Optimisation on pretreatment of rubber seed (Hevea brasiliensis) oil via esterification reaction in a hydrodynamic cavitation reactor

Bokhari, A. and Chuah, L.F. and Yusup, S. and Klemeš, J.J. and Kamil, R.N.M. (2016) Optimisation on pretreatment of rubber seed (Hevea brasiliensis) oil via esterification reaction in a hydrodynamic cavitation reactor. Bioresource Technology, 199. pp. 414-422. ISSN 09608524

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Abstract

Pretreatment of the high free fatty acid rubber seed oil (RSO) via esterification reaction has been investigated by using a pilot scale hydrodynamic cavitation (HC) reactor. Four newly designed orifice plate geometries are studied. Cavities are induced by assisted double diaphragm pump in the range of 1-3.5 bar inlet pressure. An optimised plate with 21 holes of 1 mm diameter and inlet pressure of 3 bar resulted in RSO acid value reduction from 72.36 to 2.64 mg KOH/g within 30 min of reaction time. Reaction parameters have been optimised by using response surface methodology and found as methanol to oil ratio of 6:1, catalyst concentration of 8 wt, reaction time of 30 min and reaction temperature of 55 °C. The reaction time and esterified efficiency of HC was three fold shorter and four fold higher than mechanical stirring. This makes the HC process more environmental friendly. © 2015 Elsevier Ltd.

Item Type: Article
Additional Information: cited By 84
Uncontrolled Keywords: Esterification; Esters; Fatty acids; Fluid dynamics; Hydrodynamics; Oils and fats; Rubber, Hydrodynamic cavitations; Optimisations; Pre-Treatment; Process intensification; Rubber seed oil, Cavitation, fatty acid; methanol; biofuel; vegetable oil, biomechanics; biotechnology; catalyst; concentration (composition); dicotyledon; ester; hydrodynamics; optimization; parameterization; seed; vegetable oil, Article; controlled study; esterification; Hevea brasiliensis; hydrodynamic cavitation reactor; hydrodynamics; priority journal; reaction time; reactor; response surface method; temperature; biotechnology; catalysis; chemistry; devices; equipment design; esterification; Hevea; plant seed; pressure; procedures, Hevea brasiliensis, Biofuels; Biotechnology; Catalysis; Equipment Design; Esterification; Fatty Acids, Nonesterified; Hevea; Hydrodynamics; Methanol; Plant Oils; Pressure; Seeds; Temperature
Depositing User: Mr Ahmad Suhairi UTP
Date Deposited: 09 Nov 2023 16:19
Last Modified: 09 Nov 2023 16:19
URI: https://khub.utp.edu.my/scholars/id/eprint/7989

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