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2003 Course Novel Separation Processes (Elective) (I)

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Total No. of Questions :12] [Total No. of Pages : 2 P1372 [3764]-396 B.E. PETROCHEMICAL Novel Separation Processes (2003 Course) (Elective) Time :3 Hours] [Max. Marks : 60 Instructions to the candidates: 1) Answer any Three questions from each section. 2) Answers to the two sections should be written in separate books. 3) Neat diagrams must be drawn whereever necessary. 4) Black figures to the right indicate full marks. 5) Use of logarithmic tables,SECTION - I charts, electronic pocket calculator slide rule, Mollier and steam tables is allowed. 6) Assume suitable data, Q1) Attempt the following : if necessary. [18] a) Classify membrane separation processes by giving examples. b) Discuss in brief on : adsorptive bubble separation techniques. c) Explain in brief the selection criterial for chemical engineering separation processes. OR Q2) a) Classify the models for gas separation by membranes. Develop cross flow model for membrane separation processes. State the assumption made. Discuss the solution strategy for different cases. [18] Q3) a) A 9-micron tubular membrane is used to recover salt A From a dilute solution. The solutions to either side dare at 0.028 and 0.004 kmol/m3, with mass transfer coefficients of 3.5 10 -5 a nd2.25 10 -5 m /s respectively. The distribution coefficient is 0.85 and the diffusivity of A in the membrane is 275 10-11m2/s. c P.T.O.

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