978-0134891262 Chapter 17 Part 2

subject Type Homework Help
subject Pages 11
subject Words 4585
subject Authors NAPTA

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Process Technology Equipment
Chapter 17 Filters and Dryers
17.5.2 Lockout/Tagout
Time: 2 minutes
Resources: Slide 35
Sample Instructor Script:
Lockout/tagout procedures help ensure that the equipment is in a zero-energy state
17.5.3 Start-up, Commissioning, and Housekeeping
Time: 1 minute
Resources: Slide 36
Sample Instructor Script:
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Process Technology Equipment
Chapter 17 Filters and Dryers
Page 19
17.5.4 Sampling
Time: 2 minutes
Resources: Slide 37
Sample Instructor Script:
Process technicians are responsible for keeping a processing facility operating safely
and efficiently. Process technicians also routinely sample and test process fluids and
solids at various stages of the production process. These tasks are necessary to help
Summary and Wrap-Up
Time: 4 minutes
Resources: Slide 38
Suggested Student Activities
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Process Technology Equipment
Chapter 17 Filters and Dryers
End of Chapter Review Questions
(Note to Instructor: If you have time, you can use these questions to test your
students’ knowledge of the content presented in this chapter.)
1. Which of the following factors should be considered when selecting the
appropriate filter?
A. Cost
B. Number and size of particles being filtered
C. Compatibility of the feed stream with the filter
D. All of the above
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Process Technology Equipment
Chapter 17 Filters and Dryers
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2. In what type of filter does the feed enter at the top of the filter, cascade down
though a filtering medium, and exit at the bottom of the filter?
A. Gravity
B. Vacuum
C. Suction
D. Mechanical
3. What percent of particles can be removed with an absolute rating on a filter?
D. 99.9 percent
4. Which of the following is a common example of a pleated cartridge filter?
A. Fish tank filter
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Process Technology Equipment
Chapter 17 Filters and Dryers
Page 22
B. Vacuum filter
C. Swimming pool pump filter
D. Automatic swimming pool cleaner filter
5. What type of filter contains a cloth screen to retain the solids being filtered?
A. Leaf filter
B. Rotary drum filter
C. Fixed bed filter
D. Plate-and-frame filters
6. What type of filter is used to remove liquids from a slurry feed by using a deep
filtration process including clarification and prefiltration?
A. Leaf filter
B. Rotary drum filter
C. Fixed bed filter
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Process Technology Equipment
Chapter 17 Filters and Dryers
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D. Plate-and-frame filters
7. What type of dryers force hot gas through a vertical or horizontal flash tube,
causing the moist solids to become suspended?
A. Flash dryers
B. Fluid bed dryers
C. Fixed bed dryers
D. Rotary dryers
8. What type of dryers use hot gases passed upward through wet solids at a
velocity high enough to lift the solids and cause them to act like a fluid?
A. Flash dryers
B. Fluid bed dryers
C. Fixed bed dryers
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Process Technology Equipment
Chapter 17 Filters and Dryers
D. Rotary dryers
9. What can cause breakthrough in a filter system?
A. Insufficient heat
B. Loss of filter aid
C. Loss of airflow
D. All of the above
10. What should be monitored to determine when a filter needs to be taken offline
for cleaning or replacement?
A. Flow rate
B. Temperature of liquid
C. Differential pressure
D. Water quality
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Process Technology Equipment
Chapter 17 Filters and Dryers
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Process Technology Equipment
Chapter 17 Filters and Dryers
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13. Which of the following does NOT cause damage to equipment from unfiltered
process fluid?
A. Fouling
B. Breakthrough
C. Sampling without proper PPE
D. Channeling
14. Which of the following should a process technician monitor with regard to
filters and dryers?
A. Look for desiccant on the floor.
B. Look for pools of liquid on the floor.
C. Look for leaks around the filter closure.
D. All of the above
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Process Technology Equipment
Chapter 17 Filters and Dryers
15. What are used to document daily equipment and process operations?
A. Log sheets
B. Training manuals
C. Standard operating procedures
D. Equipment user manuals
Clicker Questions
(Note to Instructor: If you have clicker capability in your institution, you may want to
include some of these questions as appropriate. Or perhaps you just want to use them
as a way to check the students’ understanding of the content.)
1. What type of filter uses a vacuum pump to pull feed through a filter medium?
A. Gravity
B. Vacuum
C. Suction
D. Mechanical
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Process Technology Equipment
Chapter 17 Filters and Dryers
2. What is the most common type of filter used in the process industries?
A. Bag
B. Strainers
C. Cartridge
D. Rotary drum
3. What type of strainer is used when a smaller amount of solids is present?
A. “Y” type
B. “T” type
C. “E” type
D. Basket strainer
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Process Technology Equipment
Chapter 17 Filters and Dryers
4. What are the negative consequences of a contaminated product reaching a
customer?
A. Product may be rejected
B. Diminished company reputation
C. Loss of business
D. All of the above
5. What are often used during equipment commissioning when larger particles of
unwanted material are expected?
A. Dryers
B. Rotary drum filters
C. Strainers
D. Fixed bed filters
Process Technology Equipment
Chapter 17 Filters and Dryers
Page 30
APPENDIX, Chapter 17
Table of Contents
Contents
Page
Checking Your Knowledge Answer
Key
31
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Process Technology Equipment
Chapter 17 Filters and Dryers
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Checking Your Knowledge Answer Key
1. Define the following terms:
a. Breakthrough
b. Desiccant
c. Filter aid
d. Micron
2. One purpose of filters is to:
a. add air or other gases to a process stream
b. remove moisture from a process stream
c. remove solid particles from a process stream
d. none of the above
3. List the three common classifications of filters.
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Process Technology Equipment
Chapter 17 Filters and Dryers
4. One purpose of dryers is to:
a. remove trace chemical components of a stream
b. remove moisture
c. clean the water in process streams and products
d. none of the above
5. A ________ is a piece of equipment that uses swirling action to separate
heavier and lighter components of a gas or liquid stream.
a. cyclone
b. conveyer
c. dryer
d. decanter
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Process Technology Equipment
Chapter 17 Filters and Dryers
6. In the case of a dryer, ________________ occurs when the dryer output
contains excessive moisture.
a. breakthrough
b. saturation limit
c. contamination replacement
d. channeling
7. List two steps to help prevent channeling.
8. Which of the following operational hazards can cause damage to the
equipment from unfiltered or undried process fluid? (Select all that apply.)
a. Fouling
b. Channeling
c. Breakthrough
d. Equipment leakage
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Process Technology Equipment
Chapter 17 Filters and Dryers
Page 34
9. (True or False) Process technicians may routinely take samples for lab testing.
10. _____________ are often used during commissioning when larger particles
can be expected.

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