Fluid catalytic cracking fast fluidization

Fig. 1. A 1 MMTA fluid catalytic cracking unit with fast fluidized bed regenerator (courtesy Gaoqiao Petrochemical Company). 1, regenerator 2, first-stage FFB regenerator 3, second-stage FFB regenerator, 4, main fractionator, 5. FFB catalyst cooler 6, catalyst hoppers 7, cyclone...

Table 10.2. Comparison of typical operating conditions for the two principal applications of fast fluidization fluid catalytic cracking and circulating fluidized bed combustion [56, 67].

Hot disputes exist as to whether the fine-grid TFM simulation is feasible to capture CFB flow behavior (Benyahia, 2012 Hong et al, 2015 Lu et al, 2009 Syamlal and Pannala, 2011 Wang et al, 2010). For the so-called fast fluidization with Geldart A particles, say, fluid catalytic cracking (FCC) catalyst, Lu et al (2009) pointed out that the fine-grid simulation may improve... 

Chen J, Cao H, Liu T. Catalyst regeneration in fluid catalytic cracking. In Kwauk M, ed. Fast Fluidization. Adv Chem Eng 20 389 19, 1994. 

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