Abstract
Biodiesel produced from waste cooking oils (WCOs) mixed with methanol was efficiently transesterified using a continuous fluid flow system with a focused microwave heating device. Strontium oxide (SrO) was added as the catalyst. The factors that most influence the biodiesel conversion rate were first estimated by considering the effects of oil-to-methanol ratio, added quantity of SrO, and microwave heating power on reaction time in a built-in batch unit. The optimal parameter values were then applied to a continuous fluid flow system, which simulates the conversion of a scaled-up quantity of WCOs into biodiesel. Under the optimum fluid flow velocity and an appropriate output temperature, a biodiesel conversion rate of ca. 93 % was reached, associated with the decomposition of ester bonds and the formation of a tetrahedral intermediate substance during the reaction.
| Original language | English |
|---|---|
| Pages (from-to) | 192-198 |
| Number of pages | 7 |
| Journal | Chemical Engineering and Technology |
| Volume | 41 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 2018 |
Bibliographical note
Publisher Copyright:© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Funding
This research received funding from the Headquarter of University Advancement at the National Cheng Kung University (NCKU), which is sponsored by the Taiwan Ministry of Education under the grant numbers D105-33B01 and D106-33B02.
| Funders | Funder number |
|---|---|
| Ministry of Education | D105-33B01, D106-33B02 |
| National Cheng Kung University |
Keywords
- Biodiesel
- Microwave heating
- Strontium oxide
- Transesterification
- Waste cooking oils