Hydrogen purification using natural zeolite-loaded hydroxyethyl cellulose membrane

Unugul T., UĞUR NİGİZ F.

INTERNATIONAL JOURNAL OF ENERGY RESEARCH, vol.46, no.2, pp.1826-1836, 2022 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 46 Issue: 2
  • Publication Date: 2022
  • Doi Number: 10.1002/er.7299
  • Journal Name: INTERNATIONAL JOURNAL OF ENERGY RESEARCH
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Aquatic Science & Fisheries Abstracts (ASFA), Communication Abstracts, Compendex, Environment Index, INSPEC, Metadex, Pollution Abstracts, Civil Engineering Abstracts
  • Page Numbers: pp.1826-1836
  • Keywords: hydrogen purification, hydroxyethyl cellulose, membrane gas separation, mixed-matrix membrane, zeolite
  • Çanakkale Onsekiz Mart University Affiliated: Yes

Abstract

In this study, natural zeolite-loaded hydroxyethyl cellulose (HEC) mixed-matrix membranes were produced and used for separation of hydrogen (H-2) from carbon dioxide (CO2). Structural, thermal, and morphological properties of the mixed-matrix membranes were investigated. The effects of zeolite addition and trans-membrane pressure on the gas permeability and H-2/CO2 selectivity have been evaluated. As the zeolite ratio in the membrane increased, H-2/CO2 selectivity increased. The highest H-2/CO2 selectivity of 8.85 was obtained using 20 wt% of natural zeolite-loaded membrane at a constant pressure difference of 4 bar. The selectivity and permeability values of 20 wt% zeolite-loaded membrane exceeded the Robeson's upper bound curve-1991.