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Chemical Engineering :: Petroleum Refinery Engineering

  1. Crude oils containing more than __________ kg of total salts (expressed in terms of NaCl) per thousand barrel is called a 'salty crude'.

  2. A.
    1
    B.
    5
    C.
    15
    D.
    25

  3. Reid vapour pressure of gasoline is the measure of its

  4. A.
    pour point
    B.
    cloud point
    C.
    vapour locking tendency
    D.
    carbon residue

  5. Pick out the correct statement about catalytic polymerisation.

  6. A.
    H2SO4 polymerisation process gives gasoline rich in unsaturates.
    B.
    In H2SO4 polymerisation, H3PO4 is always used with 2% steam to prevent meta & ortho H3PO4 formation, which are inactive.
    C.
    both (a) and (b)
    D.
    neither (a) nor (b)

  7. High aniline point of diesel indicates that, it

  8. A.
    is highly aromatic.
    B.
    has a large ignition delay.
    C.
    is highly paraffinic.
    D.
    has a low diesel index.

  9. Boiling range of motor gasoline is an indication of the

  10. A.
    case of starting
    B.
    rate of acceleration
    C.
    vapour locking tendency
    D.
    all (a), (b) and (c)

  11. Performance number of a liquid fuel is related to its

  12. A.
    wax content
    B.
    spontaneous ignition temperature
    C.
    knocking tendency
    D.
    sulphur content

  13. Naphtha yield in straight run distillation of crude oil may be about __________ percent.

  14. A.
    2
    B.
    6
    C.
    12
    D.
    18

  15. Mercapsol and Unisol processes are meant for the

  16. A.
    dearomatisation of kerosene
    B.
    removal of mercaptans
    C.
    dewaxing
    D.
    decoloration

  17. Solvent used in the Udex (glycol) extraction process for removal of light aromatics from cracked naphtha is

  18. A.
    propane.
    B.
    diethylene glycol.
    C.
    aqueous solution (10% water) of diethylene glycol.
    D.
    methyl ethyl ketone (MEK).

  19. Which of the following is the most suitable feed for platforming process (reforming) ?

  20. A.
    Olefinic hydrocarbon
    B.
    Naphtha
    C.
    Fuel oil
    D.
    Atmospheric residue