Patent ID: 6379536
Filing Date: 2002-04-30
Classification: B01D,B01J,C10G

Abstract:
A NOx removal composition suitable for reducing NOx emissions in the presence of a CO oxidation promoter during catalyst regeneration in a fluid catalytic cracking process, said composition comprising particles having a particle size of about 20-200 &mgr;m and comprising (i) an acidic oxide support containing at least 50 wt % alumina, (ii) about 1-10 parts by weight of magnesium oxide; (iii) at least 1 part by weight of CeO2 and (iv) about 0.01-5.0 parts by weight, measured as metal oxide, of a transition metal selected from Group Ib of the Periodic Table, all of said parts by weight being per 100 parts by weight of said acidic oxide support material.