Superhydrophobic and Superhydrophilic Surface-Enhanced Separation Performance of Porous Inorganic Membranes for Biomass-to-Biofuel Conversion Applications

Chaiwat Engtrakul, Mark Davis, Michael Hu, Brian Bischoff, Gyoung Jang, Timothy Theiss

Research output: Contribution to journalArticlepeer-review

6 Scopus Citations

Abstract

A new class of porous membranes is introduced to provide unique separation mechanisms by surface interactions and capillary condensation. High-performance architectural surface selective (HiPAS) membranes were designed for high perm-selective flux and high-temperature tolerance for hot vapor processing and liquid processing. Due to surface-enhanced selectivity, larger-fluxes were achieved by utilizing larger pore sizes (~8 nm for vapor phase and micron-sized pores for liquid phase separations). This article describes a membrane-based separation concept for biomass conversion pathways and demonstrates the initial data for selective permeation of toluene–water and toluene–phenol–water relevant to biofuel processing.

Original languageAmerican English
Pages (from-to)528-543
Number of pages16
JournalSeparation Science and Technology (Philadelphia)
Volume52
Issue number3
DOIs
StatePublished - 11 Feb 2017

Bibliographical note

Publisher Copyright:
© 2017 Taylor & Francis.

NREL Publication Number

  • NREL/JA-5900-65224

Keywords

  • Biofuel separations
  • inorganic membranes
  • porous membranes
  • superhydrophilic
  • superhydrophobic

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