Biogas Treatment Engineering
Downstream Product Processing
Product & Technical Features
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CBG Production
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Oil-free piston compressors (3–4 stages) compress biomethane from 1 MPaG to 20 MPaG for CNG cylinder bank storage and dispensing stations
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Bio-LNG Liquefaction
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Small-scale nitrogen expansion or MRC refrigeration liquefies biomethane to −162°C at ~430 kg/m³ storage density
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Liquid CO₂ Production
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Upgrading off-gas (CO₂ purity 95–99%) dried, refined, compressed, and condensed to liquid CO₂ at food-grade purity (> 99.9%)
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Core Advantages
| Product | Key Parameters | Main Application |
| CBG (Compressed Biogas) | CH₄ > 96%, 20 MPaG | Vehicle fuel at filling stations, pipeline injection |
| Bio-LNG | CH₄ > 98%, −162°C | Heavy-duty truck fuel, LNG sales |
| Liquid CO₂ (LCO₂) | Purity > 99.9% (Food-grade) | Beverage carbonation, dry ice, welding shielding |
Key Applications
We provide complete CBG filling station, LNG liquefaction unit, and liquid CO₂ production line design and supply for biomethane plants, maximizing value from biogas feedstock.
