With increase in moisture content of coal, its_____________________?

Byadmin March 7, 2019August 26, 2021

With increase in moisture content of coal, its_____________________?

A. Calorific value increases sometimes
B. Bulk density always decreases
C. Clinkering tendency during combustion increases
D. None of these

CHEMICAL ENGINEERING | Fuels and Combustion

Catalyst used in Fischer-Tropsch process is

Question: Catalyst used in Fischer-Tropsch process is
[A].

nickel
[B].
zinc oxide
[C].
alumina
[D].
thorium oxide

Answer: Option A

Explanation:

No answer description available for this question.

Read More Catalyst used in Fischer-Tropsch process is
Fuels and Combustion

Temperature of preheated air used for the transportation of pulverised coal through pipes to the burner of a boiler furnace is restricted to a maximum limit of about 300° C to avoid the___________________?

Temperature of preheated air used for the transportation of pulverised coal through pipes to the burner of a boiler furnace is restricted to a maximum limit of about 300° C to avoid the___________________?

A. Requirement of large volume combustion chamber
B. Risk of explosion
C. Chances of clinker formation
D. Incomplete combustion of coal

Read More Temperature of preheated air used for the transportation of pulverised coal through pipes to the burner of a boiler furnace is restricted to a maximum limit of about 300° C to avoid the___________________?
Fuels and Combustion

Lurgi gasifier (high pressure gasifier) as compared to Kopper Totzek gasifier (atmospheric pressure gasifier) produces __________________?

Lurgi gasifier (high pressure gasifier) as compared to Kopper Totzek gasifier (atmospheric pressure gasifier) produces __________________?

A. Higher amount of methane
B. Lower amount of hydrogen
C. Both A. and B.
D. Higher amount of both methane and hydrogen

Read More Lurgi gasifier (high pressure gasifier) as compared to Kopper Totzek gasifier (atmospheric pressure gasifier) produces __________________?
CHEMICAL ENGINEERING | Fuels and Combustion

Low temperature oxidation of stored coal results in the

Question: Low temperature oxidation of stored coal results in the
[A].

decrease in its caking power & calorific value.
[B].
decrease in its carbon & hydrogen content.
[C].
increase in its oxygen content.
[D].
all (a), (b) and (a).

Answer: Option D

Explanation:

No answer description available for this question.

Read More Low temperature oxidation of stored coal results in the
Fuels and Combustion

High rate of heating of coke ovens____________________?

High rate of heating of coke ovens____________________?

A. May damage its walls due to abrupt excessive swelling of coal
B. Produces larger size coke
C. Increases the time of carbonisation
D. None of these

Read More High rate of heating of coke ovens____________________?
CHEMICAL ENGINEERING | Fuels and Combustion

Caking coal is desirable for

Question: Caking coal is desirable for
[A].

burning on travelling grate.
[B].
coke making.
[C].
burning on firebars.
[D].
all (a), (b) and (c).

Answer: Option B

Explanation:

No answer description available for this question.

Read More Caking coal is desirable for

Similar Posts