The new CRONUS Practice Book brings together practical experience from five Functional Prototypes operating across Europe. Each explores a different pathway, from using carbonic anhydrase enzymes to grow microalgae, to converting CO₂ into biomethane and storing carbon in biochar.

Inside, you’ll find concise technical briefs covering each prototype’s process, technologies, operational targets, research questions and performance indicators. Together, they show how carbon capture and utilisation can be integrated into existing bioenergy value chains, and share field-tested insights for researchers, plant operators, industry, policymakers and technology developers.