Question

Removal of gaseous impurities like methane, ethane, propane and butane from gasoline is called as _____________________

(a) Stabilization of gasoline

(b) Sweetening of gasoline

(c) Doping of gasoline

(d) Blending of gasoline

I have been asked this question by my school principal while I was bunking the class.

This intriguing question originated from Synthetic Gasoline from Non-Petroleum Sources in chapter Fuels and Combustion of Engineering Chemistry II

Answer 1

The correct option is (a) Stabilization of gasoline

To elaborate: The stabilization of gasoline is achieved by passing the impure gasoline into a fractionating tower having 49 plates. The lower plates are heated by steam, while the gasoline is introduced near the upper plates.