Natural Gas Plants
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Questions and Answers

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

  • To remove nitrogen from the gas stream
  • To separate ethane, propane, and butane
  • To recover elemental sulfur (correct)
  • To produce helium

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

  • By glycol based absorption units
  • Through a catalytic process
  • By a cryogenic turboexpander
  • Using cryogenic distillation (correct)

    • Which process in natural gas processing involves the extraction of ethane, propane, and butane?

  • Liquefaction
  • Hydrocarbon Recovery (correct)
  • Gas Treating
  • Helium Production

    • What is the main component of liquefied natural gas (LNG) produced in natural gas processing?

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

    In a system with three cooling stages for LNG production, what does the sub-cooling stage achieve?

    <p>Takes the gas down to LNG state at around -162°C</p> Signup and view all the answers

    What is the common method used to cool the gas in the pre-cooling stage of LNG production?

    <p>Propane or a mixture of propane and ethane</p> Signup and view all the answers

    What is the predominant constituent of natural gas?

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

    Which of the following is NOT a contaminant in the natural gas stream?

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

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

    <p>For transmission purposes</p> Signup and view all the answers

    Which of the following is a saleable by-product in natural gas processing?

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

    What does 'sour or sweet' refer to in the context of natural gas plants?

    <p>The composition of the gas</p> Signup and view all the answers

    Why is it necessary to remove impurities from natural gas before use?

    <p>To meet quality standards for industrial or domestic use</p> Signup and view all the answers

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

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

    Why is compression divided into several stages in natural gas production?

    <p>To improve maintenance and availability</p> Signup and view all the answers

    How is dehydration achieved in natural gas processing?

    <p>By contacting the gas with a glycol mixture</p> Signup and view all the answers

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

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

    What is the main reason for acid gas removal in natural gas processing?

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

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