TechConnect Innovation Program

Hollow Fiber Membranes for Osmotic Power Generation via Pressure Retarded Osmosis (PRO)

National University of Singapore, Singapore, Singapore

TECHNOLOGY SUMMARY

The technology relates to polyethersulfone hollow fiber membranes for osmotic power generation via PRO. The membranes can withstand a hydraulic pressure of up to 20 bar and produce 24 W/m2 of energy when 1M NaCl (~seawater brine) and 10mM NaCl (~river water) is used as draw and feed solution respectively.

Primary Application Area: Renewable & Hydrogen Energy

Technology Development Status: Prototype

Technology Readiness Level: TRL 2

FIGURES OF MERIT

Value Proposition: Polymer used for membrane is low cost and widely available. Hollow fiber configuration means it has a smaller footprint for the same membrane surface area compared to spiral wound membranes. Higher pressure tolerance means there is higher energy conservation when high pressure draw solution (eg RO brine) is used.

SHOWCASE SUMMARY

Organization Type: Academic/Gov Lab

Showcase Booth #: 717

GOVT/EXTERNAL FUNDING SOURCES

Government Funding/Support to Date: Singapore government grant.

Primary Sources of Funding: Federal Grant, University

Looking for: Both Funding and Development Partners