Biobutanol has a number of significant advantages over ethanol:
- A higher energy density, which leads to 25% higher fuel economy (more miles per gallon).
- Can be blended into gasoline (petrol) at higher concentrations and used in existing vehicles and infrastructure.
- US regulations allow biobutanol to be blended at up to 16% by volume, versus 10% for ethanol.
- Can be blended directly at refineries and transported via existing fuel infrastructure.
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