Catalytic cracking compared to thermal cracking of residue of vacuum distillation of crude oil__________________?
Correct answer: A. Gives higher yield of petrol
- A. Gives higher yield of petrol
- B. Lower octane number of petrol
- C. Higher sulphur content in the product
- D. Higher gum forming material in petrol
Explanation
Catalytic cracking converts heavy petroleum fractions into more gasoline-range products and generally gives a higher gasoline yield than thermal cracking. It also usually produces gasoline with a higher octane number, making option a the relevant comparison.
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