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trickle bed reactor

A reactor and trickle bed technology, applied in the field of fixed bed reactors, can solve the problems of high manual labor intensity, high labor intensity, multiple catalysts, etc.

Active Publication Date: 2021-07-09
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of reverse unloading the catalyst, the catalyst is more broken, and the whole process will cause more catalyst loss; and it takes a long time, the labor intensity is high, and the working environment is harsh. Due to the long time consumption and high labor intensity, the production is greatly improved. cost

Method used

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Examples

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Effect test

Embodiment 1

[0059] After the trickle bed reactor completes a reaction cycle, gradually reduce the input amount of raw material, and also pass into naphtha in the described trickle bed reactor, afterward, nitrogen is passed in the trickle bed reactor, Then the discharge port 102 is opened to discharge the catalysts in each bed 11 in sequence. Wherein, the configuration in the trickle bed reactor is as follows:

[0060] The reactor shell 10 provided with the feed port 100, the discharge port 101 and the discharge port 102 is roughly cylindrical, and the inner diameter of the reactor shell 10 is 2438mm, and three beds 11 are arranged in the reactor shell 10. The top is the first bed, the second bed and the third bed, in which:

[0061] The headroom height of the first bed is 5300mm, and the height of the upper part of the first bed is 300mm. The first bed is provided with a ceramic ball layer with a thickness of 200mm from top to bottom (the ceramic ball layer is filled with a diameter of 1...

Embodiment 2

[0067] Select the same trickle bed reactor as in Example 1, wherein the extension pipe section 121 of each discharge pipe 12 is a carbon fiber cloth bag with open ends at both ends, and the rest of the configuration conditions are the same, and the same method as in Example 1 is selected. The catalyst in each bed 11 is unloaded.

Embodiment 3

[0069] Select the trickle bed reactor identical with embodiment 1, and the opening and closing unit 13 is set at the bottom port of the extension pipe section 121 of each discharge pipe 12, wherein, the opening and closing unit 13 is to have the preferred structure provided by the present invention (i.e. Figure 5 The opening and closing unit 13 of the structure shown in ), the rest of the configuration conditions are the same, and the catalyst in each bed 11 is unloaded in the same way as in Example 1.

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Abstract

The invention relates to the field of fixed-bed reactors, and discloses a trickle-bed reactor. The trickle-bed reactor includes a feed port (100) for raw materials to enter, a discharge port (101) for product discharge and The reactor housing (10) of the discharge port (102) for catalyst discharge, and a plurality of beds (11) for loading catalyst installed in the reactor housing and arranged along the height direction of the reactor housing , the trickle bed reactor also includes a discharge pipe (12) for the passage of the catalyst, and the discharge pipe includes two ends extending into the upper layer of the adjacent bed respectively. The connecting pipe section (120) at the bottom and the top of the lower bed layer and the extension pipe section (121) connected with the lower end of the communicating pipe section and extending downward. The trickle bed reactor can reduce the back-mixing rate of the catalyst in each bed layer, and reduces the back-mixing phenomenon of the catalyst.

Description

technical field [0001] The invention relates to a fixed bed reactor, in particular to a trickle bed reactor. Background technique [0002] Reactor is a kind of equipment to realize the reaction process, which is widely used in chemical industry, oil refining, metallurgy and other fields. The reactor is used to realize liquid-phase single-phase reaction process and multi-phase reaction process such as liquid-liquid, gas-liquid, liquid-solid, gas-liquid-solid, etc. Commonly used reactors include tubular reactors, tank reactors, bubbling reactors (also known as bubbling stirred tanks), stirred tank slurry reactors, tower reactors, and jet reactors. In addition, it also includes reactors with a bed of solid particles (also known as packed bed reactors), which are filled with solid catalysts or solid reactants, and when gases and / or liquids pass through fixed or moving solid particle beds to achieve multiple Phase reaction process, including fixed bed reactor, fluidized bed rea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J8/02B01J8/04C10G65/12
Inventor 董松涛赵阳李明丰胡志海
Owner CHINA PETROLEUM & CHEM CORP
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