Lurgi coal gasifier is a pressurised ______________ bed reactor?
Lurgi coal gasifier is a pressurised ______________ bed reactor?
A. Moving
B. Fixed
C. Fluidised
D. Entrained
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Coking coals are invariably
Question: Coking coals are invariably
[A].lignites [B].
bituminous coals [C].
semi-anthracites [D].
anthracites Answer: Option B
Explanation:
No answer description available for this question.
Coal tar (produced by high temperature carbonisation) is the main source of
Question: Coal tar (produced by high temperature carbonisation) is the main source of
[A].aromatic compounds [B].
alphatic compounds [C].
paraffins [D].
olefins Answer: Option A
Explanation:
No answer description available for this question.
A carbonaceous fuel (containing no H2 or hydrocarbons) is burnt and the resulting flue gas contains 21% CO2. It means that
Question: A carbonaceous fuel (containing no H2 or hydrocarbons) is burnt and the resulting flue gas contains 21% CO2. It means that
[A].21% excess air has been used for combustion. [B].
21% excess oxygen has been used for combustion. [C].
complete combustion of fuel has taken place. [D].
no excess air has been used for combustion. Answer: Option C
Explanation:
No answer description available for this question.
Caking index of a coal is a measure of its
Question: Caking index of a coal is a measure of its
[A].abradability [B].
reactivity [C].
agglutinating (binding) properties [D].
porosity Answer: Option C
Explanation:
No answer description available for this question.
With increase in calorific value of fuels, their adiabatic flame temperatures
Question: With increase in calorific value of fuels, their adiabatic flame temperatures
[A].increase [B].
decrease [C].
remain unchanged [D].
may increase or decrease ; depends on the quantity of products of combustion Answer: Option D
Explanation:
No answer description available for this question.
Dust content in raw blast furnace gas is about _______________ gm/Nm3; hence it is cleaned to the dust level of about < 10 mg /Nm3 before use?
Dust content in raw blast furnace gas is about _______________ gm/Nm3; hence it is cleaned to the dust level of about < 10 mg /Nm3 before use?A. 15-30
B. 1-2
C. 70-100
D. 150-200