Olefin-paraffin separation using calcium-ETS-4

Carlos A. Grande; Anna Lind; Ørnulv Vistad; Duncan Akporiaye

doi:10.1021/ie5004703

Olefin-paraffin separation using calcium-ETS-4

Carlos A. Grande, Anna Lind, Ørnulv Vistad, Duncan Akporiaye

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

17 Scopus citations

Abstract

The properties of calcium-modified ETS-4 are studied focusing on olefin-paraffin separation by PSA (Pressure Swing Adsorption), specifically a stream containing CH4/C2H6/C2H4. The effect of activation temperature of Ca-ETS-4 is studied to perform a kinetic separation, with the aim of excluding paraffin molecules from the pores. Adsorption isotherms of pure CH4, C2H6, and C2H4 were measured at 303 K after activating the sample at different temperatures (from 463-583 K). Furthermore, pulse chromatography of single gases at 303 K was carried out after different activation temperatures to determine the heating effect on diffusion of pure gases. Aiming to develop a faster procedure to determine optimal activation temperature for alkali-exchanged ETS-4, a correlation between changes in the crystal lattice parameters from in situ XRD and the diffusion constant has been established for Ca-ETS-4.

Original language	English (US)
Pages (from-to)	15522-15530
Number of pages	9
Journal	Industrial and Engineering Chemistry Research
Volume	53
Issue number	40
DOIs	https://doi.org/10.1021/ie5004703
State	Published - Oct 8 2014
Externally published	Yes

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Generated from Scopus record by KAUST IRTS on 2022-09-13

ASJC Scopus subject areas

General Chemical Engineering
General Chemistry
Industrial and Manufacturing Engineering

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10.1021/ie5004703

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title = "Olefin-paraffin separation using calcium-ETS-4",

abstract = "The properties of calcium-modified ETS-4 are studied focusing on olefin-paraffin separation by PSA (Pressure Swing Adsorption), specifically a stream containing CH4/C2H6/C2H4. The effect of activation temperature of Ca-ETS-4 is studied to perform a kinetic separation, with the aim of excluding paraffin molecules from the pores. Adsorption isotherms of pure CH4, C2H6, and C2H4 were measured at 303 K after activating the sample at different temperatures (from 463-583 K). Furthermore, pulse chromatography of single gases at 303 K was carried out after different activation temperatures to determine the heating effect on diffusion of pure gases. Aiming to develop a faster procedure to determine optimal activation temperature for alkali-exchanged ETS-4, a correlation between changes in the crystal lattice parameters from in situ XRD and the diffusion constant has been established for Ca-ETS-4.",

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T1 - Olefin-paraffin separation using calcium-ETS-4

AU - Grande, Carlos A.

AU - Lind, Anna

AU - Vistad, Ørnulv

AU - Akporiaye, Duncan

N1 - Generated from Scopus record by KAUST IRTS on 2022-09-13

PY - 2014/10/8

Y1 - 2014/10/8

N2 - The properties of calcium-modified ETS-4 are studied focusing on olefin-paraffin separation by PSA (Pressure Swing Adsorption), specifically a stream containing CH4/C2H6/C2H4. The effect of activation temperature of Ca-ETS-4 is studied to perform a kinetic separation, with the aim of excluding paraffin molecules from the pores. Adsorption isotherms of pure CH4, C2H6, and C2H4 were measured at 303 K after activating the sample at different temperatures (from 463-583 K). Furthermore, pulse chromatography of single gases at 303 K was carried out after different activation temperatures to determine the heating effect on diffusion of pure gases. Aiming to develop a faster procedure to determine optimal activation temperature for alkali-exchanged ETS-4, a correlation between changes in the crystal lattice parameters from in situ XRD and the diffusion constant has been established for Ca-ETS-4.

AB - The properties of calcium-modified ETS-4 are studied focusing on olefin-paraffin separation by PSA (Pressure Swing Adsorption), specifically a stream containing CH4/C2H6/C2H4. The effect of activation temperature of Ca-ETS-4 is studied to perform a kinetic separation, with the aim of excluding paraffin molecules from the pores. Adsorption isotherms of pure CH4, C2H6, and C2H4 were measured at 303 K after activating the sample at different temperatures (from 463-583 K). Furthermore, pulse chromatography of single gases at 303 K was carried out after different activation temperatures to determine the heating effect on diffusion of pure gases. Aiming to develop a faster procedure to determine optimal activation temperature for alkali-exchanged ETS-4, a correlation between changes in the crystal lattice parameters from in situ XRD and the diffusion constant has been established for Ca-ETS-4.

UR - https://pubs.acs.org/doi/10.1021/ie5004703

UR - http://www.scopus.com/inward/record.url?scp=84907938773&partnerID=8YFLogxK

U2 - 10.1021/ie5004703

DO - 10.1021/ie5004703

M3 - Article

SN - 1520-5045

VL - 53

SP - 15522

EP - 15530

JO - Industrial and Engineering Chemistry Research

JF - Industrial and Engineering Chemistry Research

IS - 40

ER -

Olefin-paraffin separation using calcium-ETS-4

Abstract

Bibliographical note

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