The research demonstrates enhanced glycerol conversion in solketal synthesis using hydrodynamic cavitation, suggesting a novel approach for intensification.
The possibility of using hydrodynamic cavitation to intensify solketal synthesis from glycerol and acetone in the presence of a zeolite has been shown for the first time. The reaction in the presence of faujasite zeolite (FAU, SiO2/Al2O3 = 14.9) has been studied. It has been found that the use of hydrodynamic cavitation contributes to an increase in glycerol conversion from 35.2 to 66.8% within 30 min of reaction without changing the solketal selectivity at an acetone/glycerol molar ratio of 2.5, a catalyst loading of 1.6 wt % (per loaded glycerol weight), and 25°C. The results show that the cavitation mode can be thought of as a promising method for intensifying glycerol ketal and acetal synthesis reactions.
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Kovalenko et al. (2026) studied this question.
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