Chemical Engineering - Petroleum Refinery Engineering

46.
Which of the following is not an important property of fuel oil/furnace oil ?
Sulphur content
Viscosity
Aniline point
Flash point
Answer: Option
Explanation:
No answer description is available. Let's discuss.

47.
Which of the followingis desirable in petrol (gasoline) but undesirable in kerosene ?
Paraffins
Aromatics
Mercaptans
Naphthenic acid
Answer: Option
Explanation:
No answer description is available. Let's discuss.

48.
Extractor temperature is maintained at -20°C in Edeleanu process to reduce the __________ of kerosene.
smoke point
paraffins
aromatics
naphthenes
Answer: Option
Explanation:

The Edeleanu process is a type of extraction process in the petroleum refining industry, whereby liquid sulfur dioxide is used to extract aromatics from kerosene pool, liquid SO2 selectively dissolves the aromatics leaving behind the low aromatic content kerosene as the finished product.

It is named after the Romanian chemist of Jewish origin Lazar Edeleanu. The aromatic extract is then separated from SO2 through rectification and SO2 recirculation. Temperature is maintained at -20°C.


49.
Cracking is
an exothermic reaction.
an endothermic reaction.
favoured at very low temperature.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

50.
The most important property for a jet fuel is its
viscosity
freezing point
calorific value
flash point
Answer: Option
Explanation:
No answer description is available. Let's discuss.