Temporary shutdown of co-combustion devices

Details Temporary shutdown of co-combustion devices Temporary shutdown of co-combustion devices

1977-09-12

1979-03-27

Gantz, Delbert E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208113, 208121, 208164, 252416, 252417, 252477R, C10G 1104, C01B 2912, B01J 824

Patent

active

041464648

ABSTRACT:
A metal combustion promoter is introduced into the circulating inventory of catalyst in the catalytic cracking process to temporarily change the operating mode of the regenerator and decrease the CO content of the flue gas, thus permitting temporary shutdown of the CO-boiler or CO-incinerator, while continuing operation of the catalytic cracking process. The metal combustion promoters are compounds of platinum, iridium, osmium, palladium, rhodium, ruthenium, or rhenium. The described technique permits rapid shutdown and minimizes the time of operation outside of compliance with local or other ordinances.

REFERENCES:
patent: 2436927 (1948-03-01), Kassel
patent: 3364136 (1968-01-01), Chen et al.
patent: 3650990 (1972-03-01), Frilette et al.
patent: 3696025 (1972-10-01), Chessmore et al.
patent: 3788977 (1974-01-01), Dolbear et al.
patent: 3849291 (1974-11-01), Owen et al.
patent: 4006075 (1977-02-01), Luckenbach
patent: 4064039 (1977-12-01), Penick
patent: 4072600 (1978-02-01), Schwartz

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