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A kind of inferior sulfolane regeneration equipment, system and method

A technology of regeneration equipment and regeneration system, applied in chemical instruments and methods, ion exchange regeneration, ion exchange column/bed method, etc., can solve the problems of darkening of color, pH value drop of sulfolane, degradation and deterioration, etc., to avoid deformation , to avoid the effect of fluid back-mixing

Active Publication Date: 2021-08-06
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in industrial applications, sulfolane will degrade and deteriorate. The acidic substances produced by the degradation and the chlorine in the aromatics extraction raw material are enriched in the sulfolane solvent. The acidic substances and chlorine produced by the inferior quality of sulfolane will lead to the pH value of sulfolane keeps falling, getting darker

Method used

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  • A kind of inferior sulfolane regeneration equipment, system and method
  • A kind of inferior sulfolane regeneration equipment, system and method
  • A kind of inferior sulfolane regeneration equipment, system and method

Examples

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Effect test

Embodiment 1

[0049] Use as attached figure 1 Poor quality sulfolane regeneration equipment shown. The structure of the foot assembly is as attached image 3 shown. Among them, the cylinder height of inferior sulfolane regeneration equipment is 6m, the inner diameter is 0.5m, and the distance between the lower grille and the bottom of the equipment is 1.0m. The height of the ion exchange resin bed is 3.5m, and the leg assembly is composed of 56 sets of vertical pipes and needle-shaped branch pipes connected to the bottom of the vertical pipes, each vertical pipe and 3 needle-shaped branch pipes. Among them, the diameter of the vertical pipe is 25mm and the length is 150mm; the diameter of the needle-shaped branch pipe is 10mm and the length is 40mm; the angle between the axis of the needle-shaped branch pipe and the axis of the vertical pipe is 45°; the needle-shaped branch pipe is evenly distributed in the bottom cross-section of the vertical pipe on the circumference of . The height f...

Embodiment 2

[0053] Use as attached figure 1 Poor quality sulfolane regeneration equipment shown. The structure of the foot assembly is as attached image 3 shown. The cylinder height of inferior sulfolane regeneration equipment is 6m, the inner diameter is 0.5m, and the distance between the lower grille and the bottom of the equipment is 0.6m. The height of the ion exchange resin bed is 4.0m, and the leg assembly is composed of 28 sets of vertical pipes and needle-shaped branch pipes connected to the bottom of the vertical pipes, each vertical pipe and 4 needle-shaped branch pipes. Among them, the diameter of the vertical pipe is 30mm, and the length is 100mm; the diameter of the needle-shaped branch pipe is 15mm, and the length is 50mm; the angle between the axis of the needle-shaped branch pipe and the axis of the vertical pipe is 60°; the needle-shaped branch pipe is evenly distributed in the bottom cross-section of the vertical pipe on the circumference of . The height from the bo...

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Abstract

A device, system and method for regenerating inferior sulfolane. The inferior sulfolane regeneration device is a vertical cylinder structure, and an upper distributor (7) and an upper grille (5) are arranged in the cylinder (1) from top to bottom. , ion exchange resin bed (4), lower grille (6) and lower distributor (8); wherein said upper distributor (7) is communicated with inlet pipe (2), and described lower distributor (8 ) communicates with the outlet pipe (3), the top of the reactor cylinder is provided with an exhaust port (9), the ion exchange resin bed (4) is arranged on the lower grille (6), and the upper partition A foot assembly (10) is provided at the bottom of the grid (5). The deteriorated sulfolane regeneration equipment and method provided by the present invention remove acidic substances in inferior sulfolane through anion exchange resin, so as to restore the inferior sulfolane to a fresh state. It can prevent the upper grille and upper distributor in the equipment from being blocked and deformed, and prolong the running time of the device.

Description

technical field [0001] The present invention relates to a kind of inferior sulfolane regeneration equipment, system and method, more specifically, relate to a kind of liquid-solid contact equipment and method suitable for removing acidic substance in inferior sulfolane through anion exchange resin. Background technique [0002] Sulfolane is an important aromatic hydrocarbon extractant, which is widely used in aromatic hydrocarbon extraction devices. However, in industrial applications, sulfolane will degrade and deteriorate. The acidic substances produced by the degradation and the chlorine in the aromatics extraction raw material are enriched in the sulfolane solvent. The acidic substances and chlorine produced by the inferior quality of sulfolane will lead to the pH value of sulfolane As it goes down, the color becomes darker. The production of acidic substances and chlorine can also cause serious problems of equipment corrosion, so the regeneration of inferior sulfolane ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D333/48B01J41/07B01J41/14B01J47/02B01J49/07B01J49/60
CPCB01J41/14B01J47/02B01J41/07B01J49/07B01J49/60C07D333/48
Inventor 唐晓津侯栓弟刘铮杨玉蕊胡立峰朱振兴毛俊义许育鹏褚小立
Owner CHINA PETROLEUM & CHEM CORP
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