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Download Distillation Troubleshooting by Henry Z. Kister PDF

By Henry Z. Kister

This publication transforms many years of hands-on reports right into a convenient reference for execs and scholars thinking about the operation, layout, learn, development, and administration of large-scale distillation

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115^ρ (1) where APflood is theflood pressure drop (in. H20/ft packing) and Fp is the packing factor (ft -1 ). This equation was shown to give a goodfit to experimental data (many of which were generated by suppliers) and was later endorsed by Strigle (473) with a slight change of coefficient. For the high-capacity packing in the vacuum tower, the packing factor was 12. 65 in. H20/ft packing, which coincided with the limit observed by the refinery. For hydraulic calculations, gas velocity usually is expressed as a C-factor (Cs), (ft/s), given by (2) where Us is the gas superficial velocity based on tower cross-sectional area (ft/s), ρ is the density (lb/ft3), and the subscripts G and L denote gas and liquid, respectively.

Above this, the pressure drop would rapidly rise. 87 from Equation 1. Simulation predictions (both vendor and general options) were of a 20% higher capacity. Tower D Random packing installed in a chemical tower fell short of achieving design capacity. 5 in. H20/ft packing. 8 in. H 2 0/ft packing. The packing flooded at exactly that pressure drop. 16 DO GOOD CORRELATIONS MAKE THE SIMULATION HYDRAULIC CALCULATIONS RELIABLE? Henry Z. Kister, reference 254. Reproduced with permission. Copyright © (1995) AIChE.

H20/ft packing) and Fp is the packing factor (ft -1 ). This equation was shown to give a goodfit to experimental data (many of which were generated by suppliers) and was later endorsed by Strigle (473) with a slight change of coefficient. For the high-capacity packing in the vacuum tower, the packing factor was 12. 65 in. H20/ft packing, which coincided with the limit observed by the refinery. For hydraulic calculations, gas velocity usually is expressed as a C-factor (Cs), (ft/s), given by (2) where Us is the gas superficial velocity based on tower cross-sectional area (ft/s), ρ is the density (lb/ft3), and the subscripts G and L denote gas and liquid, respectively.

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