THE GLYCEROL´S WAY. A BRIEF REVIEW OF OPPORTUNITIES
DOI:
https://doi.org/10.52292/j.laar.2019.338Keywords:
Glycerol, Biodiesel, Byproduct, Crude glycerol, Biofuel, SustainabilityAbstract
In this paper, the recent state of the art, for about the last 4 years, of glycerol revalorization is presented. The study is focused on the vast opportunities associated to glycerol transformation. The operating conditions related to catalytic or biological conversion of crude glycerol such as catalytic deactivation, use of solvents, reaction type, selectivity yields and production cost are also analyzed. It was found that crude glycerol is a promising sustainable source of commodities such as hydrogen, solketal, ethanol, methanol, acrolein, carbonate, epichlorohydrin, among others. Also, the main challenges related to glycerol revalorization such as catalytic stability, selectivity and conversion yields, as well as cost on catalyst regeneration and novel processes are identified.
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