SU1699582A1 - Apparatus for catalytic purification of gases - Google Patents

Abstract

The invention relates to apparatuses for carrying out heterogeneous catalytic processes and can be used in a gas cleaning system for emissions of various industries, for example, for purifying industrial gases from CO, and improves the cleaning efficiency and efficiency of the apparatus. This is achieved by reducing the slip of unreacted gases, as well as reducing the weight and simplifying the design of the rotating parts. 1 hp f-ly, 2 ill.

Description

The invention relates to apparatus for carrying out heterogeneous catalytic processes and can be used in the metallurgical, chemical, oil refining and other industries in the gas cleaning system of emissions from various industries, for example for purifying industrial gases from CO.

A known apparatus for carrying out catalytic reactions comprises a thermally insulated housing, inside of which a partitioned rotor with a two-layer filler of heat absorbing and catalytically active materials is located, pipes for introducing contaminated gas and output of the reacted gas 1.

The disadvantages of this device are the high energy costs of rotor rotation, especially at high gas consumption to the reactor, and the low cleaning efficiency due to overflows of the unclean gas.

A known apparatus for the catalytic purification of gases with a fixed bed of heat-absorbing material with periodic switching of the gas supply direction by means of a system of valves 2.

The disadvantages of the known construction include the periodicity of the process and large flows of unreacted gases (up to 30%) during valve switching.

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The purpose of the invention is to increase the cleaning efficiency and efficiency of the apparatus.

To achieve this goal, in a device for catalytic gas cleaning, comprising a housing, nozzles for supplying and discharging gas flow, a two-layer filler of heat absorbing and catalytically active materials, the filler is placed on a stationary partitioned disc, and a rotating truncated cone a sloping partition is placed, forming supply and exhaust ducts with the walls of the cone. On a larger base of the cone, two pie seals are fixed.

At the same time, the side surface of the cone, which forms the inlet flue with the partition, is made of a continuous sheet, and the deflecting flue is formed from perforated.

1 shows an apparatus for catalytic gas cleaning, a general view in section; figure 2 - section aa in figure 1.

The apparatus for catalytic gas cleaning comprises a housing 1 with an inlet 2 and an outlet 3, a partitioned disk with a two-layer filler of heat absorbing 4 and 5 materials catalytically active 5, fixed fixed in the reactor housing, rotating truncated cone 6 mounted on the nozzle 2 for supplying gas flow, a partition 7 placed in a cone, forming a supplying 8 and a discharge 9 ducts, and segmented sector pie plates fixed to a larger base of the cone 10. The cone 6 rotates by means of an electric drive 11.

The device works as follows.

Gases polluted by harmful, including combustible, components, through the gas inlet 2 and the feed flue 8 of the rotating truncated cone, are directed to the apparatus, where the heat-absorbing layer 4 and the catalyst 5 of the fixed partitioned disk are heated to a temperature of start a catalytic reaction. The catalytic gas cleaning reaction is carried out in the upper part of the apparatus in the catalyst bed 5, and afterburning energy is recovered in the heat-absorbing layer 4. Pass the second pass through a partitioned disc, the purified gas through the exhaust duct 9 truncated

the cone enters the collecting box and the pipe 3 for the removal of gas,

The rotating truncated cone b is divided by an inclined partition 7, which

forms with the walls of the cone the inlet 8 and the outlet 9 ducts, with the lateral surface of the cone forming the inlet duct with the partition, made of a solid sheet, and forming the outlet

perforated gas duct. When the truncated cone rotates, a periodic change in the direction of gas movement through the sections of the partitioned disc occurs.

To eliminate the flow of gas under the partitioned disk on a larger base of a truncated cone, two sector plates with a seal 10 are installed. Moreover, the dimensions of these sector plates

must be equal to or slightly larger than the sizes of the individual sector sections of the partitioned disk to eliminate the flow of gases in the horizontal direction.

When using the proposed apparatus as compared to the known, the degree of gas purification increases due to a significant reduction in the unreacted gas leakage, and also decreases

energy and operating costs due to a significant reduction in weight and the structural complexity of the rotating parts.

Claims (2)

1. Catalytic Purifier gases, comprising a housing, nozzles for supplying and discharging gas streams and a two-layer filler made of heat-absorbing and catalytically active material inside it, characterized in that, in order to increase the cleaning efficiency and efficiency of the apparatus, the filler is placed on a stationary partitioned disk and for The gas flow inlet is fitted with a rotating truncated cone in which a sloping partition is placed, forming supply and exhaust ducts with the walls of the cone, while on a larger base of the cone two sector plates are fixed that overlap the individual sectional and torus sections of the partitioned disk. 2. The apparatus according to claim 1, characterized in that the surface of the cone, forming the inlet flue is partitioned, made of a solid sheet, and the forming discharge is perforated BUT i eight