Introduction to Carbon Capture - Introduction to Carbon Capture and Sequestration - page 159

Section 4
Review
4.1 Reading self-test
1. What is the maximum theoretical (Carnot) effi ciency of a coal-
fi red power plant?
a. 70%
b. 60%
c. 40%
d. 20%
2. Why is NO x removed from the fl ue gas before SO x ?
a. The temperature for NO x removal is higher than for SO x
removal
b. NO x contaminates the SO x removal process
c. The temperature for NO x removal is lower than for SO x
removal
d. The order does not matter: in the alphabet N is before S
3. Which statement is correct about chemical looping?
a. The coal is looping between two reactors
b. It uses a solid to transport oxygen between the air and com-
bustion parts
c. Oxygen is separated from the air
d. Statements B and C
e. Statements A and C
4. Which statement is not correct about the IGCC process?
a. IGCC = integrated gasifi cation combined cycle
b. Coal is converted into syngas
c. Syngas is a mixture of CO 2 and H 2
d. The key separation in IGCC is CO 2 and H 2