Processing of residual and/or contaminated feeds in FCC units requires adaptation of the catalyst system to overcome potential diffusion limitations and ensure refiner profitability. In this type of operation, it is normal for bottom conversion, catalyst activity, and its selectivity toward coke and gas to be affected due to the inevitable mass transfer limitations. As a result, the FCCU profitability is impaired.
The FCC UPGRADER™ premium catalyst family was designed for feeds that are heavy, mass transfer-limited, or contaminated with metals such as vanadium, nickel, and iron. Its high accessibility enables significantly greater diffusion of high molecular weight molecules into the interior of the catalyst particle. The improved matrix performance and the increased contribution of the zeolite to cracking contribute to superior processing of heavier and contaminated feeds.