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Chemical Engineering - Petroleum Refinery Engineering - Discussion

Discussion Forum : Petroleum Refinery Engineering - Section 2 (Q.No. 15)
Petroleum Refinery Engineering
15.
Pick out the wrong statement.
Higher temperature is employed in visbreaking than in thermal cracking.
Pyrolysis is a mild thermal cracking process.
Lead suceptibility of petrol produced by catalytic process is more than that produced by thermal cracking.
Operating pressure and temperature in thermal cracking process is more than that in catalytic cracking process.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
3 comments Page 1 of 1.
Richmond FOFIE said:   7 years ago
Pyrolysis is not a mild thermal cracking process. The temperature of about 750-900 degree Celsius Is used.

Option B is also a wrong statement I guess.

Thank you.
Sanjoy karmakar said:   4 years ago
Option B is incorrect.

So the answer is B.
Chayanika said:   2 years ago
I agree Option A is correct.
Visbreaking upto-450°C.
Thermal cracking upto 750°C.
Pyrolysis up to 800°C ( also called simple thermal cracking or mild thermal cracking).
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