PETR 77 |
| Using additives to reduce NOx, SOx, and CO emissions from the FCC regenerator has been extensively applied in the refining industry, as this strategy offers the refinery reduction of environmental emissions without significant modifications to their regenerator design or unit operation. One primary challenge facing catalysts/additives providers is lack of realistic methods for lab-scale additive performance evaluations. Because the presence of an additive can impact the emissions of several gases in addition to those targeted, it is necessary to monitor COx, NOx, and SOx simultaneously for an accurate performance assessment. This challenge can be overcome by evaluating additives during coke combustion. We present here the results of evaluating CO combustion promoters during the coke combustion of a spent catalyst (Coke Combustion Test). Furthermore, deactivation of additives under simulated FCC conditions using cyclic deactivation was combined with the Coke Combustion Test to give a more realistic ranking of the CO combustion promoters. |
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7th International Symposium on Advances in Fluid Cracking Catalysts (FCCs)
8:30 AM-11:50 AM, Tuesday, 12 September 2006 Palace -- Telegraph Hill, Oral
Division of Petroleum Chemistry |