Malaysian Journal of Analytical Sciences Vol 19 No 1 (2015): 88 – 96

 

 

 

THE IMPROVEMENT OF SCREENING THE SIGNIFICANT FACTORS OF OIL BLENDS AS BIOLUBRICANT BASE STOCK

 

(Penambahbaikkan Saringan Faktor Bererti Bagi Campuran Minyak Sebagai Stok Asas Biopelincir)

 

Noor Hajarul Ashikin Shamsuddin¹, Rozaini Abdullah²*, Zainab Hamzah²,

Siti Jamilah Hanim Mohd Yusof¹

 

¹School of Bioprocess Engineering,

Universiti Malaysia Perlis, Kompleks Pengajian Jejawi Utara, 02600 Arau, Perlis, Malaysia

²Faculty of Engineering Technology,

Universiti Malaysia Perlis, Pusat Kejuruteraan, Kampus Pauh Putra, 02600 Arau, Perlis, Malaysia

 

*Corresponding author: rozainiabdullah@unimap.edu.my

 

 

Abstract

A new formulation biolubricant base stock was developed by blending of waste cooking oil (WCO) with Jatropha curcas oil (JCO). The objective of this research is to evaluate significant factors contributing to the production of oil blends for biolubricant application. The significant factors used in this study were oil ratio (WCO:JCO), agitation times (min) and agitation speed (rpm). The blended oil biobased lubricant was used to determine the saponification, acid, peroxide and iodine values. The experimental design used in this study was the 2 level-factorial design. In this experiment, it was found that the effect of oil ratio and interaction of oil ratio and agitation speed gave the most significant effect in oil blends as biolubricant base stock. The highest ratio of oil blend 80%:20% WCO:JCO, with low agitation speed of 300 rpm and low agitation time of 30 minutes gave the optimum results. The acid, saponification, peroxide and iodine values obtained were 0.517±0.08 mgKOH/g, 126.23±1.62 mg/g, 7.5±2.0 meq/kg and 50.42±2.85 mg/g respectively. A higher ratio of waste cooking oil blends was found to be favourable as biolubricant base stock.

 

Keyword: waste cooking oil, Jatropha curcas oil, oil blend, 2-Level Factorial Design

 

Abstrak

Formulasi baru  bagi stok asas biopelincir telah dibangunkan dengan campuran sisa minyak masak (WCO) dengan minyak Jatropha curcas (JCO). Objektif kajian ini adalah untuk menilai faktor-faktor penting yang menyumbang kepada pengeluaran minyak campuran untuk aplikasi biopelincir. Faktor-faktor penting yang digunakan dalam kajian ini ialah nisbah minyak (WCO: JCO), masa campuran (min) dan kelajuan percampuran (rpm).  Campuran minyak pelincir asas bio digunakan untuk menentukan nilai saponifikasi, asid, peroksida dan nilai iodin. Reka bentuk eksperimen yang digunakan dalam kajian ini adalah reka bentuk 2 peringkat faktorial. Dalam eksperimen ini, didapati bahawa kesan nisbah minyak dan interaksi nisbah minyak dan kelajuan percampuran memberi kesan ketara dalam campuran minyak sebagai stok asas biopelincir. Nisbah tertinggi campuran minyak 80%: 20% WCO: JCO, dengan kelajuan percampuran yang rendah 300 rpm dan masa yang rendah 30 minit memberikan hasil yang optimum. Nilai-nilai asid, saponifikasi, peroksida dan iodin yang diperolehi ialah 0.517±0.08 mgKOH/g, 126.23±1.62 mg/g, 7.5±2.0 meq/kg dan 50.42±2.85 mg/g. Nisbah yang lebih tinggi daripada campuran sisa minyak masak adalah lebih baik untuk dijadikan sebagai stok asas biopelincir.

 

Kata kunci: sisa minyak masak, Minyak Jatropha curcas, campuran minyak, Rekabentuk Faktorial 2 Peringkat

 

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