Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking
Patent
1981-04-03
1983-11-29
Konopka, P. E.
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Cracking
208113, 208164, 422144, 502 55, C10G 1105, C10G 1118, B01J 2938, B01J 2120
Patent
active
044179758
ABSTRACT:
A process for economically converting carbo-metallic oils to lighter products. This process comprises flowing the carbo-metallic oil together with particulate cracking catalyst through a progressive flow type reactor having an elongated reaction chamber, which is at least in part vertical or inclined, for a predetermined vapor riser residence time in the range of about 0.5 to about 10 seconds, at a temperature of about 900 to about 1400.degree. F., and under a pressure of about 10 to about 50 pounds per square inch absolute sufficient for causing a conversion per pass in the range of about 50% to about 90% while producing coke in amounts in the range of about 6 to about 14% by weight based on fresh feed, and laying down coke on the catalyst in amounts in the range of about 0.3 to about 3% by weight. The spent, coke-laden catalyst from the stream of hydrocarbons formed by vaporized feed and resultant cracking products is separated and regenerated in one or more regeneration beds in one or more regeneration zones by burning the coke on the spent catalyst with oxygen. The bed density is in the range of about 25 to about 50 pounds per cubic foot and the bed or beds are sustained by fluidization gas containing combustion-supporting gas having a linear velocity in the range of about 0.2 to about 4 feet per second. Liquid water is added to the bed or beds in a weight ratio of water to converter feed from about 0.01 to about 0.5 to at least partly absorb the heat produced by the burning coke.
REFERENCES:
patent: 2374660 (1945-05-01), Belchetz et al.
patent: 2427112 (1947-09-01), Tyson
patent: 2431462 (1947-11-01), Campbell et al.
patent: 2661321 (1953-12-01), Schutte
patent: 2951806 (1960-09-01), Walser
patent: 3295897 (1967-01-01), Erickson et al.
patent: 3410793 (1968-11-01), Strnahan et al.
patent: 3494858 (1970-02-01), Luckenbach
patent: 3557019 (1971-01-01), Van Driesen
patent: 3770615 (1973-11-01), Blazek
patent: 3909392 (1975-09-01), Horecky, Jr. et al.
patent: 4070159 (1978-01-01), Myers et al.
patent: 4099927 (1978-07-01), McKinney
patent: 4162213 (1979-07-01), Zrinscak, Sr. et al.
patent: 4176084 (1979-11-01), Luckenbach
patent: 4243514 (1981-01-01), Bartholic
patent: 4244811 (1981-01-01), Grenoble et al.
Busch Lloyd E.
Myers, deceased George D.
Ashland Oil Inc.
Konopka P. E.
McCrae Charles A.
Willson, Jr. Richard C.
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