METODO PARA EXTRAER SOX DE GAS QUE LO CONTIENE EN UNIDAD DE FCC QUE COMPRENDE CONTACTAR EL GAS CON ADITIVO REMOVEDOR DE SOX, EL CUAL ESTA LIBRE DE VA, EL ADITIVO COMPRENDE ABSORBENTE CON FUENTE DE A1, COMPONENTE DIVALENTE SELECCIONADO DE MG Y CA Y CA

摘要

The sulfur oxide removing additive suitable for a FCC unit at low oxygen environment condition is described. The SO_x removing additive includes one or more sorbents and one or more oxidation catalysts. The sorbent includes a source of Al and a divalent component. The divalent component is selected from a group consisting of magnesium, calcium, and combinations of two or more. The oxidation catalyst includes a source of cerium The SOx removing additive is substantially free of vanadium. Also described is a method of removing the sulfur oxide content of a sulfur oxide-containing gas from an FCC unit. The method includes contacting the gas with a SO_x removing additive at a low oxygen environment condition.