Bennamann Ltd

Our CAPCH4™ Biogas Upgrader unit is a retrofittable solution for AD plants which upgrades Biogas into fuel grade Biomethane.

With over 10 years of R&D investment, our unique patented technology has been designed to future-proof the profitability of farm operations in what is becoming a more uncertain world.

CAPCH4™ brings a host of benefits such as boosting farm revenue, extending asset life, and delivering fast, efficient Biomethane production for a smarter, greener energy future.

Our advanced Biogas upgrader uses the latest membrane separation technology delivering high-purity renewable Biomethane from biogas suitable for use in vehicle and off-grid power applications. The patented technology features integrated gas drying and compression up to 250 bar, enabling fast, forecourt-style refuelling ideal for a circular on farm solution for tractor and trucks or fuel retail operations. 

Designed for flexibility, it is also compatible with most standard anaerobic digestion (AD) permits, ensuring a quick path to installation and monetisation. Our modular CAPCH4™ system seamlessly integrates into existing AD plant infrastructure with free standing modular components.