HYDROGEN PRODUCTION METHOD AND CATALYST

摘要

The present application discloses a method for producing hydrogen by catalytic decomposition of ammonia from acid water units. In a first step, the ammonia stream is purified in contact with various catalytic beds, removing chlorides and sulfur, and more specifically, ammonia is partially transformed into hydrogen in the bed formed by a catalyst based on alkalis and alkaline earths, supported on zinc oxide, alumina, silica-alumina and mixtures thereof, with nickel oxide as the active phase. In the second step, the purified ammonia stream is fed to the steam reforming reactor to generate hydrogen which is then purified. The application also relates to the catalyst used in the method.