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Altrium®

Altrium® is the newest BASF catalyst based on the combined technologies AIM (Advanced Innovative Matrix) and IZY (Improved Zeolite-Y). Due to changes in market environment, increasing the LCO output through better bottoms upgrading became more attractive for refineries. The newest BASF resid catalyst, Altrium, was introduced to a Western European refinery to increase transportation fuels yields.

Operation Background and Performance
The fluid catalytic cracking unit (FCCU) is a UOP stacked design with a 30 kbpsd processing capacity, operating in a deep partial burn. Resid feedstocks with high metals and Concarbon are converted into valuable products already using a catalyst from BASF (incumbent). With Altrium, the fluidized dry gas factor (FDGF) and the fluidized coke factor (FCF) have been maintained through the full range of typical metals levels. This turns into a reliable operation of the wet gas compressor that has not been impacted by changes in dry gas yields, and stable regenerator temperature and delta coke. Altrium improved the light cycle oil to bottoms ration (LCO/BOT), thanks to the conversion of big molecules, resulting in less slurry (reduced by approx. 2.5 - 3.0 wt.%), and more valuable products

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