact and modular for easy system integration

Key Specifications (indicative)

• Fluid: CO₂ (liquid and dense phase, R744)
• Temperature range: down to ~ -35°C
• Pressure range: up to ~25 bar
• Differential pressure: optimized for low ΔP applications
• Operating principle: low-speed rotary displacement
• Configuration: transfer and circulation pump
• Modularity: adaptable to system requirements