Green Ammonia Production

  • Author: Angewandte Chemie International Edition
  • Published Date: 21 October 2020
  • Source / Publisher: Angewandte Chemie International Edition/Wiley-VCH
  • Copyright: Wiley-VCH GmbH
thumbnail image: Green Ammonia Production

Industrial ammonia production is currently dominated by large, natural-gas-fueled Haber-Bosch plants, which can be difficult to electrify and produce large amounts of CO2. Small, distributed ammonia plants running on local renewable energy could be game-changers for a future with reduced CO2 emissions.


Johan A. Martens, KU Leuven, Belgium, and colleagues have developed a new process that is suitable for such a distributed, small-scale production of ammonia. The process, called PNOCRA (Plasma Nitrogen Oxidation and Catalytic Reduction to Ammonia), combines nitrogen oxidation using plasma technology with exhaust-gas purification technology from the automobile sector. Plasma converts N2 and O2 molecules from air into nitrogen oxides (NOx), which are collected by adsorption and periodically reduced to ammonia using "green" hydrogen (overall process pictured below).

 


The energy requirement of PNOCRA is significantly lower than for the state-of-the-art plasma-based NH3 production directly from N2 and H2. The PNOCRA process is an example for the rapidly evolving field of plasma catalysis and is particularly attractive for the local production of nitrogen fertilizers for agriculture.


 

 

Article Views: 1877

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

If you would like to reuse any content, in print or online, from ChemistryViews.org, please contact us first for permission. more

Follow on Facebook Follow on Twitter Follow on YouTube Follow on LinkedIn Follow on Instagram RSS Sign up for newsletters

Magazine of Chemistry Europe (16 European Chemical Societies) published by Wiley-VCH