In Britain, the buses will operate on an unusual fuel

In London it is an issue of air purity in the city centre due to the abundance of transport and compact planning air quality worse than the average in Europe.

Entrepreneur Arthur Kay has created a company that is going to produce biofuel for a London bus from recycled coffee.

The company Biobean collects coffee waste (cake) at a major London coffee houses like Costa Coffee and processing it into liquid fuel. Few weeks the company expects to demonstrate a prototype bus that will run exclusively on this fuel.

In London it is an issue of air purity in the city centre due to the abundance of transport and compact planning air quality worse than the average in Europe. “We are in a period when society moves away from dependence on fossil fuels and begin to use other species, and biofuel occupies an important place in this process,” says Arthur Kay. Biochemical method by which coffee is extracted press cake fuel, a patented, but uses an extraction process with hexane, in which the waste is subjected to evaporation. With this method retrieves 15-20% in mass of the contained waste oil, and the remainder turns into clumps, which can be burned in the stoves.

Shortage of raw materials, says Kay, in London is not expected. “In Britain annually consumes 500 thousand tons of coffee, and if we used all the leftovers we could heat a city like Manchester,” says the entrepreneur.

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