NEW TECHNOLOGY PROVIDESOPPORTUNITIES IN FCC REGENERATOREMISSIONS CONTROL

摘要

Increasingly severe regulations on SOx and NO_x emissions from FluidrnCatalytic Cracking Units (FCCUs) are being implemented around the world.rnAlthough there are a variety of approaches for meeting these emission limits,rnthe use of SOx and NO_x reduction additives continues to become morernattractive for both technical and economic reasons.rnRegulatory situations and the technology for meeting SO_x and NO_x emissionrnlimits are reviewed. A new SO_x reduction product from Albemarle,rnSOxMASTER, is introduced, offering unique advantages in challengingrnapplications such as deep partial burn, R2R type units, and FCCUs with largerninventories.rnAn economic comparison is made showing the advantages of using SO_xrnreduction additives over wet gas scrubbers. Additionally, with the high costsrnof caustic seen recently, refiners who have already installed wet gasrnscrubbers are turning to SOx reduction additives to lower operatingrnexpenditures. Similar comparisons with hardware options are made for NO_xrnreduction technologies.rnSOxMASTER completes a product portfolio which, alongside Albemarle'srnproven additives, KDSOx and SOxDOWN, offers solutions to meet all of arnrefiner's FCCU SO_x reduction needs. ELIMINOx and KDNOx providernalternatives for achieving NO_x limits.