Transesterification of Jatropha Oil to Biodiesel by Using Catalyst Containing Ca(C_3H_7O_3)_2 as a Solid Base Catalyst

摘要

An direct precipitation method of Calcium glyceroxide Ca(C_3H_7O_3)_2 was proposed. The prepared Ca(C_3H_7O_3)_2 was effective in transesterification of Jatropha oil into fatty acid methyl esters (FAME). The Ca(C_3H_7O_3)_2 catalysts were characterized by using XRD, solid state ~(13)C-NMR, FTIR, and Hammett indicator. The influence of various reaction variables on the conversion was investigated. Under a condition of methanol/oil molar ratio of 9:1, a catalyst amount of 4 wt%, reaction time of 1.5 h, and reaction temperature of 65°C, over 95% of biodiesel yield was obtained.