Petroleum Refinery Engineering
High aniline point of a petrofuel (say diesel) indicates that

It has a very low diesel index
It is highly aromatic in nature
It is highly paraffinic in nature
Its ignition quality is very poor

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Petroleum Refinery Engineering
Mercaptans are

Added in LPG cylinders to detect gas leakage by its smell
Undesirable in petrol, as they reduce its octane number
All of these
Low boiling sulphur compounds

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