Fertiliser plants get their N2 requirements _____________________?
Correct answer: A. By fractionation of liquefied air
- A. By fractionation of liquefied air
- B. By dissociating oxides of nitrogen
- C. From coal gas (coke oven gas)
- D. From producer gas
Explanation
Ammonia synthesis requires nitrogen from air, which can be obtained industrially by fractional distillation of liquefied air. The other gases are possible fuel or gasification sources, not the standard direct nitrogen source.
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