EP 0147961 B1 19890405 - PASSIVATION OF CRACKING CATALYST
Title (en)
PASSIVATION OF CRACKING CATALYST
Publication
Application
Priority
- US 55989183 A 19831209
- US 55991883 A 19831209
Abstract (en)
[origin: EP0147961A2] A process for passivating the adverse catalytic effects of metal contaminants, such as nickel, vanadium and iron, in a cracking system comprising a reaction zone (10), a regeneration zone (26) and a passivation zone (90), wherein a passivation promoter selected from the group consisting of cadmium-tin mixtures, cadmium, germanium, indium, tellurium and zinc and mixtures thereof is added to the cracking system. The passivation zone (90) is maintained at an elevated temperature and may also have a reducing atmosphere.
IPC 1-7
IPC 8 full level
C10G 11/04 (2006.01); C10G 11/18 (2006.01)
CPC (source: EP)
C10G 11/04 (2013.01); C10G 11/18 (2013.01); C10G 11/187 (2013.01)
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
EP 0147961 A2 19850710; EP 0147961 A3 19861230; EP 0147961 B1 19890405; CA 1240946 A 19880823; DE 3477577 D1 19890511
DOCDB simple family (application)
EP 84308521 A 19841207; CA 468697 A 19841127; DE 3477577 T 19841207