Open AccessOptimization of the Ring Opening of Epoxidized Palm Oil using D-Optimal Design
Author(s) -
Nurazira Mohd Nor,
Nadia Salih,
Jumat Salimon
Publication year - 2020
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2021.22938
Subject(s) - response surface methodology , chemistry , iodine value , yield (engineering) , palm oil , oleic acid , catalysis , reaction conditions , nuclear chemistry , chromatography , organic chemistry , biochemistry , food science , composite material , materials science
In the presence of a catalyst, p-toluenesulfonic acid (PTSA), the ring of epoxidized palm oil (EPO)was opened using oleic acid (OA). The optimization effects of different process variables includingthe mol ratio of EPO/OA, reaction temperature, PTSA percentage and reaction time was performed byresponse surface methodology (RSM). To assess the effects of process variables and interactions amongthem, a D-optimal design was used as an RSM tool to acquire the maximum response value. The followingare the optimum conditions achieved at the reaction time of 4.73 h in the RSM study: 1.02% PTSA, 3EPO/OA mol ratio and 119.14 ºC reaction temperature. These conditions resulted in 84% yield, 0.041%oxirane oxygen content (OOC), 59.4 mg/g iodine value (IV), and118.7 mg/g hydroxyl value (HV). Theresults are in a excellent agreement with the values predicted using a regression model.