Faster burning fuels tend to have higher octane numbers as detonation takes time to happen. The faster you can complete combustion the better in regards to preventing detonation.
BTX are great octane boosters, however there use is no longer a thing in motor gas due to the EPA. All modern refineries have units that remove aromatics.
The facility I work at makes 88 octane gas from its crude unit, 90 from its FCC, 93 from its alky. It's all about blending quality with garbage so you can sell every drop of hydro carbon you refine.
And yes ethanol is all of the things you mentioned. Absolute crap. Incidentally it's also why gasoline is expensive in relation to crude at the moment. Thank Biden and RINS.
BTX are great octane boosters, however there use is no longer a thing in motor gas due to the EPA. All modern refineries have units that remove aromatics.
The facility I work at makes 88 octane gas from its crude unit, 90 from its FCC, 93 from its alky. It's all about blending quality with garbage so you can sell every drop of hydro carbon you refine.
And yes ethanol is all of the things you mentioned. Absolute crap. Incidentally it's also why gasoline is expensive in relation to crude at the moment. Thank Biden and RINS.