A hydrocarbon gas, from a petroleum distillation column contains HS which reduced from U.03 kmol H;S/knfot of inert hydrccarbon gas to 5 of inlet concentration by scrubbing with a pure water solvent in a countercurent plate tower, operating at 300Kand atmospheric pressure. H;S is soluble in such a solution and the equilibrium relation may be taken as Y 2X. M(1- Ls 3D1.5 Gs Ls The operation is carried out with and the overall mass transfer coefficient Gs for absorption Ka may be taken as 0.04 kmol/s.m' of tower volume. Calculate: 1-Number of theoretical plate. 2- Height of tower with 0.0136 kmol inert hydrocarbon gas /ms 3- Rate of H,S transfer from gas to liquid phase and overall resistance to mass transfer at the bottom of tower.

Introduction to Chemical Engineering Thermodynamics
8th Edition
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Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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Q4 // A hydrocarbon gas. from a petroleum distillation column contains H,S which
rediuced from 0.03 kmol H;S/knfot of inert hydrecarbon gas to 5 of inlet concentration by
scrubbing with a pure water solvent in a countercurrent plate tower, operating at 300 K und
atmospheric pressure. H;S is soluble in such a solution and the equilibrium relation may be
taken as Y 2X.
M(1-
Ls
Ls
3D1.5
Gs
The operation is carried out with
and the overall mass transfer coefficient
Gs
min
for absorption Ka may be taken as 0.04 kmol/s.m' of tower volume.
Calculate:
1-Number of theoretical plate.
2- Height of tower with 0.0136 kmol inert hydrocarbon gas /m s
3- Rate of H,S transfer from gas to liquid phase and overall resistance to mass transfer at the
bottom of tower.
ET
Ha
Transcribed Image Text:Q4 // A hydrocarbon gas. from a petroleum distillation column contains H,S which rediuced from 0.03 kmol H;S/knfot of inert hydrecarbon gas to 5 of inlet concentration by scrubbing with a pure water solvent in a countercurrent plate tower, operating at 300 K und atmospheric pressure. H;S is soluble in such a solution and the equilibrium relation may be taken as Y 2X. M(1- Ls Ls 3D1.5 Gs The operation is carried out with and the overall mass transfer coefficient Gs min for absorption Ka may be taken as 0.04 kmol/s.m' of tower volume. Calculate: 1-Number of theoretical plate. 2- Height of tower with 0.0136 kmol inert hydrocarbon gas /m s 3- Rate of H,S transfer from gas to liquid phase and overall resistance to mass transfer at the bottom of tower. ET Ha
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