US4144015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion process
Assignee: Hydro Energy Systems Ltd
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Filing: 1977-02-14
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Granted: 1979-03-13
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Expires: 1997-02-14
Abstract
Abstract An improved combustion process including emulsification of oil and water and conveying the emulsified oil and water, in the presence of some dispersing gas, under pressure into a combustion chamber where the gas aids rapid and excellent atomization of the emulsion.
Inventors
- 👤 Camille J. Berthiaume
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:04
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/10; F23D11/16; F23K; F23K5/00; F23K5/02; F23K5/08; F23K5/10; F23K5/12
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
100 words
A process for suppressing nitrogen-oxide formation in burning of hydrocarbon fuel oil comprising the steps of emulsifying from 12% with 25% water with said fuel oil, burning said fuel oil in a combustion chamber in a flame at or above 3000° F. and wherein (i) said emulsifying of said hydrocarbon with a water is carried out with a gaseous dispersing fluid to form a fuel emulsion (ii) and said emulsion is passed under a higher pressure to a burner head and thence into a furnace at a lower pressure, causing said dispersing fluid to expand and disperse said fuel emulsion.
Claim 2
Dependent Claim
100 words
A process for suppressing nitrogen-oxide formation in burning of hydrocarbon fuel oil comprising the steps of emulsifying from 12% with 25% water with said fuel oil, burning said fuel oil in a combustion chamber in a flame at or above 3000° F. and wherein (i) said emulsifying of said hydrocarbon with a water is carried out with a gaseous dispersing fluid to form a fuel emulsion (ii) and said emulsion is passed under a higher pressure to a burner head and thence into a furnace at a lower pressure, causing said dispersing fluid to expand and disperse said fuel emulsion.
Claim 3
Dependent Claim
13 words
A process as defined in claim 1 wherein said dispersing fluid is air.
Claim 4
Dependent Claim
27 words
A process as defined in claim 1 wherein said burning is carried out in a vapor-bearing atmosphere which comprises three to 13% of water vapor or steam.
Claim 5
Dependent Claim
23 words
A process as defined in claim 3 wherein said water-vapor-bearing atmosphere comprises a quantity of hydrocarbon fuel which is insufficient to support combustion.
Claim 6
Dependent Claim
13 words
A process as defined in claim 1 wherein said dispersing fluid is steam.
Claim 7
Dependent Claim
47 words
A process as defined in claim 1 wherein said emulsifying includes the step of intimately contacting some steam, water and a small portion of said fuel in a conditioning zone, mixing effluent from said conditioning zone with fuel, and supplying the resultant mix to said burner head.
Claim 8
Dependent Claim
35 words
A process as defined in claim 6 wherein said process is operated with a quantity of water fed into said conditioning zone which is equal to about 5% of hydrocarbon fuel burned in said process.
Claim 9
Dependent Claim
101 words
A process as defined in claim 1 wherein said process comprises burning said hydrocarbon with a quantity of water equal to from 12% to 25% by weight of hydrocarbon fuel and burning said hydrocarbon at from about 2600° F. to about 3100° F. water forming means to minimize the formulation of nitrogen oxides, (i) emulsifying said hydrocarbon with a water and a gaseous dispersing fluid to form fuel emulsion and (ii) passing said emulsion under a higher pressure to a burner head and into a furnace at a lower pressure, causing said dispersing fluid to expand and disperse said fuel emulsion.
Claim 10
Dependent Claim
43 words
A process for suppressing nitrogen-oxide formation in burning of hydrocarbon fuel oil comprising the steps of emulsifying from 12% to 25% water with said fuel oil and burning said fuel oil in a combustion chamber in a flame at or above 3000° F.
Claim 11
Dependent Claim
43 words
A process for suppressing nitrogen-oxide formation in burning of hydrocarbon fuel oil comprising the steps of emulsifying from 12% to 25% water with said fuel oil and burning said fuel oil in a combustion chamber in a flame at or above 3000° F.
Claim 12
Dependent Claim
111 words
A process as defined in claim 9 comprising the steps of burning hydrocarbon fuel with a quantity of water equal to from 12% to 25% by weight of said hydrocarbon fuel at from about 2600° F. to about 3100° F. said water forming means to minimize the formulation of nitrogen oxides dispersing said burning wherein said process also comprises the steps of, (i) emulsifying said hydrocarbon with a water and a gaseous dispersing fluid to form a fuel emulsion and (ii) passing said emulsion under a higher pressure to a burner head and into a furnace at a lower pressure, causing said dispersing fluid to expand and disperse said fuel emulsion.
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) | 1982-03-12 | 1982-09-11 | 1983-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-12 | 1986-09-11 | 1987-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-12 | 1990-09-11 | 1991-03-13 | $7700.00 | Window Closed / Lapsed |