USRE13266E - Method of preparing liqttid hydrocarbon for combustion - Google Patents

Description

, B. J. wmems. I METHOD OF PREPARING LIQUID HYDROGARBON'FOB. COMBUSTION.

' APPLIOATIQF FILED APB. 19, 1911.

Reissued Ju1y 4, 1911.. 13,266.

' Illinois, have invented a new and useful Im- 'and is preferably maintained under pres- ,tank 2, which communicates with the tank UNITED STATES PATENT @FFPCE.

EDWARD J. WIGGINS, OLE CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS, T0 KEROGAS COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF SOUTH DAKOTA.

METHOD OF PREPARING LIQUID HYDROCARBON IEOR COMBUSTION.

Specification 0f Reissued Letters Patent.

Reissued July 4, 1911.

Original No. 964,893, dated July 19, 1910, Serial No, 539,548. Application for reissue filed April 19, 1911.

Serial No.

To all whom it may concern:

Be it known that I, EDWARD J. winks, a citizen of the United States, residing at Chicago, in the county of Cook and State of proyement in Methods of Preparing Liquid Hydrocarbon for Combustion, of" which the following is a specification.

The object of my invention is to provide a novel and comparatively inexpensive method of preparing liquid hydrocarbon for combustion, and more particularly kerosene and the heavier hydrocarbons (though it also applicable to the lighter hydrocarbons, or mixtures, such as gasolene), whereby in feeding the same to a burner, as the point of combustion, it shall be rendered, while traversing its course thereto, readily ignitible at the burner am, so thoroughly combustible to emit a blue flame of high incandescing ability.

My invention may be best explained by reference to means suitable for practicing the method, such means being illustrated in the accompanying drawing, which shows, by a broken and sectional. VlEW in side elevation, partly diagrammatic, a desirable form of apparatus for the'purpose.

The sup 'ily of liquid hydrocarbon, such as kerosene, may be contained in a tank 2 sure, and it is also preferred, but not nccossary for the practice of my invention, to employ air under pressure for use in the manner hereinafter described, for Which purpose an air-pressure supply tank is shown at 3 provided. with a nipple 4 at which. to connect an air-pump (not shown) which may also supply the pressure to the 3 through a yalved hose-connection 5. An air-pipe 6 leads horizontally from a Wallbracket 7, and terminates at its advance-end in a'periorated plug forming the spraying;- nozzle; and it has avalved hose-connection 11 near its opposite end with the air-pressure tank 3. A tube 9 of small bore extends centrally through the air-pipe, terminating in the spraying-nozzle 10 and communicating at. its inlet-end, through a valved hose 11 with the tank 2. The burner 12 is of the Bunsen type. Its-horizontal tubular section 18 is in alinement with the nozzle 10, but is separated there by its discharge through the atmosphere in' the space 14. The depending tubular section T3 of the burner is the burner proper and its discharge-end or mouth is covered by a mantle 15 of any suitable kind in the incandescing type enveloped in a globe 16 supported by a metal ring 17. 1

Upon opening connected valves 18 and 19 controlling the liquid and air passages, kerosene courses through the tube 9 at great Yelodty and is discharged in a fine spray from'the nozzle 10 where it is met by the air discharging under pressure from the pipe. 6, with the client of atomizing the oil and mixing therewith. This mixture of liquid hydrocarbon and air discharges into the atmosphere in the short space 14 which it traverses in entering" the chamber 13, and it carries with it into the latter enough more air from the atmosphere to render the resultant product completely combustible or approximately so. By coursing the mixture through the chamber 13 the particles-of kerosene become more and more broken up and the intimacy of their commingling with air is so enhanced as to reduce the product discharcing: from the mixing chamberinto the burner-section 13 to a readily ignitiblc condition, the flame, upon ignition, being blue and instantaneously incandescing the -m:int e. lil'ore or less of the heat of combustion is radiated from the point of combustion and from the mantle into the chamber 13 and serves to crack the particles of hydrocarlwn, meaning to break up the hydrocarbon molecules: and as the burner becomes heated, its wall conducts the heat to the section 1.3 to exert its distilling influence, on the mixture in the chamber and sup plement the cracking and distilling action thereon of the radiant heat from the flame;

fin important feature of my improvement, which constitutes a principal element of its departure in the art, is that of spraying the hydrocarbon in an unheated condition in its course to the burner, into the atmosphere to atomize it While cold and mix air there with, thus avoiding any heating of the liquid hydrocarbon before it has been atomized and more or less intimately mixed with air;

whereas, in the prior art, the liquid hydrothe solid particles of carbon then remain in the resultant product the flame.

As will be understood by thoseskilled in the art to which my invention relates, the product of mixing, cold, atomized liquid hydrocarbonwith air acquires great kinetic energy, due to heat-producing action, and the oxidizable particles are split up into and are consumed in smaller and more volatile bodies, resulting in a homogeneous mixture of gas, yapor,

hydrocarbon particles and air,- of lesser density, but of greater volume than the primary mixture. I

The temperature in the chamber 18 must be 'suiiiciently high to crack the hydrocarbon in the mixtur and the unheated or cold eondition of the liquid hydrocarbon and air,

and the mixtures thereof, in'their course to the chamber 13, means that they may not be subjected to a temperature that will crack the hydrocarbon, since votherwise the object of my method would be frustrated, while the liquid hydrocarbon is not injuriously affected for my purpose by a lower temperature. Moreover, it is essential that the mixture that is sprayed into the chamber 13 shall not be subjected to ma- 7 terial condensation, since if it becomes so condensed in its course, it is impaired for the cracking action of the heat'and my improved method will fail of its purpose, so that the spraying into that chamber must be immediate, or so nearly so'as to avoid the objectionable condensation of the mixture.

What I claim as new and desire to secure by Letters Patent, is:

l. The method of preparingliquid hydrocarbon for combustion, which consists in conducting separately liquid hydrocarbon and air, both in unheated condition, to a point of mixing the two while in such condition, spraying the unheated mixture in its course to the point of consumption into the atmosphere, thereby atomizing it While in such unheated condition and mixing more air with. the resultant fluid, and thereupon immediately subjecting the mixture to a cracking temperature in said course.

2. The method of preparing liquid hydrocarbon for combustion, which consists in conducting separately liquid hydrocarbon and air, both in unheated condition, to a point of mixing the two while in such con dition, spraying the unheated mixture in its course to the point of consumption into the atmosphere, thereby atomizing it while in such unheated condition-and mixing more air .with the resultant fluid, and thereupon "immediately subjecting the mixture, in said- -course, to the heat generated at thepoint of consumption and thus cracking the hydrocarbon.

EDWARD J. WIGGINS. In presence of 4 NORMAN A. STREET,

CHAS. I, HARDY.

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