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

Chaiwat Engtrakul, Michael Hu, Brian Bischoff, Gyoung Jang

Research output: Contribution to journalArticlepeer-review

5 Scopus Citations

Abstract

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 used 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 one-ring upgraded biomass pyrolysis hydrocarbons was observed as a result of 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.

Original languageAmerican English
Pages (from-to)8343-8348
Number of pages6
JournalEnergy and Fuels
Volume30
Issue number10
DOIs
StatePublished - 20 Oct 2016

Bibliographical note

Publisher Copyright:
© 2016 American Chemical Society.

NREL Publication Number

  • NREL/JA-5900-66719

Keywords

  • catalytic fast pyrolysis
  • inorganic membrane
  • porous membrane
  • superhydrophilic
  • superhydrophobic
  • upgraded pyrolysis vapors

Fingerprint

Dive into the research topics of 'Surface-Enhanced Separation of Water from Hydrocarbons: Potential Dewatering Membranes for the Catalytic Fast Pyrolysis of Pine Biomass'. Together they form a unique fingerprint.

Cite this