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Plant oils

Plant oils. Vegetable oils as fuels. Which fuels are form renewable sources? Which fuels are not renewable? Oil Biodiesel Diesel Gas. Petrol Alcohol Hydrogen. Fill her up!. Cod and chips. Possible to run a car on oil used to fry fish and chips

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Plant oils

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  1. Plant oils Vegetable oils as fuels

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

  3. 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

  4. 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

  5. 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

  6. Benefits and advantages • Biodiesel gives off carbon dioxide when burnt • Biodiesel is grown • Crops used absorb carbon dioxide as they grow • C02 produced is absorbed by plants • Carbon neutral • No greenhouse gases

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

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

  9. Other bio-fuels • Ethanol (alcohol) • Fermenting sugar from sugar cane • Used in Brazil a lot – added to normal petrol • Gives off CO2 when burnt • Absorbed by plants during photosynthesis • Ethanol can also be made from ethene C2H4 + H20  C2H5OH

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

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