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Thread: Spent Coffee Grounds - Source of Green Energy?

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    CoffeeSnobs Owner Andy's Avatar
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    Spent Coffee Grounds - Source of Green Energy?

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight

    Spent Coffee Grounds as a Versatile Source of Green Energy


    Narasimharao Kondamudi, Susanta K. Mohapatra and Mano Misra
    Chemical and Materials Engineering,
    University of Nevada,
    1664 North Virginia, MS 388, Reno, Nevada 89557

    J. Agric. Food Chem.,
    Publication Date (Web): November 24, 2008



    The production of energy from renewable and waste materials is an attractive alternative to the conventional agricultural feed stocks such as corn and soybean. This paper describes an approach to extract oil from spent coffee grounds and to further transesterify the processed oil to convert it into biodiesel. This process yields 10[ch8722]15% oil depending on the coffee species (Arabica or Robusta). The biodiesel derived from the coffee grounds (100% conversion of oil to biodiesel) was found to be stable for more than 1 month under ambient conditions. It is projected that 340 million gallons of biodiesel can be produced from the waste coffee grounds around the world. The coffee grounds after oil extraction are ideal materials for garden fertilizer, feedstock for ethanol, and as fuel pellets.

    from:
    http://pubs.acs.org/doi/abs/10.1021/jf802487s#cor1

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    Senior Member flynnaus's Avatar
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    Re: Spent Coffee Grounds - Source of Green Energy?

    Now thats interesting - wish I could read the full text. I hope that it is positive green (my term to indicate wthat there is a nett benefit to the environment)

    Do we establish the Bean Bay puck return service and sell it off to the bio-diesel makers with funds going to Faircrack?? ;D

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    Re: Spent Coffee Grounds - Source of Green Energy?

    Is there anything coffee cant do?!

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    Re: Spent Coffee Grounds - Source of Green Energy?

    Quote Originally Posted by YeeZa link=1227743025/0#2 date=1227747843
    Is there anything coffee cant do?!
    Yeah Dan - cant substantiate a monster chain like Charschmucks from folding ;)

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    Re: Spent Coffee Grounds - Source of Green Energy?

    Behmor Brazen - $249 - Free Freight
    Quote Originally Posted by GrindOnDemand link=1227743025/0#3 date=1227748327
    Quote Originally Posted by YeeZa link=1227743025/0#2 date=1227747843
    Is there anything coffee cant do?!
    Yeah Dan - cant substantiate a monster chain like Charschmucks from folding ;)
    touche ;D



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