Anaerobic digestion: Bio-energy for our future - Renewable Energy ...

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For comparison,ethanol yieldFeedstockEthanol yieldrange (L/dry kg)<strong>Energy</strong> yield range(MJ/dry kg) aRef.Difference withAD <strong>energy</strong>yield (%)Corn grain 0.37-0.47 8.6-11 1, 2, 3 –20 to –28Switchgrass 0.37-0.4 8.6-9.3 2, 3Potato 0.23 5.4 419 to –40–61CH 46%19% 35%4%4%6% 26%EtOHa using a calorific value of 23.34 MJ/L EtOHReferences(1) Patzek T. Critical Rev in Plant Sci 23(6):519-567 (2004)(2) Seungdo K and al. ISAF XV Int Symposia of AlcoholFuels, San-Diego, CA (2005)(3) Pimentel D & Patzek T. Natural Res Research,14(1): 65-76 (2005)(4) Klijnsma X. Sustainable Mobility Conf, Leeuwarden,Netherlands (2006)GTM07 - 12/14