Natural Gas Plants Overview
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Questions and Answers

What is the predominant constituent of natural gas?

  • Ethane
  • Methane (correct)
  • Propane
  • Butane

    • What are some contaminants that can be found in natural gas?

  • Helium
  • Oxygen
  • Hydrogen Sulfide (correct)
  • Argon

    • What is the purpose of re-pressurizing the natural gas in a natural gas plant?

  • To increase the efficiency of processing
  • To reduce the volume of gas for storage
  • To remove impurities
  • For transmission purposes (correct)

    • Why is it necessary to remove impurities from natural gas?

    <p>As they are objectionable to pipeline transmission companies</p> Signup and view all the answers

    Which of the following is not a hydrocarbon constituent found in natural gas?

    <p>Nitrogen</p> Signup and view all the answers

    What is the main purpose of the Claus process described in the text?

    <p>To recover sulfur from feed gases</p> Signup and view all the answers

    Which process is commonly used for hydrocarbon recovery in modern plants?

    <p>Cryogenic turboexpander</p> Signup and view all the answers

    How is nitrogen typically removed from the gas stream in natural gas processing?

    <p>Cryogenic distillation</p> Signup and view all the answers

    In the liquefaction process, what is the purpose of pre-cooling?

    <p>Cools the gas to sub-zero temperatures</p> Signup and view all the answers

    Which refrigerant is commonly used in sub-cooling during the liquefaction process?

    <p>Methane</p> Signup and view all the answers

    What is the purpose of the absorption process in natural gas treatment?

    <p>To absorb hydrogen sulfide and carbon dioxide</p> Signup and view all the answers

    Which stage involves flashing off gases removed in the separation process at low pressure from the liquid hydrocarbons?

    <p>Stabilization</p> Signup and view all the answers

    What is the main purpose of sulfur recovery in natural gas processing?

    <p>To prevent corrosive damage and meet regulatory requirements</p> Signup and view all the answers

    Which type of compressor is typically used for low-pressure compression in natural gas processing?

    <p>Reciprocating compressor</p> Signup and view all the answers

    What is the purpose of the cryogenic removal process in acid gas removal?

    <p>To remove high concentrations of CO2</p> Signup and view all the answers

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