Fertiliser plants get their N2 requirements (A) By fractionation of liquefied air (B) By dissociating oxides of nitrogen (C) From coal gas (coke oven gas) (D) From producer gas

Fertiliser plants get their N2 requirements
(A) By fractionation of liquefied air
(B) By dissociating oxides of nitrogen
(C) From coal gas (coke oven gas)
(D) From producer gas
by

1 Answer

Answer :

(A) By fractionation of liquefied air
by

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In high temperature carbonisation of coal compared to low temperature carbonisation (A) Yield of ammonia is less (B) Aromatic content of tar is low (C) H2 content in the coke oven gas is more (D) Calorific value of the coke oven gas is lower

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Last Answer : (C) H2 content in the coke oven gas is more

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Last Answer : (A) Natural gas as a source of hydrogen

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Last Answer : (B) Gasify coal to get hydrogen from coal gas

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Last Answer : (C) Gasified

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Last Answer : (B) Takes 2-3 days for coking of coal but requires no external fuel for heating

Prime coking coal is always blended with medium or non- coking coal before carbonisation (A) To check against its excessive swelling during heating, which may exert high pressure and damage coke oven walls (B) Because, it alone produces unreactive coke (C) Both (A) and (B) (D) Neither (A) nor (B)

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