Chromium-tungsten heterogeneous catalyst for esterification of palm fatty acid distillate to fatty acid methyl ester

• 出版年: Journal of the Taiwan Institute of Chemical Engineers
• 第一著者: 2-s2.0-84939259215
• フォーマット: 論文
• 言語: English
• 出版事項: Taiwan Institute of Chemical Engineers 2015
• オンライン･アクセス: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84939259215&doi=10.1016%2fj.jtice.2015.03.020&partnerID=40&md5=7b35bd286b687defb3507d89e290853b

Chromium-tungsten mixed oxides heterogeneous catalysts were prepared and evaluated in the esterification of palm fatty acid distillate (PFAD) to produce fatty acid methyl ester (FAME). The reactions were conducted in a batch reactor at temperature range of 110-190 °C and catalysts were characterized by BET, SEM, TEM, FTIR and XRD. The effects of catalyst preparation conditions (metal ratio, calcination temperature and time), the influence of reaction conditions (temperature and time, methanol/PFAD molar ratio, catalyst dosage) and catalyst stability were studied. The prepared catalyst with formula CrWO2 (calcined at 600 °C for 3 h) gave the maximum FAME content of 86% at best reaction conditions (170 °C; 3 h, 2:1 methanol/PFAD molar ratio; 1.5 wt.% catalyst dosages) and can be recycled for several times. Thus, CrWO2 has good potentials as heterogeneous catalyst for FAME synthesis from high acid value oils. © 2015 Taiwan Institute of Chemical Engineers.