Keywords and Phrases
Bio-Diesel; CO2 Co-Solvent; Kinetic Model; Sub-Critical Water; Super-Critical Fluids; Transesterification
“Energy has become an indispensable factor in preserving economic growth since the commencement of the industrial revolution. In recent years, biodiesel has gained acceptance as a notable alternative to the widely used petroleum-derived diesel fuel because it is biodegradable, non-toxic, and generates fewer exhaust pollutants. Recently, biodiesel studies have focused on the development of process intensification technologies to resolve some technical challenges facing biodiesel production, such as long residence times and catalyst sensitivity. These intensification technologies enhance process mass/heat transfer to achieve a continuous, scalable process that can be easily transported to utilize locally available feed stocks. Five phases have been followed to design and build a continuous, scalable process. In the first phase, the esterification and trans-esterification reactions of waste cooking oil (WCO) with high free fatty acids (FFA) were investigated. This investigation examined the potential benefits of combining the trans‐esterification method with microwave technology. In the second phase, an intensive study has been made to design and build a prototype laboratory-scale set up of non-catalyzed supercritical alcohol. A prototype reactor setup was designed and used for continuous biodiesel production in the temperature and pressure range of 240 - 400 °C and 70 - 400 bar, respectively. Third, CO2 was used as a co-solvent to make the supercritical process conditions milder. Fourth, a trace amount of the catalyst and the co-solvent have been used to increase the process yield. Fifth, the two-step sub/supercritical water and ethanol processes for non- catalytic biodiesel production were investigated. The process kinetics and thermodynamic parameters were also studied and calculated”--Abstract, page iv.
Smith, Joseph D.
Al-Dahhan, Muthanna H.
Ludlow, Douglas K.
Chemical and Biochemical Engineering
Ph. D. in Chemical Engineering
Missouri University of Science and Technology
Journal article titles appearing in thesis/dissertation
- Investigation of microwave assisted transesterification reactor of waste cooking oil
- Laboratory-scale research of non-catalyzed supercritical alcohol process for continuous biodiesel production
- Optimizing catalyst‐free biodiesel production with supercritical ethanol and CO₂ co-solvent using response surface methodology
- Using ethanol in continuous biodiesel production with trace catalyst and CO₂ co-solvent
- Two-step sub/supercritical water and ethanol processes for non-catalytic biodiesel production
xix, 214 pages
© 2020 Aso Abdulkareem Hassan, All rights reserved.
Dissertation - Open Access
Hassan, Aso A., "Comprehensive study of bio-diesel continuous flow synthesis" (2020). Doctoral Dissertations. 3037.