AM-01-12 WET SCRUBBING FOR FCCUS - A CASE STUDY EXAMINING SITE SPECIFIC DESIGN CONSIDERATIONS

Description:

Wet scrubbing is a well-proven and reliable method of reducing flue gas emissions from fluid catalytic cracking units (FCCUs). There are, however, many project specific issues affecting the design and configuration of these systems. This paper addresses specific issues related to the EDV ® Wet Scrubbing system recently installed at the Marathon Ashland Petroleum LLC refinery in Robinson, Illinois. Project specific issues addressed include the minimization of pressure drop due to pressure constraints on upstream equipment and the design of the reagent system to minimize both chlorides and the quantity of purge water discharged from the facility. In addition to the issues previously noted, the design of the entire wet scrubbing system is discussed, including the treatment of water purged from the scrubbing system. Also addressed is the project coordination and integration of the scrubbing system into the refinery’s operation. Finally, commissioning of the system is examined.