Details

Autor(en) / Beteiligte

• Rajale, Trideep
• Yang, Xiaokun
• Judge, Elizabeth J.
• Moore, Cameron M.
• Martinez, Abraham
• Guo, Mond F.
• Ramasamy, Karthikeyan K.
• Elander, Richard
• Sutton, Andrew D.

Titel

Separation, recovery and upgrading of 2,3‐butanediol from fermentation broth

Ist Teil von

• Biofuels, bioproducts and biorefining, 2023-07, Vol.17 (4), p.1003-1011

Ort / Verlag

Chichester, UK: John Wiley & Sons, Ltd

Erscheinungsjahr

2023

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• 2,3‐Butanediol (BDO) is a bio‐derived building block available from biomass through biochemical methods in high titers (>120 g L−1) making it an attractive target for production and further upgrading to chemical products and fuels such as sustainable aviation fuel. A key challenge to enable the adoption of BDO as a precursor is the effective separation and isolation of this molecule from the fermentation broth. 2,3‐Butanediol has a boiling point higher than that of water (177°C), and as a consequence, separation via distillation methods is an energy‐intensive and therefore costly approach. We have improved the BDO separation through conversion to a 1,3‐dioxolane directly in fermentation broth via reaction with bio‐derived aldehydes catalyzed by a solid acid catalyst. The resulting dioxolane phase separates from the fermentation broth, allowing for easy decantation and isolation in >90% isolated yield. Isolated dioxolane can be used directly as a compression iginition fuel, trans‐acetalized to recover high‐purity BDO or used directly in a catalytic process as a BDO synthon to produce methyl ethyl ketone with aldehyde recovery in near quantitative yield.