Project
A Flexible, Multi-Feedstock, Multi-Product System
The BIOVAL concept is based on an integrated cascade/parallel biorefinery scheme, maximizing energy and mass efficiency to valorize waste streams into valuable products.
Feedstock strategy (Multi-Feedstock)
Carbon Sources
Industrial CO2 emissions, including the CO2 fraction from biogas.
Core technologies
- Dark co-Fermentation (DcoF)
- Microalgae Cultivation
- High-Pressure Gas Fermentation (HPF)
- Catalytic Hydrotreatment
Produces bio-H2 and SOCA (acetate-rich stream).
Uses SCCA and CO2 to yield Algal Oil (Heterotrophic) and Algal Oil + Pigments/Antioxidants (Mixotrophic).
Converts CO2 and H2 into Isopropanol (IPA) also allwoing biogas upgrading.
![](https://bioval.idener.ai/wp-content/uploads/2026/03/4.jpg")
An optimised catalytic hydrogenation converts Algal Oil into advanced Algal HVO.
![](https://bioval.idener.ai/wp-content/uploads/2026/03/5.png")
Circular economy focus
Zero Carbon Emissions
Zero Waste
All in-situ CO<sub>2</sub> is recycled for bioproduction HPF and microalgae.
Residual biomass is valorized through Anaerobic Digestion (AD) to produce biogas/CH<sub>4</sub>, and the digestate is transformed into Humus (fertilizer).
