Adsorption - Introduction to Carbon Capture and Sequestration - page 275

Section 7
Review

6.1. Reading self-test

1. Which of the following statements regarding adsorption is
correct?
a. Because adsorption uses a solid material and not a liquid,
adsorption can only be a batch process
b. The larger the working capacity of an adsorbent, the smaller
the adsorption column
c. Because we are working with a solid material, heat manage-
ment is simple.
d. There are many commercial examples of CO 2 separations by
adsorption

bp
bp

σ
σ

=

2. Which statement is correct for a Langmuir isotherm ?

1 +

0

a. b is equal to the Henry coeffi cient
b. The underlying model assumes independent adsorption sites
c. σ 0 gives the maximum loading
d. Answers A and B
e. Answers A, B and C
f. Answers B and C

3. Which statement for the parasitic energy for adsorption is
correct?
a. The parasitic energy estimates the increase in the price of
electricity
b. The parasitic energy weighs all energies required for carbon
capture and sequestration equally
c. The Carnot effi ciency tells us that the higher the temperature
of the steam, the more effi cient the separation
d. None of the above