Download SGBAU B-Tech 8th Sem FPOPC Petro Petrochemial Technology VI Question Paper

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Tech. Eighth Semester

11088 : Petrochemical Technology-VI (Special Technology-VI) : 8 PC 01

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Pages : 2

Time : Three Hours Max. Marks : 80

Notes : Due credit will be given to neatness and adequate dimensions.
Assume suitable data wherever necessary.
Diagrams and chemical equations should be given wherever necessary.

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SECTION - I

1. For irreversible exothermic catalytic reaction,

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   ir = k1CNA + k3CNQ — k4CpA

   then prove that;

   ki [k4 — 2ks ] / [kq -2k ] [k k3]

   Here phthalic anhydride is considered as a main product.

   OR

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2. Calculate the value of Cy, Cyq and Cpy at temperature 593, 600 and 643°K.

   Assume : i) residence time = 0.2 second ii) Initial concentration of Cy;, Cyo =1%.

3. How to achieved the optimum operating conditions for phthalic anhydride synthesis?

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   Discuss it by considering some true values of temperature and time. Explain by graphical method.

   OR

4. Prove that, 'Adsorption is one of the efficient technique for separation of C, fraction into individual constituents'.

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5. What are the important process parameter to be considered in steam cracking process?

   Discuss in brief.

   OR

6. Discuss following in brief:

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   1. Importance of simplified reaction scheme in mathematical modeling.
   2. Role of splitter in steam cracking.
   3. Best feed for ethylene and acetylene synthesis by steam cracking.

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7. Give critical account of coal gasification. What are the different processes available for coal gasification? Give comparative data with respect to

   1. Type of feed
   2. Operating conditions
   3. Product pattern for all type of processes

   OR

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8. Feed for shift convertor having following composition;

   H> =34.9mole, CO =7.2mole, CO;5 =5.4mole,

   90% conversion of CO is required. Select the best operating temperature from following.

   1250-7°K (K =65.7)

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   1048°K (K =1.192)

   1231-95°K (K = 47.685)

9. Calculate the yield in casc of reversible exothermic reaction for time 0.5 minute at temperature 80, 90 and 100°C. Assume AG =-10,000]/ mole at 298°K.

   AH =-40,000J / mole (It is constant over the temp. range 273-573°K)

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   K= ](,9e~60,000 /RT min~ 1

   OR

10. If A==—Bis areversible exothermic reaction. The prove that 'for each reaction time there is an individual maxima’.

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11. What are the factors which affect the operating conditions for ammonia synthesis?

    Discuss in brief. Which one is the best suitable operating conditions for ammonia synthesis to optimize the yield.

    OR

12. Name the various techniques available for acetylene synthesis with basic principle involved. Discuss any one in brief:

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