Development and assessment of integrated bio-based value chains for Baden-Württemberg

The aim of the joint project "Development and evaluation of biobased value chains for Baden-Württemberg" was

• to develop a methodology for the design and evaluation of lignocellulose-based value chains and networks for Baden-Württemberg and
• to apply this to the example for the utilization of biomass from agriculture (e.g. miscanthus) to determine biobased value chains' economic and ecological potentials.

Based on the results of the techno-economic and ecological analysis, it should be possible to derive

• concrete recommendations for the implementation of biobased value chains in Baden-Württemberg.

The subproject results on techno-economic concept evaluation show that biotechnological processes via biomass pulping and fermentative synthesis of sugar fractions using fungi and bacteria are capable of economically producing biobased platform chemicals under certain conditions. Key recommendations from the integration of two downstream biotechnological processes after a pulping process of lignocellulosic biomass are: Create a fit between biomass type and quantity and process type (Input/Process Fit) and consider different technology readiness levels; perform a regional suitability assessment of biorefinery locations (Concept/Region Fit); match scale-up and numbering-up (Scale/Numbering Fit); meet product quality requirements (Process/Product Fit); and ensure an existing product market demand (Product/Market Fit). In summary, the individual components of biobased value chains must be aligned to promote the sustainable development of a bioeconomy. In addition to a techno-economic assessment, which can avoid bad investments and ensure profitability, an ecological assessment of biobased value chains is necessary (TEA/LCA Fit).