Low Sulfur Additive (LSA)

Low Sulfur Additive (LSA) is a Fluid Catalytic Cracking (FCC) additive that targets gasoline volume expansion while reducing sulfur compounds in gasoline without octane loss.

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Low Sulfur Additive (LSA) is a Fluid Catalytic Cracking (FCC) additive for the reduction of sulfur in gasoline from an FCC unit.

Low Sulfur Additive can assist refiners in meeting the low sulfur gasoline regulations required by the worldwide legislative drive to improve air quality.

How does Low Sulfur Additive work?

Low Sulfur Additive (LSA) targets gasoline volume expansion while reducing sulfur compounds in gasoline without octane loss. The reduction of sulfur in FCC gasoline is a requirement in low sulfur gasoline markets because 90 percent of gasoline sulfur is derived from FCC gasoline. The combination of feed hydrotreating, FCC catalysts and additives, post-treating or cut-point adjustment is utilized by refiners to meet low sulfur specifications. LSA can be a cost effective contributor to sulfur reduction in gasoline.

How much sulfur reduction will LSA provide?

LSA is a proven additive for the reduction of sulfur in gasoline. In numerous tests, 35 percent  reduction in sulfur gasoline has been demonstrated. LSA in combination with other sulfur

reduction processes - such as FCC Gasoline Hydrodesulfurization units - can improve the ability to economically achieve very low sulfur specifications such as 10 ppm.

Combining the Benefits with BASF FCC Catalysts

Additional benefit can be achieved by matching LSA with BASF’s Distributed Matrix Structure (DMS)-based FCC catalysts. The high activity of our DMS-based FCC catalysts diminishes or eliminates the reduced overall activity that is caused by the dilution effect of additives addition to FCC catalysts from other suppliers.