November 2021
Last week it was finally time to start up our newly built LBG plant for Fredrikstad municipality, which will supply the municipality's laundry with biogas, offer a refueling ramp for about 30 garbage trucks and a public dispenser for vehicle gas.
Although all consumers at this site use gaseous biogas, this station is not fed by mobile gas storage with compressed biogas but by liquid gas at minus 160 degrees which is then vaporized to the right pressure as needed in the plant.
Before we can fill the cryogenic tank with liquid biogas (methane gas), we cool down the entire system with liquid nitrogen gas for control and to avoid releasing methane gas. Afterwards it was time to empty the now cooled down tank of the harmless nitrogen gas before filling with ice cold biogas; something that made our automation engineer Jonas Thebrin Larsson long for lovely cold skiing days in the mountains when the fog suddenly hits...
Watch a movie when the station disappears into a fog cloud on our linkedin account.