Oil-Free CO₂ Compressor is specifically engineered for carbon dioxide gas recovery and supercritical fluid extraction applications. Featuring a unique fan-type cooling system and three-stage compression technology, this compressor efficiently handles both negative and positive intake pressures while delivering pure, oil-free CO₂ output. The robust design with stainless steel gas path components ensures reliable performance in demanding industrial environments.



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Core Features
100% Oil-Free Compression Technology: Utilizes PTFE-filled piston rings and packing to ensure zero oil contamination, suitable for food-grade CO₂ and high-purity industrial applications.
High-Flow Efficient Design: Delivers a flow rate of 2800 Nm³/h at 1.1 MPa inlet pressure, meeting large-scale gas processing demands.
Single-Stage High-Pressure Output: Achieves pressure increase from 1.1 MPa to 3.4 MPa with a single-stage compression system, ensuring simplicity and reliability.
High-Efficiency Permanent Magnet Motor Drive: Equipped with a 200 kW high-efficiency permanent magnet motor, significantly reducing energy consumption and ideal for continuous operation.
Water Cooling System: Includes a 15 t/h water cooling system to effectively control discharge temperature (≤50°C after cooling).
Skid-Mounted Structure: Reciprocating piston vertical skid-mounted design for easy installation and compact footprint (3800 × 2200 × 2550 mm).
Full Stainless Steel Gas Path: Gas valves and cylinder liners made of stainless steel for corrosion resistance and long service life.
Technical Parameters
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Medium | CO₂ | Quantity | 1 unit |
| Inlet Pressure MPa(G) | 1.1 | Inlet Temperature °C | 0~40 |
| Discharge Pressure MPa(G) | 3.4 | Discharge Temperature (after cooling) °C | ≤50 |
| Flow Rate Nm³/h | 2800 (at inlet pressure = 1.1 MPa) | Piston Stroke mm | 180 |
| Model | 2800/11-34 | Compression Stages | 1 stage |
| Structural Style | Reciprocating piston vertical skid-mounted type | Cylinder Quantity | 2 |
| Shaft Speed r/min | 425 ※ | Voltage | 380V 50Hz |
| Cooling Mode | Water cooling | Cooling Water Flow t/h | 15 |
| Shaft Power kW | 150 | Main Motor Speed r/min | 425 ※ |
| Main Motor | 200 kW 380V 50Hz High-Efficiency Permanent Magnet Motor ※ | ||
| Dimensions mm | L3800 × W2200 × H2550 ※ | Weight t | 7.5 ※ |
| Interface Size mm | Inlet DN100 / Discharge DN65 / Cooling Water DN65 | ||
| Drive Mode | Coupling direct connection | ||
| Main Component Materials | |||
| Frame and Slide | Cast Iron | ||
| Piston Rings, Packing | PTFE-Filled | ||
| Air Valve and Cylinder Liner | Stainless Steel |
Typical Applications
Large-scale CO₂ recovery and liquefaction systems
Centralized gas supply systems for the food and beverage industry
Process gas boosting and transportation in chemical industries
Mid-stage compression in carbon capture and storage (CCS) projects
Gas supply systems for supercritical fluid extraction (SFE)
Scope of Supply
Main unit, high-efficiency permanent magnet motor, water cooling system, skid-mounted chassis, control system, inlet/outlet flanges, safety valve set, and complete technical documentation.
Notes
Data marked with "※" can be adjusted according to actual working conditions and customer requirements.
The equipment complies with ISO 8573-1 Class 0 oil-free air standards.
Customizable pressure and flow rates, with optional PLC/touchscreen intelligent control systems.
Delivery Time
Approximately 90–120 days after contract生效 (subject to project schedule coordination).
Monday - Friday:8:30—17:00