eprintid: 5780 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/00/57/80 datestamp: 2023-11-09 16:17:31 lastmod: 2023-11-09 16:17:31 status_changed: 2023-11-09 16:03:52 type: article metadata_visibility: show creators_name: Chuah, L.F. creators_name: Yusup, S. creators_name: Abd Aziz, A.R. creators_name: Bokhari, A. creators_name: Klemeš, J.J. creators_name: Abdullah, M.Z. title: Intensification of biodiesel synthesis from waste cooking oil (Palm Olein) in a Hydrodynamic Cavitation Reactor: Effect of operating parameters on methyl ester conversion ispublished: pub keywords: Biodiesel; Catalysts; Cavitation; Esterification; Esters; Fluid dynamics; Hydrodynamics; Methanol; Oils and fats; Synthetic fuels; Transesterification, Biodiesel synthesis; Hydrodynamic cavitations; Intensification; Operating parameters; Waste cooking oil, Palm oil note: cited By 103 abstract: This paper investigates a new route for intensification of methyl ester synthesis in Malaysia via alkali-catalysed transesterification of waste cooking oil derived from palm olein using a hydrodynamic cavitation reactor. The effects of the oil to methanol molar ratio (1:4-1:7), catalyst loading concentration (0.5-1.25wt) and reaction temperature (50-65°C) have been investigated using an optimised plate with 21 holes of 1mm diameter and an inlet pressure of 2bar in a 50L of hydrodynamic cavitation reactor assisted by a double diaphragm pump. Optimal conversion of 98.1 was achieved in 15min in a hydrodynamic cavitation reactor with 1:6 molar ratio of oil to methanol, 1wt of catalyst and 60°C of reaction temperature. It has been observed that a significant reduction in the optimum reaction time (about 6 fold) for transesterification from 90min for mechanical stirring approach to 15min for the hydrodynamic cavitation approach. Optimal yield efficiency of 12.50�10-4g/J was found using hydrodynamic cavitation and it was 8 fold higher than 1.5�10-4g/J when mechanical stirring was used. © 2015 Elsevier B.V. date: 2015 publisher: Elsevier official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84935501745&doi=10.1016%2fj.cep.2015.06.018&partnerID=40&md5=2b5d0cab4bd3bc07edbe0e543eca5029 id_number: 10.1016/j.cep.2015.06.018 full_text_status: none publication: Chemical Engineering and Processing: Process Intensification volume: 95 pagerange: 235-240 refereed: TRUE issn: 02552701 citation: Chuah, L.F. and Yusup, S. and Abd Aziz, A.R. and Bokhari, A. and Klemeš, J.J. and Abdullah, M.Z. (2015) Intensification of biodiesel synthesis from waste cooking oil (Palm Olein) in a Hydrodynamic Cavitation Reactor: Effect of operating parameters on methyl ester conversion. Chemical Engineering and Processing: Process Intensification, 95. pp. 235-240. ISSN 02552701