Question

Why should be a metallurgical coke porous in nature?

(a) To increase its calorific value

(b) To provide contact between carbon and oxygen

(c) To decrease its ash content

(d) For its easy storage

I have been asked this question in my homework.

This intriguing question comes from Secondary Solid Fuels in division Fuels and Combustion of Engineering Chemistry II

Answer 1

The correct option is (b) To provide contact between carbon and oxygen

The explanation: When the metallurgical coke is porous then it becomes easy for the carbon present in it to make contact with oxygen so that the combustion process can be done efficiently of the fuel in the furnace. It increases the rate of combustion.