'Absorption with chemical reaction' is involved in the removal of__________________?
Correct answer: C. Carbon dioxide from gaseous stream using alkaline solution
- A. Ammonia from coke oven gas using refrigerated water
- B. Benzol from coke oven gas using solar oil/wash oil
- C. Carbon dioxide from gaseous stream using alkaline solution
- D. Tar from coke oven gas in primary gas coolers using chilled water
Explanation
Carbon dioxide reacts with alkaline absorbents such as sodium hydroxide or potassium carbonate, so its removal combines absorption with a chemical reaction. The other examples are mainly physical absorption or condensation operations.
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