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Chemical Engineering :: Petroleum Refinery Engineering

  1. Pyrolysis of kerosene or natural gasoline is done to produce mainly the

  2. A.
    olefins and aromatics
    B.
    lighter paraffins
    C.
    stabilised gasoline
    D.
    diesel

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  3. Which of the following fractions of petroleum contains maximum sulphur ?

  4. A.
    Diesel
    B.
    Gasoline
    C.
    Naphtha
    D.
    Atmospheric residue

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  5. Reforming converts

  6. A.
    olefins into paraffins
    B.
    naphthenes into aromatics
    C.
    naphthenes into olefins.
    D.
    naphthenes into paraffin.

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  7. Percentage of straight run gasoline in a typical crude oil may be around

  8. A.
    6
    B.
    18
    C.
    38
    D.
    52

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  9. Road grade bitumen is produced from vacuum residue by its

  10. A.
    aeration
    B.
    pyrolysis
    C.
    hydrogenation
    D.
    steam reforming

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  11. Liquefied Petroleum Gas (LPG) in domestic use cylinders is in the liquid form. The density of LPG in liquid form is about __________ of that of water (i.e. 1 gm/c.c).

  12. A.
    one fourth
    B.
    one third
    C.
    half
    D.
    one eighth

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  13. Ethyl mercaptan is added to the Doctor negative LPG for facilitating the detection of its leakage (by bad odour) to the extent of about __________ ppm.

  14. A.
    1
    B.
    50
    C.
    5000
    D.
    10000

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  15. CnH2n is the general formula for

  16. A.
    olefins
    B.
    naphthenes
    C.
    both (a) and (b)
    D.
    neither (a) nor (b)

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  17. Natural gas recovered along with crude oil from oil wells is called wet natural gas which has a higher __________ compared to the dry natural gas.

  18. A.
    unsaturated hydrocarbon content
    B.
    calorific value
    C.
    quantity of propane
    D.
    quantity of butane

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  19. Pick out the wrong statement.

  20. A.
    Alkylation produces a larger iso-paraf-fin (having higher octane number) from the reaction of an olefin with smaller iso-paraffin.
    B.
    Catalytic alkylation processes use HF, AlCl3 & H2SO4 as Catalysts.
    C.
    All the alkylation processes use very high temperature (> 1000°C).
    D.
    Gasoline having an octane number of 90 can be produced by alkylation process.

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