Gasification

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Which of the following is a characteristic of biomass fuels?

They are non-renewable

They are derived from living organisms (correct)

They are more expensive than fossil fuels

They are only used for electricity production

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

Increased costs of fossil fuels

Shortages of landfills

Advances in technology

All of the above (correct)

In what way can facilities that produce biomass fuels utilize the excess energy?

They can convert the excess energy into biomass fuels

They can release the excess energy into the atmosphere

They can sell the excess electricity or heat to external clients (correct)

They can store the excess energy for later use

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

Coal Signup and view all the answers

What is the approximate heating value of dry wood bark?

20000 kJ/kg Signup and view all the answers

What is the main reason why it is generally uneconomical to transport biomass fuels over long distances?

High variability in composition Signup and view all the answers

What is the most common type of biomass fuel mentioned in the text?

Wood pellets Signup and view all the answers

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

Fischer-Tropsch process Signup and view all the answers

What is the main purpose of black liquor gasification in pulp mills?

To increase energy efficiency Signup and view all the answers

Which of the following is NOT considered a non-traditional fossil fuel?

Natural gas Signup and view all the answers

What is the primary use of metallurgical coke?

To smelt iron ore Signup and view all the answers

Which of the following is a renewable biofuel made from a variety of biomass materials?

Ethanol Signup and view all the answers

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

Corn Signup and view all the answers

Which process involves rapidly heating biomass to about 500°C in the absence of oxygen to obtain a synthetic fuel?

Pyrolysis Signup and view all the answers

What is the typical composition of biogas?

55% methane, 35% carbon dioxide 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?

Fluidized bed gasifier Signup and view all the answers

What is the primary advantage of using oil emulsions as a replacement for heavy fuel oil (HFO)?

Simultaneous reduction of NOx and particulate emissions Signup and view all the answers

What is the purpose of using mirrors in concentrated solar power (CSP) systems?

To reflect sunlight to a central collector tower Signup and view all the answers

What is the operating time of concentrated solar power (CSP) systems limited by?

Daylight Signup and view all the answers

Which of the following is a typical composition for fuel-grade petroleum coke?

90% C, 4% Hz, 2% 02,1 % N, 2% S, and 0.25% ash Signup and view all the answers

Which type of boiler can blend petroleum coke with coal?

Conventional pulverized coal boilers Signup and view all the answers

Which of the following is a characteristic of petroleum coke compared to coal?

Low volatile content Signup and view all the answers

Which of the following is a classification of gasifiers used in gasification plants?

All of the above Signup and view all the answers

Gasification

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Questions and Answers

Which of the following is a characteristic of biomass fuels?

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

In what way can facilities that produce biomass fuels utilize the excess energy?

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

What is the approximate heating value of dry wood bark?

What is the main reason why it is generally uneconomical to transport biomass fuels over long distances?

What is the most common type of biomass fuel mentioned in the text?

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

What is the main purpose of black liquor gasification in pulp mills?

Which of the following is NOT considered a non-traditional fossil fuel?

What is the primary use of metallurgical coke?

Which of the following is a renewable biofuel made from a variety of biomass materials?

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

Which process involves rapidly heating biomass to about 500°C in the absence of oxygen to obtain a synthetic fuel?

What is the typical composition of biogas?

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

What is the primary advantage of using oil emulsions as a replacement for heavy fuel oil (HFO)?

What is the purpose of using mirrors in concentrated solar power (CSP) systems?

What is the operating time of concentrated solar power (CSP) systems limited by?

Which of the following is a typical composition for fuel-grade petroleum coke?

Which type of boiler can blend petroleum coke with coal?

Which of the following is a characteristic of petroleum coke compared to coal?

Which of the following is a classification of gasifiers used in gasification plants?

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