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15 Questions

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Natural Gas Dehydration Process

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Questions and Answers

What is the primary purpose of natural gas dehydration?

To promote corrosion problems

To increase the dew point of the gas stream

To create downstream processing requirements

To prevent hydrate formation (correct)

What is the dew point of natural gas?

The temperature at which water vapor condenses from the gas stream (correct)

The temperature at which gas is formed from the water vapor

The temperature at which water vapor is added to the gas stream

The temperature at which water vapor evaporates from the gas stream

Which method uses a hygroscopic liquid to remove water vapor from natural gas?

Absorption (Glycol Dehydration Process) (correct)

Tri-ethylene glycol (TEG) process

Adsorption

Natural gas hydration method

What are the primary conditions promoting hydrate formation?

'Free' water present and high pressure Signup and view all the answers

Why do purchasers typically require that gas and liquid petroleum gas (LPG) feedstocks meet certain specifications for maximum water content?

To ensure downstream operations are not hampered by water-based problems Signup and view all the answers

What is the primary reason for the dehydration of natural gas streams?

To prevent hydrate formation in the gas stream Signup and view all the answers

Why is the presence of water undesirable in most commercial hydrocarbon processes?

It promotes side reactions, foaming, or catalyst deactivation Signup and view all the answers

Which process involves using a hygroscopic liquid to contact the wet gas and remove water vapor from it?

Absorption (Glycol Dehydration Process) Signup and view all the answers

What is the primary condition promoting hydrate formation in natural gas?

Low temperature and high pressure Signup and view all the answers

What does the dew point of natural gas indicate?

The temperature at which water vapor condenses from the gas stream Signup and view all the answers

What is the primary purpose of the Sulfinol process?

To remove H2S, CO2, COS, and mercaptans from gases Signup and view all the answers

What is a unique feature of the Sulfinol process compared to other absorption processes?

It uses a mixture of solvents, allowing it to behave as both a chemical and a physical absorption process Signup and view all the answers

What kind of contaminants can the Sulfinol process reduce to low ppm levels?

Sulfur compounds in the product gas Signup and view all the answers

What is a typical operating condition that can be accommodated by the Sulfinol process?

Vast ranges of treating pressures and contaminant concentrations Signup and view all the answers

What is a feature of the Sulfinol process related to equipment size?

Smaller equipment due to low foaming tendency Signup and view all the answers