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US3851042A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for controlling air pollution

Assignee: Foster Wheeler Inc
•
Filing: 1971-11-23
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Granted: 1974-11-26
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Expires: 1991-11-23
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Abstract

Abstract 1. IN A METHOD OF DESULPHURIZING FLUE GAS PRODUCED FROM COMBUSTION OF A FUEL SELECTED FROM THE GROUP CONSISTING OF COAL AND OIL, THE STEPS WHICH COMPRISE BURNING SAID FUEL UNDER CONDITIONS WHICH PRODUCE FINELY-DIVIDED FLY ASH PARTICLES AND SULPHUR-BEARING INGREDIENTS IN THE FLUE GAS, CONTINOUALY MIXING QUICKLINE AND WATER ANF FORCING SAID MIXTURE INTO HIGH PRESSURE INTIMATE CONTACT, THUS CAUSING A REACTION TO TAKE PLACE UNDER PRESSURE WITH DEVELOPMENT OF STEAM AND PRODUCTION OF A FULLY HYDRATED LIME AND CONTINOUSLY INJECTING A STREAM OF SAID FULLY HYDRATED LIME AND SAID STEAM UNDER PRESSURE, WHILE SAID LINE IS STILL IN ITS FRESHLY FORMED STATE INTO THE AFORESAID FLUE GAS WHILE SAID FLUE GAS IS AT A TEMPERATURE OF ABOUT 1200*F.-2400*F. D R A W I N G

Inventors

  • 👤 L Minnick

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 14:54
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/48; B01D53/50; B01D53/501

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 119 words
IN A METHOD OF DESULPHURIZING FLUE GAS PRODUCED FROM COMBUSTION OF A FUEL SELECTED FROM THE GROUP CONSISTING OF COAL AND OIL, THE STEPS WHICH COMPRISE BURNING SAID FUEL UNDER CONDITIONS WHICH PRODUCE FINELY-DIVIDED FLY ASH PARTICLES AND SULPHUR-BEARING INGREDIENTS IN THE FLUE GAS, CONTINOUALY MIXING QUICKLINE AND WATER ANF FORCING SAID MIXTURE INTO HIGH PRESSURE INTIMATE CONTACT, THUS CAUSING A REACTION TO TAKE PLACE UNDER PRESSURE WITH DEVELOPMENT OF STEAM AND PRODUCTION OF A FULLY HYDRATED LIME AND CONTINOUSLY INJECTING A STREAM OF SAID FULLY HYDRATED LIME AND SAID STEAM UNDER PRESSURE, WHILE SAID LINE IS STILL IN ITS FRESHLY FORMED STATE INTO THE AFORESAID FLUE GAS WHILE SAID FLUE GAS IS AT A TEMPERATURE OF ABOUT 1200*F.-2400*F.
Claim 2
Dependent Claim 119 words
IN A METHOD OF DESULPHURIZING FLUE GAS PRODUCED FROM COMBUSTION OF A FUEL SELECTED FROM THE GROUP CONSISTING OF COAL AND OIL, THE STEPS WHICH COMPRISE BURNING SAID FUEL UNDER CONDITIONS WHICH PRODUCE FINELY-DIVIDED FLY ASH PARTICLES AND SULPHUR-BEARING INGREDIENTS IN THE FLUE GAS, CONTINOUALY MIXING QUICKLINE AND WATER ANF FORCING SAID MIXTURE INTO HIGH PRESSURE INTIMATE CONTACT, THUS CAUSING A REACTION TO TAKE PLACE UNDER PRESSURE WITH DEVELOPMENT OF STEAM AND PRODUCTION OF A FULLY HYDRATED LIME AND CONTINOUSLY INJECTING A STREAM OF SAID FULLY HYDRATED LIME AND SAID STEAM UNDER PRESSURE, WHILE SAID LINE IS STILL IN ITS FRESHLY FORMED STATE INTO THE AFORESAID FLUE GAS WHILE SAID FLUE GAS IS AT A TEMPERATURE OF ABOUT 1200*F.-2400*F.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-11-25 1978-05-27 1978-11-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-11-25 1982-05-27 1982-11-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-11-25 1986-05-27 1986-11-26 $7700.00 Window Closed / Lapsed

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