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Chemical Engineering :: Petroleum Refinery Engineering

  1. Which of the following reactions is undesirable in the production of catalytically reformed gasoline ?

  2. A.
    Dehydrogenation of naphthene
    B.
    Dehydrogenation of lower paraffins
    C.
    Dehydrocyclisation of higher paraffins
    D.
    Isomerisation of paraffins

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  3. Good quality kerosene should have

  4. A.
    low smoke point.
    B.
    high smoke point.
    C.
    high aromatics content.
    D.
    low paraffins content.

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  5. The most suitable solvent for deasphalting vacuum residue is

  6. A.
    propane
    B.
    methyl ethyl ketone
    C.
    doctor's solution
    D.
    methanol amine

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  7. Paraffins are desirable in lubricating oil, as it has got high

  8. A.
    viscosity
    B.
    viscosity index
    C.
    smoke point
    D.
    pour point

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  9. Cetane number of a diesel fuel is the measure of its

  10. A.
    ignition delay
    B.
    smoke point
    C.
    viscosity
    D.
    oxidation stability

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  11. Maximum viscosity of tar/PCM/fuel oil for easy and efficient atomisation in conventional burner is __________ centistokes (or 100 Redwood I seconds).

  12. A.
    5
    B.
    25
    C.
    50
    D.
    100

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  13. Thermofer catalytic cracking process is a __________ process.

  14. A.
    fixed bed
    B.
    moving bed
    C.
    fluidised bed
    D.
    non-catalytic

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  15. 1 centistoke is equal to __________ Redwood I seconds.

  16. A.
    1
    B.
    4.08
    C.
    0.408
    D.
    40.8

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  17. Higher boiling fractions like atmospheric residue is distilled under vacuum at low temperature because at high temperature, there is a tendency of the predominance of

  18. A.
    thermal cracking
    B.
    gum formation
    C.
    coking
    D.
    discoloration

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  19. Which is the most ideal feed stock for 'coking' process used for the manufacture of petroleum coke ?

  20. A.
    Naphtha
    B.
    Vacuum residue
    C.
    Light gas oil
    D.
    Diesel

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