why is mtbe used as a gasoline additive
Methyl tert-butyl ether In the US it has been used in gasoline at low levels since 1979, replacing tetraethyl lead as an antiknock (octane rating) additive to prevent engine knocking. Oxygenates also help gasoline burn more completely, reducing tailpipe emissions and dilute or displace gasoline components such as aromatics (e.g., benzene). Before the introduction of other oxygenates and octane enhancers, refiners chose MTBE for its blending characteristics and low cost.
Petroleum industry in Nigeria Nigeria’s oil revenue has totaled $340 billion in exports since the 1970s and it is the fifth largest producer.[24] Though Nigeria is a major oil exporter, it imports most of its gasoline, and when fuel subsidies were lifted in January 2012, fuel increased from roughly $1.70 per gallon to $3.50.[25] Nigeria produces a form of oil ideal for the United States, has huge reserves, and has increased its production to 2.8 million barrels (450,000 m3) of oil a day.[26] But this, some say, is all a resource curse that is hurting Nigeria and disadvantaging her people.[27]