High-pressure CO2/CH4 separation of Zr-MOFs based mixed matrix membranes

Mohd Zamidi Ahmad, Thijs A. Peters, Nora M. Konnertz, T. Visser, Carlos Téllez, Joaquín Coronas, Vlastimil Fila, Wiebe M. de Vos, Nieck E. Benes

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Abstract

The gas separation properties of 6FDA-DAM mixed matrix membranes (MMMs) with three types of zirconium-based metal organic framework nanoparticles (MOF NPs, ca. 40 nm) have been investigated up to 20 bar. Both NPs preparation and MMMs development were presented in an earlier publication that reported outstanding CO2/CH4 separation performances (50:50 vol% CO2/CH4 feed at 2 bar pressure difference, 35 °C) and this subsequent study is to demonstrate its usefulness to the natural gas separation application. In the current work, CO2/CH4 separation has been investigated at high pressure (2–20 bar feed pressure) with different CO2 content in the feed (10–50 vol%) in the temperature range 35–55 °C. Moreover, the plasticization, competitive sorption effects, and separation of the acid gas hydrogen sulfide (H2S) have been investigated in a ternary feed mixture of CO2:H2S:CH4 (vol% ratio of 30:5:65) at 20 bar and 35 °C. The incorporation of the Zr-MOFs in 6FDA-DAM enhances both CO2 permeability and CO2/CH4 selectivity of this polymer. These MMMs exhibit high stability under separation conditions relevant to an actual natural gas sweetening process. The presence of H2S does not induce plasticization but increases the total acid gas permeability, acid gas/CH4 selectivity and only causes reversible competitive sorption. The overall study suggests a large potential for 6FDA-DAM Zr-MOF MMMs to be applied in natural gas sweetening, with good performance and stability under the relevant process conditions.

Original languageEnglish
Article number115858
JournalSeparation and purification technology
Volume230
Early online date25 Jul 2019
DOIs
Publication statusE-pub ahead of print/First online - 25 Jul 2019

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Membranes
Natural gas
Gases
Acids
Sorption
Hydrogen Sulfide
Gas permeability
Hydrogen sulfide
Zirconium
Polymers
Metals
Nanoparticles
Temperature

Keywords

  • UT-Hybrid-D
  • HS separation
  • High-pressure separation
  • Mixed matrix membrane
  • Zr-based MOF
  • CO capture

Cite this

Ahmad, Mohd Zamidi ; Peters, Thijs A. ; Konnertz, Nora M. ; Visser, T. ; Téllez, Carlos ; Coronas, Joaquín ; Fila, Vlastimil ; de Vos, Wiebe M. ; Benes, Nieck E. / High-pressure CO2/CH4 separation of Zr-MOFs based mixed matrix membranes. In: Separation and purification technology. 2020 ; Vol. 230.
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abstract = "The gas separation properties of 6FDA-DAM mixed matrix membranes (MMMs) with three types of zirconium-based metal organic framework nanoparticles (MOF NPs, ca. 40 nm) have been investigated up to 20 bar. Both NPs preparation and MMMs development were presented in an earlier publication that reported outstanding CO2/CH4 separation performances (50:50 vol{\%} CO2/CH4 feed at 2 bar pressure difference, 35 °C) and this subsequent study is to demonstrate its usefulness to the natural gas separation application. In the current work, CO2/CH4 separation has been investigated at high pressure (2–20 bar feed pressure) with different CO2 content in the feed (10–50 vol{\%}) in the temperature range 35–55 °C. Moreover, the plasticization, competitive sorption effects, and separation of the acid gas hydrogen sulfide (H2S) have been investigated in a ternary feed mixture of CO2:H2S:CH4 (vol{\%} ratio of 30:5:65) at 20 bar and 35 °C. The incorporation of the Zr-MOFs in 6FDA-DAM enhances both CO2 permeability and CO2/CH4 selectivity of this polymer. These MMMs exhibit high stability under separation conditions relevant to an actual natural gas sweetening process. The presence of H2S does not induce plasticization but increases the total acid gas permeability, acid gas/CH4 selectivity and only causes reversible competitive sorption. The overall study suggests a large potential for 6FDA-DAM Zr-MOF MMMs to be applied in natural gas sweetening, with good performance and stability under the relevant process conditions.",
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High-pressure CO2/CH4 separation of Zr-MOFs based mixed matrix membranes. / Ahmad, Mohd Zamidi; Peters, Thijs A.; Konnertz, Nora M.; Visser, T.; Téllez, Carlos; Coronas, Joaquín; Fila, Vlastimil; de Vos, Wiebe M.; Benes, Nieck E.

In: Separation and purification technology, Vol. 230, 115858, 02.01.2020.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - High-pressure CO2/CH4 separation of Zr-MOFs based mixed matrix membranes

AU - Ahmad, Mohd Zamidi

AU - Peters, Thijs A.

AU - Konnertz, Nora M.

AU - Visser, T.

AU - Téllez, Carlos

AU - Coronas, Joaquín

AU - Fila, Vlastimil

AU - de Vos, Wiebe M.

AU - Benes, Nieck E.

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N2 - The gas separation properties of 6FDA-DAM mixed matrix membranes (MMMs) with three types of zirconium-based metal organic framework nanoparticles (MOF NPs, ca. 40 nm) have been investigated up to 20 bar. Both NPs preparation and MMMs development were presented in an earlier publication that reported outstanding CO2/CH4 separation performances (50:50 vol% CO2/CH4 feed at 2 bar pressure difference, 35 °C) and this subsequent study is to demonstrate its usefulness to the natural gas separation application. In the current work, CO2/CH4 separation has been investigated at high pressure (2–20 bar feed pressure) with different CO2 content in the feed (10–50 vol%) in the temperature range 35–55 °C. Moreover, the plasticization, competitive sorption effects, and separation of the acid gas hydrogen sulfide (H2S) have been investigated in a ternary feed mixture of CO2:H2S:CH4 (vol% ratio of 30:5:65) at 20 bar and 35 °C. The incorporation of the Zr-MOFs in 6FDA-DAM enhances both CO2 permeability and CO2/CH4 selectivity of this polymer. These MMMs exhibit high stability under separation conditions relevant to an actual natural gas sweetening process. The presence of H2S does not induce plasticization but increases the total acid gas permeability, acid gas/CH4 selectivity and only causes reversible competitive sorption. The overall study suggests a large potential for 6FDA-DAM Zr-MOF MMMs to be applied in natural gas sweetening, with good performance and stability under the relevant process conditions.

AB - The gas separation properties of 6FDA-DAM mixed matrix membranes (MMMs) with three types of zirconium-based metal organic framework nanoparticles (MOF NPs, ca. 40 nm) have been investigated up to 20 bar. Both NPs preparation and MMMs development were presented in an earlier publication that reported outstanding CO2/CH4 separation performances (50:50 vol% CO2/CH4 feed at 2 bar pressure difference, 35 °C) and this subsequent study is to demonstrate its usefulness to the natural gas separation application. In the current work, CO2/CH4 separation has been investigated at high pressure (2–20 bar feed pressure) with different CO2 content in the feed (10–50 vol%) in the temperature range 35–55 °C. Moreover, the plasticization, competitive sorption effects, and separation of the acid gas hydrogen sulfide (H2S) have been investigated in a ternary feed mixture of CO2:H2S:CH4 (vol% ratio of 30:5:65) at 20 bar and 35 °C. The incorporation of the Zr-MOFs in 6FDA-DAM enhances both CO2 permeability and CO2/CH4 selectivity of this polymer. These MMMs exhibit high stability under separation conditions relevant to an actual natural gas sweetening process. The presence of H2S does not induce plasticization but increases the total acid gas permeability, acid gas/CH4 selectivity and only causes reversible competitive sorption. The overall study suggests a large potential for 6FDA-DAM Zr-MOF MMMs to be applied in natural gas sweetening, with good performance and stability under the relevant process conditions.

KW - UT-Hybrid-D

KW - HS separation

KW - High-pressure separation

KW - Mixed matrix membrane

KW - Zr-based MOF

KW - CO capture

U2 - 10.1016/j.seppur.2019.115858

DO - 10.1016/j.seppur.2019.115858

M3 - Article

VL - 230

JO - Separation and purification technology

JF - Separation and purification technology

SN - 1383-5866

M1 - 115858

ER -