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Simultaneous extraction of rapeseed oil and conversion to biodiesel using heterogeneous and homogeneous catalysts
Author(s) -
Rahimi Alireza,
Moradi Gholamreza,
Abolhasan Alavi S.,
Ardjmand M.
Publication year - 2018
Publication title -
environmental progress and sustainable energy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.495
H-Index - 66
eISSN - 1944-7450
pISSN - 1944-7442
DOI - 10.1002/ep.12679
Subject(s) - rapeseed , biodiesel , methanol , yield (engineering) , hexane , extraction (chemistry) , solvent , soxhlet extractor , homogeneous , extractor , transesterification , chromatography , chemistry , materials science , catalysis , pulp and paper industry , organic chemistry , mathematics , metallurgy , process engineering , food science , combinatorics , engineering
In this study, first rapeseed oil was extracted by different ratio of Methanol/n‐Hexane mixture as solvent during 8 h in a Soxhlet extractor. During all experiments the other parameters such as amount of solvent (250 cc) and rapeseed (45 g), stirrer speed (750 rpm) and temperature (80°C) were kept constant. The maximum yield of oil (45.33%) was obtained by 50/50% (Methanol/n‐Hexane) volumetric ratio. Later, the extraction and trans‐esterification were carried out simultaneously employing each of the two selected alkali catalysts. The results showed that applying of 11% (wt%) CaO for 8 h, produced the ultra‐pure biodiesel of 99.92% having yield of 80.49% whereas using 2% KOH for 4 h, resulted 95.74% purity with the yield of 87.23%. © 2017 American Institute of Chemical Engineers Environ Prog, 37: 518–523, 2018
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