Author: Issei Tsuji

Presentation

Catalyst Solutions for Clean Ammonia Energy: From Emission Control to Ammonia Cracking

Nikki Universal’s exhaust gas treatment catalysts offer solutions to eliminate ammonia slip, NOx and N2O contaminants, and this presentation examines emissions results from full-scale engine testing in collaboration with IHI. NU also offers an ammonia cracking catalyst, which is used in a commercially-available ammonia burner (Sunflame and Kashiwa Tech).

Presentation

Exhaust gas treatment catalysts for ammonia-fueled engines

Issei Tsuji Tomoo Ikoma Hiroki Okamoto Nobuyuki Aoi Toshiya Nashida Yasushi Fujimura

Ammonia is expected to be a promising zero-emission fuel because it does not emit CO2 during combustion. However, the exhaust gas from the actual ammonia-fueled engines contains unburned ammonia, nitrogen oxides (NOx), and nitrous oxide (N2O), and there is a need to develop technologies to remove these harmful substances. Unburned ammonia can be removed by a catalytic combustion method using a conventional oxidation catalyst, but NOx and N2O are simultaneously generated as byproducts. Therefore, Nikki-Universal has developed a new catalyst that can remove ammonia at high efficiency while reducing the generation of NOx and N2O. We have also developed a…