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I am profoundly grateful to everyone who contributed to the successful completion of this project. I am especially grateful to my Supervisor (Name), the Head of Department (Name), and the Lecturers in the Department of Environmental Science for their invaluable guidance and support. I also acknowledge the contributions of authors and scholars whose works on Comparative Characterization of Transesterified Biodiesels from Thevetia Nerifolia and Jatropha Curcas Seeds provided essential insights. Special thanks go to my study area (and any funding organizations, if applicable) for their financial assistance. I am equally thankful to stakeholders, including mentors, teachers, and colleagues, for their encouragement and support. Finally, I deeply appreciate my family and friends for their patience and unwavering support throughout this journey. Your contributions have been instrumental in making this research a reality.
Increasing scarcity of fossil resources, increasing demand for petroleum fuels as well as increasing detrimental effects of extracting and using fossil fuels suggests alternatives. Biodiesel is a renewable, environmentally friendly, socially acceptable, technologically feasible and economically viable alternative fuel for diesel engines.
This study investigates the comparative characterization of biodiesels produced by transesterification from Jatrpha curcas and Thevetia nerifolia seed oil using ratio 1:5, 1:6, and 1:7 of methanol and oil and base catalyst (NaOH), at temperature of 60oC.
The percentage oil and biodiesel yield and the physco-chemical properties (PH, specific gravity, viscosity and flash point) of the methyl ester biodiesels were determined. The values of the biodiesel properties obtained were compared with America (ASTM) and European (EN) biodiesel standard. The data was analyzed using Randomized Complete Block Design (RCBD).
The result of this study shows that reaction ratio 1:5 has the highest biodiesel yield of 91%, 82% and 70% from Jatropha, Thevetia and the mixture respectively. There is a significant difference in the biodiesel yield among the three oil sources. The flash point increases with increase in the specific gravity of the biodiesels. The highest and lowest viscosity value (mm2/s) of 6.44 and 1.2 was recorded for mixture (1:7) and Jatropha (1:7) respectively. The biodiesel with the highest and lowest viscosity value and the biodiesels from thevetia (1:6 and 1:7) do not meet the ASTM and EN specifications which ranges between 1.9-6.0 and 3.5-5.0 respectively. Others meet the ASTM Specification (Table 4 and 5). Finally, the result of this study shows that Jatropha curcas and Thevetia nerifolia are good potential sources of oil for biodiesel production
1.1 Introduction
… As a prelude to other parts of this study, this chapter will discuss the background upon which this study was initiated, the statement of problems that led to this study, the Aim and Objectives of the study. Others are Significance of the study, Scope of work, Research hypothesis and questions, Limitation of the study and Definition of technical terms.…