ENV-98-173 Particulate Control Options for FCCU Regenerator Flue Gas-Performance, Economics, Flexibility, and Reliability

Description:

Many environmental regulatory issues, such as the refinery MACT II, compliance assurance monitoring (CAM), PM 2.5, and regional haze are causing refiners to review their air pollution control strategy for FCCU regenerator flue gas. As part of this review, it is important to investigate the impact of any potential control equipment modifications in terms of life cycle costs, performance capabilities, flexibility in achieving lower emission levels or adapting to process changes, and reliability to ensure process operation without interruption due to the air pollution control system. Three popular control strategies are examined. These include multiple stages of cyclones, electrostatic precipitators, and wet scrubbing systems. Each of these devices are examined with respect to economics, performance, flexibility, and reliability. A comparison of the control strategies in a variety of size ranges is made with respect to each of these items. Each control device is summarized with respect to its positive and negative features. Finally, the most appropriate application of each type of control technology is discussed along with the justification for these conclusions.