New method estimates sulfuric acid emissions from fired heaters

When a sulfur-bearing fuel is burned, essentially all the sulfur is initially converted to SO2, the primary form of sulfur emissions from combustion equipment. A small portion of the SO2 converts to SO3 and then some of this SO3 forms sulfuric acid aerosol.We have documented calculation procedures that estimate the sulfuric acid emissions from the stacks of fired heaters and boilers in petroleum refineries and petrochemical plants burning typical liquid and gas fuels.These procedures do not apply to other combustion equipment in these plants such as flares, incinerators, gas turbines, diesel engines, and FCCU regenerators. The procedures are, however, applicable to fired heaters and boile...

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