Oxygenated Glycerol Derivatives as an Alternative Source of Energy: A Review

Abstract

Due to the excessive production of crude glycerol by the Brazilian biodiesel industries, the commercial interest for glycerol derivatives has widely increased. Therefore, several methodologies have been proposed for such purpose, combining the reuse of this abundant raw material with new applications. In such context, this review summarizes a number of works focused on oxygenated glycerol derivatives production, regarding the reactions mechanisms (etherification, acetalization, esterification, and fermentation) and the physicochemical chemical properties and application. Thus, this work aims to contribute to future studies in chemical modification of crude glycerol; hence most of the scientific publications have discussed additives yielded from pure glycerol.

Effect of nitric acid modification of montmorillonite clay on synthesis of solketal from glycerol and acetone

“…Nowadays, great attention is focused on the environmentally friendly catalytic reactions in which wastes are converted into useful products. One of the trends is the comprehensive recycling of glycerol to compounds for new applications, because now glycerol is produced in large amounts as a by-product of biodiesel production, equivalent to approximately 10 wt% of the total biodiesel produced [1]. According to recent reviews [2,3], glycerol can be utilized for the synthesis of the biodiesel additives, for example solketal, which allows to improve the cold properties and lowering the viscosity of the biodiesel formulation.…”