US656601A - Apparatus for purifying gas. - Google Patents

Description

' N0. 656,60l. Patented Aug. 2|, I900. E. .1. nurr.

APPARATUS FOR PUBIFYING GAS.

(Application filed Feb. 16, 1900.)

(No Model.) 2 Sheets$hest l.

E ii I I o f I I 0 I "m Nonms PETERS w. PHOTO-LlTNO-. wnsumomu. n.c.

No. 656,60L} Patented Aug. 2|, I900.

E. .1. DUFF.

APPARATUS FOR PURIFYING GAS.

(Application filed Feb. 16, 1900.) (No Model.) 2 Sheets-Sheet 2.

{NITED STATES PATENT OFFICE.

EDWARD JAMES DUFF, F LIv RPooL, ENGLAND, ASSIGNOR or oNE-HALE TO THE UNITED ALK LI ooMPANY,'LIMITED, OF SAME PLACE.

APPARATUS FOR BURIFYING GAS.

SPECIFICATION forming part a ette s, ra a n 656,601, dated August 21, 1900. Application fllecl February 16 1906. Serial No. 5,518. (No model.)

T M w it y n n: the dividing-walls between adjacent chan1= Be it known that I, EDWARD JAMES DUFF, 'bers there is concentrically arranged a pipe a subject of the Queen of Great Britain and f, and opposed to the open ends of this pipe, Ireland, and a resident of 30 James street, but ata short distance from it, are placed in 55 5 Liverpool, in the county of Lancaster, Engeach larger chamber a plates 9 of somewhat land, have invented certain new and useful greater diameter than the pipes f. The hot Improvements in and Connected with the gases entering at the top pass downward Treatment of Producer-Gases and Apparatus through the tubes (1 in the larger chambers Therefor, (for which British Letters Patent '0, the various streams reuniting and mixing 6o 10 have been applied for, No. 18,580, September in each of the intervening smaller chambers 14, 1899,) which invention is fully set forth In their downward passage the gases are in the following specification. cooled by water, which enters at the bottom This invention has for its object to effect of the tower by means of the central pipe f greater efficiency and economy in the treat; in the lowest of the smaller chambers 0 On 65 I5 ment of the gases generated in gas-producers, entering the larger chambers c the water is more especially with regard to the cooling of deflected by the plates 9 opposite the pipethe gases and the utilization of otherwise exit,andit passes upward between and around waste heat therefrom. the vertical tubes d, through which the gases The tar is separated and the ammonia reare passing. A similar deflection of the wa- 7o covered, which may be done in the usual ter takes place in each of thelarger chambers manner by passing the gases from the pro- 0, since the water always enters these through ducer upward through an absorption-tower the concentric pipes f of the smaller chambers containing material down over which acid; is 0 The gases thus deprived of their heat and caused to flow. The gases so deprived of tar of much of their water-vapor pass away at h 75 and ammonia leave the absorption-tower at from the bottom of the cooling-tower O and the upper part or top and are ready to be are conducted to the place at which they are cooled before burning, and it is chiefly to the to be consumed.

construction and arrangement of cooling 'ap- The water used for cooling the gases has paratus for this purpose that the improveattained a high temperature by the time it 80 3o ments according to this invention relate. reaches the top of the tower O and is con- In the following description the accompaducted by the pipe directly to the top of nying drawings are referred to, Figures 1 and a second tower D, (suitably packed,) through 2 being respectively an elevation and a plan which air is forced at d, the said air in its showing diagrammatically an arrangement of upward passage meeting the descending hot 8 5 apparatus according to this invention. Fig. water. The mixture of air and water-vapor 3 is a vertical section of the interchanger or so obtained is conducted from the outletd cooler; and Fig. 4: is a horizontal section of to the gas-producer and gives rise to the prothe same on the line 4 l, Fig. 3. I duction of a further quantity of gas, which is The absorption-tower is indicated at A. treated as hereinbefore described. 0 40 The gases on leaving the said tower traverse The lute B in the pipe connecting the ama pipe and lute-box B and pass to the top of tmonia -recovery tower A and the cooling a cooling-tower O, which consists of any contower O is provided with baffle-plates b, fixed venient number of superposed chambers c at the sides and alternately at top and botand 0 preferably different in size and artom to the walls of the pipe B. There are 5 5 ranged alternately. also similar luting arrangements below. Passing vertically through each 'of' the hen these lute-boxes contain no liquid, larger chambers c are tubes (1, arranged the gases pass freely through the spaces bearound a' central space c,the open ends of neath the plates; but on the admission of these tubes opening into the smaller chamliquid an efiective lute is formed (by the I00 bers 0 above and below. liquid closing the spaces beneath the plates) In each smaller chamber a and flush with which the gases will not pass at the ordinary working pressure. The first lute-box is a double one, consisting of the portions B and according to which one is luted (by liquid admitted by the pipes and Valves 2') the gases from the producer pass either to the ammonia-recovery tower A or without traversing this directly to the coolingtower O through the lute-box B or when thislat-v ter and the lute-box B are closed then through the lute-box B direct to the point of consumption, as required. When'the lutebox B is openthat is, not luted with liquid+ and the lute-box B is closed-luted with liquid--th'e gas passes through the lute-box 13 into the absorption-tower A and afterward.

passes through the pipe and lute-boX B down through the cooling-tower O and out through the then-open lute-box B at the backof the baffle-plate b in the closed lute-box B to the exitX.

in frontof the baflle-plate b in the lute-box 13? directly to the exit X. This arrangement allows the ammonia-recovery tower or the cooling-tower, or both, to be shut off for re-- pairs or other purpose without interfering with the production of gas.

Having now particularly described andascertained the nature'of the said invention and in What manner the same is to be performed, I declare that what I claim is- 1. The combination with gas-producers of an interchanger of heat through which the gases from the producer are passed and through which water is also passed so that the water abstracts heat from the gases, and means for bringing the water, thus heated into contact with air to producea mixture of air and Water-vapor, and means for passing the said mixture to the gas-producer, substantially as hereinbefore described.

2. In combination with gas-producersof an interchanger for cooling the gases therefrom consisting of alternately-arranged chambers, the alternate ones of which are provided with tubes in communication with intervening chambers provided with a passage for water, into, and from, the first-named chambers, and with deflectors to cause the water to pass around the tubes through which the gases pass, substantially as hereinbefore described.

3. The combination with an absorptiontowcr through which gases from a producer are adapted to be circulated, a-cooling-tower having a plurality of contiguous passages for the gas and water respectively, a passage connectingith'e upper ends of the gas-passages with the outlet from the absorption-tower, and a mixing-tower having an air-inlet at its lower end, and a water-inlet at its upper end connected by a passage with the upper ends of the water-passages of the cooliugtower, substantially as described.

4. The combination with an absorptiontower through which gases from a producer are adapted to be circulated, a cooling-tower having a plurality of contiguous passages for the gas and water respectively, a passage connecting the upperends-of the gas-passages with the outlet from the absorption-tower, a mixing-tower having an air-inlet at its lower end, and a water-inlet at its upper end connected by a passage with the upper ends of the water-passagesof the cooling-tower, bypassages from the gas-inlet pipe to the absorption-tower, to the upper ends of the gaspassages through the cooling-tower, and to the gas-outlet passage from thecooling-tow-er, and means at the junctions of the con-necting-passages between the towers and in the passage from the upper end of the absorption-tower to the cooling-tower, wherebysa-id passages may be closed and the absorptiontower, or both the absorption-tower and the cooling-tower, ent out of thelcircu-it for'the circulation of the gases, substantially as described.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

EDXVARD JAMES DUFF. Witnesses:

ALFRED PATCHETT, THOMAS SPRoAT.

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