Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking
Reexamination Certificate
2005-07-05
2005-07-05
Langel, Wayne A. (Department: 1754)
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Cracking
C252S373000, C423S418200, C423S437100, C502S038000, C502S039000, C502S049000
Reexamination Certificate
active
06913687
ABSTRACT:
The present invention provides a method of producing a synthesis gas from a regeneration of a spent cracking catalyst. The method includes introducing a spent cracking catalyst into a first regeneration zone in a presence of a first atmosphere comprising a first oxygen containing gas at a first regeneration temperature. For example, a temperature that does not exceed about 1400° F., and more preferable, a temperature that ranges from about 1150° F. to about 1400° F., may be used as the first regeneration temperature. The method further includes introducing the spent cracking catalyst from the first regeneration zone into a second regeneration zone. The spent cracking catalyst is introduced into the second regeneration zone in a presence of a second atmosphere comprising a second oxygen containing gas and a carbon dioxide rich stream, and at a second regeneration temperature substantially greater than the first regeneration temperature. For example, the second regeneration zone may be operated at a temperature ranging from about 1500° F. to about 1800° F.
REFERENCES:
patent: 2488718 (1949-11-01), Forrester
patent: 4272402 (1981-06-01), Mayes
patent: 4274942 (1981-06-01), Bartholic et al.
patent: 4276150 (1981-06-01), McHenry, Jr.
patent: 4304659 (1981-12-01), Pratt et al.
patent: 4316794 (1982-02-01), Schoennagel
patent: 4354925 (1982-10-01), Schorfheide
patent: 4376038 (1983-03-01), Myers
patent: 4388218 (1983-06-01), Rowe
patent: 4406773 (1983-09-01), Hettinger, Jr. et al.
patent: 4542114 (1985-09-01), Hegarty
patent: 4666596 (1987-05-01), Oelbermann et al.
patent: 4689312 (1987-08-01), Ngoc Le et al.
patent: 4849092 (1989-07-01), Ham et al.
patent: 4965232 (1990-10-01), Mauleon et al.
patent: 5009769 (1991-04-01), Goelzer
patent: 5073529 (1991-12-01), Miller et al.
patent: 5565089 (1996-10-01), Ramachandran et al.
patent: 5716514 (1998-02-01), Buchanan
patent: 5814208 (1998-09-01), Menon et al.
patent: 5883031 (1999-03-01), Innes et al.
patent: 5908804 (1999-06-01), Menon et al.
patent: 6491810 (2002-12-01), Mayes, Jr.
patent: 6585884 (2003-07-01), Mayes, Jr.
patent: 0 152 845 (1985-08-01), None
patent: 61-151012 (1986-07-01), None
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