Purification technology for renewable production of fuel from methanolysis of waste sunflower oil in the presence of high silica zeolite beta

Green Chemistry Letters and Reviews

Alireza Abbaspourrad¹  Mojtaba Enayati¹  Leila Fereidooni² 

[1] Cornell University;Islamic Azad University;

关键词: trans-esterification;    waste sunflower oil;    fatty acids methyl esters;    high silica zeolite beta;   

DOI  :  10.1080/17518253.2020.1856426

来源: DOAJ

【 摘 要 】

Waste sunflower oil (WSO) can be easily produced as a reliable resource sustainable for multifunctional applications. WSO methanolysis in the presence of high silica zeolite beta (HSZB) treated with KOH as a catalyzer in a trans-esterification reaction was used for the fatty acid methyl ester (FAME) synthesis. Tetrahydrofuran (THF) as a co-solvent of 20 wt.% was added for mass transfer intensification. Conversion efficiency of 96.5% was obtained within 4 h reaction time of the reflux reaction, methanol:oil ratio of 9:1, 2 wt.% of catalyst and agitation speed of 300 rpm. Furthermore, these KOH treated HSZB catalysts still exhibit acceptable sustainability and appropriate catalysis in the trans-esterification after three consecutive cycling. It is concluded that K2O existing in the pores and the defect sites of the alkali-treated HSZB can be supplied to the surface of the catalysts structure during the trans-esterification in three consecutive rounds to result in 66.3% percentage of conversion.

【 授权许可】

Unknown