pddcom2005 - BIRLA INSTITUTE OF TECHNOLOGY & SCIENCE,...

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Unformatted text preview: BIRLA INSTITUTE OF TECHNOLOGY & SCIENCE, PILANI SEMESTER-II, 2004-2005 PROCESS DESIGN DECISIONS (CHE C332) COMPREHENSIVE EXAMINATION 09-05-2005 Max. Marks: 40 Monday Time: 3-6 p.m. Instructor-in-charge: Prof. B.V.Babu Venue: Room No. 2206 & 2207 Instructions:1. Make suitable assumptions if necessary by clearly stating them. 2. All the notations and abbreviations have conventional meaning. 3. Answer to the point. Q1. (10 x 0.5 = 5 Marks) 1.1. If the light ends contaminate the product they must be removed. The option is (a) increasing the pressure of the feed stream (b) using the partial condenser on the product column (c) removing the heavy ends in a pasteurization section in the product column (d) using a stabilizer column to separate heavy ends 1.2. Mention any two options when the phase split is not easily obtained in level-3. 1.3. Vapor recovery system comes under which Hierarchy of decision? (a) Input-output structure (b) Recycle structure (c) Batch versus continuous (d) General structure 1.4. To eliminate a heat exchanger from a network (a) break a loop that includes the highest load (b) break a loop that includes the smallest load (c) break a loop that includes the intermediate load (d) do not break the loop 1.5. The limitation of DCFROR ____________ . (a) It is based on explicit solution (b) It is based on trial and error solution (c) Depreciation is not considered (d) none 1.6. List down any two of the general heuristics for column sequencing of distillation....
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This note was uploaded on 02/29/2012 for the course CHEMICAL 332 taught by Professor Profb.v.babu during the Spring '09 term at Birla Institute of Technology & Science.

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pddcom2005 - BIRLA INSTITUTE OF TECHNOLOGY & SCIENCE,...

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