Clariant Offers HNO3 Producers Free N2O-Removal Catalyst

  • Author: ChemistryViews
  • Published: 24 November 2021
  • Copyright: Wiley-VCH GmbH
  • Associated Suppliers: Clariant AG, Muttenz, Switzerland
thumbnail image: Clariant Offers HNO<sub>3</sub> Producers Free N<sub>2</sub>O-Removal Catalyst

Clariant has started a global campaign to reduce the impact of N2O on climate change and is offering ten nitric acid producers who do not use N2O exhaust gas treatment a free fill of its EnviCat® N2O-S catalyst. EnviCat® N2O-S catalyst converts up to 95 % of the N2O (formed as a by-product of nitric acid production) into oxygen and nitrogen. The catalyst is based on transition metal exchanged zeolites. It is available in bulk and honeycomb form, can be used across a wide range of operating conditions and temperatures, and is designed as a "drop-in" solution, so that it can be installed easily with almost no engineering modifications. In addition to the climate benefits, according to the manufacturer, the catalyst can also slightly increase the nitric acid yield by improving the efficiency of the ammonia oxidation process.

Over 60 million tons of nitric acid are produced annually worldwide, mainly for the manufacture of fertilizers. During their production, N2O is released. The greenhouse gas remains in the atmosphere for about 114 years and thus impacts global warming around 300 times more than CO2. According to the IPCC, 5th Assessment Report, Climate Change 2014, the N2O emissions from the production of nitric acid and its derivative adipic acid correspond to around 100 million tons of CO2 annually. According to Clariant, there are no obligations associated with the offer of the catalyst. However, the company hopes that it will stimulate nitric acid producers to change to a more climate-friendly production.

Of the around 500 nitric acid plants in operation worldwide, more than half run without N2O reduction, mostly in regions without applicable emission control regulations. Clariant's EnviCat N2O catalysts are installed in more than 45 nitric acid production plants around the world.




Article Views: 1013

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, please contact us first for permission and consult our permission guidance prior to making your request

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