Advantages of fluidised bed combustion are ____________________?

Byadmin March 7, 2019August 26, 2021

Advantages of fluidised bed combustion are ____________________?

A. Reduced NOx formation in flue gas
B. Lower furnace operating temperature
C. High heat transfer rate
D. All A., B. & C.

Fuels and Combustion

Which of the following can be made into briquettes without the use of a binder ?

Which of the following can be made into briquettes without the use of a binder ?

A. Lignite
B. Bituminous coal
C. Anthracite coal
D. None of these

Read More Which of the following can be made into briquettes without the use of a binder ?
CHEMICAL ENGINEERING | Fuels and Combustion

Which will have the least volatile matter and hence will be the most difficult to ignite?

Question: Which will have the least volatile matter and hence will be the most difficult to ignite?
[A].

Bituminous coal
[B].
Coke
[C].
Semi-bituminous coal
[D].
Aanthracite

Answer: Option B

Explanation:

No answer description available for this question.

Read More Which will have the least volatile matter and hence will be the most difficult to ignite?
Fuels and Combustion

Pure carbon is completely burnt in oxygen. The flue gas analysis is 70%CO2, 20%CO and 10%O2. The percent excess oxygen used is __________________?

Pure carbon is completely burnt in oxygen. The flue gas analysis is 70%CO2, 20%CO and 10%O2. The percent excess oxygen used is __________________?

A. 20
B. 12.5
C. 0
D. 10

Read More Pure carbon is completely burnt in oxygen. The flue gas analysis is 70%CO2, 20%CO and 10%O2. The percent excess oxygen used is __________________?
CHEMICAL ENGINEERING | Fuels and Combustion

Main use of soft coke is as __________ fuel.

Question: Main use of soft coke is as __________ fuel.
[A].

domestic
[B].
blastfurnace
[C].
foundary
[D].
none of these

Answer: Option A

Explanation:

No answer description available for this question.

Read More Main use of soft coke is as __________ fuel.
CHEMICAL ENGINEERING | Fuels and Combustion

Commercial production of petrol from coal (as practised in a factory at Sasol in South Africa) is done by the __________ of coal.

Question: Commercial production of petrol from coal (as practised in a factory at Sasol in South Africa) is done by the __________ of coal.
[A].

hydrogenation
[B].
gasification
[C].
carbonisation
[D].
none of these

Answer: Option A

Explanation:

No answer description available for this question.

Read More Commercial production of petrol from coal (as practised in a factory at Sasol in South Africa) is done by the __________ of coal.
CHEMICAL ENGINEERING | Fuels and Combustion

In low temperature carbonisation of coal as compared to high temperature carbonisation __________ produced is less.

Question: In low temperature carbonisation of coal as compared to high temperature carbonisation __________ produced is less.
[A].

difference in gross & net calorific value of the coke oven gas
[B].
free carbon content in tar
[C].
yield percentage of coke
[D].
yield of ammonia present in coke oven gas

Answer: Option A

Explanation:

No answer description available for this question.

Read More In low temperature carbonisation of coal as compared to high temperature carbonisation __________ produced is less.

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