PROGRESS IN FUEL QUALITY IMPROVEMENT IN VIETNAM
PROGRESS IN FUEL QUALITY IMPROVEMENT IN VIETNAM
PROGRESS IN FUEL QUALITY IMPROVEMENT IN VIETNAM
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Properties of gasoline<br />
influencing the environment<br />
No.<br />
4<br />
Properties and role<br />
Oxygenate compound:<br />
have high octane number,<br />
replace lead additive,<br />
aromatic. Allowable<br />
Maximum oxygen content<br />
is 2.7%<br />
MTBE: 10-15% Vol.<br />
Etanol: From 3-10% Vol.<br />
Influence<br />
MTBE: increase clean combustion<br />
ability, reduce emission NOx, CO,<br />
HC in exhaust gas of engine.<br />
When it leaks out to environment, it<br />
can cause ground water pollution<br />
( water have pungent even at very<br />
low MTBE content )<br />
Etanol: reduce emission CO, NO x<br />
in<br />
exhaust gas<br />
When blend much (more than<br />
10%Vol.) it can increase emission<br />
NO x<br />
, volatility.<br />
Etanol can increase corrosion in<br />
storage tank because of water<br />
absorption capacity<br />
9
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