January 2014

Misc

Chemical-grade operation—or not?

The quality of transportation fuels has evolved. Earlier, the fuel quality was based on octane to power larger engines for automobiles and cetane for commercial trucks. As lead was phased out of gasol..

Romanow, Stephany, Hydrocarbon Processing Staff

The quality of transportation fuels has evolved. Earlier, the fuel quality was based on octane to power larger engines for automobiles and cetane for commercial trucks. As lead was phased out of gasoline, new compounds, such as oxygenates, were added to retain the power needed for gasoline engines. More recently, transportation fuels have undergone more changes to comply with mandated environmentally based air regulations. Among the targeted bad actors in gasoline and diesel is sulfur. Since the 1990s, governments worldwide have taken action to specify the composition of transportation fuels, with particular focus on sulfur content. Believe it or not, just 20 years ago, gasoline sold in t

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