In this procedure,4 the feed material is heated as it flows continuously
through a heating coil. Vapor formed travels along in the tube with the
remaining liquid until separation is permitted in a vapor separator or vaporizer. By conducting the operation at various outlet temperatures,
a curve of percent vaporized vs. temperature may be plotted. Also, this
distillation can be run at a pressure above atmospheric as well as under
vacuum. Equilibrium flash vaporization (EFV) curves are run chiefly on
crude oil or reduced crude samples being evaluated for vacuum column
feed.
through a heating coil. Vapor formed travels along in the tube with the
remaining liquid until separation is permitted in a vapor separator or vaporizer. By conducting the operation at various outlet temperatures,
a curve of percent vaporized vs. temperature may be plotted. Also, this
distillation can be run at a pressure above atmospheric as well as under
vacuum. Equilibrium flash vaporization (EFV) curves are run chiefly on
crude oil or reduced crude samples being evaluated for vacuum column
feed.
