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Table 3 Esterification of oleic acid under optimized conditions

From: Direct production of biodiesel from high-acid value Jatrophaoil with solid acid catalyst derived from lignin

Optimized experimental variables

    

Catalyst loading (based on weight of oleic acid)

Molar ratio oleic acid:methanol

Temperature

Reaction time

Oleic acid conversion rate

5%

1:12

80°C

5 h

96.1%