Kavala Fertilizers LTD installed recently the prototype TertiNOx catalytic system designed by Proton and Haldor Topsoe. The decrease of the NOx and N2O emissions achieves more than 90%. The international technical sites refer on it.

Topsoe starts up first TertiNOx system at a fertilizer plant in Greece (indianchemicalnews.com)

Successful startup of first TertiNOx™ catalyst reference to reduce harmful N₂O and NOx in nitric acid industry (topsoe.com)

Startup of first TertiNOx catalyst reference to reduce harmful N₂O and NOx in nitric acid industry - Chemical Engineering | Page 1 (chemengonline.com)

Topsoe and Proton start-up TertiNOx catalyst reference | News | gasworld

Haldor Topsoe Announces Successful Startup of First Tertinox Catalyst Reference (process-worldwide.com)