Upgrading of biodiesel-derived glycerol in the biosynthesis of e poly L lysine an integrated biorefinery approach
Date
2011-03-28
Authors
Zhou, Nerve
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Abstract
Crude glycerol, a by product and major drawback of biodiesel, 10 percent by weight, once a valuable product is
now considered a waste associated with disposal costs because of salts and methanol impurities.
With an exponential increase of the biodiesel producers in South Africa and beyond, excess crude
glycerol of concern as its supply exceeds its demand,
creating excess glycerol of less value. Although purification is an option, South Africa does not
have purification plants and exporting such negatively-valued glycerol is not economically viable.
Innovative ways to dispose of crude glycerol are clearly necessary.