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2003 Course Petrochemical Processes

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Total No. of Questions : 8] P1312 [Total No. of Pages : 2 [3864]-362 B.E. (Petrochemical Engineering) PETROCHEMICAL PROCESSES (2003 Course) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates : 1) Answers any 3 questions from each section. 2) Answers to the two sections should be written in separate books. 3) Neat diagrams must be drawn wherever necessary. 4) Figures to the right indicate full marks. SECTION - I Q1) a) b) Q2) a) b) Q3) a) b) Describe with flow sheet the hydrodealkilation process for conversion of toluene to benzene. [12] Mention applications of acrylonitrile and isoprene. [4] Describe the process of steam reforming for production of hydrogen and detail out PSA cycle. [14] Mention end uses of butadiene and propylene. [4] Describe with flow sheet the oxidation process for conversion of cumene to acetone. Mention applications of acetone. [12] Mention end uses of isopropanol and ethylene glycol. [4] Q4) a) Describe with flow sheet the oxidation process for conversion of methanol to formaldehyde. [12] b) Mention health and handling precautions and applications of acetic anhydride. [4] P.T.O. SECTION - II Q5) a) Discuss in details about Molecular weight distribution in polymers. What are the factors which affect Molecular weight distribution? [6] b) Compare different techniques of polymerization with examples. [6] c) Explain step and chain polymerization with examples. [6] Q6) a) Describe with flow sheet the Mitsubishi Gas Chemical Process for direct extraction of m-xylene. [12] b) Mention health and handling precautions and applications of acetic anhydride. [4] Q7) a) Describe the low pressure Ziegler process with flow sheet for conversion of ethylene to polyethylene. [12] b) Mention end uses of isopropanol and ethylene glycol. Q8) Write a short note on following (any four) : a) Inhibition of Gas Hydrates. b) Gas Hydrate as novel energy source. c) Advantages and disadvantages of Gas hydrates. d) Major challenges associated with Gas Hydrates. e) Different structures of Gas Hydrates. f) Gas hydrates as cause of Tsunamis. rrrr [3864]-362 -2- [4] [16]

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