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PuregasCA (biogas upgrading plant)
PuregasCA Technology recovers over 99.9% of the biomethane present in raw biogas by separating CO2 from the biogas through chemical adsorption.

Provide solutions for biogas upgrading
Nord Gas Solutions' PuregasCA Technology recovers over 99.9% of the biomethane present in raw biogas by separating CO2 from the biogas through chemical adsorption. The selective organic solvents used are so efficient that the product gas also is highly suitable for direct injection into the gas grid without any enrichments.
Together with the low need for gas pre-treatment, high availability and lowest power consumption the PuregasCA Technology provides plant owners higher project profitability. It's even possible to capture the CO2 from the plant for industrial or food purposes, increasing revenue further.
Nord Gas Solutions' biogas upgrading plants are based on the PuregasCA technology, an amine scrubber optimised for biogas and small-scale natural gas polishing.
Technical Data
- Power consumption <0.11 kWh/Nm3 biogas
- >90% heat recovery
- Designed for unmanned operation
- Plant delivered in Factory Tested (FAT) and weatherproof modules
- Methane recovery >99.9%
- Availability >98%
- Clean CO2 off-gas stream – suitable for upgrading to industrial or food purposes
- Capacities: 500 to 6,000 Nm3/h raw biogas
- Delivery time: 8 to 11 months from order to operation
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