Claims
- 1. A FCC feed injector comprising:
(a) a feed inlet; (b) a first atomizing fluid inlet; (c) a second atomizing fluid inlet; (d) an external sparger in fluid communication with the feed inlet and the first atomizing fluid inlet, the external sparger configured to define a first mixing zone; (e) a second mixing zone in fluid communication with the second atomizing fluid inlet and the first mixing zone, the second mixing zone configured to receive the FCC feed/atomizing fluid mixture from the first mixing zone and promote mixing between the mixture from the first mixing zone and a second atomizing fluid; and, (f) a feed nozzle in fluid communication with the second mixing zone, the nozzle configured to pass the FCC feed/atomizing fluid into the riser reaction zone in a predetermined spray pattern.
- 2. The injector according to claim 1 wherein the second mixing zone comprises an internal sparger, an external sparger, or a mixing tee.
- 3. The injector according to claim 1 wherein the first and second mixing zones at least partially overlap.
- 4. The injector according to claim 1 wherein the second mixing zone is positioned downstream from the first mixing zone.
- 5. The process according to claim 1 wherein feed nozzle is positioned less than about 15 internal pipe diameters downstream from the second mixing zone.
- 6. The process according to claim 1 wherein the second mixing zone is positioned less than about 50 internal pipe diameters downstream from the first mixing zone.
- 7. The injector according to claim 2 wherein the first and second mixing zones at least partially overlap.
- 8. The injector according to claim 2 wherein the second mixing zone is positioned downstream from the first mixing zone.
- 9. A FCC feed injector comprising:
(a) a feed inlet; (b) a first atomizing fluid inlet; (c) a second atomizing fluid inlet; (d) a mixing tee in fluid communication with the feed inlet and the first atomizing fluid inlet, the mixing tee configured to define a first mixing zone; (e) a second mixing zone in fluid communication with the second atomizing fluid inlet and the first mixing zone, the second mixing zone configured to receive the FCC feed/atomizing fluid mixture from the first mixing zone and promote mixing between the mixture from the first mixing zone and a second atomizing fluid; and, (i) a feed nozzle in fluid communication with the second mixing zone, the nozzle configured to pass the FCC feed/atomizing fluid into the riser reaction zone in a predetermined spray pattern.
- 10. The injector according to claim 9 wherein the second mixing zone comprises an internal sparger, an external sparger, or a mixing tee.
- 11. The injector according to claim 9 wherein the first and second mixing zones at least partially overlap.
- 12. The injector according to claim 9 wherein the second mixing zone is positioned downstream from the first mixing zone.
- 13. The process according to claim 9 wherein feed nozzle is positioned less than about 15 internal pipe diameters downstream from the second mixing zone.
- 14. The process according to claim 9 wherein the second mixing zone is positioned less than about 50 internal pipe diameters downstream from the first mixing zone.
- 15. The injector according to claim 10 wherein the first and second mixing zones at least partially overlap.
- 16. The injector according to claim 10 wherein the second mixing zone is positioned downstream from the first mixing zone.
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application claims benefit of U.S. provisional patent application serial No. 60/285,027 filed Apr. 19, 2001.
Provisional Applications (1)
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Number |
Date |
Country |
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60285027 |
Apr 2001 |
US |