Passivating metals on cracking catalysts with tellurium

Details Passivating metals on cracking catalysts with tellurium Passivating metals on cracking catalysts with tellurium

1979-03-08

1980-08-19

Konopka, P. E.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252414, 252416, 252439, B01J 2730, B01J 2702, C10G 1102, B01J 2938

Patent

active

042183375

ABSTRACT:
A novel cracking catalyst, a method of preparing same and an improved hydrocarbon cracking process are provided wherein adverse effects of metals such as nickel, vanadium and iron in the cracking catalyst are precluded or mitigated by contacting the cracking catalyst with at least one treating agent selected from the group consisting of elemental tellurium, oxides of tellurium and compounds convertible to elemental tellurium or oxide thereof during cracking or catalyst regeneration, whereby to said cracking catalyst is added a modifying amount of said treating agent.

REFERENCES:
patent: 2129693 (1938-09-01), Houdry
patent: 2511453 (1950-06-01), Barry
patent: 3491162 (1970-01-01), Bloch
patent: 3494970 (1970-02-01), Pharis
patent: 3583903 (1971-06-01), Miale
patent: 3711422 (1973-01-01), Johnson et al.
patent: 4025458 (1977-05-01), McKay
patent: 4031002 (1977-06-01), McKay
patent: 4111845 (1978-09-01), McKay

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