Energy glossary
What is ETHYL TERTIARY BUTYL ETHER (ETBE)?
ETHYL TERTIARY BUTYL ETHER (ETBE) — an aliphatic ether similar to MTBE. This fuel oxygenate is manufactured by reacting isobutylene with ethanol. Having high octane and low volatility characteristics, ETBE can be added to gasoline up to a level of approximately 17 percent by volume. ETBE is used as an oxygenate in some reformulated gasolines.