Answers to Issue 70 of Refining Knowledge
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Answers to Issue 70: 1. High 2. Decomposition, aromatization 4. 3. Static pressure difference, pneumatic force 4. A\B 5. C 6. A 7. B\A 8. A 9. A 10. A
8. The greater the depth of catalytic cracking reaction, the more recycled oil there is (). A. Increase B. Decrease C. Remain unchanged. 10. If the catalytic reaction time is too long, the yield of light oil ( ) A. Increases B. Decreases C. Remains unchanged. Hello, study with dedication; the answers to questions 8 and 10 should both be B. This has been corrected.
I agree with moderator Chengkang’s view: if the degree of reaction increases, the re-refining will decrease. An excessively long reaction time results in the generation of a large amount of gaseous components, leading to a decrease in the yield of light oil.