Celtic Renewables moves forward with first car to run on whisky-based ethanol

In the UK, Celtic Renewables Ltd set the wheels in motion of the first car to be fueled by a whisky residue biofuel. Biobutanol is produced from draff – the sugar-rich kernels of barley which are soaked in water to facilitate the fermentation process necessary for whisky production – and pot ale, the copper-containing yeasty liquid that is left over following distillation.

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