US4322384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sparger nozzles
Assignee: BP PLC
•
Filing: 1980-02-12
•
Granted: 1982-03-30
•
Expires: 2000-02-12
Abstract
Abstract Sparger ring for catalytic cracker regenerator comprises a plurality of converging nozzles for air entry to reduce erosive wear.
Inventors
- 👤 Gordon W. Sutton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:13
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/1818
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
111 words
In a catalytic cracker regenerator having a housing, a bottom portion, an inlet for receiving catalyst, an outlet for discharging catalyst and a sparger situated in said regenerator near said bottom, the improvement, which reduces the tendency of said sparger to erode during use, comprising: said sparger having a base portion and a plurality of converging nozzles positioned on said base portion, each of said converging nozzles projecting upwardly and having an inlet and outlet for the passage of fluid through said converging nozzles, each of said outlets being smaller in cross-sectional area than the respective inlet to said converging nozzles so that the passage of fluid through said nozzle converges.
Claim 2
Dependent Claim
111 words
In a catalytic cracker regenerator having a housing, a bottom portion, an inlet for receiving catalyst, an outlet for discharging catalyst and a sparger situated in said regenerator near said bottom, the improvement, which reduces the tendency of said sparger to erode during use, comprising: said sparger having a base portion and a plurality of converging nozzles positioned on said base portion, each of said converging nozzles projecting upwardly and having an inlet and outlet for the passage of fluid through said converging nozzles, each of said outlets being smaller in cross-sectional area than the respective inlet to said converging nozzles so that the passage of fluid through said nozzle converges.
Claim 3
Dependent Claim
18 words
A sparger according to claim 1 wherein said base portion is shaped in the form of a ring.
Claim 4
Dependent Claim
19 words
A sparger according to claim 1 wherein the nozzles converge at an angle in the range 1° to 30°.
Claim 5
Dependent Claim
19 words
A sparger according to claim 3 wherein the nozzles converge at an angle in the range 4° to 10°.
Claim 6
Dependent Claim
15 words
A sparger according to claim 4 wherein the nozzles converge at an angle of 6°.
Claim 7
Dependent Claim
13 words
A sparger according to claim 1 wherein the nozzles have a parallel entry.
Claim 8
Dependent Claim
29 words
A sparger according to claim 1 wherein the ratio of the cross-sectional area of the outlet to the inlet of the nozzles is in the range 0.10 to 0.95.
Claim 9
Dependent Claim
30 words
A sparger according to claim 7 wherein the ratio of the cross-sectional area of the outlet to the inlet of the nozzles is in the range of 0.5 to 0.8.
References Cited (Backward Citations)
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-03-29 | 1985-09-28 | 1986-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-03-29 | 1989-09-28 | 1990-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-03-29 | 1993-09-28 | 1994-03-30 | $7700.00 | Window Closed / Lapsed |