8243Chemical EngineeringMedium
Higher furnace temperature cannot be achieved by use of a lean fuel gas in the furnace by________?
APreheating the fuel gas
BPreheating the combustion air
COxygen enrichment of combustion air
DIncreasing the draft in the furnace
Correct answer
D. Increasing the draft in the furnace
Explanation
The correct answer is Increasing the draft in the furnace.