US814001A - Process of generating gas. - Google Patents

Description

1%.- a14,oo1. I PATBNTED FEB. 2?, 1906.

a. ELLIS. rnoonss or GENERATING (us.

INVENTOR LPPLIUATIOH I'ILBD HAYS, 1905.

MUMW f WITNESSES:

UNITED STATES PATENT OFFICE.

N. Y.. assumes '10 cousus'rion YORK, N. Y., A CORPORATION OF PROCESS OF GENERATING GAS- No. 814,001; Specification of Letters Patent. Patented Feb. 27, 1906.

Original application filed Harsh 6,1905, Serial No 248,468. Divided and this applioation illad May 5, 1905. Serial No. 259.037.

To all whom it may concern.-

Be it known that I, CARLETON ELLIS, a citizen of the United States, and a resident of New York cit in the county of New York and State of ew York, have invented oertain new and useful Improvements in Proc esses of Generating Gas, of which the followi isa specification.

y invention relates to process for the manufacture of producer-gas in which can hon dioxid in lieu of the commonly-used steamis employed as the endothermic cooling agent for regulating or depressing the temperature of the fuel-producing mass.

In United States Patent No. 790 489 of May 23, 1905, I have described a method for the use of carbon dioxid and air for the purose aforesaid which re uires that the carn dioxid or products combustion used in the draft-current sup lied to the gas-producing appliance be used alternately in a cooled and heated condition.

The present application is a division of the above-mentioned patent and relates specifically to the simultaneous use of heated and cooled products of combustion or carbon dioxid.

The use of the cooled carbon dioxid offers many advantages in most instances; but in some cases, however, hot carbon dioxid ma be used to advantage. A well-known di culty arising from the use of the latter unless lar e quantities of steam be employed therewit is that the aseproducer temperature is not easily contro led.

The present invention relates particularly to the use of such highly-heated products of combustion and in a novel manner of such a character thatthe evil effects heretofore experienced from the use of such intensely- ,heated gases are avoided.

My invention consists in the use of not solely hot products of combustion, but in the simultaneous use of hot products of combustion in conjunction with cooled products of combustion.

The advantages and employment of cooled products of combustion for gasroducer control have been described in my nited States Patent No. 7 90,253, and lidolnot ay claim g enel'icall to the method therein isclosed.

he simu taneous use of heated and cooled products ofcombustion copstituting'the preseat utility wheneverhot ent invention is of cooled steam-generator furnace gases an purpose the apparatus s wn in the accom .which my process may be carried into effect. "In the drawing, 1 is a gas-producerhaving the gas-outlet 2, feed-hopper 3, and the blasttwyer's 4.

is a reverheratory furnace having the grate 6, the hearth 7, and the stack 8. rom the stack of this reverberatory furnace a con: duit 9 leads to the producer-twyers 4. Interposed in this conduit is shown the fan-blower 10. At 1 1 is shown a steam-boiler having the stack 12 and connecting-flue '13.

.14 is a conduit extending from the boilerstack to the conduit 9, entering same on the inlet side of the fan.

16 is a steam blower having the steampipe 17 and valve 18. 19 is a passage connectin the furnaces with the twyers 4 throng the steam-blower 16.

regulating the flow of the gases and air used in'this process.

My method of operation is as follows} A deep bed of coal is brought to a suitable state of ignition in the as-producer 1, the gas being drawn throng the outlet and the green fuel being admitted through the hopper 3. Stack-gases are drawn through the p pe 9 in regulated amount from both thereverbra- Those comin from the reverbertory furnace are in a high y-hcated condition, while those coming from the steam-boiler are relatively cool, as the have been water-codledf by contact wit the water-tubes of the boiler. These products of combustion mingle in the conduit 9, and to these are added, if found necessary a-regulated amount of air through the air-inlet 15. In case the fan-blower (shown sit-) is used for propcllin the gases into the producer the gate 25 will e closed, while the gates 20 and 21 will be open. When it is desired to use steam in the gas or when it is found desirable to use only the steamblowcr for propelling the products of pombus- 2o 21, 22, 23, 24, and 25 are blast-gates for tory furnace 5 and the steam-boiler 11.

v stack-gases are produced in the samelocahty.

panying drawing illustrates a means by' tion-and air into the producer, the gates 20 and 21 ma be closed and the gate 25 may be opened. .he mixture of heated and cooled products of combustion and air and, in certain cases, steam is passed through the producer, where it comes in contact with the i nited carbon contained in a deep bed of 115. The oxygen of the blast is converted into carbon monoxid, while the carbon dioxid contained in the roducer-blast is more or less reduced to car on monoxid. A portion of the carbon dioxid introduced from external sources may act in such a manner as to create a partial pressure of carbon dioxid without the formation of carbon dioxid from the fixed carbon of the coal, in which case a considerable economy of fuel is brought about. Through the s litting u of the carbon dioxid introduce in the b ast an endothermic absorption of heat is brought about and the temperature of the producer is kept at an effective gasifying-point, which is that at which no objectionable amount of soot or clinker forms to clog the roducer and retard the uniform passage of the blast throughout the gas-producing mass of fuel. At ve high temperatures the oxygen shows a so active action over the carbon of the fuel, and the exothermic reaction therefore predominates over the endothermic reaction. This results in overheating the lower part of the f'uehbed. By introducing a mixture of hot and'cooled products of combustion this overheatiriiis argely prevented, and the amount of cli or which is formed is not objectionable.

What I claim is- 1. In the generation of gas in a gas-producer, the process which consists in en 1'- ing to the draft-current an endothermic consisting of mixed and averaged products of combustion from different sources, whereby the temperature of said endothermicbody may be regulated to any desired'degree.

2. In the generation of gas in a -gasproducer, the process which consists in supplying to the'draft-current aszan endothermic body, products of combustion-from a furnace; treating ore and admixing therewithfurther products of combustion from aboiler-furnace. Signed at New York city, in the county of New York and State of NewY'ork, this. 3d day of May, A. D. 1905.

CABLE-TON ELLIS. Witnesses:

WARREN E.Dlxo1-r, A. M. Samoa.

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