A novel and highly efficient approach for the production of biodiesel from high-acid content waste cooking oil

作者：Li, Daoming; Wang, Weifei; Faiza, Muniba; Yang, Bo; Wang, Yonghua^*

来源：Catalysis Communications, 2017, 102: 76-80.

DOI：10.1016/j.catcom.2017.07.024

• Biodiesel
• High-acid content waste cooking oil
• Partial glycerides selective lipase
• Esterification
• Transesterification
• Recyclability

A novel and highly efficient process for the production of biodiesel from high-acid content waste cooking oil (WCO) was developed. Free fatty acids (FFAs) and partial glycerides in WCO were first converted to FA methyl esters (FAME) by immobilized partial glycerides selective lipase SMG1-F278N-catalyzed esterification/transesterification, while leaving triacylglycerol (TAG) intact. FFAs decreased from 28.69% to 0.05% after 8 h of reaction under the applied optimal conditions and the immobilized SMG1-F278N showed excellent reusability up to 20 consecutive batches. Subsequently, the remaining TAG was transesterified to FAME by sodium hydroxide catalyzed transesterification and 98.24% FAME was obtained after 20 min of reaction.

• 出版日期2017-12
• 单位华南理工大学