Mitigation potentials for emissions of nitrous oxide from chemical industry

The investigated countries and regions contributing most to N2O emissions are Russia, the USA, the EU, Australia and Trinidad and Tobago for nitric acid production, the USA for adipic acid production, and the EU, the USA and Russia for caprolactam production. [...] The study was launched by the Secretariat of the Nitric Acid Climate Action Group (NACAG1), a global climate change initiative launched by the German Government with the objective to globally support the mitigation of N2O emissions from nitric acid production in developing countries. [...] Table 4: N2O emissions from Australian nitric acid production nitric acid N2O emissions N2O N2O emissions production nitric acid production, emissions nitric acid production, million including 'other N2O product from 'other excluding 'other N2O product tonnes use' product use' use' (100% nitric acid) kt N2O kg N2O / t nitric acid kt N2O kt N2O kg N2O / t nitric acid reported by Australia to UNFCCC. [...] The uncertainty of N2O emissions from nitric acid production in the Canadian Inventory is indicated with 0.8 % to 1 % for the period of 2012-2020 where the emission factors were the largest contributors to the uncertainty, while available information on production is considered to be of high data quality (Environment and Climate Change Canada 2022). [...] • 9 % for N2O emissions from adipic acid production • 99% for N2O emissions from caprolactam The methodology applied by Japan to conclude on the rather high uncertainties for N2O emissions from nitric acid production and caprolactam production employs a calculation of the standard deviation from the emission factors and production amounts of each plant (Japan 2022b).