Coke oven gas is stripped of its H2S and mercaptans content by_________________?
Correct answer: B. Adsorption on bog iron bed
- A. Absorption in wash oil
- B. Adsorption on bog iron bed
- C. Bubbling it through dilute sulphuric acid
- D. Adsorption on silica gel
Explanation
H₂S and mercaptans in coke-oven gas are removed by the oxide purification process, using hydrated ferric oxide or bog iron ore as the adsorbent. Acid washing and silica gel are not the usual treatment for these sulphur compounds.
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