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Double-shaft radial flow reactor

A reactor, axial and radial technology, applied in the field of biaxial radial flow reactor, can solve the problems affecting the reaction efficiency, achieve the effect of improving the reaction efficiency, good reaction effect and prolonging the service life

Active Publication Date: 2012-07-18
NANJING GOODCHINA CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to design a biaxial radial flow reactor without bias flow and reaction dead angle in view of the problem that the existing radial flow reactor has bias flow and dead angle which affect the reaction efficiency

Method used

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Examples

Experimental program
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Embodiment 1

[0035] Such as diagram 2-1 , 3-3 shown.

[0036] A kind of biaxial radial flow reactor, it comprises shell 2 and reactor internal part 3, and reactor internal part 3 is positioned at shell 2, and described shell 2 is provided with reactor inlet 1 and reactor outlet 8, and reaction The internals 3 include a distribution cylinder 4 and a gas collection cylinder 6, a catalyst bed 5 is installed between the gas collection cylinder 6 and the distribution cylinder 4, the reactor outlet 8 communicates with the outlet end of the gas collection cylinder 6, and the inside of the reactor An upper axial reaction section 14 and a lower axial reaction section 16 are respectively formed on the upper end and the lower end of the member 3, and a radial reaction section 15 is formed between the upper axial reaction section 14 and the lower axial reaction section 16; The upper end of the catalyst bed 5 is equipped with a porous upper cover and a wire mesh 12, and the lower end is equipped with...

Embodiment 2

[0045] Such as Figure 2-2 , 3-4.

[0046] The difference between this embodiment and Embodiment 1 is that the distribution cylinder 4 of this embodiment is located in the gas collection cylinder, while the gas collection cylinder 6 of Embodiment 1 is located in the distribution cylinder 4, the reaction gas enters from the reactor inlet 1, and a part of the gas enters in the axial direction The flow mode passes through the porous upper cover and the wire mesh 12, enters the radial section 14 of the upper shaft to react with the catalytic bed layer, and then flows into the gas collector 6 of the outer ring. The reaction gas in the middle full radial reaction section is directly from the center of the reactor. The distribution cylinder 6 enters the gas collector through the middle full radial section 15 from the inside to the outside, and another part of the gas flows through the middle full radial section of the distribution cylinder 4 and directly enters the lower axial re...

Embodiment 3

[0048] Such as Figure 2-3 shown.

[0049] The difference between this embodiment and implementation one and two is that a heat transfer device 23 is also installed in the catalytic bed 5, and the heat transfer device 23 is composed of a heat transfer tube plate 21, a large header 18, a small header 19, a connecting pipe 20, a cooling The fluid inlet pipe 17 and the cooling fluid outlet pipe 22 are composed. The inlet and outlet ends of each heat transfer tube plate 21 are connected to the corresponding small headers 19 through their respective connecting pipes 20, and each small header 19 is connected to the corresponding large headers. 18 are connected, and the large header 18 is connected with the corresponding cooling fluid inlet pipe 17 or cooling fluid outlet pipe 22, such as Figure 2-3 shown. The heat removal device of this embodiment can be used in both the reactor with flow structure from outside to inside (Example 1), and also the reactor with flow structure from ...

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Abstract

A double-shaft radial flow reactor comprises a shell (2) and a reactor internal part (3), wherein the reactor internal part (3) is located in the shell (2). A reactor inlet (1) and a reactor outlet (8) are disposed on the shell (2). The reactor internal part (3) comprises a distribution cylinder (4) and a gas collection cylinder (6), a catalyst bed (5) is arranged between the gas collection cylinder (6) and the distribution cylinder (4), and a reactor outlet (8) is communicated with the outlet end of the gas collection cylinder (6). The double-shaft radial flow reactor is characterized in that the upper end and the lower end of the reactor internal part (3) respectively form an upper axial reaction section (14) and a lower axial reaction section (16), and a radial reaction section (15) is formed between the upper axial reaction section (14) and the lower axial reaction section (16). A multi-hole upper cover and screen mesh (12) are installed at the upper end of the catalyst bed (5), and a multi-hole basket bottom and screen mesh (7) is installed at the lower end of the catalyst bed (5). The double-shaft radial flow reactor is simple in structure, good in reaction effect, capable of not only increasing reaction efficiency by more than 10% but also prolonging service life of the catalyst by more than 20% and remarkable in economic efficiency.

Description

technical field [0001] The invention relates to a gas reactor, in particular to a reactor with more sufficient reaction, no bias flow and no reaction dead angle, mainly radial flow reactor, specifically a biaxial radial flow reactor. Background technique [0002] As we all know, the development and application of radial flow reactors have a history of several decades, and the earliest appearance is the full radial flow reactor (see Picture 1-1 ), that is, the gas flow from the periphery to the center (or from the center to the periphery) all reacts through the catalyst bed in a radial direction, and its biggest advantage is that the fluid resistance is low (only 10% to 50% of the axial flow reactor), and Highly active small particle catalysts can be used, thereby greatly increasing the capacity of the reactor. [0003] With the development of technology, people think that the utilization rate of the catalyst in zone a of the full radial reactor is reduced due to short circ...

Claims

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Application Information

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IPC IPC(8): B01J8/04
Inventor 吕仲明
Owner NANJING GOODCHINA CHEM TECH
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