Reducing FCC Emissions

The gaseous emissions from the FCC unit are CO, NOj, particulates, and SOj. All are either locally or nationally regulated. Table 10-7 shows the current allowable limits of the EPA New Source Performance Standards (NSPS) for the emissions of these airborne pollutants. NSPS levels can be triggered by one of the following conditions  

There is no national requirement limiting NO emissions from the FCC flue gas, but several state and regional agencies have imposed limits on their release. These emissions are directly proportional to 

ERA S New Source Performance Standards (NSPS) for Gaseous Emissions from the FCC Regenerators 

Carbon monoxide (CO) Less than 500 ppmv in the flue gas 

Nitrogen oxides (NO ) None (local and regional only) 

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J. A. Sigan, W. A. Kelly, P. A. Lane, W. S. Letzsch, and J. W. PoweU, "Reducing FCC Emissions with No Capital Cost," presented at the 1990 AIChE Spnng National Meeting Miami, Fla., Apr. 1990. 

Dharia, D., Brahn, M., and Letzsch, W., Technologies for Reducing FCC Emissions, presented at Stone Webster s 5th annual Refining Seminar, Dallas, Texas October 12, 1983. 

S. New Additive Technologies for Reduced FCC Emissions AM-02-56. NPRA Aimual Meeting, Salt Lake City, March 20, 2002. 

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