A walkthrough of producing bioethanol from sugar using baker's yeast and a DIY reflux distillation column. Sugar converts to ethanol at roughly 54% efficiency, with the remainder becoming CO2. At current sugar and electricity prices in Florida, the cost works out to about $2.62/L ($9.91/gallon), making it economically marginal unless free feedstock is available. The piece also touches on azeotropic distillation challenges, engine conversion for 100% ethanol, and the potential value of bioethanol production skills in a resource-scarce future. Comments discuss vacuum distillation, solar thermal alternatives, US permitting requirements, and cellulosic feedstocks via supercritical water hydrolysis.
Nguồn: https://hackaday.com/2026/06/30/from-sugar-to-ethanol-fuel-with-a-little-microbial-help. 8sync News chỉ tóm tắt và dẫn link; bản quyền nội dung thuộc tác giả và nguồn gốc.