Abstract: A composition for controlling NOx emissions during FCC processes comprises (i) an acidic oxide support, (ii) cerium oxide, (iii) a lanthanide oxide other than ceria such as praseodymium oxide, and (iv), optionally, an oxide of a metal from Groups Ib and IIb such as copper, silver and zinc.
Type:
Application
Filed:
January 13, 2004
Publication date:
July 22, 2004
Applicant:
Engelhard
Inventors:
C.P. Kelkar, David Stockwell, Samuel Tauster