300°C Proton-Exchange Membrane for Low-Pressure Electrolytic Ammonia Synthesis

Presented on November 12, 2019 during the Ammonia Energy Conference 2019

Authors Ted Aulich University of North Dakota

Download this Presentation Download a PDF version of this presentation.

Abstract

The two North Dakota universities and Proton OnSite are developing a 300°C-capable polymer–inorganic composite (PIC) proton exchange membrane for low-pressure (15-psi) ammonia synthesis. The PIC membrane comprises an inorganic proton conductor strategically composited within a high-temperature polymer to enable a proton conductivity of 10-2 siemens/centimeter at 300°C. Integrated with appropriate low-cost anode and cathode catalysts in a membrane–electrode assembly, the gas-impermeable PIC membrane is projected to enable ammonia production at a total energy input of about 6400 kilowatt-hours/ton (kWh/ton), versus about 8500 kWh/ton for state-of-the-art Haber Bosch-based ammonia production. The PIC membrane will also have application in high-temperature water electrolysis for lower power-consumption lower-cost high-purity hydrogen production. Data and information regarding PIC membrane fabrication, performance, and durability will be presented.

Topics Improved Haber-Bosch

Authors taulich@undeerc.org

IMO Webinar

Please join us for this informative webinar. Click here to register and get the details!

Annual Conference Presentations available

Presentations from the AEA Annual Conference are now available on the website. The presentations are organized by session and speaker within the conference schedule for your convenience.

2023 Annual Report

In 2023, AEA reached many milestones. Read about them in our 2023 Annual Report.