FI68309C - REAKTOR FOER KATALYTISK OXIDATION AV KOLMONOXID OCH KOLVAETEFOERENINGAR - Google Patents

Description

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8 11 UTLÄCCNJWGSSKRIFT 6830 9 • ») PSk ® (45) Patent granted 12 CD 1935

Patent Meddelat (51) Kv.ik. * / Ii> t.ci. * F 23 B 5/04 FINLAND —FINLAND (21) PiWnttlhtktmu »- P» t »n« n «aknlng 802558 (22) Htkemlipllvl - AntÄknlngidtg 14.0 8.8 0 (23) Alkuptivl — Glltlghtudtg 26.04.79 (41) Tullut | external «kil - Bllvlt offentllg 14.08.88

Patent and Advertisement Wanted (Nthtlvlkilpunon) »Date | - patent-och r «gi« t * r »tyral» an '' Anidkin utligd oeh utUkrlfun publlcertd 30 · 04.85 (3? ... 3) (31) Pyydetty «tuolkeu» - 3 «gärd r-lorlt-jt 26.04 .78 s; -SvjrIge (SF) 7804763-6 ·; ί * '! . t::. <ί r> 9 le Continental, Block A, MC-Monte Carlo,

Mon: v.! MC! (74) Forssin & Salo.iäo Oy (54) Reactor for the catalytic oxidation of silicon monoxide and hydrocarbon compounds1 - fteaktor Mr catalytisk oxidation av kolmonoxid och koiväteföronirsgar (62) Separated from application 791367 (patent 65133) ~

Avdelad frSn ansökan 791367 (patent 65133)

The main object is a reactor for the catalytic oxidation of carbon monoxide and hydrocarbon compounds, comprising a chamber and an end element, the walls of which chamber contain, in whole or in part, a material catalyzing the oxidation of carbon monoxide and hydrocarbon compounds.

The present invention relates to a cheap and quite efficient reactor for the catalytic barrier of carbon monoxide and hydrocarbon compounds in the oxidation of hot combustion gases coming from, for example, a fireplace or an internal combustion engine.

The invention is essentially characterized in that said chamber has a partition wall which divides the space between the end walls into two oat spaces, that said space comprises an annular channel to which are connected through the gap communicates with the annular duct along all or part of the length of the duct, and that said parts are provided with outlets for the combustion gases at a certain distance from the central opening of the partition.

The invention will be described in more detail below with reference to the accompanying drawings, in which an embodiment is shown.

Figure 1 shows a reactor according to the invention partly in projection and partly in section along line 1-1 in Figure 3.

Figure 2 shows a section along the meandering line Ι1-ΙΪ in Figure 1.

Figure 3 shows a section along the meandering line TII-ITI in Figure 1.

The reactor shown in the figures has a chamber with two end supports 1 and 2 and a partition wall between the end walls of the space divided into two parts 3 and A, which consists of two parts 5 and 6. The end walls 1 and 2 are mainly planar and elongate rounded as shown in Figure 1. and 2 are each provided with their own circumferential edge 7 and 8, respectively, which, together with the surrounding parts of the partitions 5 and 6, form the sliding walls of this chamber.

One or more and preferably all of said walls of this chamber are made, in whole or in part, of a material containing carbon monoxide and hydrocarbon-catalyzing oxidizing compounds. An example of a material from which the walls can be made is a mixture containing 20-30 wt% chromium, A-6 palnoX aluminum, 0-3 palnoZ cobalt and the rest iron. When using the reactor, sna a mixture on the surface of the alumlinloksldl layer,

Having said catalytic effect. Another example of a suitable material for the walls of a chamber is a strong heat-resistant ceramic, which contains for the most part, e.g. at least 60 palnoX Al 2 O 2.

This partition wall consisting of parts 5 and 6 includes an annular channel 9, which is located very close inside the side walls of the jar. Connected to this duct 3 68309 9 is an inlet 10 for hot combustion gases, e.g. from an internal combustion engine or a fireplace. The partition wall consisting of parts 5 and 6 is provided with a central opening 11, which connects both part spaces 3 and 4 to each other, and which, by means of a certain slot (or several slots) 12 here, communicates with the annular channel 9. The slot 12 may extend over the entire periphery of the opening 11 and the channel 9, but is shown according to Figures embodiment extend only half (in Figure 1 the upper half) of more than this opening 1.1 of the outer and the channel 9 from the inner circumferential clatter-density, as indicated by the gap päättymlsmerkinnöillä 13 in Figures 1 and 2. The end walls 1 and 2 are each provided at the opening 11 in the middle of the partition as cones directed towards the central opening! in the end wall .1] n 2.

This chamber consisting of parts 1,2,5 and 6 is surrounded at a certain distance by a jacket in the form of a shell .16 and a lid 18 with thermal insulation 17. The chamber is held at a certain distance from the walls of the shell 16 and 18 by a set of clearance 19. The removal of parts 3 and 4 ends to the jacket 16 and 18, which is provided with an outlet 20 for combustion gases. The jacket shell 16 is surrounded in a certain space by a jacket 22 provided with thermal insulation 21, where the removal 20 of this jacket ends And which is provided with an outlet 23 for lump gases.

When the reactor is operated, hot combustion gases containing carbon monoxide and hydrocarbon compounds are introduced through the inlet 10 to the annular duct 9, where the gases have to flow at high velocity along the orbit and later further flow into the gap 12 in the center of the partitions 5 and 6. 11 differ on both sides of the parts 3 and 4, where they meet the parts 14 of the end walls 1 and 2, which distribute the gases in the parts 3 and 4.

The gases quietly exit the sub-spaces 3 and 4 in time through the outlet 15 to an intermediate space between the chambers 1,2,5 and 6 and the jacket 16 and 18, where the gases flow around the chamber to this jacket outlet 20 to then flow into the intermediate space between the shell 15 and the jacket 22. out via outlet 23. As the gases flow within and around the can, 1,2,5 and 6, the gases come into immediate and prolonged contact with the high temperature temperature chamber material under the action of the gases 4 68309, thereby catalyzing the oxidation of carbon monoxide and hydrocarbon compounds in this gas so that combustion products teas are virtually free of carbon monoxide and hydrocarbon compounds.

Claims (4)

68309 A reactor for the catalytic oxidation of carbon monoxide and hydrocarbon compounds, comprising a chamber (1,2,5,6) and a pH (1,2), the chamber walls (1,2,5,6) of which contain, in whole or in part, a material catalyzing the oxidation of carbon monoxide and hydrocarbon compounds, characterized in that said chamber has a partition (5,6) dividing the space between the end walls into two parts (3,4), said partition (5,6) containing an annular channel (9) , to which is connected an inlet (10) for hot combustion gases and a central opening (11), which connects both parts (3,4) to each other and to which partitions (5, 6) one or. via a plurality of slots (12) communicates along all or part of the length of the annular channel (9). And that said oaatflat (3,4) are provided with outlets (15) for fuel gases at a certain distance from the central opening (II) of the partition wall (5,6). Reactor according to Claim 1, characterized in that each end wall (1, 2) is provided with a conical projection (14) facing the central opening (11) opposite the central opening (11) of the partition wall (5, 6). Reactor according to claim 1 or 2, characterized in that said chamber (1,2,5,6) is surrounded at a distance by a shell (16, 10) into which the discharge (15) of the chambers (3,4) ends and which is provided with with outlet (20) for flue gases. Reactor according to claim 3, characterized in that said shell (16, 18) is surrounded at a distance, preferably thermally insulated, by a jacket (22) at which the shell outlet (15) terminates and has an outlet (23) for flue gases.