JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech IV PETROLEUM REFINERY ENGINEERING Previous Question Paper (May/June - 2019 - R15)
Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 10 marks and may have a, b, c as sub questions.
Part A
Write a short note on the composition of crude oil.
Answer
Crude oil is a complex mixture consisting primarily of hydrocarbons, ranging from light gases to heavy solids. It typically contains 83-87% carbon, 10-14% hydrogen, and minor amounts of sulfur, nitrogen, oxygen, and trace metals like vanadium and nickel.
Define Cloud point and pour point.
Answer
Cloud point is the temperature at which wax crystals first become visible in a petroleum product when cooled under specified conditions. Pour point is the lowest temperature at which the oil will continue to flow when cooled under prescribed conditions.
Write Dewaxing of lube oil.
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Write a short note on the jet fuels.
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Write short note on Hydrovis breaking.
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Write short note on thermal cracking process.
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Give the purpose of clay treatment in petroleum processing.
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Write short note on Composition of vacuum tower bottoms.
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Write short Alkylation unit feed stocks.
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How atmospheric pollution in refineries controlled?
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Part B
Discuss the effect of globalization in Indian refining industries.
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Discuss the various methods of evolution of petroleum.
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Explain in detail about the crude distillation curves.
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Discuss the various concepts involved in on origin and formation of petroleum.
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Write a detail note on the following: a) Wax b) Vaccum distillation c) Distillate fuels.
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Explain Atmospheric Distillation column (ADU) process with the boiling point Ranges of different products.
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Explain the naptha and gas cracking process for the production of Olefins.
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Describe in brief the various feedstocks used for the manufacture of petrochemicals.
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Discuss the process of delayed coking in detail.
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Describe the process of catalytic cracking fluidized bed.
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Explain the catalytic reforming process in detail with neat labelled diagram.
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Discuss in detail about the residue hydroprocessing.
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Describe the process of aromatics extraction with neat diagram.
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Explain in detail the isomerization processes.
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Describe a process of sulfuric acid alkylation processes with neat diagram.
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Explain in detail the autorefrigeration sulfuric acid alkylation unit.
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Describe a process of solid phosphoric acid polymerization unit.
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Discuss a detail about the sulfur recovery processes.
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