Paul D Flanagan

US Patent:

40478777, Sep 13, 1977

Filed:

Jul 26, 1976

Appl. No.:

5/708557

Inventors:

Paul Flanagan - Princeton NJ

Assignee:

Engelhard Minerals & Chemicals Corporation - Iselin NJ

International Classification:

F02C 316

US Classification:

431 8

Abstract:

Combustion of the carbonaceous fuels such as fuel oil may be carried out advantageously in the presence of an oxidation catalyst body. Under suitable operating conditions the combustion can be effected at high rates of energy release for a catalyst and combustor of a given size, producing an effluent substantially free of pollutants. However, for a given combustor installation it may be desirable at times to utilize a thermal burner, associated with the catalyst arrangement, which is disposed for directing jets of burning gaseous fuel such as natural gas from a multiplicity of points just down-stream of the catalyst. Thus combustion of the gaseous fuel in such jets is obtained substantially throughout a cross section of the downstream zone through which catalyst effluent passes. When a fuel-air mixture is being fed to the catalyst simultaneously with such supplying of gaseous fuel, the thermal burner preferably is arranged to effect coalescing of the jets of burning gaseous fuel and intermixing thereof with substantially all of the effluent from the catalyst. Such intermixing may serve to assist the combustion of any fuel which passes the catalyst without complete combustion during warm-up.

US Patent:

41303881, Dec 19, 1978

Filed:

Mar 24, 1977

Appl. No.:

5/780852

Inventors:

Paul Flanagan - Princeton NJ

Assignee:

Flynn Burner Corporation - New Rochelle NY

International Classification:

F23J 1500

US Classification:

431116

Abstract:

A fuel burner adapted to produce a stable, non-contaminating blue flame throughout a broad operating range. The burner includes a combustion zone into which is directly fed the combustion air. Air-atomized liquid fuel is fed into the combustion zone through a Venturi whose constricted throat communicates by way of a feedback passage to the combustion zone, whereby the ejector effect produced by the atomized fuel passing through the Venturi causes a portion of the hot combustion gas generated in the combustion zone to be drawn into the throat to intermix with the atomized fuel therein, thereby pre-vaporizing the fuel to insure full combustion thereof.

US Patent:

41605268, Jul 10, 1979

Filed:

Oct 6, 1977

Appl. No.:

5/839769

Inventors:

Paul Flanagan - Princeton NJ

Assignee:

Flynn Burner Corporation - New Rochelle NY

International Classification:

B05B 706

US Classification:

239427

Abstract:

A liquid fuel atomizer nozzle having a liquid fuel input and an air input, the nozzle including an internal mixing chamber in which the incoming liquid fuel to be atomized is subjected to high velocity air streams both within the central core of the liquid and about its periphery to effect thorough atomization of the liquid even at low atomizing air flow rates and pressures.

US Patent:

41181719, Oct 3, 1978

Filed:

Dec 22, 1976

Appl. No.:

5/753499

Inventors:

Paul Flanagan - Princeton NJ
Eric Roy Norster - Lexington MA
Robert V. Carrubba - Bridgewater NJ
Ronald M. Heck - Frenchtown NJ

Assignee:

Engelhard Minerals & Chemicals Corporation - Iselin NJ

International Classification:

F23L 900

US Classification:

431 10

Abstract:

A method for effecting combustion of carbonaceous fuel is operative to sustain the combustion at a predetermined rate or rates of total fuel demand, the fuel being distributed between two combustion stages to make up the required total feed rate. Thus one portion, usually about 20-70 percent, of the total fuel is fed to a thermal combustion stage. Sufficient air is supplied simultaneously to the thermal combustion stage, preferably about 125 to 185 percent of the stoichiometric amount of air, to effect substantially complete combustion of that portion of the fuel and produce a heated effluent. An additional amount of relatively cool air is mixed with this effluent, and the resulting cooled mixture continues through the mixing zone, the additional air being sufficient to inhibit preburning of the remaining portion of the fuel which is added downstream in the mixing zone. This cooled mixture in the mixing zone, upon and following the introduction of the additional fuel, is at temperatures within the range of about 500. degree. -1200. degree. F. The enriched fuel-air admixture then is combusted in the presence of a catalyst, the admixture providing combustion conditions in the catalyst stage giving a high rate of heat release without substantial formation of pollutants.