PTU B.Tech Petroleum Engineering 6th Semester May 2019 74037 PETROLEUM REFINING II Question Papers

Roll No. :

Total No. of Pages : 02

Total No. of Questions : 09

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B.Tech.(Petroleum Refinary Engineering) (2013 Batch) (Sem.-6)

PETROLEUM REFINING – II

Subject Code : BTPC-601

M.Code: 74037

Time: 3 Hrs. Max. Marks : 60

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INSTRUCTIONS TO CANDIDATES :

1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students has to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students has to attempt any TWO questions.

SECTION-A

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Q1. Write briefly :

1. Give the conditions for thermal cracking.
2. Write the octane number of i-Pentane.
3. Comment on process intensification in the FCCR.
4. Write down Various Catalytic Reforming Processes.

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5. What are cyclic fixed bed reformers?
6. What is Reforming LHSV range?
7. What are the Advantages Of Bimetallic And Multimetallic Catalyst Over Monometallic Catalyst?
8. Why the naphtha stream after absorption and phase separation enters a stripping unit?
9. Why is make up AlCl3 required in the isomerisation process?

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10. Comment upon the HCl distribution between light ends and bottom liquid product in the flash drum.

SECTION-B

Q2. In the petroleum industry large hydrocarbons from the distillation of crude oil are often cracked to split them into smaller bits. Suggest reasons why this is done.

Q3. a) Give the conditions for catalytic cracking.

b) Briefly, what happens to an individual alkane molecule as it splits into smaller bits during catalytic cracking?

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Q4. Define HF process of alkylation with flowsheet.

Q5. Explain delayed coking with flowsheet.

Q6. Why desulphurization is necessary?

SECTION-C

Q7. Write note on various additives in petroleum processes.

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Q8. What are sources of butimen? Draw the chemical structure of asphalt and write a detailed note on types of asphalt.

Q9. Draw flowsheet of isomerisation of n- paraffin and explain in detail.

NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.

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