25 Nov 2017

RECYCLED COFFEE GROUND ENERGY FOR LONDON’S BUSES.

A London-based company has partnered with Shell to turn the leftovers from cups of coffee into biofuel to help run the English capital's expansive bus network.
Bio-bean has been recycling coffee for a few years now, heating homes and buildings with what it calls Coffee Logs – burnable briquettes made of old grounds rather than wood.

Coffee-based biofuels have always been a goal too, and now, with the backing of Shell and the fuel blending company Argent Energy, Bio-bean is producing a biodiesel as well as the infrastructure to obtain the otherwise-wasted grounds from around London.

The companies call the fuel a "B20" blend, and it's made by first extracting oils from discarded coffee grounds. These are mixed with other fats and oils and then blended again with mineral diesel to create a fuel with a 20 percent biocomponent. When this biodiesel is fed into London's buses, it should reduce their carbon dioxide emissions by 10 to 15 percent. On top of that, Bio-bean says its facility can process some 50,000 tonnes of coffee grounds every year, which is about a quarter of London's annual coffee grounds waste.

This first stage of the project is set to produce 6,000 L (1,585 gallons) of coffee oil for use in selected London buses. In later stages the companies plan to produce a "pure-blend" that does away with the other fats and oils currently added to the mix.

 



This website uses cookies, one of the purposes of which is to calculate visitor statistics. More info Stop showing