Abstract: The development of equipment related to catalytic cracking reaction systems needs to satisfy the “high-quick synergy” principle, which requires mutual coordination between the "three highs" in the flow-transfer environment [high-efficiency oil-catalyst contact (referred to as oil-cat), high-efficiency oil-cat separation, and high-efficiency catalyst stripping] and the “quick” requirement dictated by reaction kinetics. Based on the method of decomposing and reconstructing single heterogeneous fluidization zones, novel pre-lifting equipment and stripping equipment have been developed. By applying aerodynamic theorem to multiphase flow analysis, feed injection equipmentthat can regulate multi-channel confined jet flow-multiphase flow has been developed. Through enhancing effective tangential velocity, a revolutionary oil-cat rapid separation equipment with innovative concepts has been created for riser outlets. These equipment configurations not only demonstrate excellent performance but also enable quick phase transition of two-phase flow patterns within catalytic cracking reaction systems, achieving extensive industrial applications.

Key words: coupling equipment, pre-lift, feed injection, quick separator, stripper