
Biogas Purification EngineeringAdvanced gas desulfurization, CO₂ separation, and turnkey plant technologies compliant with Indian SATAT & IS 16087 standards.
Proven gas desulfurization, CO₂ scrubbing, and turnkey plant technologies compliant with Indian SATAT and IS 16087 standards.

Complete concept-to-commissioning setup of Commercial Compressed Bio-Gas (CBG) infrastructure.

Eco-friendly bio-trickling filter using specialized bacterial cultures to neutralize high H₂S without chemical consumption.

Chemical absorption scrubbing using Sodium Hydroxide (NaOH) for rapid, high-efficiency desulfurization down to <5 ppm.

Physical absorption gas separation utilizing pressurized water wash to dissolve and separate CO₂ and H₂S from raw methane.

Chemical absorption using regenerable amine solvents (MEA/MDEA) achieving ultra-pure >99.5% Methane recovery.
Compare feedstock gas quality before and after passing through Greliance biological scrubbing and membrane separation systems.
| Gas Component | Formula | Raw Biogas (Inlet) | Purified CBG (IS 16087) | Scrubbing Efficiency |
|---|---|---|---|---|
| Methane (CH₄) | CH₄ | 60% - 70% | 95% - 98% | Enriched (+50%) |
| Carbon Dioxide (CO₂) | CO₂ | 30% - 39% | 2% - 5% | 90% Removed |
| Hydrogen Sulphide (H₂S) | H₂S | 500 - 3,000 ppm | < 5 ppm | 99.9% Scrubbed |
| Water Vapour (H₂O) | H₂O | 4% (Saturated) | < 10 ppm | Dry / Removed |
| Nitrogen (N₂) | N₂ | 0.8% - 1.5% | < 0.1% | Reduced |
| Oxygen (O₂) | O₂ | 0.2% - 0.5% | < 0.1% | Reduced |