Bioethanol fuel is primarily produced through the sugar fermentation process, but it can also be produced chemically by reacting ethylene with steam. The majority of the sugar used to make ethanol comes from fuel or energy crops. These crops include corn, maize, and wheat crops, waste straw, willow and trees, sawdust, reed canary grass, cord grasses, Jerusalem artichoke, miscanthus, and sorghum plants. Another disadvantage of bioethanol is that it can degrade certain elastomers and corrode certain metals inside the vehicle, necessitating constant replacement. Bioethanol Market is difficult to vaporise at low temperatures when used in pure form (E100 blend), making E100-equipped vehicles more difficult to start in cold weather. As a result, bioethanol is typically blended with a small amount of gasoline to improve ignition, and E85 blends are a popular alternative. Low percentage bioethanol blends (up to E10) can already be used in most conventional gasoline engines without modification and can even slightly improve performance.
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