SYNTHESIS AND CHARACTERIZATION OF BIODIESEL FUELS FROM FURFURYL ALCOHOL AND SPENT COFFEE GROUNDS

<p><strong>ABSTRACT</strong></p> <p>Biodiesel can be synthesized using several different triacylglycerides, alcohols, and catalysts. In this study, fatty acid methyl esters (FAMEs) and fatty acid ethyl esters (FAEEs) were produced from their respective alcohols and coffee oil, using either a basic (K₂CO₃) catalyst or an acidic catalyst (H₂SO₄). Fatty acid furfuryl esters (FAFurEs) were produced using commercially-purchased cooking oils (canola, olive, corn, sunflower, and peanut) with furfuryl alcohol, a basic (K₂CO₃) catalyst, a co-solvent (THF), and an ionic liquid (1-butyl-3-methylimidazolium tetrafluoroborate). All samples were produced using either conventional heating methods (CH) or microwave-assisted heating methods (MW). All biodiesel samples were characterized using ¹H-NMR. FaFurE samples also underwent bomb calorimetry studies. Acid catalysis was unsuccessful at producing either FAMEs or FAEEs from coffee oil. Base catalysis, however, was successful. FAMEs were produced in 73% conversion and FAEEs were produced in 81% conversion under base-catalyzed conditions. FAFurEs were produced on varying amounts ranging from 19% for sunflower oil to 75.7% for olive oil. Microwave heating was unsuccessful at producing FAFurEs, whereas conventional heating did yield FAFurE products.</p>

Name thesis:degree_name

Master of Science in Natural Science

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

College of Science and Mathematics

Year dc:date.available

2018

Author dc:creator

• Raley, Amanda

Contributors dc:contributor

• Dr. Russell Franks
• Dr. Alyx Frantzen
• Dr. Matibur Zamadar

• biodiesel
• furfuryl
• coffee
• transesterification
• Environmental Chemistry
• Organic Chemistry

Repository record dc:identifier

https://scholarworks.sfasu.edu/etds/181

OAI identifier oai:identifier

oai:scholarworks.sfasu.edu:etds-1195