P4 - Stabilization and Fractionation

What is the purpose of crude stabilization in the oil industry?

• To increase the density of crude oil

• To remove impurities from crude oil

• To stabilize crude oil by removing volatile components

• To enhance the color of crude oil

Answer explanation

The purpose of crude stabilization is to stabilize crude oil by removing volatile components, which helps prevent the formation of gas and improves safety and transportability.

Which process is used to recover valuable NGLs such as ethane, propane, and butane?

• Distillation

• Fractionation

• Filtration

• Evaporation

Answer explanation

Fractionation is the process used to separate and recover valuable natural gas liquids (NGLs) like ethane, propane, and butane based on their different boiling points, making it the correct choice.

What does NGL stand for in the context of natural gas processing?

• Natural Gas Liquids

• Non-Gaseous Liquids

• Neutral Gas Liquids

• Natural Gaseous Liquids

Answer explanation

NGL stands for Natural Gas Liquids, which are components of natural gas that are liquid at surface conditions. This term is widely used in natural gas processing to refer to these valuable byproducts.

What is the main benefit of reducing the vapor pressure of crude oil?

• It makes the oil more colorful

• It allows for safer handling and transport

• It increases the oil's viscosity

• It enhances the oil's flavor

Answer explanation

Reducing the vapor pressure of crude oil minimizes the risk of evaporation and flammability, making it safer to handle and transport. This is crucial for preventing accidents and environmental hazards.

What are the processes used to separate and store NGLs for transportation or sale?

• Distillation and filtration

• Fractionation and cryogenic processes

• Evaporation and condensation

• Filtration and sedimentation

Answer explanation

Fractionation and cryogenic processes are essential for separating and storing NGLs, as they effectively separate components based on boiling points and utilize low temperatures to condense gases into liquids for transport or sale.