Gum formation in stored gasoline is mainly due to the
A. Alkylation of unsaturates
B. Presence of sulphur
C. Oxidation & polymerisation of unsaturates
D. Higher aromatic content
Answer: Option B
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Related Questions on Petroleum Refinery Engineering
Aniline point test of an oil qualitatively indicates the __________ content of an oil.
A. Paraffin
B. Olefin
C. Aromatic
D. Naphthene
C is the right
C is right option.
During storage, some classes of hydrocarbons in gasoline blends, particularly olefins and diolefins, are able to slowly react, at ambient temperatures, with the oxygen in the air. The formed oxidation products are responsible for the formation of an insoluble solid, commonly called deposits or gums.
Gum formation is because of oxidation of olefins which form a insoluble solid called gum. Thus, Gum formation is because of the oxidation and polymerization of olefins (unsaturates).
No C is right