-Synthesis and Optimization Process of Ethylene Glycol-Based Biolubricant from Palm Kernel Oil (PKO)
Publish Year: 1398
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JREE-5-2_001
تاریخ نمایه سازی: 30 شهریور 1398
Abstract:
Internationally exploited lubricants are derived from coal and petroleum. Due to their high consumption and effects of their long-term pollution on the environment, it is imperative to use renewable and cheap feedstock for the synthesis of bio-based lubricants. This study presents the synthesis and optimization process of Ethylene Glycol (EG) based bio-lubricant from palm kernel oil. Palm Kernel Methyl Ester (PKME) was synthesized at a reaction time of 60 min, a molar ratio of oil: methanol 1:6, a temperature of 60 oC, and catalyst of 1 % wt/wt (in-situ transesterification) via reactive extraction. Box–Behnken design (BBD) in response surface methodology (RSM) was applied to this experimental layout. The effects of molar ratio, reaction time, and temperature on the synthesis of palm kernel biolubricant (PKBL) were evaluated. The PKBL structure was characterized by Fourier Transform Infra-Red (FT-IR) and Gas Chromatography-Mass Spectrophotometer (GC-MS) analysis, showing favorable lubricating properties. The PKME yielded 94.53 wt% based on the weight of the oil, while transesterification of the in situ derived PKME with EG yielded 93.08 wt% of the EG ester (Biolubricant). The maximum biolubricant recovery was 81.48 wt% obtained at a molar ratio of 3:1, time of 2.48 h, and temperature of 135 oC. The temperature and mole ratio were established to be the most significant terms. PKBL characteristics conformed to ISO VG criteria and had high potential for biolubricant feedstock.
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Authors
Mohammed Ibrahim Shaba
Department of Agricultural & Bioresources Engineering, Federal University of Technology Minna, Nigeria
Aliyu Mohammed
Department of Agricultural & Bioresources Engineering, Federal University of Technology Minna, Nigeria
Dauda Solomon Musa
Department of Agricultural & Bioresources Engineering, Federal University of Technology Minna, Nigeria
Balami Ayuba Audu
Department of Agricultural & Bioresources Engineering, Federal University of Technology Minna, Nigeria
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