Question 1

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

Accepted Answer

The absorption column is designed to remove specific components from a gas stream by absorbing them into a liquid. It does not reverse the absorption process or strip out hydrocarbons from absorption oil; these are functions of a stripping column.

Question 2

Adsorption is best described as:
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.

Accepted Answer

Adsorption is the process where impurities are removed from a process stream by adhering to the surfaces of a solid, typically using materials like activated carbon or silica gel.

Question 3

A scrubber is best described as:
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.

Accepted Answer

A scrubber is a device used to remove chemicals and solids from process gases.

Question 4

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

Accepted Answer

Drying and regeneration involve the removal of moisture or contaminants, not the absorption of gases into a liquid medium.

Question 5

Extraction is defined as a process for separating two materials by:
A) contacting them with a third material
B) boiling point
C) forming a reaction
D) generating crystals

Accepted Answer

Extraction involves separating two materials by contacting them with a third material, typically a solvent, which selectively dissolves one of the components.

Question 6

In extraction a solvent is a chemical that will:
A) initiate a reaction
B) boil the mixture
C) combine crystals
D) dissolve another chemical.

Accepted Answer

A solvent is used to dissolve another chemical, allowing for separation or purification in extraction processes.

Question 7

The ________ is the material that is dissolved in the extraction process.
A) solvent
B) solute
C) extract
D) raffinate

Accepted Answer

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

Question 8

Identify the following components.

Accepted Answer

The answer of Identify the following components.
 ...

Question 9

An absorber column is a device used to remove selected components from a gas stream by:
A) contacting it with a gas or liquid
B) distilling it
C) reaction
D) steam stripping

Accepted Answer

An absorber column removes components from a gas stream by contacting it with a liquid, which absorbs the desired components.

Question 10

Crystallization is often referred to as the opposite of what other common process?
A) distillation
B) dissolving
C) reaction
D) extraction

Accepted Answer

Crystallization is the process of forming solid crystals from a solution, while dissolving is the process of a solid becoming incorporated into a liquid to form a solution.

Question 11

List the following components.

Accepted Answer

The answer of List the following components.
 ...

Question 12

What does the term layer out mean?
A) reaction is complete
B) solids float to top
C) components in the mixture separate into distinct layers.
D) solids drop out

Accepted Answer

The term "layer out" refers to the process where components in a mixture separate into distinct layers, often due to differences in density or solubility.

Question 13

List the following components.

Accepted Answer

The answer of List the following components. 
 ...

Question 14

Label the following components.

Accepted Answer

The answer of Label the following components.
 ...

Question 15

Solvent dewaxing is defined as:
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.

Accepted Answer

Solvent dewaxing is a process used to remove wax from lubricating oils to improve their flow properties at lower temperatures.

Question 16

Label the following components.

Accepted Answer

The answer of Label the following components.
 ...

Question 17

There are three basic types of extraction:
A) liquid-solid, liquid-liquid, solvent
B) leeching, liquid-liquid, washing
C) liquid-liquid, distillation, reaction
D) centrifuge, organic, inorganic

Accepted Answer

The answer of There are three basic types of extraction:
A)...

Question 18

In liquid-liquid extraction the ____ is the name given to the original solution.
A) feed
B) extract
C) raffinate
D) solvent

Accepted Answer

The feed is the original solution in liquid-liquid extraction.

Question 19

The ________ is the name given to the second solution that is formed when the _________ dissolves the solute.
A) extract, solvent
B) raffinate, solvent
C) solvent, extract
D) raffinate, extract

Accepted Answer

The answer of The ________ is the name given to...

Question 20

What are the three main classifications of extraction columns?
A) packed, tray, mechanical
B) hyperbolic, atmospheric, packed
C) forced, induced, natural
D) reaction, mixing, mechanical

Accepted Answer

Extraction columns are typically classified into packed, tray, and mechanical types based on their design and operation.

Quiz 16: Extraction and Other Separation Systems

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

Adsorption is best described as:

A scrubber is best described as:

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

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

In extraction a solvent is a chemical that will:

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

Identify the following components.

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

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

List the following components.

What does the term layer out mean?

List the following components.

Label the following components.

Solvent dewaxing is defined as:

Label the following components.

There are three basic types of extraction:

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

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

What are the three main classifications of extraction columns?