Presentation on theme: "Rudolf Diesel’s original engine ran on peanut oil"— Presentation transcript:
1Rudolf Diesel’s original engine ran on peanut oil Rudolf Diesel’s original engine ran on peanut oil. He wanted diesel engines to utilize biomass.
2Biodiesel is cheaperthan petrodiesel inmany European gasstations where it’ssold.
3Sources of Oil for Biodiesel Grains (like corn)Nuts (like peanuts)BeansSeeds (like Jojoba)Algae
4The carbon in biodiesel comes from the air, and so its combustion provides no net addition of carbon dioxide.Fossil fuels come from under the ground, and so their combustion adds carbon dioxide to the atmosphere.
5Emissions Benefits Lower CO emission than petro-diesel Lower aromatic hydrocarbonsLower particulates
6Algae grown on sewage might be an economical source of biodiesel
7Emissions Disadvantages More particulates than gasoline.More nitrogen oxide emission than gasoline or petrodiesel.
8VW and some other makers of diesel cars claim that their engines can run on pure biodiesel.
9Since biofuels have higher melting points than petrodiesel, some biodiesel equipped cars allow the driver to switch to biofuel after engine heat has melted it.