Pune University BE Petrochemical Engineering Natural Gas Technology Question Papers

B.E. (Petrochemical Engineering) NATURAL GAS TECHNOLOGY

(2008 Pattern) (Elective – II) (Sem. – I)

Time: 3 Hours]                                                                                              [Max. Marks :100

Instructions to the candidates:

1)            Answer Q.No.1 or 2, 3 or 4, 5 or 6, 7 or 8, 9 or 10,11 or 12.

2)            Answers to the two sections should be written in separate answer books.

3)            Neat diagrams must be drawn wherever necessary.

4)            Assume suitable data, if necessary.

5)            Figures to the right indicate full marks.

6)            Use of logarithmic table slide rule and electronic pocket calculator is allowed.

  SECTION – I  

Q1) a)

Discuss the oil reserves and gas reserves with respect to production

 

and utilization.

[8]

b)

Describe the origin of natural gas.

[8]

  OR  

Q2) a)

Discuss bacterial gas reservoirs.

[8]

b)

Give the Indian Scenario of natural gas and refining.

[8]

Q3) a)

Explain in detail analysis of composition of natural gas.

[8]

b)

Discuss well selection, conditioning and sampling of condensate gas. [6]

c)

Elaborate on heating value of natural gas.

[4]

  OR  

Q4) a)

Discuss the phase diagram of a reservoir fluid.

[8]

b)                                                                                                                                                                                                                                                       Elaborate on estimation of surface tension of liquid hydrocarbon in the natural gas.   [6]

c)                 Draw phase diagrams of a dry gas and a wet gas showing conditions in the reservoir as well as at the surface and describe the same in brief. [4]

 

Elaborate on hydrate structures (diagrams are not necessary). [6]

Q5) a)

b)

c)

Q6) a)

b)

c)

Explain in detail predicting hydrate formation equilibria chart method.

[6]

Write a short note on water content of natural gas.                                     [4]

OR

Discuss kinetics of hydrate formation.                                                           [6]

Explain in detail hydrate prevention.                                                             [6]

Write a short note on hydrate formation during drilling.                            [4]

SECTION – II

 

 

 

Q7) a)

b)

Q8) a)

b)

Explain in detail dehydration of natural gas by absorption.                       [8]

Give different properties of a suitable solvent.                                             [8]

OR

Describe with flow sheet refrigeration cycle by expansion turbine for natural gas.           [8]

Explain in detail removal of nitrogen, helium and mercury from natural gas.         [8]

 

 

 

 

Q9) a)

b)

c)

Q10)a)

b)

c)

Discuss LNG transport chains.                                                                        [6]

Explain with flow sheet natural gas liquefaction using TEALARC process with one pressure level.                                                                                                                     [6]

Write a short note on pipeline transport systems.                                         [6]

OR

Explain in detail construction and working of centrifugal compressor. [6] Elaborate on existing LNG terminal in India.                                                                                      [6]

Discuss safety precautions for natural gas pipeline.                                    [6]

Describe with flow sheet Fisher-Tropsch synthesis process.                     [8]

Q11)a)

b)

Q12)a)

b)

Write a short note on :                                                                                        [8]

i)              Thermal coupling process.

ii)            Oxidative coupling process.

OR

Describe with flow sheet routes for the chemical conversion of methane.

[8]

Write a short note on natural gas storage.                                                      [8]

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