Towers, Reboilers, & Condensers

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Baton Rouge Community College *

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123

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Mechanical Engineering

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Feb 20, 2024

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Due Sep 25 at 10pm Points 69 Questions 27 Available Aug 21 at 6pm - Sep 25 at 10pm about 1 month Time Limit None Allowed Attempts 2 Attempt Time Score LATEST Attempt 1 750 minutes 16.67 out of 69 Answers will be shown after your last attempt Score for this attempt: 16.67 out of 69 Submitted Sep 21 at 9:36am This attempt took 750 minutes. To successfully complete this assignment, the attached video must be viewed. Link ( https://youtu.be/ex_hScKbYhM) ( https://youtu.be/ex_hScKbYhM) Take the Quiz Again 2 / 2 pts Question 1 Select the characteristic that can best be used to identify a multidraw tower. Distillation - Towers, Reboilers, & Condensers: Process Troubleshooting... https://mybrcc.instructure.com/courses/221833/quizzes/1007946 1 of 12 9/22/2020, 1:19 PM
Number of products leaving the tower 2 / 2 pts Question 2 Select all of the terms that are sometimes used to refer to the products that leave a multi-draw tower. Draws Streams 0 / 2 pts Question 3 Incorrect Select the choice that best describes one way that an azeotropic mixture can be separated. Increase temperature Distillation - Towers, Reboilers, & Condensers: Process Troubleshooting... https://mybrcc.instructure.com/courses/221833/quizzes/1007946 2 of 12 9/22/2020, 1:19 PM
0 / 2 pts Question 4 Incorrect Where is the temperature the highest in a distillation tower during operation?" The top The bottom The middle Temperature is the same throughout tower The top 0 / 2 pts Question 5 Incorrect "In many distillation towers, liquid overflow from each tray is allowed to flow to lower trays. What is this liquid called? External reflux Distillation - Towers, Reboilers, & Condensers: Process Troubleshooting... https://mybrcc.instructure.com/courses/221833/quizzes/1007946 3 of 12 9/22/2020, 1:19 PM
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0 / 3 pts Question 6 Incorrect What type of distillation tower separates a feed into two products? 0 / 2 pts Question 7 Incorrect What can the liquid products obtained from a multi-draw tower be called? Reflux 0 / 9 pts Question 8 Answer 1: Incorrect , , and are the three factor that have the greatest effect on the physical dimensions of a distillation tower. location Distillation - Towers, Reboilers, & Condensers: Process Troubleshooting... https://mybrcc.instructure.com/courses/221833/quizzes/1007946 4 of 12 9/22/2020, 1:19 PM
Answer 2: Answer 3: function size 2 / 2 pts Question 9 Select the physical characteristic that is generally required for distillation towers that handle higher rates of vapor loading. Larger diameter 0 / 2 pts Question 10 Incorrect Select the physical characteristic that is generally required for a distillation tower that operates at low pressure. Relatively tall Distillation - Towers, Reboilers, & Condensers: Process Troubleshooting... https://mybrcc.instructure.com/courses/221833/quizzes/1007946 5 of 12 9/22/2020, 1:19 PM
0 / 2 pts Question 11 Incorrect Which of these names describes a distillation tower system that does not typically condense vapor into an overhead product? Thermosiphon system 0 / 3 pts Question 12 Incorrect [____] is a distillation tower that separates light components from a feed, but does not produce a liquid overhead product. 0 / 2 pts Question 13 Incorrect Systems that separate light components to control a product's initial boiling point often use what kind of distillation tower? Distillation - Towers, Reboilers, & Condensers: Process Troubleshooting... https://mybrcc.instructure.com/courses/221833/quizzes/1007946 6 of 12 9/22/2020, 1:19 PM
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Azeotropic 0 / 2 pts Question 14 Incorrect Select the pressure at which a vacuum distillation tower operates. Above atmospheric 0 / 2 pts Question 15 Incorrect For a given mixture, a vacuum distillation tower accomplishes the distillation process using _________ than an atmospheric tower. Higher pressure Distillation - Towers, Reboilers, & Condensers: Process Troubleshooting... https://mybrcc.instructure.com/courses/221833/quizzes/1007946 7 of 12 9/22/2020, 1:19 PM
0 / 2 pts Question 16 Incorrect The trays in a vacuum tower are ___________ . The same size and distance apart 0 / 6 pts Question 17 Answer 1: Answer 2: Incorrect and are the two the types of reboilers that can be used in natural circulation systems. batch continous 3 / 3 pts Question 18 Distillation - Towers, Reboilers, & Condensers: Process Troubleshooting... https://mybrcc.instructure.com/courses/221833/quizzes/1007946 8 of 12 9/22/2020, 1:19 PM
[____] is the section of a distillation tower near the feed point where part of the feed vaporizes as it enters the tower. 0 / 2 pts Question 19 Incorrect Where are the vapors produced in a kettle reboiler sent? To a thermosiphon 2 / 2 pts Question 20 Which of these is an example of an internal reboiler? Stab-in reboiler Distillation - Towers, Reboilers, & Condensers: Process Troubleshooting... https://mybrcc.instructure.com/courses/221833/quizzes/1007946 9 of 12 9/22/2020, 1:19 PM
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0.67 / 2 pts Question 21 Partial Select all of the choices that may be used to cool vapors from distillation towers. Water Air Dry ice 0 / 2 pts Question 22 Incorrect Select the characteristic that can best be used to tell the difference between a binary tower and a multi-draw tower. Number of feeds entering the tower 2 / 2 pts Question 23 The vapors generated by the reboiler in a distillation system combined with the vapors produced as feed enters the distillation tower is referred Distillation - Towers, Reboilers, & Condensers: Process Troubleshooting... https://mybrcc.instructure.com/courses/221833/quizzes/1007946 10 of 12 9/22/2020, 1:19 PM
to as what? Vapor loading 1 / 2 pts Question 24 Partial Select all of the factors that are commonly used to name a distillation tower. Function 0 / 2 pts Question 25 Incorrect A distillation tower that separates propane and lighter components from a feed can be called what kind of tower? Distillation - Towers, Reboilers, & Condensers: Process Troubleshooting... https://mybrcc.instructure.com/courses/221833/quizzes/1007946 11 of 12 9/22/2020, 1:19 PM
Azeotropic tower 2 / 2 pts Question 26 Select the term that best describes a condenser that condenses all of the vapors from a distillation tower. Total 0 / 3 pts Question 27 Incorrect [___] is a type of furnace that acts as a reboiler using burning fuel as the heating medium. Quiz Score: 16.67 out of 69 Distillation - Towers, Reboilers, & Condensers: Process Troubleshooting... https://mybrcc.instructure.com/courses/221833/quizzes/1007946 12 of 12 9/22/2020, 1:19 PM
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