The increase in biodiesel production has enhanced the availability of its co-product, glycerol. Many researchers are therefore devoted to individuate new uses for glycerol. In this paper, the evaluation of the use of a heterogeneous acid catalyst (amberlyst 15) in the production of glycerol tert -butyl ethers (GTBEs) as a diesel additive is performed. The best experimental synthesis conditions are reported together with the proposal of a new process essentially based on the extraction of GTBE with biodiesel.
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Serio et al. (2010) studied this question.
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