Welcome to “Pass-through Distillation 101″, a half-hour course comprising six videos that explain the basics of the topic.
View each lecture in sequence by clicking on it; that will invoke a short YouTube video.
TO EARN YOUR PTD 101 CREDITS TAKE THE EXAM BELOW
Pass-through distillation is a short-hand way of saying
a) A process enhanced by mechanical vapour re-compression
b) An evaporator connected to a gas absorption unit
c) Any two step distillation process
Liquids can be caused to boil at low temperatures through
a) The Hall Effect
b) Exergy destruction
c) Low absolute pressure
PTD involves a multiple effect distillation train. The fluid fed to it is
a) Absorbent fluid from the gas absorber
b) The liquid feed to the process
c) cooling water
The front end evaporator in PTD gets its heat from
a) plant steam
b) heat rejected by the absorber
c) electrical resistance heaters
If a single effect distillation is replaced by PTD with a 3 effect desorber, energy savings should be on the order of
An existing commercial device using a form of PTD is
a) a microwave oven
b) an absorption chiller
c) a coffee percolator
The above device becomes a PTD still when changed from
a) a closed system to an open system
b) a hot system to a cool one
c) a low pressure system to a high pressure system
A stripper/absorber module (SAM) simplifies a PTD apparatus by
a) using a modified condenser
b) combining evaporator and absorber in a single shell
c) the use of advanced fluid dynamics
Question 9: Warning! Draw yourself a sketch before answering!
PTD requires a vacuum pump to carry away gases that that were originally dissolved in the process feed.
The inlet of the vacuum pump connects to a port near
a) the inlet of the evaporator compartment
b) the liquid inlet of the absorber compartment
c) the liquid outlet of the absorber compartment
A SAM can be made elegantly simple in construction through the use of
a) Copper tubing
b) heat pipes
c) teflon spacers
Send me your answers as a 10 character string of the format “abcabcabca” and I will send you a certificate
if you get a score of 7 or higher!
Congratulations to Kaustubh Laturkar for scoring 100% on the exam!