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Title: Superhydrophobic and superhydrophilic surface-enhanced separation performance of porous inorganic membranes for biomass-to-biofuel conversion applications

Abstract

A new class of inorganic-based membranes, i.e., High-Performance Architectured Surface Selective (HiPAS) membranes, is introduced to provide high perm-selective flux by exploiting unique separation mechanisms induced by superhydrophobic or superhydrophilic surface interactions and confined capillary condensation in enlarged membrane pores (~8 nm). The super-hydro-tunable HiPAS membranes were originally developed for the purpose of bio-oil/biofuel processing to achieve selective separations at higher flux relative to size selective porous membranes (e.g., inorganic zeolite-based membranes) and better high-temperature tolerance than polymer membranes (>250 C) for hot vapor processing. Due to surface-enhanced separation selectivity, HiPAS membranes can thus possibly enable larger pores to facilitate large-flux separations by increasing from sub-nanometer pores to mesopores (2-50 nm) for vapor phase or micron-scale pores for liquid phase separations. In this paper, we describe an innovative membrane concept and a materials synthesis strategy to fabricate HiPAS membranes, and demonstrate selective permeation in both vapor- and liquid-phase applications. High permeability and selectivity were demonstrated using surrogate mixtures, such as ethanol-water, toluene-water, and toluene-phenol-water. The overall membrane evaluation results show promise for the future processing of biomass pyrolysis and upgraded product vapors and condensed liquid bio-oil intermediates.

Authors:
 [1];  [2];  [1];  [1];  [1];  [2]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. National Renewable Energy Lab. (NREL), Golden, CO (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). High Temperature Materials Lab. (HTML); National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Bioenergy Technologies Office (EE-3B)
OSTI Identifier:
1338488
Alternate Identifier(s):
OSTI ID: 1344167
Report Number(s):
NREL/JA-5900-65224
Journal ID: ISSN 0149-6395; BM0101010; CEBM007
Grant/Contract Number:  
AC05-00OR22725; AC36-08GO28308
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Separation Science and Technology
Additional Journal Information:
Journal Name: Separation Science and Technology; Journal ID: ISSN 0149-6395
Publisher:
Taylor & Francis
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 09 BIOMASS FUELS; membranes; inorganic membranes; porous membranes; superhydrophobic; superhydrophilic; coatings; biofuel separations

Citation Formats

Hu, Michael Z., Engtrakul, Chaiwat, Bischoff, Brian L., Jang, Gyoung G., Theiss, Timothy J., and Davis, Mark F.. Superhydrophobic and superhydrophilic surface-enhanced separation performance of porous inorganic membranes for biomass-to-biofuel conversion applications. United States: N. p., 2016. Web. doi:10.1080/01496395.2016.1260144.
Hu, Michael Z., Engtrakul, Chaiwat, Bischoff, Brian L., Jang, Gyoung G., Theiss, Timothy J., & Davis, Mark F.. Superhydrophobic and superhydrophilic surface-enhanced separation performance of porous inorganic membranes for biomass-to-biofuel conversion applications. United States. doi:10.1080/01496395.2016.1260144.
Hu, Michael Z., Engtrakul, Chaiwat, Bischoff, Brian L., Jang, Gyoung G., Theiss, Timothy J., and Davis, Mark F.. Mon . "Superhydrophobic and superhydrophilic surface-enhanced separation performance of porous inorganic membranes for biomass-to-biofuel conversion applications". United States. doi:10.1080/01496395.2016.1260144. https://www.osti.gov/servlets/purl/1338488.
@article{osti_1338488,
title = {Superhydrophobic and superhydrophilic surface-enhanced separation performance of porous inorganic membranes for biomass-to-biofuel conversion applications},
author = {Hu, Michael Z. and Engtrakul, Chaiwat and Bischoff, Brian L. and Jang, Gyoung G. and Theiss, Timothy J. and Davis, Mark F.},
abstractNote = {A new class of inorganic-based membranes, i.e., High-Performance Architectured Surface Selective (HiPAS) membranes, is introduced to provide high perm-selective flux by exploiting unique separation mechanisms induced by superhydrophobic or superhydrophilic surface interactions and confined capillary condensation in enlarged membrane pores (~8 nm). The super-hydro-tunable HiPAS membranes were originally developed for the purpose of bio-oil/biofuel processing to achieve selective separations at higher flux relative to size selective porous membranes (e.g., inorganic zeolite-based membranes) and better high-temperature tolerance than polymer membranes (>250 C) for hot vapor processing. Due to surface-enhanced separation selectivity, HiPAS membranes can thus possibly enable larger pores to facilitate large-flux separations by increasing from sub-nanometer pores to mesopores (2-50 nm) for vapor phase or micron-scale pores for liquid phase separations. In this paper, we describe an innovative membrane concept and a materials synthesis strategy to fabricate HiPAS membranes, and demonstrate selective permeation in both vapor- and liquid-phase applications. High permeability and selectivity were demonstrated using surrogate mixtures, such as ethanol-water, toluene-water, and toluene-phenol-water. The overall membrane evaluation results show promise for the future processing of biomass pyrolysis and upgraded product vapors and condensed liquid bio-oil intermediates.},
doi = {10.1080/01496395.2016.1260144},
journal = {Separation Science and Technology},
number = ,
volume = ,
place = {United States},
year = {Mon Nov 14 00:00:00 EST 2016},
month = {Mon Nov 14 00:00:00 EST 2016}
}

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Works referenced in this record:

The Path Forward for Biofuels and Biomaterials
journal, January 2006

  • Ragauskas, Arthur J.; Williams, Charlotte K.; Davison, Brian H.
  • Science, Vol. 311, Issue 5760, p. 484-489
  • DOI: 10.1126/science.1114736