Rectifying column for discoloring solvent oil

A rectification tower and solvent oil technology, applied in the field of rectification towers, can solve the problems of high cost of adsorbent and recovery cost, large loss of solvent oil, etc., and achieve the effects of saving adsorbent, improving efficiency, and simple structure

Inactive Publication Date: 2014-02-12
TIANJIN JINDONGFANG CHEM
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

At present, the commonly used adsorbent decolorization method is to add solvent oil and solid adsorbent to be decolorized into the container, and operate under certain conditions such as solid-liquid ratio, pressure, stirring, and residence ti

Method used

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  • Rectifying column for discoloring solvent oil

Examples

Experimental program
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Example Embodiment

[0013] Example 1

[0014] Such as figure 1 As shown, a rectification tower for decolorization of mineral spirits includes a rectification tower body 1, in which a first perforated plate 2, a second perforated plate 3, and a second perforated plate 3 are arranged from top to bottom in the rectifying tower body 1. Three porous plates 4, filled with solid adsorbent between the first porous plate 2 and the second porous plate 3 to form the adsorption section 5, between the second porous plate 3 and the third porous plate 4 Fill the packing to form the rectification section 6. The first porous plate 2, the second porous plate 3, and the third porous plate 4 are all circular plates with through holes on the top, and the pore diameter of the through holes is smaller than the diameter of the solid filler and smaller than the solid adsorbent. diameter of. The solid adsorbent is activated carbon granular adsorbent. The solid packing is structured packing.

[0015] Aromatic solvent oil f...

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PUM

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Abstract

The invention relates to a rectifying column for discoloring solvent oil. The rectifying column comprises a rectifying column body; a first perforation plate, a second perforation plate and a third perforation plate are arranged in the rectifying column body from top to bottom; a solid adsorbent is filled between the first perforation plate and the second perforation plate to form an adsorbing section; and packing is filled between the second perforation plate and the third perforation plate to form a rectifying section. The rectifying column is simple in structure and convenient to use; the adsorbing section and the rectifying section are combined in the rectifying column, by which the discoloring efficiency of the solvent oil can be greatly raised, a large number of adsorbents can be saved, and thus the cost can be effectively saved.

Description

technical field [0001] The invention relates to a rectification tower, in particular to a rectification tower used for solvent oil decolorization. Background technique [0002] Solvent oil is used in various fields of the national economy and is an important chemical substance. The chroma of solvent oil is an important indicator of the quality of solvent oil products, which directly affects the application range of solvent oil. If the chroma is too high, decolorization is often required deal with. At present, the commonly used adsorbent decolorization method is to add solvent oil and solid adsorbent to be decolorized into the container, and operate under certain conditions such as solid-liquid ratio, pressure, stirring, and residence time to decolorize the solvent oil. The disadvantage of this method is that it uses A large number of adsorbents need to be separated into solid and liquid, the cost of adsorbents and recovery costs are high, and the loss of solvent oil is larg...

Claims

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Application Information

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IPC IPC(8): B01D3/32
Inventor 王慧臣
Owner TIANJIN JINDONGFANG CHEM
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