| Title of Article |
Dual Frequency Ultrasound-Assisted Esterification of Palm Empty Fruit Bunch Oil with Zeolite Heterogeneous Acid Catalyst |
| Date of Acceptance |
16 October 2021 |
| Journal |
| Title of Journal |
Key Engineering Materials |
| Standard |
SCOPUS |
| Institute of Journal |
Universities and research institutions in Switzerland |
| ISBN/ISSN |
ISBN: 978-3-0357-2647-3 ISSN: 1662-9795 |
| Volume |
|
| Issue |
918 |
| Month |
Apill |
| Year of Publication |
2022 |
| Page |
109-116 |
| Abstract |
Biodiesel production from waste- or by-product oils having high free fatty acid (FFA)
contents is required oil pretreatment. Esterification has been used to reduce FFA contents of crude
oils prior to transesterification. In this present work, palm empty fruit bunch (EFB) oil which is a
by-product from the palm oil industry was used as feedstock for biodiesel production. The EFB oil
has very high FFA contents. Thus, esterification of the oil was carried out. The esterification was
enhanced by dual frequency ultrasound waves (28 kHz + 40 kHz). Zeolite was used as a
heterogenous acid catalyst. Methanol to oil (M:O) molar ratio, catalyst loading, and reaction were
main factors affecting on the process and were investigated using central composite design (CCD)
of experiment. Response surface methodology (RSM) was used to optimise these parameters. The
results showed that at the optimised condition of 12:1 M:O molar ratio, 11.36 %wt catalyst loading
and 60 min of reaction time, the FFA conversion was highest at 91.69% compared with the
predicted value of 93.56% which was only 1.99% difference between tested and predicted values. |
| Keyword |
Esterification, Zeolite catalyst, Ultrasonic, Dual frequency, Empty fruit bunch |
| Author |
|
| Reviewing Status |
มีผู้ประเมินอิสระ |
| Status |
ตีพิมพ์แล้ว |
| Level of Publication |
นานาชาติ |
| citation |
true |
| Part of thesis |
true |
| Attach file |
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| Citation |
0
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Journal Publication
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