Process for the manufacture of butanol or acetone
AssigneeCeltic Renewables Limited
InventorsJane Samantha WHITE, Kenneth Alexander Leiper, Martin Tangney, Sandra Messenger
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Abstract
A process for the manufacture of butanol, acetone and other renewable chemicals utilizes one or more of by-products of the manufacture of malt whisky, such as pot ale and spent lees, biomass substrates, such as paper, sludge from paper manufacture and spent grains from distillers and brewers, and diluents, such as water and spent liquid from other fermentations. The process includes treating a substrate to hydrolyze it and fermenting the treated. Also provided is a biofuel including butanol manufactured according to the process.
Claims17
A process for the manufacture of butanol and/or acetone, the process comprising:
- treating a substrate comprising a carbohydrate source and pot ale to solubilise at least a portion of the carbohydrate source to provide a treated substrate;
- and
- fermenting the treated substrate in the presence of a culture of butanol- and/or acetone-forming micro-organisms at a concentration of free copper ions of less than 20 μ to provide a fermented product containing butanol and/or acetone.
Dependencies are inferred from the claim text.