Naphthalene is removed from coke oven gas by________________?
Correct answer: A. Scrubbing with wash oil (a petroleum product)
- A. Scrubbing with wash oil (a petroleum product)
- B. Adsorbing on bog iron bed
- C. Absorbing in vetro-coke solution
- D. None of these
Explanation
Naphthalene is removed from coke-oven gas by absorption in wash oil, a petroleum fraction that dissolves the hydrocarbon vapours. Bog iron is associated with gas purification in other contexts, not the usual naphthalene-removal method.
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