Plant oils Vegetable oils as fuels

Fill her up! Which fuels are form renewable sources? Which fuels are not renewable? Oil Biodiesel Diesel Gas Petrol Alcohol Hydrogen

Cod and chips Possible to run a car on oil used to fry fish and chips Can mix vegetable oil and diesel in correct proportions

Biodiesel Name given to fuel made from vegetable oil Oil is treated to remove unwanted chemicals –Used on its own –Mixed with diesel refined from crude oil Other by-products: –Solid material = high energy cattle feed –Glycerine = used in soap

Benefits and advantages Very clean in terms of pollution –Very little sulphur dioxide Not harmful to animal and plant life If spilled, breaks down much faster than normal diesel

Benefits and advantages Biodiesel gives off carbon dioxide when burnt Biodiesel is grown Crops used absorb carbon dioxide as they grow C0 2 produced is absorbed by plants –Carbon neutral No greenhouse gases

What is biodiesel and what is it made from? Challenge question – Explain why biodiesel is a carbon neutral fuel

Use biodiesel!! Produce an A4 poster explaining: 1.What biodiesel is 2.How it is produced 3.Benefits and advantages of its use Make it as eye catching as possible Its going on the wall

Other bio-fuels Ethanol (alcohol) –Fermenting sugar from sugar cane –Used in Brazil a lot – added to normal petrol Gives off CO 2 when burnt –Absorbed by plants during photosynthesis Ethanol can also be made from ethene C 2 H 4 + H 2 0 C 2 H 5 OH

Why is ethanol from sugar cane a biofuel, but ethanol from ethene is not?