Specialty — Gas Separation
SP-BG Series — Biogas Upgrading Membranes
Methane purification and CO₂ removal for renewable gas
Product description
The biogas membrane system is an efficient methane purification and recovery solution. It uses membrane separation technology to extract methane from other gas components in biogas, increasing methane purity and converting biogas into a clean, renewable energy source.
The system suits biogas from waste treatment plants, landfills and agricultural organic residues, enabling efficient methane recovery and purification under medium- to high-pressure conditions for natural gas grid injection or vehicle fuel.
Working principle: polymer membranes selectively allow certain gas components to pass — methane permeates more slowly and is enriched, while water vapour, carbon dioxide and nitrogen permeate faster. The system runs continuously under a pressure difference with no frequent chemical replacement.
Specifications
| Item | Parameter |
|---|---|
| Feed Gas Pressure | Up to 13.8 MPa |
| Hydrocarbon Recovery | ≥98% |
| Processing Capacity | 10 – 540,000 Nm³/h |
| Feed Gas CO₂ Concentration | Can handle >60% |
| CO₂ Removal Rate | ≥90% |
| Outlet CO₂ Content | ≤2% |
Performance figures are nominal values obtained under the standard test conditions stated with each table. Actual performance varies with feedwater chemistry, pretreatment, flux, recovery, temperature, pressure and operating practice. Individual element flow may vary from the nominal value. Specifications are subject to change without notice — request the current datasheet before specifying.
Typical applications
- Methane purification from biogas at food waste treatment facilities
- Biogas purification at wastewater treatment plants
- Processing of farm slurry and agricultural organic residues
- Waste management in breweries
- Purification of plant residues and organic waste in agricultural production
- Methane recovery and purification from landfill biogas
Related series
Need a datasheet or pilot support?
Share your feedwater analysis and target recovery — our engineers will recommend the right element and array configuration.