Mixed matrix membranes using SAPO-34/polyetherimide for carbon dioxide/methane separation

Souha Belhaj Messaoud, Atsushi Takagaki, Takashi Sugawara, Ryuji Kikuchi, S. Ted Oyama

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Abstract Mixed matrix membranes (MMMs) are hybrid materials prepared by dispersing inorganic particles in a polymeric matrix and are attracting increasing attention for the separation of CO2/CH4 mixtures. The zeolite SAPO-34 and polyetherimide were selected as the inorganic filler and the polymeric matrix for the synthesis of the supported MMMs. Two polymer solvents, dichloroethane (DCE) and N-methyl-2-pyrrolidone (NMP), were investigated for the preparation, and the DCE solvent resulted in a membrane with better CO2/CH4 selectivity. Various SAPO-34 amounts from 0 to 10 wt% were dispersed in the polymer precursor which was dissolved in DCE. The membrane with 5 wt% SAPO-34 content presented the highest performance with a CO2 permeance of 4 × 10-10 mol m-2 s-1 Pa-1 and a CO2/CH4 ideal selectivity of 60. Based on mixed gas permeances and time-lag measurements, the separation of CO2 and CH4 was found to be dominated by the difference in the gas solubilities. The SAPO-34 decreased CH4 transport by increasing its diffusion pathway. Particle agglomeration was observed at 10 wt% zeolite loading in the polymeric matrix.

Original languageEnglish
Article number12299
Pages (from-to)38-48
Number of pages11
JournalSeparation and Purification Technology
Volume148
DOIs
Publication statusPublished - Jun 25 2015
Externally publishedYes

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Polyetherimides
Methane
Ethylene Dichlorides
Carbon Dioxide
Carbon dioxide
Membranes
Zeolites
Polymers
Gases
Hybrid materials
Time measurement
Fillers
Agglomeration
Solubility
polyetherimide

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Filtration and Separation

Cite this

Mixed matrix membranes using SAPO-34/polyetherimide for carbon dioxide/methane separation. / Belhaj Messaoud, Souha; Takagaki, Atsushi; Sugawara, Takashi; Kikuchi, Ryuji; Oyama, S. Ted.

In: Separation and Purification Technology, Vol. 148, 12299, 25.06.2015, p. 38-48.

Research output: Contribution to journalArticle

Belhaj Messaoud, Souha ; Takagaki, Atsushi ; Sugawara, Takashi ; Kikuchi, Ryuji ; Oyama, S. Ted. / Mixed matrix membranes using SAPO-34/polyetherimide for carbon dioxide/methane separation. In: Separation and Purification Technology. 2015 ; Vol. 148. pp. 38-48.
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