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Published byCarlos Sanders Modified over 11 years ago
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Plant oils Vegetable oils as fuels
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Fill her up! Which fuels are form renewable sources? Which fuels are not renewable? Oil Biodiesel Diesel Gas Petrol Alcohol Hydrogen
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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
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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
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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
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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
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What is biodiesel and what is it made from? Challenge question – Explain why biodiesel is a carbon neutral fuel
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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
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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
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Why is ethanol from sugar cane a biofuel, but ethanol from ethene is not?
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