Task3

What is the purpose of a gas sweetening unit?

To remove impurities from natural gas

To increase the pressure of natural gas

To convert natural gas into liquid form

To extract helium from natural gas

Which of the following impurities are typically removed in a gas sweetening unit?

Which process is commonly used in gas sweetening units to remove hydrogen sulfide (H2S)?

Amine Treating

Cryogenic Distillation

Membrane Separation

Adsorption

What is the main advantage of using amine treating in gas sweetening units?

High H2S removal efficiency

Low energy consumption

Simple operation and maintenance

Minimal environmental impact

Which of the following is a potential challenge in operating a gas sweetening unit?

Corrosion of equipment due to acidic gases

Foaming issues in the amine solution

Excessive pressure drop across the unit

Formation of hydrates in the gas stream

Loss of natural gas during the process

What is the typical pH range of the amine solution used in gas sweetening units?

8-10

4-6

12-14

2-3

Which of the following is a common solvent used in amine treating for gas sweetening?

What is the purpose of a regenerator in a gas sweetening unit?

To remove absorbed impurities from the amine solution

To compress the treated gas for transportation

To cool down the gas stream before further processing

To separate natural gas liquids from the gas stream

Which of the following is a potential environmental impact of gas sweetening units?

What is the typical temperature range for the gas entering a gas sweetening unit?

25-60°C

-50 to -80°C

100-150°C

500-800°C

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