Molecular sieve sorbents for kinetic separation of propane/propylene

Joel Padin; Salil U. Rege; Ralph T. Yang; Linda S. Cheng

doi:10.1016/S0009-2509(00)00099-3

Molecular sieve sorbents for kinetic separation of propane/propylene

Joel Padin
, Salil U. Rege
, Ralph T. Yang
, Linda S. Cheng

Department of Chemical and Biological Engineering

University at Buffalo

Research output: Contribution to journal › Article › peer-review

124 Scopus citations

Abstract

The separation of propane-propylene mixtures is one of great industrial importance. It is also one of the most difficult and costly to achieve. In this work, the feasibility of using sorbents based on kinetic (due to differences in diffusion rates) or steric (due to size exclusion) effect for gas-phase separation of propane-propylene was determined. Equilibrium isotherms and uptake curves were measured on NaA (4A), NaLiA, and AlPO₄-14 zeolites. All of the sorbents were capable of selectively adsorbing propylene over propane. PSA simulations were used to compare these sorbents against π-complexation sorbents such as AgNO₃/SiO₂. The best sorbents were AlPO₄-14 and AgNO₃/SiO₂. In both cases, over 99% propylene product purities could be obtained at reasonably high recoveries and throughputs. (C) 2000 Elsevier Science Ltd. All rights reserved.

Original language	English
Pages (from-to)	4525-4535
Number of pages	11
Journal	Chemical Engineering Science
Volume	55
Issue number	20
DOIs	https://doi.org/10.1016/S0009-2509(00)00099-3
State	Published - Oct 2000

Keywords

AIPO-14
Kinetic separation
Mixed cation zeolite A
Propane/propylene separation
π-complexation sorbents

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10.1016/S0009-2509(00)00099-3

Cite this

@article{bffd0d577c8347a7acd77b96d10caeea,

title = "Molecular sieve sorbents for kinetic separation of propane/propylene",

abstract = "The separation of propane-propylene mixtures is one of great industrial importance. It is also one of the most difficult and costly to achieve. In this work, the feasibility of using sorbents based on kinetic (due to differences in diffusion rates) or steric (due to size exclusion) effect for gas-phase separation of propane-propylene was determined. Equilibrium isotherms and uptake curves were measured on NaA (4A), NaLiA, and AlPO4-14 zeolites. All of the sorbents were capable of selectively adsorbing propylene over propane. PSA simulations were used to compare these sorbents against π-complexation sorbents such as AgNO3/SiO2. The best sorbents were AlPO4-14 and AgNO3/SiO2. In both cases, over 99\% propylene product purities could be obtained at reasonably high recoveries and throughputs. (C) 2000 Elsevier Science Ltd. All rights reserved.",

keywords = "AIPO-14, Kinetic separation, Mixed cation zeolite A, Propane/propylene separation, π-complexation sorbents",

author = "Joel Padin and Rege, \{Salil U.\} and Yang, \{Ralph T.\} and Cheng, \{Linda S.\}",

year = "2000",

month = oct,

doi = "10.1016/S0009-2509(00)00099-3",

language = "English",

volume = "55",

pages = "4525--4535",

journal = "Chemical Engineering Science",

issn = "0009-2509",

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TY - JOUR

T1 - Molecular sieve sorbents for kinetic separation of propane/propylene

AU - Padin, Joel

AU - Rege, Salil U.

AU - Yang, Ralph T.

AU - Cheng, Linda S.

PY - 2000/10

Y1 - 2000/10

N2 - The separation of propane-propylene mixtures is one of great industrial importance. It is also one of the most difficult and costly to achieve. In this work, the feasibility of using sorbents based on kinetic (due to differences in diffusion rates) or steric (due to size exclusion) effect for gas-phase separation of propane-propylene was determined. Equilibrium isotherms and uptake curves were measured on NaA (4A), NaLiA, and AlPO4-14 zeolites. All of the sorbents were capable of selectively adsorbing propylene over propane. PSA simulations were used to compare these sorbents against π-complexation sorbents such as AgNO3/SiO2. The best sorbents were AlPO4-14 and AgNO3/SiO2. In both cases, over 99% propylene product purities could be obtained at reasonably high recoveries and throughputs. (C) 2000 Elsevier Science Ltd. All rights reserved.

AB - The separation of propane-propylene mixtures is one of great industrial importance. It is also one of the most difficult and costly to achieve. In this work, the feasibility of using sorbents based on kinetic (due to differences in diffusion rates) or steric (due to size exclusion) effect for gas-phase separation of propane-propylene was determined. Equilibrium isotherms and uptake curves were measured on NaA (4A), NaLiA, and AlPO4-14 zeolites. All of the sorbents were capable of selectively adsorbing propylene over propane. PSA simulations were used to compare these sorbents against π-complexation sorbents such as AgNO3/SiO2. The best sorbents were AlPO4-14 and AgNO3/SiO2. In both cases, over 99% propylene product purities could be obtained at reasonably high recoveries and throughputs. (C) 2000 Elsevier Science Ltd. All rights reserved.

KW - AIPO-14

KW - Kinetic separation

KW - Mixed cation zeolite A

KW - Propane/propylene separation

KW - π-complexation sorbents

UR - https://www.scopus.com/pages/publications/0034307069

U2 - 10.1016/S0009-2509(00)00099-3

DO - 10.1016/S0009-2509(00)00099-3

M3 - Article

SN - 0009-2509

VL - 55

SP - 4525

EP - 4535

JO - Chemical Engineering Science

JF - Chemical Engineering Science

IS - 20

ER -

Molecular sieve sorbents for kinetic separation of propane/propylene

Abstract

Keywords

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