Estimating the efficiency of some industrial domestic catalysts in ammonia decomposition

Abstract

Import substitution industrialization makes it necessary to adapt domestic industrial catalysts for the application in important technological processes, particularly the environmentally friendly production of hydrogen, which is not accompanied by the emission of СОх and NОх. Ammonia is considered as the most promising medium for hydrogen storage due to its high density with respect to hydrogen as well as convenient storage and transportation. The paper demonstrates the possibility of using industrial domestic catalysts NIAP-03-01, NIAP-07-01, NIAP-06-06 and the developed by our team Со-Al2O3 /SiO2 in the reaction of ammonia dissociation. The conversion and the hydrogen production rate increase in the series NIAP-06-06 – NIAP-03-01 – NIAP-07-01 – Со-Al2O3 /SiO2. At 550 °С and OSG 3000 h–1 the conversion of ammonia on Со-Al2O3 /SiO2 is close to 100 %. Effective activation energies of all the catalysts are comparable with the literature data for the ammonia decomposition reaction; so these catalysts are potentially applicable at moderate temperatures.