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2003 Course Catalysis Technology & Fluidization Eng.

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Total No. of Questions : 8] [Total No. of Pages : 2 [3664] - 331 P 1326 B.E. (Petrochemical) CATALYSIS TECHNOLOGY & FLUIDIZATION ENGINEERING (2003 Course) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates: 1) Answer any 3 questions from each section. 2) Answers to the two sections should be written in separate answer books. 3) Neat diagrams must be drawn wherever necessary. 4) Figures to the right indicate full marks. 5) Use of logarithmic tables, slide rule, Mollier charts, electronic pocket calculator and steam tables is allowed. 6) Assume suitable data, if necessary. SECTION - I Q1) a) b) c) Q2) a) b) c) Q3) a) b) c) Q4) a) b) c) Differentiate between physical adsorption and chemisorption. [6] With help of neat diagram explain how catalyst changes reaction pathways. [6] Write a short note on hetero - homogeneous catalysis. [4] Derive Langmuir Adsorption Theorem after stating important assumptions. [6] What is coke formation? How can we get - rid of it. [4] Highlight difference between LH model and Ridel model for catalytic reactions. [6] What are the desired properties of an industrial catalyst - explain in brief. [6] Explain various characterization methods of catalysts. [6] What are promoters? Discuss its importance in catalysis. [4] With help of neat sketch discuss manufacture of ammonia - highlight on the reactor and catalysts involved. [8] Catalysts is very important to refineries and petrochemical industries explain with help of suitable examples. [6] Write short note on Zeolites and highlight its stereo-selectivity. [4] P.T.O.

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