Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 8th Sem Old 180501 Chemical Reaction Engineering Ii Previous Question Paper
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VIII (OLD) EXAMINATION ? WINTER 2018
Subject Code: 180501 Date: 26/11/2018
Subject Name: Chemical Reaction Engineering -II
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a)
Define E, F, & C curves and derive relation between them.
07
(b)
Discuss with diagram various contacting pattern in two phase system.
07
Q.2 (a)
A pulse input to a vessel gives the results shown in below figure:
(1) Check the material balance with the tracer curve to see whether the results are
consistent.
(2) If the result is consistent, determine mean residence time, volume of reactor V and
sketch the E curve.
07
(b)
Derive and discuss dispersion model for non-ideal flow
07
OR
(b)
Experimental response measurement on a continuous flow tubular reactor gives the
following information for a pulse input.
Time (min) 1 3 5 7 9 11 13 15
Concentration 0 4 6 8 10 7 3 0
Find the variance and dispersion number.
07
Q.3 (a)
Explain linear and non- linear process with examples.
07
(b)
Discuss various kinetic regimes for Mass transfer and reaction for fluid-fluid reactions.
07
OR
Q.3 (a)
Derive the rate equation for straight mass transfer (Absorption) of A in fluid-fluid
reaction.
07
(b)
Derive rate expression for fast fluid-fluid reactions.
07
Q.4 (a)
Discuss about Physical adsorption and Chemisorption.
07
(b)
Write a short note on ?Determination of Surface area for catalysts?.
07
OR
Q.4 (a)
Define with suitable examples,
1) Promoter, 2) Inhibitor, 3) Carrier, 4) Accelerator, 5) Activity, 6) Coking/fouling
07
(b)
Discuss different parameters which are useful for determining rate controlling step.
07
Q.5 (a)
Discuss in brief about slurry reaction kinetics.
07
(b)
What is effectiveness factor? Derive a relationship between effectiveness factor and
Thiele Modulus for first order reaction.
07
OR
Q.5 (a)
Discuss various Catalytic reactors used in Industry.
07
(b)
Describe with neat sketch the fixed bed reactor and fluidized bed reactor.
07
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This post was last modified on 20 February 2020