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Biofuels, drawbacks of ethanol, drawbacks of biodiesel - Coggle Diagram
Biofuels
source of energy
biomass
material derived from living organisms
plants, vegetable oils, animal manure, algae, even cooking grease
good for the environment
2) carbon-neutral
remove carbon dioxide from the atmosphere
less carbon emission than fossil fuels
1) renewable
unlike fossil fuels
able to grow again and again
ethanol
(ethyl alcohol)
produced through fermentation
corn, sugar cane, etc.
mixed with gasoline
E10
can be used in vehicles
not as efficient as gasoline
not environmentally friendly
possible solutions
cellulosic ethanol
parts of crops
doesn't require lots of farmland
algae
produce hundreds of times more fuel
grow up to thirty times faster than ordinary crops
biodiesel
needs less energy to make
made of natural sources
vegetable oils or animal fats
good to use for trucks and heavy vehicles
less greenhouse gas emission than regular diesel fuel
requires a lot of farmland
turns to solid at low temperature
drawbacks of ethanol
drawbacks of biodiesel