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Upflow type reactor gas-liquid distribution disc and applications thereof

A gas-liquid distribution and reactor technology, which is used in chemical instruments and methods, hydrocarbon oil cracking, petroleum industry, etc. Deterioration of the effect and other problems, to achieve the effect of simple structure, high space utilization, reducing collision and coalescence

Active Publication Date: 2015-04-15
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can control the fluid distribution and cannot improve the mass transfer efficiency of the gas-liquid two-phase
[0007] The above-mentioned prior art also has the problem of inflexible operation, that is, only under the condition that the operating conditions are relatively consistent with the design conditions, can it have a good use effect, and when the operation fluctuates, the gas-liquid distribution plate cannot adapt to the change of operating conditions , leading to the deterioration of the gas-liquid mixing effect

Method used

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  • Upflow type reactor gas-liquid distribution disc and applications thereof
  • Upflow type reactor gas-liquid distribution disc and applications thereof
  • Upflow type reactor gas-liquid distribution disc and applications thereof

Examples

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Embodiment 1

[0028] Such as figure 1 , 2 As shown, the gas-liquid distribution plate of the upflow reactor is composed of an upflow gas-liquid distribution plate tray 6 , a one-way valve 1 and a riser pipe 4 . The one-way valve 1 of this embodiment adopts a spherical one-way valve operating mechanism, that is, when the spherical one-way valve operating mechanism rises upwards, the logistics flow through in one direction. The one-way valve 1 is composed of a spherical one-way valve operating mechanism 3 and a grille crushing net 2 with a diversion function. The grid crushing net 2 is composed of two layers of conical cylindrical annular walls 10 with a small bottom and a large upper top, a grid 11 evenly distributed between the conical cylindrical annular walls 10, and a screen-like crushing net 12 above. After the gas-liquid mixture material passes through the catalyst bed in the lower part of the reactor, the liquid phase passes through the gas-liquid distribution tray 6 upwards from th...

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Abstract

The present invention relates to an upflow type reactor gas-liquid distribution disc and applications thereof. According to the present invention, a suitable number of liquid lifting pipes are arranged on the distribution disc, the liquid lifting pipes are straight through pipes with openings on both ends, the opening on the upper end is connected with a distribution disc column plate, and is communicated with the upper portion of the column plate, the opening on the lower end extends into a liquid surface below the gas-liquid distribution disc, a space between the lower portion of the distribution disc column plate and the liquid surface and on the outer side of the liquid lifting pipe forms a gas collection chamber, and unidirectional valves are uniformly arranged in gaps surrounding the opening of the liquid lifting pipes on the distribution disc column plate, and control a stream to flow from bottom to top. With the upflow type reactor gas-liquid distribution disc, the gas phase can be distributed in the liquid phase in a micro bubble form so as to increase gas-liquid double phase mass transfer efficiency.

Description

technical field [0001] The invention relates to a gas-liquid distribution plate for an upflow reactor and its application, which belongs to the field of petrochemical industry, and is especially suitable for uniform distribution of gas-liquid two-phase flow in an upflow reactor with gas-liquid two-phase feed. Background technique [0002] In the field of petrochemical industry, fixed bed reactor is the most widely used. According to the feeding mode of fixed bed reactor, it can be divided into upper feed (ie downflow) and lower feed (ie upflow) fixed bed reactor. Taking the fixed-bed hydrogenation reactor as an example, the ideal state of mass transfer is: hydrogen is continuously dissolved in the raw material, and the raw material is in contact with the catalyst to carry out the hydrogenation reaction. Therefore, in order to give full play to the performance of the catalyst, it is necessary to set up reasonable reactor internals to make the gas-liquid flow evenly distribut...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J8/02C10G49/00C10G47/00C10G45/00
Inventor 王喜彬贾丽
Owner CHINA PETROLEUM & CHEM CORP
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