Fuel gases containing hydrocarbons (ie.g. coke oven gas) are not preheated befor

Question

Fuel gases containing hydrocarbons (ie.g. coke oven gas) are not preheated before burning, mainly because

Options:

A . the hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot.

B . it reduces its calorific value tremendously.

C . it reduces its flame temperature tremendously.

D . there are chances of explosion during preheating.

Answer: Option A
Answer: (a).the hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot.

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