Natural Gas Purification Process

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What is the purpose of the Claus process in natural gas processing?

To dehydrate the natural gas

To remove nitrogen from the gas stream

To separate helium from nitrogen

To recover sulfur from H2S (correct)

Which gas is typically removed by cryogenic distillation in a manner similar to hydrocarbons in natural gas processing?

Hydrogen

Helium

Methane

Nitrogen (correct)

In natural gas liquefaction, what is the purpose of the sub-cooling stage in the cryogenic process?

To extract propane and ethane

To cool the gas to about -162°C (correct)

To maximize the efficiency of the cooling process

To remove impurities from the natural gas

What is the typical composition of liquefied natural gas (LNG) produced in natural gas processing?

>90% methane Signup and view all the answers

Which process is undertaken most often for hydrocarbon recovery in modern natural gas plants?

Cryogenic turboexpander followed by fractionating Signup and view all the answers

What is the main function of natural gas plants mentioned in the text?

Purify natural gas and remove contaminants Signup and view all the answers

Which hydrocarbon is mentioned as the predominant constituent in natural gas?

Methane Signup and view all the answers

What is a common contaminant found in the natural gas stream mentioned in the text?

Water vapor Signup and view all the answers

What is the purpose of re-pressurizing the gas in natural gas plants?

For transmission purposes Signup and view all the answers

What type of hydrocarbons are removed as saleable by-products in natural gas plants?

Ethane, propane, butane, condensate, and sulfur Signup and view all the answers

What is the purpose of stabilization in the natural gas processing facility?

To increase the pressure of the gases Signup and view all the answers

Which type of compressors are typically used for natural gas gathering systems and liquefied natural gas (LNG) applications?

Screw compressors Signup and view all the answers

What is the main reason for using cryogenic removal in the gas processing plant?

To remove CO2 and H2S when concentrations are high Signup and view all the answers

What role does acid gas removal play in the natural gas processing facility?

Absorbing hydrogen sulfide and carbon dioxide Signup and view all the answers

How is steam turbine power generation utilized in the natural gas processing facility?

To drive compressors Signup and view all the answers

Natural Gas Purification Process

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