POWER PLANT FILTER MAINTENANCE
“Filtration stops a lot of the contaminant that mixes with the Sulphur from getting to the hot end of the gas turbine. For instance, if you are in a coastal environment, salt going in through the inlet is typically one of the biggest areas where salt can combine with the Sulphur ” causing your hot end corrosion, so if you stop the salt, you stop the corrosion.”
While filtration will not have any direct impact on, for example, Sox and NOx, a typical control method involves injecting lime or pulverized activated carbon into the gas stream to absorb such gases. Says Booth: “Obviously that increases the dust load, so it increases the burden on the needle felt [filter media]”.