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Leading Trade Fair for Powder & Bulk Solids Processing and Analytics

29.9 - 1.10.2020 // Nuremberg, Germany

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Exhibitors & Products POWTECH 2019
Zoom product LOGO_Fluidized Catalytic Cracking (FCC)

Fluidized Catalytic Cracking (FCC)

LOGO_Fluidized Catalytic Cracking (FCC)

Fluidized Catalytic Cracking (FCC)

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  • Conducted innovative research on a vortex stabilizer in a secondary cyclone to explain why it is more effective than other configurations (dust hopper, long cone, long barrel) in mitigating secondary cyclone cone erosion
  • Developed a design procedure for vortex stabilizers
  • Conducted tests on trickle valves and counter-weighted flapper valves to explain why secondary cyclone efficiencies can be so low
  • Found that immersing trickle valves and counter-weighted flapper valves shallowly into the tip of the fluidized bed can prevent excessive gas flow up the secondary cyclone dipleg and prevent catalyst losses
  • Developed an effective third-stage separator (TSS) for a member company that led to the successful implementation of the TSS into several commercial plants
  • Conducted extensive testing on bypassing to determine why it occurs, what parameters influence it and how it can be mitigated
  • Demonstrated how the gas bypassing in the fluidized bed could result in poor performance of primary cyclone dipleg leading to flooding
  • PSRI has been a leader in studying and optimizing standpipe operation/standpipe entrance configurations and aeration amount and location
  • PSRI has developed correlations to determine the optimum amount of aeration to add to a standpipe
  • Developed a bypass line (called a burp tube) for hybrid-angled standpipes to allow gas collecting at an elbow to be bypassed from the elbow into the freeboard of the fluidized bed above it
  • PSRI has been one of the first to characterize the radial gas and solids distribution in risers
  • Improved the design of the transition between a mixing pot and the riser above it
  • Studied different riser exit configurations with respect to erosion, pressure drop and how much attrition is produced at each configuration
  • Developed design procedures for gas distributors
  • Studied and evaluated several close-coupled cyclone designs

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