Open AccessEffectiveness of RSM based Central Composite Design for optimization of in-situ biodiesel production process from castor seeds
Author(s) -
Kartikkumar Thakkar,
S. S. Kachhawaha,
Pravin Kodgire,
M. Keshav
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1146/1/012008
Subject(s) - response surface methodology , biodiesel , potassium hydroxide , central composite design , methanol , transesterification , biodiesel production , yield (engineering) , catalysis , reagent , extraction (chemistry) , composite number , coefficient of determination , correlation coefficient , castor oil , chemistry , materials science , pulp and paper industry , chemical engineering , mathematics , chromatography , organic chemistry , composite material , engineering , statistics
In the present experimental study, biodiesel is made by reactive extraction (in-situ method) of castor seed. The hybrid (MW + US) apparatus was used to intensify in-situ process. Potassium Hydroxide (KOH) as catalyst and methanol as a reagent are used for the transesterification process. Response surface methodology has been applied to design the experiments. A central composite design (CCD) was adopted to examine the influence of various process parameters (MeOH:seeds ratio (v/w), catalyst loading, reaction temperature and, time) on the biodiesel yield. The optimum conditions for maximum biodiesel yield (93.2%) obtained for castor seed, are 7.47 methanol to oil ratio (v/w), 1.7% KOH catalyst loading, 317 K reaction temperature, and 1788 s reaction time. The regression equation obtained for the model having a coefficient of correlation (R 2 ), and adjusted coefficient of correlation (R 2 adj ) are 0.974 and 0.951 respectively shows the goodness of fit for the model.