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- Question
In hydrofining catalytic desulphurisation process for sweetening of petroleum products, use of hydrogen
Options- A. enhances the desulphurisation process.
- B. minimises coke formation.
- C. both (a) and (b).
- D. neither (a) nor (b).
- Correct Answer
- both (a) and (b).
- 1. The characterisation factor of a crude oil is calculated as 12.5. It means that; it is
Options- A. paraffinic
- B. naphthenic
- C. intermediate
- D. none of these Discuss
- 2. The catalytic cracking of heavier petroleum fraction is done to produce mainly
Options- A. gasoline
- B. asphalt
- C. diesel oil
- D. tar Discuss
- 3. Operating temperature and pressure in catalytic reforming is about
Options- A. 1-5 Kgf/cm2 & 200°C.
- B. 15-45 Kgf/cm2 & 450-550°C.
- C. 50 - 75 kgf/cm2 & 600 - 800°C.
- D. 5-10 kgf/cm2 & 150 - 250°C. Discuss
- 4. Choose the correct statement.
Options- A. Octane number of i-octane is zero.
- B. Octane number of paraffins increases with increasing number of carbon atoms.
- C. Branched chain paraffins have higher octane number than straight chain paraffins with same number of carbon atoms.
- D. The aromatics have lower octane number than naphthenes with same number of carbon atoms. Discuss
- 5. Petroleum is believed to have originated from __________ sources.
Options- A. vegetable
- B. animal
- C. both (a) and (b)
- D. neither (a) nor (b) Discuss
- 6. The doctor's solution comprises of sodium plumbite in
Options- A. alcohal
- B. water
- C. aqueous caustic soda
- D. soda ash Discuss
- 7. Deoiling is the process of removal of oil from wax. It is done by the __________ process.
Options- A. solvent extraction
- B. sweating
- C. resettling
- D. all (a), (b) & (c) Discuss
- 8. Hydrofining is the most recent and effective method for the
Options- A. removal of sulphur.
- B. improvement of smoke point.
- C. reduction of breathing loss.
- D. improvement of viscosity index. Discuss
- 9. The reservoir rock containing petroleum has
Options- A. low porosity
- B. high permeability
- C. high porosity
- D. both (b) and (c) Discuss
- 10. Pick out the wrong statement.
Options- A. Aromatics have higher specific gravity than paraffins,
- B. Gross calorific value (GCV) of petrofuels is equal to (12400 - 2100 ?2) where, ? is the specific gravity of the fuel at 15.5°C.
- C. Heavier petrofuels have higher GCV on weight basis (i.e., Kcal/kg) but lower GCV on volume basis (i.e., Kcal/litre).
- D. Higher specific gravity of petrofuels means higher C/H ratio. Discuss
Petroleum Refinery Engineering problems
Search Results
Correct Answer: paraffinic
Correct Answer: diesel oil
Correct Answer: 15-45 Kgf/cm2 & 450-550°C.
Correct Answer: Branched chain paraffins have higher octane number than straight chain paraffins with same number of carbon atoms.
Correct Answer: both (a) and (b)
Correct Answer: aqueous caustic soda
Correct Answer: all (a), (b) & (c)
Correct Answer: removal of sulphur.
Correct Answer: both (b) and (c)
Correct Answer: Heavier petrofuels have higher GCV on weight basis (i.e., Kcal/kg) but lower GCV on volume basis (i.e., Kcal/litre).
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