Amine-bearing mesoporous silica for CO2 and H2S removal from natural gas and biogas

Youssef Belmabkhout, Guy De Weireld, Abdelhamid Sayari*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

142 Scopus citations

Abstract

Triamine-grafted pore-expanded mesoporous silica (TRI-PE-MCM-41) exhibited high CO2 and H2S adsorption capacity as well as high selectivity toward acid gases versus CH4. Unlike physical adsorbents such as zeolites and activated carbons, the presence of moisture in the feed enhanced the CO2 removal capability of RI-PE-MCM-41 without altering its H2S adsorption capacity. Thus, depending on the feed composition, CO2 and H2S may be removed over TRI-PE-MCM-41 simultaneously or sequentially. These findings are suitable for acid gas separation from CH4-containing mixtures such as natural gas and biogas.

Original languageEnglish (US)
Pages (from-to)13275-13278
Number of pages4
JournalLangmuir
Volume25
Issue number23
DOIs
StatePublished - Dec 1 2009

ASJC Scopus subject areas

  • Electrochemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Materials Science(all)
  • Spectroscopy

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