Chemical Engineering - Fuels and Combustion
Exercise :: Fuels and Combustion - Section 9
1. |
The reaction, C + CO2 2CO, taking place during coal gasification is called the __________ reaction. |
A. |
Neumann reversal | B. |
shift conversion | C. |
Boudouard | D. |
reduction |
Answer: Option C
Explanation:
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2. |
The maximum percentage of CO2 in a flue gas (from a carbonaceous fuel) can be |
Answer: Option A
Explanation:
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3. |
A good quality coal should have |
A. |
low fusion point of ash | B. |
high ash content | C. |
high sulphur | D. |
none of these |
Answer: Option D
Explanation:
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4. |
High amount of sulphur and phosphorous in coke causes |
A. |
decrease in its calorific value. | B. |
increase in its strength. | C. |
brittleness of steel made by using it. | D. |
none of these. |
Answer: Option C
Explanation:
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5. |
The difference between total carbon and fixed carbon of coal will be minimum in case of |
A. |
lignite | B. |
bituminous coal | C. |
anthracite | D. |
high temperature coke (V.M < 0.5%) |
Answer: Option D
Explanation:
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