Biofuels

HideShow resource information
View mindmap
  • Biofuels
    • Ethanol
      • Fermentation
      • Oil substitute from rape seed oil.
      • Biogas (methane) is used on a small scale to power generators
      • Bio-ethanol is an alcohol mixed with petrol
    • Any fuel from a biological origin
    • Can be as polluting as petroleum-based fuels due to the energy used in farming and processing the crops
    • Brazil leads the world production of ethanol
      • Makes 16 million litres per year from sugar cane
      • 60% of new cars can run on a fuel mix containing 80% ethanol
    • Reduce in biodiversity as forests are cleared for monocultures
      • Palm oil plantations in Asian countries
      • Food prices may go up as more land is used to grow crops for fuel
    • Technical problems limit production
      • Only specific parts of the plants can be used
      • The tough cellulose in the plant cell walls has to be pre-treated before fermentation
      • Hoped that second generation of bio fuels will process the cellulose found in many plants making wastage less and production more effiecient

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all Ecology, ecosystems and environmental biology resources »