Desulphurisation of petrol is done in a _____________________?
Correct answer: B. Rotating disc extractor
- A. Bollman extractor
- B. Rotating disc extractor
- C. Packed extraction column
- D. Plate type extraction column
Explanation
Petrol desulphurisation by solvent extraction uses a rotating disc extractor, which provides repeated liquid-liquid contact and dispersion for transferring sulphur compounds into the extracting phase. Bollman extractors are mainly associated with solid-liquid extraction of oilseeds.
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