Natural Gas Plants Overview

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Questions and Answers

What is the predominant constituent of natural gas?

  • Propane
  • Butane
  • Methane (correct)
  • Ethane

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

  • Oxygen (correct)
  • Helium
  • Carbon Dioxide
  • Nitrogen

What is the main purpose of a natural gas plant in relation to the raw gas from a well?

  • Remove impurities (correct)
  • Cool it for transportation
  • Increase methane content
  • Convert it into gasoline

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

<p>Sulfur (B)</p> Signup and view all the answers

What type of natural gas is sweet gas?

<p>Gas with low sulfur content (D)</p> Signup and view all the answers

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

<p>For transportation purposes (B)</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 (C)</p> Signup and view all the answers

In gas treating dehydration, what is typically used in absorption units similar to scrubbers?

<p>Glycol (C)</p> Signup and view all the answers

How is hydrocarbon recovery usually achieved in modern plants according to the text?

<p>By cryogenic turboexpander followed by a fractionating process (C)</p> Signup and view all the answers

Which gas removal process uses cryogenic distillation similar to hydrocarbons according to the text?

<p>Nitrogen removal (B)</p> Signup and view all the answers

What is the main purpose of liquefaction in natural gas processing?

<p>To produce liquefied natural gas (LNG) (A)</p> Signup and view all the answers

What refrigerant is usually used in the sub-cooling stage of the liquefaction process?

<p>Methane (D)</p> Signup and view all the answers

What is the purpose of the dehydration process in natural gas production?

<p>To remove water through contact with a glycol mixture (D)</p> Signup and view all the answers

Which type of compressor is often used for natural gas gathering systems?

<p>Centrifugal compressors (D)</p> Signup and view all the answers

Why are gases like CO2 and H2S removed in the Acid Gas Removal stage of natural gas processing?

<p>To prevent corrosive damage to equipment and pipelines (D)</p> Signup and view all the answers

What is the purpose of sulfur recovery using the Claus process?

<p>To recover sulfur from an H2S rich gas stream (B)</p> Signup and view all the answers

Which stage of natural gas production involves the absorption of hydrogen sulfide and carbon dioxide by a solution of amine?

<p>Acid Gas Removal (A)</p> Signup and view all the answers

What is the main purpose of stabilization in natural gas production?

<p>To increase the pressure of gases for sales gas (A)</p> Signup and view all the answers

What is the purpose of absorption in the Acid Gas Removal process?

<p>To absorb hydrogen sulfide and carbon dioxide using amine solutions (C)</p> Signup and view all the answers

What drives the compressors used in natural gas production?

<p>Electrical motors or internal combustion engines (D)</p> Signup and view all the answers

Which process typically follows compression in a natural gas production facility?

<p>Dehydration (C)</p> Signup and view all the answers

What is a characteristic of screw compressors used in natural gas gathering systems?

<p>Typically used for reservoir pressure maintenance gas injection (D)</p> Signup and view all the answers

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