Until last winter, a total of 1,300 hours of biological methanation of syngas were successfully demonstrated in the methanation pilot at Cortus’s gasification plant in Höganäs. High methane content and a robust process have been shown, although so far only with relatively low syngas load. Unfortunately, syngas production has ceased since the partner Cortus went bankrupt. Planned further trials with higher syngas load and methanation with hydrogen addition have been canceled. Instead, future trials are planned with a focus on methanation with hydrogen addition at a biogas plant. The consortium has found a new location for the mobile methanation pilot and the newly completed mobile hydrogen system by RISE at an existing digestion plant in southern Sweden, and trials will hopefully begin soon.
Product gas quality for biogas produced via biological methanation of syngas in the pilot in Höganäs, autumn 2024. After a start-up period when the microorganisms established and grew in the bioreactors (August), complete and stable conversion of CO and H₂ could be demonstrated for about two months. The product gas achieved a methane content of 50% and less than 1% CO and H₂. At the end of September, the gas analysis instrument was calibrated, which explains the stepwise change in gas quality.
