How do you make biodiesel from vegetable oil?
Mix the methanol and sodium hydroxide until the sodium hydroxide has completely dissolved (about 2 minutes), then add 1 liter of vegetable oil to this mixture. Continue blending this mixture (on low speed) for 20 to 30 minutes. Pour the mixture into a widemouthed jar.
Which is more viscous biodiesel or vegetable oil?
➢ Biodiesel typically has a lower viscosity than vegetable oils at lower temperatures. At higher temps, the viscosities become close. The viscosity of biodiesel in the liquid phase typically changes less than that of vegetable oil as temperature increases.
What is biodiesel viscosity?
the kinematic viscosity of biodiesel at 313 K is in the range of 3.6 to 5.0 cSt, whereas it is 1.9 to 3.8 cSt for diesel [3]), lower energy content (biodiesel has a higher heating value (HHV) from 39.3 to 39.8 MJ/kg, whereas diesel has a HHV from 45.3 to 46.7 MJ/kg [3]), higher cloud point (262–289 K for biodiesel and …
How is biodiesel prepared?
Biodiesel is produced from vegetable oils, yellow grease, used cooking oils, or animal fats. The fuel is produced by transesterification—a process that converts fats and oils into biodiesel and glycerin (a coproduct). Glycerin, a co-product, is a sugar commonly used in the manufacture of pharmaceuticals and cosmetics.
Does biodiesel have a higher viscosity?
Biodiesel has a higher viscosity- does not flow as easily through fuel lines. Viscosity- the ease of flow of a fluid. At low temperatures biodiesel loses its ability to flow- it can even solidify.
How is biodiesel made from used cooking oil?
Biodiesel is produced from triglycerides in the presence of alcohol with catalyst through transesterification reaction. The biodiesel production from waste cooking oil with methanol in the presence of nano-sized calcium oxide nano-catalyst was done at a laboratory scale.
How is biodiesel made transesterification?
Base-catalyzed transesterification reacts lipids (fats and oils) with alcohol (typically methanol or ethanol) to produce biodiesel and an impure coproduct, glycerol. If the feedstock oil is used or has a high acid content, acid-catalyzed esterification can be used to react fatty acids with alcohol to produce biodiesel.