Scotland is famous around the world for its production of whisky. Indeed, the $6.2 billion industry is one of the country’s key markets. But as is the case with the production of so many goods, there are by-products. What to do with the 1.6 billion liters of pot ale and 187,000 metric tons of draff generated by the industry annually? Scientists at Scotland’s Edinburgh Napier University think they have the answer, and it’s green: make biofuel.Earlier this week, the scientists filed for a patent on the creation of biobutanol, a new biofuel that is derived from the by-products of whisky distillation and can be used in ordinary vehicles. The fuel is claimed to be 30 percent more powerful than ethanol and does not require modifications to become biofuel ready. It is also easily made into other renewable biochemicals. Explains Martin Tangney, director of the university’s Biofuel Research Center and leader of the project, “The most likely form of distribution of the biofuel would be a blend of perhaps 5 percent or 10 percent of the biofuel with petrol or diesel, but 5 percent or 10 percent means less oil, which would make a big, big difference.” The European Union has projected that biofuels will account for 10 percent of its total fuel sales within the next decade.


