Canada-based Greenlane Renewables, through its wholly owned subsidiary Airdep, has secured new purchase orders exceeding $2 million (€1.3 million) from a repeat customer. The orders are for the supply of multiple units of Greenlane’s proprietary biogas desulfurisation equipment, which will support the production of renewable natural gas (RNG), also known as biomethane.
“Our aim at Greenlane is to make RNG projects more accessible and scalable by solving the industry’s most challenging technology problems—one of which is biogas desulfurisation,” said Brad Douville, CEO of Greenlane.
“All biogas projects require hydrogen sulfide removal, and our desulfurisation product line has set the standard in Italy. It is now gaining traction in global markets.”
The system works by feeding untreated raw biogas into the bottom of a scrubbing tower, where it flows countercurrent to a proprietary liquid chemical solution. Treated gas exits through the top of the scrubber, while the sulfur-rich liquid is regenerated in a separate oxidation tank. It is then transferred to a sedimentation tank, allowing elemental sulfur solids to settle. The clean, regenerated solution is continuously cycled back to the scrubbing tower for reuse.
A key advantage of Greenlane’s system is that it does not require the addition of oxygen, nor does it introduce oxygen into the treated gas. This is crucial because excess oxygen—common in alternative technologies such as biological scrubbers or direct digester injection—is expensive and difficult to remove. Moreover, it can cause pipeline injection non-compliance, potentially leading to pipeline shutouts.
This order further cements Greenlane’s position as a global leader in advanced biogas upgrading technologies, supporting the shift toward a low-carbon energy future.