Gasification

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Questions and Answers

Which of the following is NOT a traditional fossil fuel mentioned in the text?

  • Coal
  • Biomass (correct)
  • Oil
  • Gas

What is the main characteristic of biomass fuels?

  • They are non-renewable
  • They are more expensive than traditional fossil fuels
  • They are only used for heat production
  • They are derived from living organisms (correct)

What makes biomass fuels viable as alternative sources of heat and electricity?

  • Increased availability of landfills
  • Decreased costs of fossil fuels
  • Advances in technology (correct)
  • Combustion with gas, oil, or coal

Which technology is commonly used for the conversion of syngas into liquid fuels?

<p>Fischer-Tropsch process (D)</p> Signup and view all the answers

What is the main advantage of using a black liquor gasifier instead of a conventional recovery boiler in a pulp mill?

<p>Increased energy efficiency (B)</p> Signup and view all the answers

Which term refers to a carbonaceous fuel derived from coal or crude oil?

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

What is the primary use of metallurgical coke?

<p>Smelting iron ore in blast furnaces (B)</p> Signup and view all the answers

Which of the following is NOT a type of biomass fuel mentioned in the text?

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

What is the approximate heating value of dry wood bark?

<p>2000 kJ/kg (D)</p> Signup and view all the answers

Which method is NOT mentioned as a combustion method for municipal waste?

<p>Rotary kilns (A)</p> Signup and view all the answers

Which of the following is NOT a liquid biofuel mentioned in the text?

<p>Methanol (A)</p> Signup and view all the answers

Which process is used to produce ethanol from corn kernels?

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

What is the heating value of biogas?

<p>600 BTU/ft3 (B)</p> Signup and view all the answers

What is the main feedstock for fuel ethanol in North America?

<p>Corn (A)</p> Signup and view all the answers

What is the composition of typical biogas?

<p>55% to 65% methane, 30% to 35% carbon dioxide (D)</p> Signup and view all the answers

Which type of gasifier is best suited to relatively reactive coals, low rank coals, and other fuels such as biomass?

<p>Fluidized bed gasifiers (D)</p> Signup and view all the answers

What is another name for heavy fuel oil (HFO)?

<p>All of the above (D)</p> Signup and view all the answers

What are the advantages of using oil emulsions as a replacement for HFO?

<p>All of the above (D)</p> Signup and view all the answers

What is the purpose of concentrated solar power (CSP)?

<p>All of the above (D)</p> Signup and view all the answers

Which type of boilers can blend petroleum coke with coal?

<p>Conventional pulverized coal boilers (A)</p> Signup and view all the answers

What is the typical composition of fuel-grade petroleum coke?

<p>90% C, 4% Hz, 2% 02,1 % N, 2% S, and 0.25% ash (D)</p> Signup and view all the answers

What are some notable examples of coke-fired plants in Canada?

<p>Both A and B (C)</p> Signup and view all the answers

What is the main component of syngas produced in entrained flow gasifiers?

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

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