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Title: Surface-Enhanced Separation of Water from Hydrocarbons: Potential Dewatering Membranes for the Catalytic Fast Pyrolysis of Pine Biomass

The impact of surface-selective coatings on water permeation through a membrane when exposed to catalytic fast pyrolysis (CFP) vapor products was studied by tailoring the surface properties of the membrane coating from superhydrophilic to superhydrophobic. Our approach utilized high-performance architectured surface-selective (HiPAS) membranes that were inserted after a CFP reactor. At this insertion point, the inner wall surface of a tubular membrane was exposed to a mixture of water and upgraded product vapors, including light gases and deoxygenated hydrocarbons. Under proper membrane operating conditions, a high selectivity for water over 1-ring upgraded biomass pyrolysis hydrocarbons was observed due to a surface-enhanced capillary condensation process. Owing to this surface-enhanced effect, HiPAS membranes have the potential to enable high flux separations suggesting that water can be selectively removed from the CFP product vapors.
Authors:
 [1] ;  [2] ;  [2] ;  [2]
  1. National Renewable Energy Laboratory (NREL)
  2. ORNL
Publication Date:
Grant/Contract Number:
AC05-00OR22725
Type:
Accepted Manuscript
Journal Name:
Energy and Fuels
Additional Journal Information:
Journal Volume: 30; Journal ID: ISSN 0887-0624
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Country of Publication:
United States
Language:
English
OSTI Identifier:
1337033

Engtrakul, Dr. Chaiwat, Hu, Michael Z., Bischoff, Brian L, and Jang, Gyoung Gug. Surface-Enhanced Separation of Water from Hydrocarbons: Potential Dewatering Membranes for the Catalytic Fast Pyrolysis of Pine Biomass. United States: N. p., Web. doi:10.1021/acs.energyfuels.6b01851.
Engtrakul, Dr. Chaiwat, Hu, Michael Z., Bischoff, Brian L, & Jang, Gyoung Gug. Surface-Enhanced Separation of Water from Hydrocarbons: Potential Dewatering Membranes for the Catalytic Fast Pyrolysis of Pine Biomass. United States. doi:10.1021/acs.energyfuels.6b01851.
Engtrakul, Dr. Chaiwat, Hu, Michael Z., Bischoff, Brian L, and Jang, Gyoung Gug. 2016. "Surface-Enhanced Separation of Water from Hydrocarbons: Potential Dewatering Membranes for the Catalytic Fast Pyrolysis of Pine Biomass". United States. doi:10.1021/acs.energyfuels.6b01851. https://www.osti.gov/servlets/purl/1337033.
@article{osti_1337033,
title = {Surface-Enhanced Separation of Water from Hydrocarbons: Potential Dewatering Membranes for the Catalytic Fast Pyrolysis of Pine Biomass},
author = {Engtrakul, Dr. Chaiwat and Hu, Michael Z. and Bischoff, Brian L and Jang, Gyoung Gug},
abstractNote = {The impact of surface-selective coatings on water permeation through a membrane when exposed to catalytic fast pyrolysis (CFP) vapor products was studied by tailoring the surface properties of the membrane coating from superhydrophilic to superhydrophobic. Our approach utilized high-performance architectured surface-selective (HiPAS) membranes that were inserted after a CFP reactor. At this insertion point, the inner wall surface of a tubular membrane was exposed to a mixture of water and upgraded product vapors, including light gases and deoxygenated hydrocarbons. Under proper membrane operating conditions, a high selectivity for water over 1-ring upgraded biomass pyrolysis hydrocarbons was observed due to a surface-enhanced capillary condensation process. Owing to this surface-enhanced effect, HiPAS membranes have the potential to enable high flux separations suggesting that water can be selectively removed from the CFP product vapors.},
doi = {10.1021/acs.energyfuels.6b01851},
journal = {Energy and Fuels},
number = ,
volume = 30,
place = {United States},
year = {2016},
month = {1}
}