In the 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

A coal gasifier opearating at 20 atm. (e.g. Lugri gasifier) as compared to one operating at atmospheric pressure (e.g. Kopper-Totzek or Winkler gasifier) will produce a gas having

A

Higher methane content and thus higher calorific value

B

Higher carbon monoxide content

C

Lower carbon dioxide content

D

None of these

Lurgi coal gasifier is a pressurised __________ bed reactor.

A

Moving

B

Fixed

C

Fluidised

D

Entrained

In Lurgi coal gasifier,

A

Coking coals cannot be used

B

Low carbon conversion efficiency is achieved

C

Entrainment of solids is higher

D

Larger quantity of coal can be processed

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

The tar content of the product gas in downdraft gasifier is _______ updraft gasifier.

A

equal to

B

less than

C

greater than

D

cleaner than

Gas yield in the Kopper-Totzek coal gasifier is about __________ Nm³/ton coal (ash = 35%).

A

150

B

1500

C

3500

D

5000

Weight of the coal is 2g and after heating the coal sample, the weight of the coal is 1.82g. What is the % of the moisture in coal?

A

20%

B

9%

C

10%

D

30%

Consider the following statements relating to Coal India Limited:1. It is designated as a 'Maha Ratna'company under the Ministry of Coal.2. It is the single largest coal producing company in the world.3. The Headquarters of Coal India Limited is located at Ranchi Jharkhand.
Which of the statements given above is/are correct?

A

1 only

B

1 and 2only

C

2 and 3 only

D

1, 2 and 3

An O.C. mine requires 16 blocks of overburden of 3000 te each to mine 4 blocks of coal of 2000 te each. The mining cost of both overburden and coal is Rs. 50 per tonne. The cost of transportation of overburden to dump areas is Rs. 50 per tonne. Coal transportation cost to the selling point is Rs. 75 per tonne. The price of coal is Rs. 800 per tonne, If the royalty and tax to the state is Rs. 50 per tonne, the nominal profit in rupees is

A

2,00,000

B

20,00,000

C

30,00,000

D

50,00,000

In the Lurgi coal gasifier

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