Distillation: What goes on in those refineries?

Big tankers tie up offshore and disgorge their contents into brightly lit and mostly inscrutable refineries.   This sixty year old film by Shell Oil neatly explains the chemistry, chemical engineering, and physics of distillation that takes gives us our gasoline, diesel, oils, and waxes. In a different setting, it also gives us many different kinds of beverages.

 

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