Process for the regeneration of catalysts for steam cracking

Details Process for the regeneration of catalysts for steam cracking Process for the regeneration of catalysts for steam cracking

2001-11-21

2008-10-28

Caldarola, Glenn (Department: 1797)

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

By c content reduction, e.g., cracking, etc.

C585S651000, C585S652000, C208S122000, C208S123000, C208S130000, C502S055000, C502S056000, C502S312000, C502S322000, C502S341000, C423S600000, C423S119000

Reexamination Certificate

active

07442846

ABSTRACT:
Process for the regeneration of exhausted catalysts, containing one or more calcium aluminates, for steam cracking reactions, comprising treating said exhausted catalysts in a stream of water vapour at a temperature ranging from 700 to 950° C., preferably from 720 to 850° C., and at a pressure ranging from 0.5 to 2 atm.

REFERENCES:
patent: 3767567 (1973-10-01), Kikuchi et al.
patent: 3969542 (1976-07-01), Tomita et al.
patent: 4244811 (1981-01-01), Grenoble et al.
patent: 5220091 (1993-06-01), Brinkmeyer et al.
patent: 243 647 (1987-03-01), None
patent: 0 323 784 (1989-07-01), None
U.S. Appl. No. 09/614,168, filed Jul. 11, 2000, Amarilli, et al.

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