Graphene Oxide-Based Composite Membranes for Energy Efficient Ethanol Dehydration


Biofuels, such as ethanol, are in high demand, especially since the United States began using ethanol as an additive to gasoline. Ethanol can be obtained through fermentation of suitable biomass using distillation processes. These processes are based on differing boiling points of ethanol and water. The goal is to minimize the water content in ethanol so that the gasoline and ethanol mixture is anhydrous. The final step in the dehydration process is expensive, energy inefficient, and releases exhaust/emissions. A membrane for ethanol purification that's more energy efficient is needed.


A pervaporation (PV) membrane has been created that combines an electrospun nanofibrous scaffold and a graphene oxide (GO) barrier layer. It's produced by casting a GO barrier layer on the nanofibrous scaffold. The fibers in the scaffold have a diameter from around 1 to 20,000 nm, and the barrier layer has a thickness from around 5 to 5,000 nm.


-Improved permeation flux -Improved separation factor in pervaporation applications -Less expensive and more energy efficient


-Pervaporation applications -Ethanol dehydration

Patent Status


Stage Of Development


Licensing Potential

Licensing,Development partner,Commercial partner

Licensing Status

Available for licensing.

Additional Info Please note, header image is purely illustrative. Source: MC3 Devin Wray/U.S. Navy. Wikimedia Commons, public domain.
Patent Information:
Case ID: R8555
For Information, Contact:
Donna Tumminello
Assistant Director
State University of New York at Stony Brook
Benjamin Chu
Benjamin Hsiao
Devinder Mahajan
Tsung-Ming Yeh