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High-temperature reactor and chemical engineering system using the same

A high-temperature reactor and high-level technology, applied in the chemical industry, can solve the problems of cracking, falling off, unfavorable installation and disassembly, increasing investment and operating costs of the refractory lining, and achieve the effect of cost saving and volume reduction.

Active Publication Date: 2015-04-29
BEIJING HUAFU ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (1) In order to avoid damage to the high-temperature reactor due to strong exothermic reactions, the refractory lining of the existing high-temperature reactor usually has a considerable thickness, which makes the overall volume of the existing high-temperature reactor large, which is not conducive to installation and disassembly
[0004] (2) After undergoing equipment vibration and / or drastic temperature changes, the refractory lining of the existing high-temperature reactor is prone to damage such as cracking and falling off; once the refractory lining is damaged, the strong exothermic reaction will directly damage the high-temperature reactor. shell, which may lead to safety accidents
[0005] (3) Since the temperature of the high-temperature reactor is too high during the strong exothermic reaction, the production equipment used in the follow-up process with the high-temperature reactor (for example: the outlet pipe of the high-temperature reactor, the waste heat boiler for heat recovery) etc.) also need to have quite strong high temperature resistance, which brings many difficulties to the selection and manufacturing of production equipment in the subsequent processing process, and also increases investment and operating costs

Method used

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  • High-temperature reactor and chemical engineering system using the same
  • High-temperature reactor and chemical engineering system using the same
  • High-temperature reactor and chemical engineering system using the same

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Experimental program
Comparison scheme
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Embodiment 1

[0058] Such as figure 2 Shown, a kind of high-temperature reactor, compared with above-mentioned technical scheme, this embodiment one has adopted following technical scheme more specifically:

[0059] (1) The air inlet 21 of the inner cylinder includes a plurality of air inlet holes; these air inlet holes are distributed on the top of the inner cylinder 2, and / or on the side of the inner cylinder 2 corresponding to the upper cavity 23 of the inner cylinder In actual application, the top of the inner cylinder 2 and the side wall of the inner cylinder 2 corresponding to the upper cavity 23 of the inner cylinder are preferably equipped with air inlet holes, so that the raw material gas can flow from the axial and radial directions. Multiple positions in the direction enter the interior of the inner cylinder 2, and all of them can be in contact with the catalyst bed 5.

[0060] (2) The gas communication pipe 41 is provided with a plurality of ventilation holes; these ventilatio...

Embodiment 2

[0067] Such as figure 1 Shown, a kind of high-temperature reactor, compared with embodiment one, this embodiment two has adopted following different technical solutions more specifically:

[0068] (1) The air inlet 21 of the inner cylinder is located on the top of the inner cylinder 2; in practical applications, the top of the inner cylinder 2 is preferably a large air inlet 21 of the inner cylinder as a whole, so that the high temperature reactor can A heating body is arranged on the top, and the heating body extends into the air inlet 21 of the inner cylinder to increase the temperature of the gas entering the catalyst bed 5, thereby creating favorable conditions for the heating and reduction of the catalyst bed 5.

[0069](2) The gas communication pipe 41 is provided with at least two vent holes, and at least one vent hole is located in the upper cavity 23 of the inner cylinder, and at least one vent hole is located in the lower cavity 24 of the inner cylinder; in practical...

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Abstract

The invention discloses a high-temperature reactor and a chemical engineering system using the same. The reactor comprises a housing (1) and an inner cylinder (2), wherein the inner cylinder (2) is disposed inside the housing (1); a gap gas-flow channel (3) is disposed between the outer wall of the inner cylinder (2) and the inner wall of the housing (1); a catalyst bed (5) and heat exchange tubes (6) are disposed in the inner cylinder (2) from top to bottom in sequence; the gas inlet (11) of the housing is communicated with the gas inlet (21) of the inner cylinder through the gap gas-flow channel (3); and the gas outlet (12) of the housing is communicated with the gas outlet (22) of the inner cylinder. According to the reactor and the system, parts used for a strong exothermic reaction and parts used for cooling are integrated in the inner cylinder (2), thereby reducing the size of the high-temperature reactor, reducing materials used for equipment, decreasing system resistance drop, achieving energy conservation and greatly lowering temperature of materials discharged from the high-temperature reactor, thus creating favorable conditions for model selecting, machining and manufacturing of equipment used in subsequent processes.

Description

technical field [0001] The invention relates to the field of chemical technology, in particular to a high-temperature reactor and a chemical system using the high-temperature reactor. Background technique [0002] In the field of chemical industry, many chemical reactions are strongly exothermic reactions that need to be carried out in high temperature environments (strong exothermic reactions usually refer to reactions with enthalpy values ​​greater than 200kJ / mol), such as methanation reactions. Since these strongly exothermic reactions usually have the characteristics of violent reaction, large heat release, and high reaction temperature, most of these strongly exothermic reactions in the prior art are carried out in high-temperature reactors with refractory linings. But, there is following shortcoming at least in the high temperature reactor in the prior art: [0003] (1) In order to avoid damage to the high-temperature reactor due to strong exothermic reactions, the re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J8/02
Inventor 王志远赵正绪刘延斌彭良华兰玉顺张欢迎李会
Owner BEIJING HUAFU ENG