CATALYST ADDITIVES FOR THE REMOVAL OF NH3 AND HCN FROM A GAS FLUE OF A REGENERATION ZONE IN A CATALYTIC CRACKING PROCESS

摘要

In the regeneration of a cracking catalyst in a regeneration zone operated in a partial combustion mode, NH3 and HCN in the regenerator flue gas are reduced by incorporating into the regenerator precious metals such as ruthenium, rhodium, iridium, or mixtures thereof.