Biofuel creators champion whisky by-products over ethanol

A Scottish company has developed a commercial scale method of producing biofuel capable of fuelling cars from the unwanted residue of the whisky fermentation process. Edinburgh-based Celtic Renewables developed its process of producing biobutanol at industrial scale in Belgium and was recently awarded a £11m ($16.7m) grant by the British government to build a bespoke facility of its own in central Scotland. Nov 23, 2015