Hydrofining is the most recent and effective method for the____________________ ?
Correct answer: A. Removal of sulphur
- A. Removal of sulphur
- B. Improvement of smoke point
- C. Reduction of breathing loss
- D. Improvement of viscosity index
Explanation
Hydrofining passes the petroleum fraction over a catalyst in the presence of hydrogen, converting sulphur compounds into hydrogen sulphide for removal. It can also improve other properties, but sulphur removal is its chief use here.
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