logo

CuriousTab

CuriousTab

Discussion


Home Chemical Engineering Petroleum Refinery Engineering Comments

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


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

  • Correct Answer
  • aqueous solution (10% water) of diethylene glycol. 


  • Petroleum Refinery Engineering problems


    Search Results


    • 1. In catalytic alkylation, higher iso-butane to olefin ratio gives

    • Options
    • A. low final boiling point product
    • B. higher yield
    • C. both (a) and (b)
    • D. neither (a) nor (b)
    • Discuss
    • 2. Pick out the correct statement.

    • Options
    • A. Paraffins have higher octane number than corresponding iso-paraffin.
    • B. Paraffins have lower smoke point than aromatics.
    • C. Suitability of kerosene as a fuel & as an illuminant may be determined by char value test.
    • D. Aviation fuel should have very high cloud point.
    • Discuss
    • 3. Petroleum coke is used mainly .in the

    • Options
    • A. discoloration of yellow glycerine.
    • B. sugar refining.
    • C. manufacture of carbon electrode.
    • D. blast furnace for reduction of iron ore.
    • Discuss
    • 4. Catalyst used in the isomerisation is

    • Options
    • A. aluminium chloride
    • B. alumina
    • C. nickel
    • D. phosphoric acid
    • Discuss
    • 5. Which one of the following processes aims at producing higher yield of gaseous unsaturated hydrocarbons and aromatics like benzene & toluene?

    • Options
    • A. Reforming
    • B. Pyrolysis
    • C. Alkylation
    • D. Hydrocracking
    • Discuss
    • 6. In catalytic cracking process, olefins crack __________ times faster than in thermal cracking process.

    • Options
    • A. 100
    • B. 200-300
    • C. 1000-10000
    • D. 10
    • Discuss
    • 7. Crude petroleum oil is a __________ fuel.

    • Options
    • A. primary
    • B. fossil
    • C. both (a) & (b)
    • D. secondary
    • Discuss
    • 8. Which of the following processes consumes hydrogen?

    • Options
    • A. Fluid catalytic cracking
    • B. Visbreaking
    • C. Propane deasphalting
    • D. None of these
    • Discuss
    • 9. Pick out the wrong statement.

    • Options
    • A. Multigrade lubricating oils have high viscosity index.
    • B. Paraffinic oil has very high viscosity index.
    • C. Naphthenic oil has very low viscosity index.
    • D. High viscosity index means a large change in viscosity with change in temperature.
    • Discuss
    • 10. Crude oil produced by Indian oil fields are predominantly __________ in nature.

    • Options
    • A. paraffinic
    • B. naphthenic
    • C. asphaltic
    • D. mixed base
    • Discuss


    Comments

    There are no comments.

Enter a new Comment