Flame combustion variations in the MTO auxiliary combustion chamber
Thread Content
This post was last edited by liaifeng on 2018-7-28 at 10:51. When the MTO auxiliary combustion chamber is in use, excessive primary air flow results in a short flame that flickers, with a blueish color to it. The primary air is insufficient, resulting in a long and drifting flame that is dark red in color. Why?
Blue flame generally indicates relatively complete combustion, while a dark red flame indicates incomplete combustion. Increasing or decreasing the primary air supply adjusts the amount of oxygen in the auxiliary combustion chamber, which is why the color of the flame changes
The air volume for the auxiliary combustion chamber, as well as that of the primary and secondary air streams, is adjusted to match the furnace temperature; if the amount of primary air is too high, the flame tends to flicker, while if it is too low, the combustion is incomplete