Sunday, March 8, 2009

Coffee Biofuel


Corn is the standard when we talk about making biofuel. Coffee works just as good and can also make your car smell like a coffeehouse. Apparently, any plant with an oily product will work too. According to experts, it takes about 5-7 kg of coffee grounds to get one liter of biofuel, which with a medium-sized production would yield a cost of about $1 per gallon.

Making fuel from the coffee grounds consists of the same procedure as other biodiesels, 'transesterification' which is sort of complicated to explain but really inexpensive. In the US we consume over 7 tons of coffee per year, which would make around 340 million gallons of biodiesel.

"Time, perhaps, to pour another cup before refilling the car."

Source: Economist.com

3 comments:

  1. yeah but how do you extract the oils from coffee in order to begin the transesterfication process? I have two diesel vehicles, one of them converted to run straight vegetable oil. I still think waste oil from restaurants are the best thing out there.

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  2. wow, i gave up coffee and i don't think i could take traffic smelling like a starbuck's. or maybe that would kill the cravings...

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  3. raw, trust me, it's still better than smelling that nasty black exhaust from an old mercedes or something! LOL

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