Renewable natural gas and bio-CO2 production in Canada through Bright Renewables
Benefits for the whole region
Biogas upgrading and CO2 liquefaction technology will deliver environmental and economic benefits across the York region. The facility will convert 165,000 tons of organic waste annually into high-quality RNG. The organic waste is collected from the region’s green bin program and the produced renewable natural gas is equivalent to 5,000 Canadian households.
Project scope
Bright Renewables will build a large-scale biogas upgrading system with a capacity of 2,500 Nm3/hr of biogas. The technology utilizes membranes with high separation efficiency, as they enable the maximization of renewable natural gas yield. Additionally, the project features a 2,000 kg/hr CO2 liquefaction system to recover the CO2 from the upgrading process. The recovered CO2 is converted to liquid bio-CO2 using carbon dioxide itself as a natural refrigerant, creating an environmentally friendly and energy-efficient process.
The full project scope consists of biogas treatment, biogas upgrading system, a RNG compressor, heat recovery, a CO2 liquefaction system, and CO2 storage tanks. Through a control and automation system, gas analysis and instrumentation system, and liquid CO2 analyser, the facility oversees biogas, RNG and bio-CO2 quality. By controlling this in-house there is no need for a third party, improving the efficiency of the facility and guaranteeing high-quality production.