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Which of the following catalyst is used for removing hydrocarbon from gaseous pollutant in combustion unit?

(a) Platinum

(b) Activated alumina

(c) Vanadium

(d) Potassium permanganate

I have been asked this question in an interview.

This question is from Dispersion of Air Pollutants, Contol of Gaseous Pollutants topic in chapter Air Pollution of Environmental Engineering

1 Answer

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Right answer is (b) Activated alumina

For explanation: Activated alumina is used as a catalyst for removing gaseous pollutant called hydrocarbons from the air. The concentration of hydrocarbon emitted from automobiles is 300-1000 mg/l.

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