Greenlane files patent application for linear NRU

Executive Summary

• Greenlane Renewables Inc. has filed a new patent application for a linear nitrogen rejection unit (NRU), a key component of its next-generation Cascade LF landfill gas upgrading platform.
• The new linear NRU technology, based on equilibrium pressure swing adsorption (PSA) principles, eliminates wasteful internal gas recycling and uses fewer/smaller adsorption beds, resulting in lower operating and capital costs and higher methane recovery.
• The company is currently quoting Cascade LF products incorporating this new technology, with a target for the first system delivery before the end of 2026.

Key Details

• Patent Filing: New application filed for a linear nitrogen rejection unit (NRU) as part of the Cascade LF product line.
• Technology Mechanism: The linear NRU utilizes a step-wise gas enrichment process that eliminates internal gas recycling and reduces the number and size of adsorption beds compared to conventional equilibrium PSA NRUs.
• Performance Benefits: The innovation enables higher methane recovery performance at a lower cost, specifically addressing landfill gas with increasingly higher levels of nitrogen through a modular design with staged compression.
• Commercial Status: The company revealed Cascade LF to customers last month and is currently quoting systems that incorporate the linear NRU.
• Delivery Timeline: The company targets the first system delivery before the end of 2026.
• Strategic Context: This filing builds upon other patent applications filed within the last 12 months, reinforcing Greenlane's technology leadership in biomethane/renewable natural gas (RNG) production.
• Broader Applications: The linear NRU technology may have applications beyond biogas, potentially broadening the reach of Greenlane's technology in decarbonization efforts.

Notable Quotes

• "This patent filing marks another important milestone in our commitment to customer-focused innovation and relentless pursuit of improving the state-of-the-art of technology in our industry... We are now quoting our Cascade LF products incorporating the linear NRU, targeting the first system delivery before the end of 2026." — Brad Douville, CEO
• "As landfill gas remains the largest and most technically challenging feedstock for RNG production, we continue to focus on developing solutions that make upgrading simpler, more reliable and more cost-effective -- all while increasing performance." — Brad Douville, CEO