Question 1

List the following components.

Accepted Answer

1) Feed
2) Motor
3) Scraper blades
4) Arms
5) Shaft
6) Parazylene Process Crystallizer
7) Refrigerated jacket
8) Support bearing
9) To Tank to Centrifuge
10) Pump

Question 2

What does the term layer out mean?

Accepted Answer

A)  reaction is complete 
B)  solids float to top 
C)  components in the mixture separate into distinct layers. 
D)  solids drop out C

Question 3

Crystallization is often referred to as the opposite of what other common process?

Accepted Answer

A)  distillation 
B)  dissolving 
C)  reaction 
D)  extraction B

Question 4

Regeneration and drying is best defined as all of the following except:

Accepted Answer

A)  In drying the removal of relatively small amounts of water or other liquids from solids or gases. 
B)  Drying Is typically the final step in a series of operations. 
C)  Regeneration usually consists of two vessels (beds) containing a granular solid. 
D)  In regeneration the solid is specifically chosen for its high adsorbency of the target vapor and ease of regeneration. 
E)  In drying and regeneration dirty gases are absorbed into the liquid medium.

Question 5

The ________ is the material that is dissolved in the extraction process.

Accepted Answer

A)  solvent 
B)  solute 
C)  extract 
D)  raffinate

Question 6

The Absorption Column in absorption and stripping does all the following except: (Select all that apply)

Accepted Answer

A)  The liquid phase removes lighter components from the vapor phase. 
B)  One direction component removal. 
C)  Reverses absorption process. 
D)  Strips out hydrocarbons from absorption oil. 
E)  A & B
F) C & D

Question 7

Extraction is defined as a process for separating two materials by:

Accepted Answer

A)  contacting them with a third material 
B)  boiling point 
C)  forming a reaction 
D)  generating crystals

Question 8

There are three basic types of extraction:

Accepted Answer

A)  liquid-solid, liquid-liquid, solvent 
B)  leeching, liquid-liquid, washing 
C)  liquid-liquid, distillation, reaction 
D)  centrifuge, organic, inorganic

Question 9

Solvent dewaxing is defined as:

Accepted Answer

A)  the removal of wax from lubricating oils. 
B)  The removal of solvent from lubricating oils. 
C)  The removal of water from hydrocarbons. 
D)  The blending of wax, solvent and light oils.

Question 10

The ________ is the name given to the second solution that is formed when the _________ dissolves the solute.

Accepted Answer

A)  extract, solvent 
B)  raffinate, solvent 
C)  solvent, extract 
D)  raffinate, extract

Question 11

Identify the following components.

Accepted Answer

The answer of Identify the following components.
 ...

Question 12

List the following components.

Accepted Answer

The answer of List the following components. 
 ...

Question 13

Label the following components.

Accepted Answer

The answer of Label the following components.
 ...

Question 14

Adsorption is best described as:

Accepted Answer

A)  To remove liquid hydrocarbons from the absorption oil. 
B)  Beadlike particles that contain charged ions on solid surfaces. 
C)  Removing the moisture content to .5%. 
D)  The process in which an impurity is removed from a process stream by making it adhere to the surfaces of a solid.

Question 15

What are the three main classifications of extraction columns?

Accepted Answer

A)  packed, tray, mechanical 
B)  hyperbolic, atmospheric, packed 
C)  forced, induced, natural 
D)  reaction, mixing, mechanical

Question 16

Label the following components.

Accepted Answer

The answer of Label the following components.
 ...

Question 17

An absorber column is a device used to remove selected components from a gas stream by:

Accepted Answer

A)  contacting it with a gas or liquid 
B)  distilling it 
C)  reaction 
D)  steam stripping

Question 18

A scrubber is best described as:

Accepted Answer

A)  A device used to remove chemicals and solids fro process gases. 
B)  A device filled with a porous solid to remove gases and liquids from a mixture. 
C)  A device used to remove selected components from a gas stream by contacting it with a gas or liquid. 
D)  The second solution that forms a solvent to dissolve a solute.

Question 19

In extraction a solvent is a chemical that will:

Accepted Answer

A)  initiate a reaction 
B)  boil the mixture 
C)  combine crystals 
D)  dissolve another chemical.

Question 20

In liquid-liquid extraction the ____ is the name given to the original solution.

Accepted Answer

A)  feed 
B)  extract 
C)  raffinate 
D)  solvent

Exam 16: Extraction and Other Separation Systems

List the following components.

What does the term layer out mean?

Crystallization is often referred to as the opposite of what other common process?

Regeneration and drying is best defined as all of the following except:

The ________ is the material that is dissolved in the extraction process.

The Absorption Column in absorption and stripping does all the following except: (Select all that apply)

Extraction is defined as a process for separating two materials by:

There are three basic types of extraction:

Solvent dewaxing is defined as:

The is the name given to the second solution that is formed when the _ dissolves the solute.

Identify the following components.

List the following components.

Label the following components.

Adsorption is best described as:

What are the three main classifications of extraction columns?

Label the following components.

An absorber column is a device used to remove selected components from a gas stream by:

A scrubber is best described as:

In extraction a solvent is a chemical that will:

In liquid-liquid extraction the ____ is the name given to the original solution.