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:
|
| 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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