Coal Combustion Process
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Questions and Answers

What is the main component of coal that significantly influences its energy content?

  • Hydrogen
  • Carbon (correct)
  • Nitrogen
  • Oxygen

How does the presence of hydrogen in coal impact its combustion properties?

  • Increases the calorific value (correct)
  • Reduces the heating value
  • Decreases the combustion efficiency
  • Has no impact on combustion properties

Which element found in coal can act as an impurity and affect the combustion process?

  • Carbon
  • Nitrogen (correct)
  • Oxygen
  • Hydrogen

In a coal-fired powerplant, which component's presence significantly alters the heating value and combustion properties of coal?

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

What is the role of nitrogen in the combustion of coal?

<p>Reacting with oxygen to produce nitrogen oxides that can float into the atmosphere (A)</p> Signup and view all the answers

How do impurities like sulfur affect the combustion of coal?

<p>Release fumes and harmful byproducts when burned (D)</p> Signup and view all the answers

Which statement accurately describes the combustion properties of coal?

<p>Coal combustion can release harmful fumes and byproducts (C)</p> Signup and view all the answers

Why is coal considered a versatile energy source?

<p>It plays a role in multiple industries beyond electricity generation (B)</p> Signup and view all the answers

What is the primary purpose of heating coal with steam in gasification?

<p>To produce 'town' gas for residential use (A)</p> Signup and view all the answers

Which chemical building blocks can be produced from syngas obtained through coal gasification?

<p>Methanol, ammonia, and urea (C)</p> Signup and view all the answers

In addition to the energy industry, which other industry does coal serve according to the text?

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

What similarity do synthetic fuels produced from coal liquefaction have with petroleum?

<p>Both have similar properties to diesel and gasoline (C)</p> Signup and view all the answers

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