US3401124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovering energy from flue gas
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1964-10-26
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Granted: 1968-09-10
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Expires: 1984-10-26
Abstract
No abstract record available.
Inventors
- 👤 John E Goulden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:33
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/14; C10G11/18; C10G11/185; B; B01; B01J; B01J21/00; B01J21/20; F; F01; F01K; F01K23/00; F01K23/02; F01K23/06; F01K23/064; F02; F02C; F02C6/00; F02C6/04; F02C6/10; F04; F04D; F04D25/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
267 words
A METHOD FOR RECOVERING ENERGY FROM HOT FLUE GAS UNDER SUPERATMOSPHERIC PRESSURE LEAVING A CATALYST REGENERATION ZONE AND UTILIZING THE RECOVERED ENERGY TO SUPPLY AT LEAST PART OF THE COMBUSTION SUPPORTING REGENERATING GAS TO BE SUPPLED TO THE REGENERATION ZONE, WHICH COMPRISES RECOVERING FLUE GAS FROM A CATALYST REGENERATION ZONE, PASSING SAID FLUE GAS TO AN EXPANSION TURBINE, EXPANDING SAID FLUE GAS TO A LOWER PRESSURE IN SAID TURBINE TO PROVIDE POWER WHICH IS USED TO DRIVE A GAS COMPRESSOR CONNECTED TO SAID TURBINE TO SUPPLY ONLY A PORTION OF SAID COMBUSTION SUPPORTING REGENERATING GAS UNDER A HIGH PRESSURE SUFFICIENT TO BE SUPPLIED TO SAID REGENERATION ZONE, RECOVERING EXPANDED FLUE GAS FROM SAID TURBINE AT AN ELEVATED TEMPERATURE, GENERATING STEAM WITH SAID EXPANDED FLUE GAS, EMPLOYING STEAM GENERATED FROM SAID EXPANDED FLUE GAS TO PROVIDE ANOTHER PORTION OF REGENERATING GAS UNDER AN INTERMEDIATE PRESSURE, UTILIZING A MOTOR DRIVEN BY ELECTRICITY FROM AN EXTERNAL SOURCE TO DRIVE A GAS COMPRESSOR TO COMPRESS AN ADDITIONAL PORTION OF REGENERATING GAS TO SAID INTERMEDIATE PRESSURE, COMBINING THE COMPRESSED REGENERATING GAS OBTAINED FROM USING SAID GENERATED STREAM WITH THE COMPRESSED REGENERATING GAS OBTAINED FROM SAID ELECTRICALLY DRIVEN MOTOR, SUBJECTING SAID COMBINED REGENERATING GAS TO COMPRESSION TO SAID HIGH PRESSURE SUFFICIENT TO BE SUPPLIED TO SAID REGENERATION ZONE BY UTILIZING A MOTOR DRIVEN BY ELECTRICALLY GENERATED FROM ENERGY SUPPLIED BY SAID TURBINE, COMBINING SAID COMBINED COMPRESSED REGENERATING GAS WITH SAID FIRST MENTIONED COMPRESSED PORTION OF REGENERATING GAS AT SAID HIGH PRESSURE AND UTILIZING THE LAST MENTIONED COMBINATION OF GAS AS THE COMBUSTION SUPPORTING REGENERATING GAS UNDER HIGH PRESSURE SUPPLIED TO SAID REGENERATION ZONE.
Claim 2
Independent Claim
267 words
A METHOD FOR RECOVERING ENERGY FROM HOT FLUE GAS UNDER SUPERATMOSPHERIC PRESSURE LEAVING A CATALYST REGENERATION ZONE AND UTILIZING THE RECOVERED ENERGY TO SUPPLY AT LEAST PART OF THE COMBUSTION SUPPORTING REGENERATING GAS TO BE SUPPLED TO THE REGENERATION ZONE, WHICH COMPRISES RECOVERING FLUE GAS FROM A CATALYST REGENERATION ZONE, PASSING SAID FLUE GAS TO AN EXPANSION TURBINE, EXPANDING SAID FLUE GAS TO A LOWER PRESSURE IN SAID TURBINE TO PROVIDE POWER WHICH IS USED TO DRIVE A GAS COMPRESSOR CONNECTED TO SAID TURBINE TO SUPPLY ONLY A PORTION OF SAID COMBUSTION SUPPORTING REGENERATING GAS UNDER A HIGH PRESSURE SUFFICIENT TO BE SUPPLIED TO SAID REGENERATION ZONE, RECOVERING EXPANDED FLUE GAS FROM SAID TURBINE AT AN ELEVATED TEMPERATURE, GENERATING STEAM WITH SAID EXPANDED FLUE GAS, EMPLOYING STEAM GENERATED FROM SAID EXPANDED FLUE GAS TO PROVIDE ANOTHER PORTION OF REGENERATING GAS UNDER AN INTERMEDIATE PRESSURE, UTILIZING A MOTOR DRIVEN BY ELECTRICITY FROM AN EXTERNAL SOURCE TO DRIVE A GAS COMPRESSOR TO COMPRESS AN ADDITIONAL PORTION OF REGENERATING GAS TO SAID INTERMEDIATE PRESSURE, COMBINING THE COMPRESSED REGENERATING GAS OBTAINED FROM USING SAID GENERATED STREAM WITH THE COMPRESSED REGENERATING GAS OBTAINED FROM SAID ELECTRICALLY DRIVEN MOTOR, SUBJECTING SAID COMBINED REGENERATING GAS TO COMPRESSION TO SAID HIGH PRESSURE SUFFICIENT TO BE SUPPLIED TO SAID REGENERATION ZONE BY UTILIZING A MOTOR DRIVEN BY ELECTRICALLY GENERATED FROM ENERGY SUPPLIED BY SAID TURBINE, COMBINING SAID COMBINED COMPRESSED REGENERATING GAS WITH SAID FIRST MENTIONED COMPRESSED PORTION OF REGENERATING GAS AT SAID HIGH PRESSURE AND UTILIZING THE LAST MENTIONED COMBINATION OF GAS AS THE COMBUSTION SUPPORTING REGENERATING GAS UNDER HIGH PRESSURE SUPPLIED TO SAID REGENERATION ZONE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |