Measurements in a commercial catalytic cracking unit
Extensive tests were carried out in a modern commercial catalytic cracking unit to get a better insight into the performance of the key parts of the cracker, including a tall straight riser reactor, a baffled appendix-type countercurrent stripper, a nonswaged regenerator with a draw-off bin located just above the air grid, and a third-stage separator (Shell Oil-type) with a power-recovery unit. Measurements were taken of catalyst density, hydrocarbon composition, and adsorption in the feed riser, catalyst density and hydrocarbon entrainment in the stripper, and catalyst entrainment and cyclone losses in the regenerator. Correlations obtained for riser cracking conversion and yield and for fluid-bed catalyst entrainment were used to identify ways for further design improvement.
- Research Organization:
- Shell Res. B.V.
- OSTI ID:
- 6338524
- Journal Information:
- Ind. Eng. Chem. Process Des. Dev.; (United States), Vol. 19:2
- Country of Publication:
- United States
- Language:
- English
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