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Treatment of waste engine oil using optimized acid/clay refining method

Kamal Ariffin, Fathin Nadhirah and Ahmad Nor, Yusilawati and Sulaiman, Sarina and Jamal, Nur Ayuni Jamal (2019) Treatment of waste engine oil using optimized acid/clay refining method. Biological and Natural Resources Engineering Journal, 2 (2). pp. 37-48. ISSN 2637-0719

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Abstract

This paper addresses the treatment of waste engine oils(WEO)by acid/clay refining method using glacial acetic acid. An optimization of the process parameters in terms of settling time, stirring speed and mixing temperature for treating the WEO was performed using Response Surface Methodologyto improve the quality of treated lubricating oil.The quality of the treated WEO (Castrolbrand) was evaluated in termsof viscosity index and flash point value. The treated fuel qualityis found to have about 95% similarity to the fresh oil used as a standard at thesettling time of 24 hours, temperature of 50 °C and mixing speed of 150 rpm. Analysis of variances (ANOVA) showed that settling time plays the most significant parameters of the process followed by the mixing temperature. Solid contaminants which were collectedafterthetreatment wereanalyzed using SEM-EDS. Theycontained rough heteregenous shaped particles with elements such as carbon (97%), calcium (1.12%), zinc (0.74%), sulphur (0.73%) and phosphorus (0.29%). Then, four different brands of WEO (Liqui Moly, Castrol, Shell and Pennzoil) were treatedat the optimized conditionsto determine the feasibility of the method to treat any brandsof WEO. It can be concluded that the optimized treatement method is suitable to treat most of WEO.The findingsofthis study provide theinformation on thebest process condition for treating WEO as well as thesolid contaminants presentin it.

Item Type: Article (Journal)
Additional Information: 7793/79992
Uncontrolled Keywords: Waste engine oil, Glacial acetic acid, Acid/clay refining method, Viscosity and Flash Point
Subjects: T Technology > TD Environmental technology. Sanitary engineering
T Technology > TD Environmental technology. Sanitary engineering > TD895 Industrial sanitation. Industrial wastes
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering
Kulliyyah of Engineering > Department of Biotechnology Engineering
Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User: Dr Yusilawati Ahmad Nor
Date Deposited: 03 Apr 2020 17:56
Last Modified: 03 Apr 2020 17:56
URI: http://irep.iium.edu.my/id/eprint/79992

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