BIDISPERSE PORE DIFFUSION MODEL FOR BULK PSA SEPARATION OF MULTICOMPONENT MIXTURES: SEPARATION OF METHANE-CARBON DIOXIDE WITH ZEOLITE 5A.

S. J. Doong; R. T. Yang

BIDISPERSE PORE DIFFUSION MODEL FOR BULK PSA SEPARATION OF MULTICOMPONENT MIXTURES: SEPARATION OF METHANE-CARBON DIOXIDE WITH ZEOLITE 5A.

S. J. Doong
, R. T. Yang

Department of Chemical and Biological Engineering

University at Buffalo

SUNY Buffalo

Research output: Contribution to journal › Conference article › peer-review

Abstract

A PSA model is developed for zeolite sorbents which have a bidisperse pore structure. The model is a general one, capable of predicting/simulating the bulk separation of multicomponent mixtures. The computation is simplified by assuming a parabolic concentration profile in both micropores (crystals) and macropores (pellets), which leads directly to Glueckauf's linear driving-force approximation. The model is applied to the separation of methane/carbon dioxide on 5A zeolite. The results compare favorably with the membrane process. It is shown that the resistance for diffusion within the crystals is important in PSA separation. When the crystal size is increased from 1 mu m to 3 mu m in radius, the results deviate substantially from that predicted by the equilibrium model.

Original language	English
Journal	Annual Meeting - American Institute of Chemical Engineers
State	Published - 1985

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@article{c9006865143a4d299e742e3da25eef24,

title = "BIDISPERSE PORE DIFFUSION MODEL FOR BULK PSA SEPARATION OF MULTICOMPONENT MIXTURES: SEPARATION OF METHANE-CARBON DIOXIDE WITH ZEOLITE 5A.",

abstract = "A PSA model is developed for zeolite sorbents which have a bidisperse pore structure. The model is a general one, capable of predicting/simulating the bulk separation of multicomponent mixtures. The computation is simplified by assuming a parabolic concentration profile in both micropores (crystals) and macropores (pellets), which leads directly to Glueckauf's linear driving-force approximation. The model is applied to the separation of methane/carbon dioxide on 5A zeolite. The results compare favorably with the membrane process. It is shown that the resistance for diffusion within the crystals is important in PSA separation. When the crystal size is increased from 1 mu m to 3 mu m in radius, the results deviate substantially from that predicted by the equilibrium model.",

author = "Doong, \{S. J.\} and Yang, \{R. T.\}",

year = "1985",

language = "English",

journal = "Annual Meeting - American Institute of Chemical Engineers",

issn = "0196-7282",

}

TY - JOUR

T1 - BIDISPERSE PORE DIFFUSION MODEL FOR BULK PSA SEPARATION OF MULTICOMPONENT MIXTURES

T2 - SEPARATION OF METHANE-CARBON DIOXIDE WITH ZEOLITE 5A.

AU - Doong, S. J.

AU - Yang, R. T.

PY - 1985

Y1 - 1985

N2 - A PSA model is developed for zeolite sorbents which have a bidisperse pore structure. The model is a general one, capable of predicting/simulating the bulk separation of multicomponent mixtures. The computation is simplified by assuming a parabolic concentration profile in both micropores (crystals) and macropores (pellets), which leads directly to Glueckauf's linear driving-force approximation. The model is applied to the separation of methane/carbon dioxide on 5A zeolite. The results compare favorably with the membrane process. It is shown that the resistance for diffusion within the crystals is important in PSA separation. When the crystal size is increased from 1 mu m to 3 mu m in radius, the results deviate substantially from that predicted by the equilibrium model.

AB - A PSA model is developed for zeolite sorbents which have a bidisperse pore structure. The model is a general one, capable of predicting/simulating the bulk separation of multicomponent mixtures. The computation is simplified by assuming a parabolic concentration profile in both micropores (crystals) and macropores (pellets), which leads directly to Glueckauf's linear driving-force approximation. The model is applied to the separation of methane/carbon dioxide on 5A zeolite. The results compare favorably with the membrane process. It is shown that the resistance for diffusion within the crystals is important in PSA separation. When the crystal size is increased from 1 mu m to 3 mu m in radius, the results deviate substantially from that predicted by the equilibrium model.

UR - https://www.scopus.com/pages/publications/0022229017

M3 - Conference article

SN - 0196-7282

JO - Annual Meeting - American Institute of Chemical Engineers

JF - Annual Meeting - American Institute of Chemical Engineers

ER -

BIDISPERSE PORE DIFFUSION MODEL FOR BULK PSA SEPARATION OF MULTICOMPONENT MIXTURES: SEPARATION OF METHANE-CARBON DIOXIDE WITH ZEOLITE 5A.

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