Greenlane Renewables (GRN.TO) said Tuesday testing of its proprietary Linear Nitrogen Rejection Unit (NRU) technology achieved methane recovery rates of up to 99.5%.
The company said the technology is part of its next-generation Cascade LF landfill-gas upgrading system, which is designed to turn landfill gas into pipeline-quality renewable natural gas while maximizing methane capture at a lower cost.
The system removes nitrogen from landfill gas using a pressure swing adsorption process that requires fewer and smaller components than traditional systems. For landfill gas with higher nitrogen levels, the modular system can add more adsorption beds and compression stages while maintaining the same design, according to the statement.
"Results from the testing were slightly better than Greenlane's initial performance expectations and correlated well with modeled results calculated based on adsorption fundamentals," the company added.
Greenlane shares closed up $0.005 to $0.22 on the Toronto Stock Exchange.