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To optimise the given method for producing and testing for the best…
To optimise the given method for producing and testing for the best biodiesel.
What is the best biodiesel?
What is a biodiesel?
Biodiesels are methylated fatty acids
What are triglycerides?
How are methylated fatty acids made?
Methylated fatty acids are produced from the transesterification of triglycerides using alcohols.
What are triglycerides?
Triglycerides are molecules made up of a glycerol molecule and three fatty acids.
What determines what the best biodiesel is?
Fastest rate of production?
Energy produced/energy density
density is per kilogram while enthalpy is per mole
Reactivity
Cost to use?
Burn time?
Most ecofriendly?
Least emmisions?
How high of a concentration of the biodiesel can be used on traditional diesel engines?
Can it be used as a pure B100 biodiesel or does it have to be diluted with petrodiesel such as a B20 blend to be used?
B20 means a fuel that is 20% biodiesel with the rest of the blend being traditional petrodiesel.
Cetane rating
How can production of this biodiesel be optimised?
Expense to make the biodiesel?
Purity of biodiesel?
To maximise the purity of the biodiesel produced, the fatty acid methyl ester molecules need to be isolated from the other substances involved in the transesterification process. This includes glycerol, produced as a by-product of breaking down triglycerides, the potassium hydroxide catalyst and any unreacted methanol or triglycerides.
Fastest rate of production?
Use of catalyst and high heat
ELABORATE ON WHAT THEY DO AND WHAT CONDITIONS EXACTLY TO USE.
WILL USING HIGH HEAT DECREASE THE YIELD OF THE REACTION?
IS THE TRANSESTERIFICATION REACTION EXOTHERMIC OR ENDOTHERMIC?
Most ecofriendly?
Least emmisions?
Yield?
Since the transesterification of triglycerides is an equilibrium reaction, the yield of the reaction can be changed. To increase the yield of this reaction, the concentration of the reacting particles should be increased to shift the equilibrium to the right to produce more fatty acid methyl esters (FAME) biodiesel molecules.
Due to the immiscibility of oil in water, the yield of biodiesel might be lowered. This can be counteracted by the use of a base or acid catalyst, such as POH or NaOH.
How can this be tested?
How can production be tested?
Yield?
Concentration of biodiesel made?
Rate?
Litres per hour?
How can the biodiesel be tested?
energy produced?
Kilojoules per mole
Potential designs:
testing yield of biodiesel from production using different conditions
Testing burning rate of a litre of biodiesel
Testing enthalpy of a litre of biodiesel