Q.1
14 Marks(a)
What is the role of crude oil in Indian Economy?
(b)
Give classification of crude oil.
(c)
Discuss ASTM methodology for petroleum fraction.
Gujarat Technological UniversitySummer 2025 examination
GTU 2180502 Petroleum Refining & Petrochemicals Summer 2025 Question Paper & PDF
B.E. · Chemical Engineering · Semester 8 · Subject code 2180502
- Total
- 70 marks
- To pass
- 23 marks (33%)
- Duration
- 2.5 Hours 10:30 PM – 1:00 PM
- Questions
- 5 with internal choice
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Q.2
14 Marks(a)
Define the following terms:
i)Octane number
ii)Flash point
iii)Smoke point
(b)
Explain in detail:
Atmospheric Distillation Unitand Vacuum Distillation Unit
(c)
Discuss: Various additives for petrol
OR
(c)
List out different methods for treatment of Lube oil. Discuss any one in detail
Q.3
14 Marks(a)
Write a brief note on delayed coking.
(b)
Write importance of dehydration and desalting of crudes.
(c)
Write short note on various pipe still heaters for crude oil.
OR
(a)
Compare the performances of phenol and furfural for the solvent treatment of lubes.
(b)
Explain Merox sweetening process for gasoline treatment
(c)
Discuss catalytic reforming process with respect to the following points: Objective, feedstock, catalyst used, Major reactions
Q.4
14 Marks(a)
Elaborate Visbreaking
(b)
Discuss various routes for the production of Methanol
(c)
Explain with neat flow diagram: Manufacturing process of ethylene dichloride
OR
(a)
Explain cracking and list out properties of cracked products.
(b)
Mention various petrochemicals obtain from Ethylene.
(c)
Explain with neat flow diagram: Manufacturing process of vinyl chloride monomer (VCM)
Q.5
14 Marks(a)
Define Properties and uses of LDPE
(b)
Discuss major engineering problems associated with manufacturing process of Phthalic anhydride.
(c)
Discuss in brief about the petrochemicals obtained from Acrylonitrile.
OR
(a)
Explain in brief: BTX separation
(b)
Write uses and major properties of High-Density Polyethylene and Low-Density Polyethylene.
(c)
Explain with flow diagram: Manufacturing process of Formaldehyde from Methanol
More Petroleum Refining & Petrochemicals papers
Questions repeat across sessions. Working through two or three papers shows you which topics GTU asks most.
Other Semester 8 subjects
BE Chemical
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About this paper
Official Gujarat Technological University (GTU) examination paper for Petroleum Refining & Petrochemicals (Summer 2025, B.E. · Chemical Engineering, Sem 8). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.
Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.