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.
Lecture 1: Defining the term
Lecture 2: Temperatures and Pressures
Lecture 3: Multiple Effect Distillation
Lecture 4: A Working Example
Lecture 5: SAM – a special device
Lecture 6: Heating pipes
To earn your PTD101 credit try this fun quiz by clicking ‘Next’
Congratulations! You are a perfect graduate of PTD101!
Good effort! Try again while you remember the answers!
#1 Pass-through distillation is a short-hand way of saying
An evaporator connected to a gas absorption unit
A process enhanced by mechanical vapour re-compression
Any two step distillation process
#2 Liquids can be caused to boil at low temperatures through
Low absolute pressure
#3 PTD involves a multiple effect distillation train. The fluid fed to it is
The liquid feed to the process
Absorbent fluid from the gas absorber
#4 The front end evaporator in PTD gets its heat from
heat rejected by the absorber
electrical resistance heaters
#5 If a single effect distillation is replaced by PTD with a 3 effect desorber, energy savings should be on the order of
#6 An existing commercial device using a form of PTD is
a microwave oven
an absorption chiller
a coffee percolator
#7 The above device becomes a PTD still when changed from
a hot system to a cool one
a closed system to an open system
a low pressure system to a high pressure system
#8 A stripper/absorber module (SAM) simplifies a PTD apparatus by
the use of advanced fluid dynamics
combining evaporator and absorber in a single shell
using a modified condenser
#9 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?Draw yourself a sketch before answering!
the liquid outlet of the absorber compartment
the inlet of the evaporator compartment
the liquid inlet of the absorber compartment
#10 A SAM can be made elegantly simple in construction through the use of