ADDITIVE FOR REDUCING SOX GAS EMISSION IN HYDROCARBON FLUID CATALYTIC CRACKING UNITS

摘要

The present invention provides additives for reducing SOx emission in hydrocarbon fluid catalytic cracking units, prepared on the basis of an alumina substrate, with a large surface area of at least 150 m2/g and a large pore volume of at least 0.25 cm3/g, and containing calcium in a concentration of at least 5% in the form of calcium oxide and an oxyreduction promoter in a concentration range from 1 to 5% m/m in the form of the oxide thereof.