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Process Technology Equipment Chapter 16 Reactors
Page 17
B. Reaction rate decreases
C. Reaction rate does not change
D. Reaction does not occur
8. Which of the following can be used to increase activation energy in a chemical
reaction?
A. Addition of heat
B. Removing of a catalyst
C. Decreasing the pressure
D. Addition of oxygen
9. Which of the following is a variable in the rate of reaction?
A. Mixing
B. Temperature
C. Using a catalyst
D. All of the above
Answers:
Process Technology Equipment Chapter 16 Reactors
10. What auxiliary equipment provides a shell through which heating or cooling
media may pass?
A. Pressure controls
B. Reactor shell jacket
C. Static mixer elements
D. Internal heating and cooling coils
11. What auxiliary equipment increases mixing and turbulence?
A. Pressure controls
B. Reactor shell jacket
C. Static mixer elements
D. Internal heating and cooling coils
Process Technology Equipment Chapter 16 Reactors
Page 20
14. What happens when there is a loss of the mixing system?
A. Lower product quality
B. Product is sold at a loss
C. Product is sent to waste
D. All of the above
15. Which of the following is a solution for an off-spec product?
A. Stop all feed streams
B. Reduce pressure
C. Correct the agitation
D. Replace the catalyst
16. Which of the following is a solution for an abnormal temperature change?
A. Stop all feed streams
Process Technology Equipment Chapter 16 Reactors
B. Reduce pressure
C. Correct the agitation
D. Replace the catalyst
17. Which of the following is a personnel safety hazard associated with reactors?
A. Leaks
B. Burns
C. Hot equipment surfaces
D. Particulate matter released into air
18. Which of the following is an equipment hazard associated with reactors?
A. Spill of liquid catalyst
B. Rotating equipment hazards
C. Erosion of equipment
D. Inhalation hazard
Page 23
1. What type of reactions are always continuous reactions?
A. Tubular reactions
B. Fixed bed reactions
C. Stirred tank reactions
D. Fluidized bed reactions
2. Reactors provide the conditions necessary for controlled reactions to occur
efficiently and ________.
A. safely
B. effectively
C. correctly
D. simply
3. Which of the following may occur without adequate mixing?
A. Hot spots may occur
B. Product deterioration
Process Technology Equipment Chapter 16 Reactors
Page 24
C. A complete reaction may not occur
D. All of the above
4. What is one of the highest risks in the operation of reactors?
A. Runaway reaction
B. Loss of cooling system
C. Pressure variations
D. Loss of mixing system
5. Which of the following could be a result of regenerator cyclone failure?
A. Fire
B. Injury
C. Off-spec product
D. Economic impact
Answers:
Process Technology Equipment Chapter 16 Reactors
Page 25
Process Technology Equipment Chapter 16 Reactors
Page 26
APPENDIX, Chapter 16
Table of Contents
Contents
Page
Checking Your Knowledge Answer Key
27
Process Technology Equipment Chapter 16 Reactors
Checking Your Knowledge Answer Key
1. Define the following terms:
a. Catalysts
b. Endothermic
c. Exothermic
d. Inhibitors
e. Runaway reaction
2. ___________ are installed in a reactor to provide turbulence for proper
mixing.
3. What reactor type is also called an autoclave reactor?
a. Stirred tank reactor
b. Fixed bed reactor
c. Tubular reactor
d. Fluidized bed reactor
Process Technology Equipment Chapter 16 Reactors
4. What is one of the highest risks in the operation of reactors?
a. Leaks
b. Runaway reactions
c. Loss of cooling system
d. Loss of heating system
5. What type of reactors are widely used by chemical manufacturers to
produce materials like polyester and ammonia?
a. Stirred tank reactors
b. Fixed bed reactors
c. Tubular reactors
d. Fluidized bed reactors
Process Technology Equipment Chapter 16 Reactors
8. Cyclone separators are used in _______________reactors to separate
catalyst from gas streams.
a. tubular
b. fixed bed
c. fluidized bed
d. stirred tank
9. What system is designed to prevent overpressurization?
a. Mixing system
b. Vessel system
c. Relief system
d. Temperature control system
Process Technology Equipment Chapter 16 Reactors
10. List two ways that activation energy in a chemical reaction can be
accomplished.
11. What is the benefit of static mixer elements in tubular or in-line reactors?
a. They prevents corrosion.
b. They increase mixing and turbulence.
c. They prevent overpressurization.
d. They protect personnel and equipment.
12. (True/False) Reactor operation under normal conditions can be hazardous
due to the presence of high-pressure, high-temperature, and/or hazardous
materials.
