Synthesis of high oleic palm oil-based trimethylolpropane esters in a vacuum operated pulsed loop reactor

FUEL

卷:166

Article

Abd Hamid, Hamidah¹  Yunus, Robiah²  Rashid, Umer¹  Choong, Thomas S. Y.²  Ali, Salmiaton²  Syam, Azhari Muhammad³ 

[1] Univ Putra Malaysia, Inst Adv Technol, Upm Serdang 43400, Selangor, Malaysia

[2] Univ Putra Malaysia, Dept Chem & Environm Engn, Fac Engn, Upm Serdang 43400, Selangor, Malaysia

[3] Univ Malikussaleh, Dept Chem Engn, Lhokseumawe 24351, Indonesia

关键词: Biolubricant;    Trimethylolpropane ester;    Pulsed loop reactor;    Methyl ester;   

DOI  :  10.1016/j.fuel.2015.11.022

来源: Elsevier

【 摘 要 】

The experimental studies have shown that a pulsed loop reactor can be used to successfully reduce the reaction time for the transesterification of oils and fats. In the present study, the transesterification of palm methyl ester (PME) and trimethylolpropane (TMP) to produce palm oil based TMP ester was conducted using the vacuum operated pulsed loop reactor. The reaction was catalyzed with sodium methoxide solution in methanol. The influences of five operating variables such as vacuum pressure, catalyst loading, molar ratio of high oleic PME to TMP, reaction temperature and oscillatory speed on the yield of TMP esters and unwanted fatty soap formation were examined. The optimum conditions for the reaction were found at 120 degrees C, 20 mbar, 3.9:1 M ratio of PME:TMP, 1.0 wt% catalyst solution and 180 rpm oscillatory speed. The product containing 95 wt% TMP triester was successfully synthesized in 1 h with 167 mg/g of fatty soap. The physicochemical properties of the TMP esters obtained using pulse reactor were comparable to characteristics of high oleic TMP esters. (C) 2015 Published by Elsevier Ltd.

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