Exam 15: Distillation Systems

List the critical steps used to start-up a distillation system. (DEXTER?)

List three process variables that can be used to break a flood:

Draw a distillation tower system. Include (3) three control loops, preheater, condenser, kettle reboiler, distillation column.

The condensed gas taken from a distillation tower is called:

Distillation is best defined by the following statement:

Overlap can be minimized by:

The temperature at which the heaviest component begins to boil:

The temperature at which a liquid mixture turns to vapor:

Condensed tower product that is pumped back into a tower to increase product purity and control temperature:

-Refer to Bottom VLE graphic above. On a VLE chart the bottom curve is referred to as:_________________ .

The sum of the products entering the column equals the sum leaving:

Heat that cannot be sensed or measured:

Packed towers use specially designed packing materials to reduce surface area during the distillation process:

Puking is most closely related to:

The varying temperatures across the tower:

The vapor medium suspended above a boiling mixture is enriched with the components that have the lowest boiling points.

Feed composition changes have very little impact on the energy balance but significant impact on the material balance.

Packed towers have the following types of packing:

The process of vaporizing liquids at lower temperatures by reducing pressure:

Excessive liquid flowing down a tower that blocks vapor flow up the tower: