Passivating metals on cracking catalysts

Details Passivating metals on cracking catalysts Passivating metals on cracking catalysts

1978-07-31

1979-09-11

Gantz, Delbert E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

208 48R, 208 48AA, 208113, 208114, 252437, 260446, 423617, C10G 1106, C10G 916, B01J 824

Patent

active

041674715

ABSTRACT:
Metals such as nickel, vanadium and iron contaminating a cracking catalyst are passivated by contacting the contaminated catalyst with a passivating agent dissolved in a secondary feedstock stream having a temperature sufficiently low to avoid or minimize decomposition of the passivating agent.

REFERENCES:
patent: 3647677 (1972-03-01), Wolff et al.
patent: 3711422 (1973-01-01), Johnson et al.
patent: 3776835 (1973-12-01), Dvoracek
patent: 3812029 (1974-05-01), Snyder
patent: 3977963 (1976-08-01), Readal et al.
patent: 4024049 (1977-05-01), Shell et al.
patent: 4025458 (1977-05-01), McKay
patent: 4031002 (1977-06-01), McKay
patent: 4097366 (1978-06-01), Tanaka et al.

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