Biodiesel production from transesterified yellow grease by ZSM-5 zeolite-supported BaO catalyst: process optimization by Taguchi’s experimental design approach
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引用次数: 0
Abstract
Methanolysis of yellow grease (YG) was performed to synthesize its corresponding methyl ester (YGME) using BaO loaded on ZSM-5 (BaO/ZSM-5) as a heterogeneous base catalyst that was prepared via metallic solution hydrolysis method and characterized using N2 adsorption–desorption (BET), surface basicity, XRD, TGA/DTA, SEM, FTIR and Raman techniques.### The Taguchi design approach was utilized to optimize the transesterification process factors, and among the parameters studied, calcination temperature was found to have a significant influence on YGME yield. At 70 ℃ for 3 h, a YGME yield of 95.9 \(\pm 0.94\)% was obtained using a methanol/YG molar ratio of 15:1 and 1 g (2 wt.% of YG used) of BaO/ZSM-5 sample calcined at 700 ℃. The BaO/ZSM-5 catalyst was reused six times with only a 15% decrease in activity.
以负载在ZSM-5上的BaO (BaO/ZSM-5)为载体，采用金属溶液水解法制备了非均相碱催化剂，对黄色油脂(YG)进行甲醇水解合成相应的甲酯(YGME)，并采用N2吸附-解吸(BET)、表面碱度、XRD、TGA/DTA、SEM、FTIR和拉曼等技术对其进行了表征。采用田口设计方法对酯交换工艺因素进行优化，发现焙烧温度对YGME产率有显著影响。在70℃下反应3 h, YGME产率为95.9 \(\pm 0.94\)% was obtained using a methanol/YG molar ratio of 15:1 and 1 g (2 wt.% of YG used) of BaO/ZSM-5 sample calcined at 700 ℃. The BaO/ZSM-5 catalyst was reused six times with only a 15% decrease in activity.
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