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

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

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

    What is the primary use of metallurgical coke?

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

    What is the approximate heating value of dry wood bark?

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

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

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

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

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

    Which process is used to produce ethanol from corn kernels?

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

    What is the heating value of biogas?

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

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

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

    What is the composition of typical biogas?

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

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

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

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

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

    Which type of boilers can blend petroleum coke with coal?

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

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

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

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

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

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