Journal
FUEL PROCESSING TECHNOLOGY
Volume 238, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.fuproc.2022.107482
Keywords
Solketal; Acetalization; Sulfonation; Recyclability; Heterogeneous catalyst; Biodiesel
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Research on biomass-based catalyst is important for the sustainability of the biodiesel industry. In this study, a cellulose-based heterogeneous solid carbon catalyst was synthesized and successfully applied in the acetalization reaction of glycerol to produce the biofuel additive solketal. The catalyst exhibited excellent catalytic activity and stability.
Research on biomass-based catalyst is beneficial for the sustainability of biodiesel industry owing to its wide availability of feedstock, non-toxicity and biodegradability. Cellulose based heterogeneous solid carbon catalyst was prepared from cellulose by treating cellulose with concentrated sulphuric acid in innocuous hydrothermal conditions. It shows promising potential as a suitable catalyst for the synthesis of solketal (a biofuel additive) by acetalization of glycerol, the waste product of biodiesel production. 97.1 +/- 0.4% of solketal was produced under the optimum conditions of 1:5 M ratio of glycerol and acetone, catalyst loading of 7 wt% at 70 degrees C in 10 min. 90% of catalytic activity was retained even after five catalytic cycles making the catalyst highly efficient. With further investments; this method may be used for the preparation of biofuel additive in an industrial level.
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