Journal article
Enzymatic-catalyzed esterification of free fatty acids to methyl esters
Department of Chemical and Biochemical Engineering, Technical University of Denmark1
Technical University of Denmark2
Novozymes A/S3
PROSYS - Process and Systems Engineering Centre, Department of Chemical and Biochemical Engineering, Technical University of Denmark4
KT Consortium, Department of Chemical and Biochemical Engineering, Technical University of Denmark5
Enzymatic transesterification of fatty acid oils to fatty acid methyl esters (FAME) is a wellestablished process involving an enzymatically catalyzed transesterification reaction step with yields greater than 97%. The unreacted residual consists primarily of free fatty acids (FFA), which contribute to the acid value (mg KOH/g biodiesel) and are typically 2–3 wt%.
Water is critical to the stability and activity of the enzyme employed in the transesterification reaction. Consequently, reducing the residual FFA further is not possible with the existing process.
Language: | English |
---|---|
Year: | 2021 |
Pages: | 12-15 |
ISSN: | 15289303 |
Types: | Journal article |
DOI: | 10.21748/inform.03.2021.12 |
ORCIDs: | Woodley, J. M. |