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How to optimise the given method for producing and testing the ‘best’…
How to optimise the given method for producing and testing the ‘best’ biodiesel?
What are biodiesels
A biodiesel is a biofuel intended to replace diesel.
Difference between a biodiesel and regular diesel
Factors
Fatty Acids
Alcohols
Ethanol
Propanol or bigger alchohols
Least reactive
Higher energy storage
Methanol
More reactive
Catalyst
Strong Acid
HCl
HNO3
HSO4
HClO4
HI
HBr
Strong Base
Group 1 Hydroxide
KOH
NaOH
LiOH
Group 2 Hydroxide
Sr(OH)2
Ba(OH)2
Ca(OH)2
Group 2 Oxide
CaO
Group 1 Hydrides
Group 1 Methyls
Transesterification Steps
Glycerol backbone of triglycerides is broken by catalyst. This is done through a process known as hydrolosis and requires highly acidic or basic water as a catalyst. The acidic/alkali water breaks the bond between the glycerol and the fatty acids so the fatty acids can be used to make esters.
The alcohol bonds to the fatty acid chains and the glycerol forming esters and glycerin
How to test the Biodiesel
Cheapest to produce
Most sustainable
Safest to produce
HIghest efficiency
Cetane Number
Oxidative Stability
Cold Flow Properties
Density
Acid Value