A. Indian coals on an average contain 25-30% ash as against 10-12% ash in imported coking coal
B. Ammonia is recovered in the form of ammonium sulphate in direct process of by-product recovery
C. A high swelling index number of coking coal indicates poor caking properties of coal
D. Wash oil is used for scrubbing benzol from coke oven gas
Answer: Option C
This Question Belongs to Chemical Engineering >> Fuels And Combustion
Incomplete combustion of fuel in the furnace is judged by high __________ of the flue gases.
A. CO content
B. Dew point
C. CO2 content
D. O2 content
High sulphur content in a fuel __________ of the flue gases.
A. Decreases the dew point
B. Increases the dew point
C. Reduces the combustion efficiency by limiting the permissible temperature reduction
D. Both B & C
Coal tar fuel - 200 (CTF 200) is a mixture of
A. Pitch and creosote oil
B. Light oil and pitch
C. Anthracene and crecosote oil
D. Solar oil and pitch
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