Volm Conical Liquid Ring Compressors: Safeguarding Green Chemical Production—AMPS/AMPS-Na Case Study
Under global green chemistry trends, AMPS and AMPS-Na have replaced traditional toxic additives. In one production project, compressing 1,000 Nm³/h acrylonitrile-containing gas to 0.55 MPa(G) demanded extreme safety—acrylonitrile ignites upon heat exposure, releasing toxic fumes. Volm’s HPM Conical Liquid Ring Compressor, using acrylonitrile as working fluid, delivered a breakthrough solution.
Different Compressor Comparison
Centrifugal/reciprocating compressors proved unsuitable for acrylonitrile gas. Volm’s liquid ring technology excels in safety and adaptability.
| Dimension | Liquid Ring Compressor | Centrifugal Compressor | Reciprocating Compressor |
|---|---|---|---|
| IsothermalCompression | ✅Max. ΔT:10°C(Prevents gas decomposition) | ❌ High ΔT (50~150°C)(Explosion risk) | ❌Moderate ΔT (30~100°C)(Requires energy-intensivecooling) |
| Liquid/SolidTolerance | ✅ Handles liquids/solids(Non-metallic, corrosion-proof) | ❌Strictly gas-only(Impeller erosion risk) | ❌ Limited solid tolerance(Valve/piston damage) |
| StructuralSimplicity | ✅ Single moving part(Oil-free, low maintenance) | ❌ High-speed Impeller and complex seals/lubrication | ❌ Multiple moving parts(Frequent maintenance) |
| Safety & Eco-Compliance | ✅ Oil-free + low-temp design(Zero contamination) | ❌ Oil leakage risk(Requires enhancedanti-explosion design) | ❌ High lubricant consumption(Media pollution,separation required) |
HPM Conical Liquid Ring Compressor Advantages
1. High Discharge Pressure
• Max. discharge: 0.75 MPa(G)(exceeding project’s 0.55 MPa(G) target with 36% margin).
2. Energy Efficiency
• Radially arranged large-diameter ports reduce flow resistance;
• Double-acting mechanism: dual suction/compression per rotation → 40% higher efficiency vs. single-acting designs, and self-balanced radial forces.
3. Safety & Reliability
• Design pressure: 2.5 MPa (well above operating pressure);
• With a conical distributor structure, inlet pressure fluctuations have minimal impact on the compressor.
Operational Results
This case study establishes Volm’s conical liquid ring technology as the benchmark for hazardous gas compression in green chemistry.
| Metric | Result |
|---|---|
| Max. Temperature Rise | ≤10°C |
| Acrylonitrile Safety | Zero incidents |
| O&M Cost Reduction | -30~50% V. Centrifugal/Reciprocating |
