The Netherlands-headed technology specialist Bright Renewables, part of HoSt Group has announced that having completed a successful previous project in Scotland, it has been contracted by the same client for five new projects in Scotland.
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For four of these projects, Bright Renewables will realize biogas upgrading systems. For the fifth project, the company will realize a biogas upgrader and a carbon dioxide (CO2) liquefaction system.
The liquid bioCO2 will be marketed by the client and the biomethane aka renewable natural gas (RNG) will be injected into Scotia Gas Networks (SGN) gas grid.
We are proud to be contracted to complete five follow-up projects for the same client. With these projects, we continue our strong collaboration. The UK government encourages green gas production through the Green Gas Support Scheme (GGSS), which allows for projects like these to be realized. With the preparation of our CO2 liquefaction system, an even better carbon footprint is achieved. Our CO2 units are also very suitable for retrofitting at existing biogas upgrader units, said Jeffrey Kruit, Sales Engineer at Bright Renewables.
At the Scottish biogas production facilities, the biogas from various waste streams will be upgraded to biomethane using membrane upgrading technology. The biogas upgraders – the PurePac Grand – have the capacity to upgrade 1 600 Nm3 per hour of ingoing biogas and can be expanded to 1 800 Nm3/hr by retrofitting membrane modules.
Circular cooled liquefaction
The CO2 liquefaction plant that Bright Renewables will realize for one of the five projects, has a capacity of 1.5 tonnes of liquid CO2 per hour.
By extending the biogas upgrading unit with a CO2 liquefaction system the gaseous CO2 that is separated from biogas during the upgrading process is liquefied.
The in-house technology applies clean circular cooling with CO2 from its own process as the cooling agent eliminating the need for conventional refrigerants such as “freon” or ammonia in this process. The technology is a containerized solution for plug & play installation on-site with a quick start-up.
