The issue of using petroleum coke as fuel for heating furnaces
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Petroleum coke is ground into fine powder of 10 microns, then mixed with heavy oil along with certain chemical additives, to be used as a fuel for heating furnaces in place of heavy oil. Has anyone done this? What changes are required for heating furnaces and boilers?
Is it possible? ? Won’t the furnace tubes suffer severe scaling? ? ?
It is recommended that petroleum coke be used directly as fuel in circulating fluidized bed boilers.
There are also issues with using petroleum coke directly as fuel in circulating fluidized bed boilers; if the bed temperature is not properly controlled, coking can occur inside the boiler. The softening temperature of petroleum coke is around 1300 degrees. To overcome the effect of vanadium present in petroleum coke, lime needs to be added; adding lime also helps to control the sulfur content in the flue gases.