Reactor for catalytic purification of gaseous ejections

FIELD: the invention refers to industrial ecology and may be used for flameless purification of ejections of industrial enterprises.

SUBSTANCE: the reactor for catalytic purification of gaseous ejections has a cylindrical body, which interior surface is covered with a catalyst with a source of infrared radiation placed in the body, a tube heat exchanger located in the lower part of the body, a turbine mixer located in the upper part of the body and additionally - a permeable cylindrical drum out of the catalyst so that the axles of the symmetry of the drum and body coincide. The drum embraces the mixer and the source of infrared radiation fulfilled in the shape of a six-ends star is installed in the middle of the body so that its flatness is perpendicular to the axle of the symmetry of the reactor. The drawing off socket is connected with the tube space of the heat exchanger, and the feeding socket is located so as to provide heating of gaseous ejections with the heat of the gases moving out of the reactor.

EFFECT: increases effectiveness of purification of gaseous flow and reduces power inputs for heating the gas flow.

1 dwg

 

The invention relates to industrial ecology and can be used for flameless abatement of industrial enterprises.

A device for catalytic combustion of waste gases containing cylindrical body with a bottom, which is installed inside the heat exchanger, consisting of a fixed tube sheet, tubes and floating tube, between the lattices of the catalytic element to the grid attached convex elliptical perforated plate with a Central axial hole and the guide plate (USSR author's certificate No. 1877242, CL. 2 F 23 G 7/06, publ. 05.12.76. Bull. No. 45).

The closest analogue is a reactor for catalytic purification of gaseous emissions containing cylindrical body, the inner surface of which is coated with catalyst installed at the inlet of the casing, a spiral swirl and accommodated in the housing coaxially of the source of infrared radiation and disk elements with the guide edges, the surface of which is directed to the input and output housings coated with a catalyst (patent RF №2097656, CL. 6 F 23 G 7/06, publ. 27.11.97. Bull. No. 33).

The disadvantage of this device is the low efficiency of cleaning gaseous emissions, the absence of heat recovery of the outgoing gas stream.

Object of the invention is povertyeradication cleaning gaseous emissions, heat recovery leaving a purified gas stream and reducing energy consumption for heating the gas stream.

The problem is solved in that the reactor for catalytic purification of gaseous emissions comprises a cylindrical housing, the inner surface of which is coated with the catalyst placed in the enclosure of the source of infrared radiation, it is new that the reactor further comprises a tubular heat exchanger disposed in the lower part of the housing, turbine mixing device located in the upper part of the housing, and optionally permeable cylindrical shell of the catalyst installed in the upper housing so that the axis of symmetry of the shell and body are the same, and the shell comprises a mixing device, and the source of infrared radiation is made in the form of six-pointed star, set in the middle of the shell in such the way that his plane perpendicular to the axis of symmetry of the reactor, an outlet pipe in communication with the annular space of the heat exchanger, and the supply pipe is thus to provide heating of the gaseous emissions from the heat of exhaust gases of the reactor.

This allows to increase the efficiency of purification of the gas stream due to the additional heat in the heat exchanger, increasing the catalyst surface and ver is arnosti contact provide turbine mixing device. The heat recovery from the outgoing gas stream reduces thermal pollution of the environment.

The drawing shows a diagram of the proposed reactor.

Reactor for catalytic purification of gaseous emissions comprises a cylindrical housing 1, the inner surface of which is coated with a catalyst, which is an additional tubular heat exchanger 2 in the lower part of the housing 1, the infrared ray source 3, made in the form of six-pointed stars placed in the middle of the housing 1 so that the plane of the source of infrared radiation is perpendicular to the axis of symmetry of the reactor, turbine mixing device 4 placed in the upper part of the housing 1, driven by a motor 5, and more permeable cylindrical shell of the catalyst 6, placed in the upper part of the housing 1 so that the axis of symmetry of the shell 6 and the housing 1 are the same, and the shell 6 comprises mixing device 4, the gaseous emissions are fed into the reactor through the supply pipe 7, and is removed through outlet pipe 8.

The reactor operates as follows.

Gaseous emissions are fed into the reactor through the supply pipe 7 into the cylindrical housing 1, while they are heated in a tubular heat exchanger 2, located in the lower part of the reactor, the exhaust gases. G is savy flows into the upper part of the reactor, where it is additionally heated by the infrared ray source 3, made in the form of six-pointed star, which ensures the uniformity of all the incoming gas. Turbine mixing device 4 placed in the upper part of the body 1 and driven by an electric motor 5 generates the turbulization of the gas stream, thereby increasing the probability of contact of the gas with the catalyst made in the form of permeable cylindrical shell 6. Passing through the permeable shell 6 of the catalyst, the gas flow decimals on the catalyst, which lined reactor vessel 1. The cleaned gas enters the annulus of the heat exchanger 2, where the heat recovery of exhaust gases, and then is removed through outlet pipe 8.

Thus, the proposed device allows you to:

to increase the cleaning efficiency of gaseous emissions;

to recover the heat of the outgoing gas stream;

- to reduce energy consumption for heating the gas stream.

Reactor for catalytic purification of gaseous emissions containing cylindrical body, the inner surface of which is coated with the catalyst placed in the enclosure of the source of infrared radiation, wherein the reactor further comprises a tubular heat exchanger placed at the bottom of the hour and the housing, turbine mixing device located in the upper part of the housing, and optionally - permeable cylindrical shell of the catalyst installed in the upper housing so that the axis of symmetry of the shell and body are the same, and the shell comprises a mixing device, and the source of infrared radiation is made in the form of six-pointed star, set in the middle of the housing so that his plane perpendicular to the axis of symmetry of the reactor, an outlet pipe in communication with the annular space of the heat exchanger, and the supply pipe is thus to provide heating of the gaseous emissions from the heat of exhaust gases of the reactor.



 

Same patents:

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