Chemical Engineering :: Fuels and Combustion
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Pick out the wrong statement.
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Preheating of a gaseous fuel results in increased
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Eschka mixture, which is used for the determination of sulphur in coal, is a mixture of
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Fossil fuels mean
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Sometimes water is sprayed during coal charging in the coke oven, which helps in
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Which of the following is not a binder for coal briquetting ?
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The liquid used for the washing of coal in an industrial coal washery is a mixture of water and
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Spontaneous combustion of coal on storage results due to
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High temperature carbonisation of coal produces
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Which of the following is the most poisonous gas ?
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A.
Theoretical flame temperature is the temperature attained by the products of combustion, when the fuel is burned without loss or gain of heat.
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B.
Burning the fuel with theoretically required amount of pure oxygen results in attainment of maximum adiabatic flame temperature.
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C.
Burning the fuel with excess pure oxygen results in maximum theoretical flame temperature.
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D.
Adiabatic flame temperatures of actual combustions are always less than the maximum values.
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A.
prevention of clinker formation in the oven.
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B.
controlling the dust nuisance while charging the coal.
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C.
reducing the cracking of hydrocarbons in the gas and increasing the percentage of CO & H2 in the gas (due to the endothermic reaction represented by C + H2O = CO + H2)
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D.
all (a), (b) and (c).
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