23 Questions
Which of the following is a characteristic of biomass fuels?
They are derived from living organisms
What makes biomass fuels viable as alternative sources of heat and electricity?
All of the above
In what way can facilities that produce biomass fuels utilize the excess energy?
They can sell the excess electricity or heat to external clients
Which of the following is NOT a type of biomass fuel mentioned in the text?
Coal
What is the approximate heating value of dry wood bark?
20000 kJ/kg
What is the main reason why it is generally uneconomical to transport biomass fuels over long distances?
High variability in composition
What is the most common type of biomass fuel mentioned in the text?
Wood pellets
Which technology is used for the conversion of syngas into liquid fuels?
Fischer-Tropsch process
What is the main purpose of black liquor gasification in pulp mills?
To increase energy efficiency
Which of the following is NOT considered a non-traditional fossil fuel?
Natural gas
What is the primary use of metallurgical coke?
To smelt iron ore
Which of the following is a renewable biofuel made from a variety of biomass materials?
Ethanol
What is the main feedstock for fuel ethanol in North America?
Corn
Which process involves rapidly heating biomass to about 500°C in the absence of oxygen to obtain a synthetic fuel?
Pyrolysis
What is the typical composition of biogas?
55% methane, 35% carbon dioxide
Which type of gasifier is best suited to relatively reactive coals, low rank coals, and other fuels such as biomass?
Fluidized bed gasifier
What is the primary advantage of using oil emulsions as a replacement for heavy fuel oil (HFO)?
Simultaneous reduction of NOx and particulate emissions
What is the purpose of using mirrors in concentrated solar power (CSP) systems?
To reflect sunlight to a central collector tower
What is the operating time of concentrated solar power (CSP) systems limited by?
Daylight
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
Which type of boiler can blend petroleum coke with coal?
Conventional pulverized coal boilers
Which of the following is a characteristic of petroleum coke compared to coal?
Low volatile content
Which of the following is a classification of gasifiers used in gasification plants?
All of the above
Test your knowledge on gasification, biomass conversion, and syngas utilization in this quiz. Learn about the Fischer-Tropsch process and its role in converting syngas into liquid fuels for vehicles.
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