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Chemical Engineering - Fuels and Combustion

Exercise : Fuels and Combustion - Section 8
36.
Washing of coal
reduces its ash & sulphur content.
improves its coking properties.
increase the fusion point of its ash by removing chlorine compounds.
all (a), (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
37.
Calorific value of of blast furnace gas is around __________ KCal/Nm3.
850
1800
4200
6500
Answer: Option
Explanation:
No answer description is available. Let's discuss.
38.
In low temperature carbonisation of coal as compared to high temperature carbonisation __________ produced is less.
difference in gross & net calorific value of the coke oven gas
free carbon content in tar
yield percentage of coke
yield of ammonia present in coke oven gas
Answer: Option
Explanation:
No answer description is available. Let's discuss.
39.
Coal tar (produced by high temperature carbonisation) is the main source of
aromatic compounds
alphatic compounds
paraffins
olefins
Answer: Option
Explanation:
No answer description is available. Let's discuss.
40.
The calorific value is the highest out of the following for
producer gas
water gas
coke oven gas
blast furnace gas
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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