Esterifikasi Dan Transesterifikasi Cpo Menjadi Biodiesel: Variasi Berat Katal…

Riau has abundant natural resources one of them was clay, especially clay from Maredan Village, Tualang District, Siak Regency, Riau Province. In this study, natural clay from Maredan village was modified by using H2SO4 solution at various concentrations (1, 2 and 3 M), then was followed by calcination at 500 oC for 3 hours. Activated clay was identified through XRD analysis and was used as a c…