In Lurgi coal gasifier,

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 & B

D

Higher amount of both methane and hydrogen

In the Lurgi coal gasifier

A

Coking coals cannot be used

B

Low carbon conversion efficiency is achieved

C

Entrainment of solids is higher

D

Large quantity of coal can be processed

Lurgi coal gasifier is a pressurised __________ bed reactor.

A

Moving

B

Fixed

C

Fluidised

D

Entrained

Kopper-Totzek coal gasifier (installed in a coal based nitrogeneous fertiliser plant) employs a/an __________ bed gasifier.

A

Entrained

B

Moving

C

Fixed

D

Fluidised

Main constituents of purified Lurgi gas are

A

H₂, C_mH_n & CO₂

B

CO, H₂ & CH₄

C

CO₂, O₂ & CO

D

N₂, H₂ & CO₂

Kopper-Totzek coal gasifier

A

Can give ammonia synthesis gas (H₂ + N₂)

B

Is a moving bed reactor

C

Cannot use coking coal

D

Operate at very high pressure

Calorific value of coal middling generated in coal washeries during washing of coal may be around __________ Kcal/kg.

A

1000

B

4000

C

6000

D

8000

In a thermal power plant, coal from the coal handling plant is moved to the boiler bunker through a

A

Belt conveyor

B

Bucket conveyor

C

Fork lift truck

D

Overhead crane

Coal mines drainage waste water (acidic in nature) results from the earth's water percolating through the voids created in coal bed during mining. This polluted water which either drains out naturally to water courses or are removed before starting the mining is

A

Neutralised by alkali treatment

B

Left as such without any treatment

C

Diluted with fresh water to reduce its acidity

D

None of these

The Appalachian coal fields, one of the important coal fields in the world, are located in ________

A

China

B

Great Britain

C

U.S.A.

D

Russia

In Lurgi coal gasifier,

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