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Question

Which of the following gaseous fuels has the lowest calorific value?

A
Gober gas
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B
Refinery gas
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C
Converter gas
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D
Blast furnace gas
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Solution

The correct option is D Blast furnace gas
Calorific value of these gases are listed in table
Gober gas = 5kWh/Nm3
refinery gas = 1.5kWh/Nm3
Converte gas= 3kWh/Nm3
Blast furnace gas = 0.9kWh/Nm3

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