Chemical Engineering :: Fuels and Combustion
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The gasification reaction represented by, C + H2O = CO + H2, is
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Insitu theory and drift theory are related to the
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Pick out the wrong statement.
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Heat penetration rate in narrow coke ovens in high temperature carbonisation of coal is around __________ cm/hr.
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Which of the following will generate maximum volume of product of complete combustion (Nm3/Nm3 of fuel) ?
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Which of the following will be unsuitable for dust cleaning from flue gas at 400°C from a pulverised coal fired boiler ?
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Emission of dense white smoke out of the chimney of a thermal power plant is an indication of the use of
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Pick out the wrong statement.:
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A good metallurgical coke should have very low
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Cannel coal
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A.
Indian coals on an average contain 25-30% ash as against 10-12% ash in imported coking coal.
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B.
Ammonia is recovered in the form of ammonium sulphate in direct process of by-product recovery.
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C.
A high swelling index number of coking coal indicates poor caking properties of coal.
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D.
Wash oil is used for scrubbing benzol from coke oven gas.
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A.
Carburetted water gas is also called blue gas.
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B.
Coals are divided in four species according to their carbon content in Seylor's classification.
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C.
Carbonisation time in a by-product coke oven is about 16 hours.
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D.
Gross and net calorific value of a fuel is the same, if it does not contain hydrogen or hydrocarbons.
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