527 Q3 Ch3 Absorption 1&2

Quiz
•
Other
•
University
•
Easy

Ahmed Abdelhafez
Used 2+ times
FREE Resource
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
In CC by absorption, the PRIMARY mechanism governing the capture of CO2 is
mass transfer
energy transfer
chemical reaction of CO2 with the solvent
dissociation of CO2 into CO + O
2.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Absorption and stripping equipment use
trayed columns only
packed columns only
spray towers only
bubble columns only
all of them
3.
MULTIPLE SELECT QUESTION
2 mins • 3 pts
The rate of mass transfer in an absorption process depends on
(check all that applies; no partial credit)
the length of mass-transfer zone
the solubility of CO2 in a given solvent
the diffusivity of CO2 through the solvent
the chemical reactivity between CO2 and the reactive component of the solvent
4.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Increasing the column height / number of stages increases the fraction of CO2 captured, while the diameter of the column is used to control the flows and pressure drop based upon the fluid properties.
True.
False.
The fraction of CO2 captured is NOT a function of the column height and diameter.
5.
MULTIPLE CHOICE QUESTION
3 mins • 3 pts
Put these steps of CO2 separation by absorption into the correct order:
(A) CO2 transfer into the liquid phase
(B) CO2 transfer through the gas phase
(C) CO2 transfer across the gas-liquid boundary
(D) Chemical reaction of CO2 with the binding agent in the liquid phase
(E) Diffusion of CO2 to a binding agent in the liquid phase
B then C then A then E then D
B then A then C then D then E
E then D then C then B then A
A then B then C then D then E
6.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
To increase the solubility of CO2, we should
increase temperature and decrease pressure
decrease temperature and increase pressure
increase both temperature and pressure
decrease both temperature and pressure
7.
OPEN ENDED QUESTION
3 mins • 1 pt
What is an ionic liquid?
Evaluate responses using AI:
OFF
8.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Ionic liquids have greater CO2 solubility than aqueous solutions.
True.
False.
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