Petroleum Refinery Engineering
In the atmospheric pressure crude distillation, the content of __________ from lighter fraction to heavier ones.

Sulphur decreases
None of these
Nitrogen decreases
Sulphur increases

ANSWER DOWNLOAD EXAMIANS APP

Petroleum Refinery Engineering
Mercaptans are

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

ANSWER DOWNLOAD EXAMIANS APP