Trickle bed reactor

A reactor and trickle bed technology, applied in the field of fixed bed reactors, can solve the problems of long time consumption, increased production cost, high labor intensity, etc.

Active Publication Date: 2019-05-07
CHINA PETROLEUM & CHEM CORP +1
View PDF13 Cites 1 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Trickle bed reactor
  • Trickle bed reactor
  • Trickle bed reactor

Examples

Experimental program
Comparison scheme
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.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
thicknessaaaaaaaaaa
diameteraaaaaaaaaa
Login to view more

Abstract

The present invention relates to the field of fixed bed reactors, and discloses a trickle bed reactor, which comprises a reactor shell (10) and a plurality of bed layers (11) used for loading catalysts and arranged in the reactor shell, wherein the reactor shell has a material inlet (100) for feeding a raw material, a material outlet (101) for discharging a product, and a material discharge port (102) for discharging the catalyst, the bed layers are arranged along the height direction of the reactor shell, the trickle bed reactor further comprises a material discharge pipe (12) for the passingthrough of the catalyst, the material discharge pipe comprises a communication pipe section (120) and an extending pipe section (121) connected to the lower end of the communication pipe section andextending downward, and both ends of the communication pipe section respectively extend into the bottom portion of the upper bed layer and the top portion of the lower bed layer of the two adjacent bed layers. With the trickle bed reactor of the present invention, the backmixing rate of the catalysts in each bed layer can be reduced, and the backmixing phenomenon of the catalyst can be reduced.

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products