Competitiveness of biofuels lies in part in the value added by the main secondary product: glycerol. Research has been carried out to find new applications for glycerol in the fields of polymers, surfactants, and intermediates. These potential outlets are examined from a technical and an economical point of view. The economical one is the most important, eliminating applications that are technically worthwhile; corn gluten feed displacement for instance. The remaining potential outlets, like polyglycerols, could develop intensively in the near future. However, the markets concerned for most applications would be niches.
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Sylvain Claude (1999) studied this question.
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