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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

  3. Good quality kerosene should have

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

  5. The most suitable solvent for deasphalting vacuum residue is

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

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

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

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

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

  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

  13. Thermofer catalytic cracking process is a __________ process.

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

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

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

  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

  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