Development of a CaO-Rich Catalyst from Three Waste-Shell Sources for Transesterification of Gliricidia sepium Seed Oil
Calcium-rich biological wastes offer potential low-cost precursors for heterogeneous catalysts used in biodiesel processing. This study prepared a CaO-rich catalyst from snail shell, eggshell and periwinkle shell wastes and applied it to the transesterification of Gliricidia sepium seed oil. Shell proportions were eval...