SU1313497A1 - Reaction vessel - Google Patents

Abstract

The invention relates to catalytic apparatus, in particular for the conversion of carbon monoxide and carbon dioxide in processes for the production of elemental sulfur. The purpose of the invention is to increase the productivity of the reactor by improving gas distribution. S Case 1 in cross section is made but curved symmetric closed loop with an aspect ratio of 1: (2-5), which increases the useful volume of the reactor compared with the cylindrical shape. On the bottom 2, in one rus, the containers (К) 7 are installed, which form supply gas ducts (PG) 8 and discharge of gas ducts 9, which expand smoothly along the gas flow. The perforated retaining 14 and the rear 15 of the wall K are characterized by a live section of 10 to 50 ° C / o. For stability, K is defended by frame 10 and partitions 13. Shutter layer 23 is made at level K. Pipe nozzles 5 and collector 3 gas through the slit 11 of variable cross section with plates 12 is fed evenly into PG, passes shelves 13, retaining walls 14, catalyst 17, wall 15, flue gas outlet 9 and discharged from the reactor, b-yl. yy 23 7 S (L oo SAZ 4 CO FIG.

Description

The invention relates to chemical apparatus for the catalytic conversion of gases, in particular for the conversion of carbon monoxide and carbon monoxide, in the processes of obtaining elemental sulfur and carbon monoxide, in the processes of obtaining elemental sulfur and sulfur dioxide and can be used in chemical, petrochemical, gas processing, metallurgical and other industry

The purpose of the invention is to increase the productivity of the reactor by improving gas distribution.

FIG. 1 shows a reactor, vertical section; in fig. 2 is a section A-A in FIG. one; in fig. 3 is a view B in FIG. 1, axonometrics; in fig. 4 shows a section B-B in FIG. one; in fig. 5 - container. With catalyst, axonometric; in fig. 6 — node I in FIG. five.

The reactor contains a vertical housing 1 made in cross section in the form

4-5 calibers of the internal diameter of the inlet duct (translated into a cylindrical reactor), and the shelves 13 increase in width upwards along the gas flow according to a well-known law so as to separate approximately equal amounts of gas and suspended particles from the total flow and direct the streams normal to the part of the container that is enclosed between two adjacent rings.

10 Shelves 13 do not cause additional head losses and are used with large and small hydraulic resistances of the catalyst.

Container 7 is rectangular,

5 to the entire height of the reactor and is limited to the outer 14 and inner 15 perforated walls and front walls 16 (along the gas flow). The outer wall 14 is made with a living cross section, which is 10-50% less than the living cross section of the intra curvilinear symmetric closed 20 renal wall 15. One of the frontal contours with an aspect ratio of 1: (2-5), the walls 16 are made deaf, and the other is 30

for example, in the form of an oval. At the bottom of the housing 1, a flat flat bottom 2 is horizontally installed with feed manifolds 3, with branch pipes 4 for drainage and 5 for supplying gas from it. From above, removable cover 6 is attached to housing 1. Containers 7 are mounted on bottom 2 inside housing 1 so that they form a smooth supply pipe 8 and outlet 9 gas ducts flowing along the gas flow.

In order to increase the stability of the containers 7, as well as to seal their joints and ease of installation, the containers 7 are lightly supported on both sides by a lightweight frame 10, which is attached to the bottom 2 and is partially supported by the shelves on the body 1.

In the bottom 2, between the supply manifold 3 and the supply duct 8, a slit 11 of variable cross section, for example, extending to the center of the body, is provided. The cross section of the slit 11 is calculated taking into account the varying volume of the inlet duct 8, the available gas pressure and other factors so as to ensure a uniform distribution of gas from the supply manifold 3 to all containers 7 with minimal pressure losses. Above the slit 11, guide plates 12, which are fixed to the bottom 2, are installed, partly entering the slit 11 at different (along the slit length) depth.

The bejiH4HHa deepening of the plates 12 and their pitch are calculated so as to ensure a uniform distribution of gas with minimal pressure losses. Reflective shelves 13 are installed in the inlet ducts 8 on the frame 10 to ensure uniform distribution of gas throughout the height of the reactor.

35

40

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forged, each deaf frontal wall 16 in contact with a perforated frontal wall. For example, all containers have left walls blind, and right ones are perforated or vice versa. Such an embodiment of the walls 16 creates a parallel flow of gas through the catalyst 17 contained in the container 7. The width of the container 7 between the walls 14 and 15 is equal to the thickness of the catalyst bed 17 embedded in the container.

In order to quickly replace the catalyst 17, the bottom 18 of the container 7 and its lid 19 are openable.

Inside the container, the lattice (or perforated) links 20 are diagonally in plan and at an angle of 30-55 ° to the vertical, for example, in the form of gentle corners and shelves down.

The slit 11 in the bottom 2 is configured so that between the retaining wall 14 and the beginning of the slit 11, a threshold (not shown) is made, which is necessary to improve the flow uniformity when the gas leaves the slit 11 to the inlet flue 8.

The exhaust duct 9 is connected to the pipe 4 to divert the gas flow by the diffuser 21.

In the exhaust duct 9, a grid 22 is installed on the frame 10, onto which the barrier layer 23 of the catalyst 17 is poured. The barrier layer 23 is made at the level of the lid 19 of the container 7 and can also be made sectional for easy replacement.

The inlet duct 8 is divided by two deaf koschechevy partitions 24, located along its longitudinal axis to the entire height of the reactor. End walls 24

The width of the reflective shelves 13 and the step between the sections of the duct 8 is divided into two independent parts working in the same way. In places of conjugation of the curves that form the cross sections of the body, dividing deaf pedals are mounted to them also calculated in accordance with the uniform gas flow in height. For example, they are set through

4-5 calibers of the internal diameter of the supply duct (translated into a cylindrical reactor), and the shelves 13 increase in width upwards along the gas according to a known law so as to separate approximately equal amounts of gas and suspended particles from the total flow and direct the streams to to the part of the container that is enclosed between two adjacent rings.

Shelves 13 do not cause additional head losses and are used with large and small hydraulic resistances of the catalyst.

Container 7 is rectangular,

the entire height of the reactor and is limited to the outer 14 and inner 15 perforated walls and front walls 16 (along the gas flow). The outer wall 14 is made with a living section, which is 10-50% less than the living section inside

with

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five

0

five

forged, each deaf frontal wall 16 in contact with a perforated frontal wall. For example, all containers have left walls blind, and right ones are perforated or vice versa. Such an embodiment of the walls 16 creates a parallel flow of gas through the catalyst 17 contained in the container 7. The width of the container 7 between the walls 14 and 15 is equal to the thickness of the catalyst bed 17 embedded in the container.

In order to quickly replace the catalyst 17, the bottom 18 of the container 7 and its lid 19 are openable.

Inside the container, the lattice (or perforated) links 20 are diagonally in plan and at an angle of 30-55 ° to the vertical, for example, in the form of gentle corners and shelves down.

The slit 11 in the bottom 2 is configured so that between the retaining wall 14 and the beginning of the slit 11, a threshold (not shown) is made, which is necessary to improve the flow uniformity when the gas leaves the slit 11 to the inlet flue 8.

The exhaust duct 9 is connected to the pipe 4 to divert the gas flow by the diffuser 21.

In the exhaust duct 9, a grid 22 is installed on the frame 10, onto which the barrier layer 23 of the catalyst 17 is poured. The barrier layer 23 is made at the level of the lid 19 of the container 7 and can also be made sectional for easy replacement.

The inlet duct 8 is divided by two deaf koschechevy partitions 24, located along its longitudinal axis to the entire height of the reactor. End walls 24

5 divides the flue 8 into two independent parts working in the same way. In places of conjugation of the curves that form the hull sections, dividing dividing walls 25 are installed along the entire height of the reactor. In the extreme end portions of the reactor, end containers 26 are installed, but the shape follows the shape of the housing 1 to better utilize the useful volume of the reactor 5.

The entire body 1 is easily footed by bow arches or conventional straight laying (bottom 2), since there are no spherical surfaces in it.

The editor works as follows.

Through the nozzles 5 for supplying gas, it is fed to the supply manifold 3, from where it passes through the slot 11 to the feed duct 8. The gas goes out of the slot 11

and through it, and the diffuser 21 exits the reactor through the nozzle 4 for the removal of gas.

Claims (1)

Invention Formula A reactor containing a vertical body with a lid, a bottom and nozzles for supplying and discharging a gas stream, supplying a collector supplying and discharging. gas ducts, containers with perforated outer and inner walls, inside of which a catalyst and a catalyst barrier layer are located, characterized in that, in order to increase productivity by improving the distribution of gas, between the guide plates 12 are equal to 15 containers and a housing in cross section with a numbered flow in gas duct 8, in which, have a curvilinear closed symmetric thank to its cross-section, a raster contour, the case is equipped with a reflector along the gas, the flow is not tested shelves, placed Injected into the inlet of a large hydraulic resistance flue duct along the entire height along its height, the gas flow is uniformly extending axis and at the points of interface, and is controlled vertically by means of the front wall, deaf and burning shelves 13. Then, perforated, inlet and outlet the outer walls 14, it is additionally made flues smoothly broadening is uniformly distributed over the layer of catalysis along the gas flow, while the exterior 17 and its independent wall of the container passes through it has a living section the channels between the front walls 16. 25 is 10-50 smaller than the living section of the internal gas flow out through the inner wall, and the barrier layer catalysate wall 15 into the exhaust duct 9, which is located in the exhaust duct, also has a smoothly widened profile, from the level of the lid. and through it, and the diffuser 21 exits the reactor through the nozzle 4 for the removal of gas. Invention Formula B id Aa     .u - I- .--. - -. V. o X ---; fi & .2 FIG. 3 7/7 95ig.4 fi five FIG. 6 Compiled by l. Lazarenko Editor M. TsitkinaTehred I. VereEcorrector I. Erdeyi Order 1996/7 Circulation 511 Subscription VNIIPI USSR State Committee for Inventions of Discoveries 113035, Moscow, Zh-35, Raushsk nab. 4/5 Production and printing company, Uzhgorod, ul. Project, 4