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A kind of extraction tower and the method for solvent deasphalting

A technology of extraction tower and tower body, which is applied in the field of extraction tower and solvent deasphalting, which can solve the problems of solvent deasphalting and extraction, and achieve the effect of improving extraction efficiency, improving mass transfer efficiency, and avoiding clogging deposition

Active Publication Date: 2017-09-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Above-mentioned prior art can not carry out the extraction of solvent deasphalting effectively, therefore, need a kind of more effective extraction tower and method of solvent deasphalting

Method used

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  • A kind of extraction tower and the method for solvent deasphalting
  • A kind of extraction tower and the method for solvent deasphalting
  • A kind of extraction tower and the method for solvent deasphalting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] This example is used to illustrate the solvent deasphalting method provided by the present invention.

[0057] Such as figure 1 The extraction tower shown has a tower diameter of 300mm and a tower height of 2m. The height of the packing area is 800mm, the diameter of the support column 6 is 210mm, the diameter of the central cylinder 7 is 30mm, and the diameter of the isolation cylinder 4 is 120mm. The angles between the first annular baffle 18 and the second annular baffle 14 and the horizontal plane are both 45°. The distance between adjacent first annular baffles 18 and between adjacent second annular baffles 14 in the direction of the central axis of the tower body 2 is 25 mm. The size of the opening is 5mm, and the opening ratio is 50%. There are three vertical partitions 31 . There are three first heavy component fluid collection pipelines 10, and three second heavy component fluid collection pipelines 9.

[0058] The feed rate of the residual oil is 2kg / h, a...

Embodiment 2

[0061] This example is used to illustrate the solvent deasphalting method provided by the present invention.

[0062] Such as figure 2 The extraction tower shown has a tower diameter of 300mm and a tower height of 2m. The height of the packing area is 1000mm, the diameter of the support column 6 is 240mm, the diameter of the central cylinder 7 is 60mm, and the diameter of the isolation cylinder 4 is 170mm. The included angles between the first annular baffle 14 and the second annular baffle 18 and the horizontal plane are both 55°. The distance between adjacent first annular baffles 18 and between adjacent second annular baffles 14 in the direction of the central axis of the tower body 2 is 30 mm. The size of the opening is 5mm, and the opening ratio is 30%. There are four vertical partitions 31 . There are four first heavy component fluid collection pipelines 10 and four second heavy component fluid collection pipelines 9 .

[0063] The feed rate of the residual oil is ...

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Abstract

The invention discloses an extraction tower and a solvent deasphalting method. The packing area provided in the extraction tower includes a plurality of annular baffles placed parallel to each other, which can effectively improve the extraction effect.

Description

technical field [0001] The invention relates to an extraction tower and a method for solvent deasphalting, in particular to an extraction tower for solvent removal of asphalt in heavy oil, and a method for extracting asphalt from heavy oil on the extraction tower. Background technique [0002] The raw material of solvent deasphalting is mostly residual oil with high viscosity, and the extraction tower with external energy input is mostly used. The propane deasphalting extraction towers in most domestic refineries use hydraulically driven rotary towers. The excessive agitation caused by the vortex generated by the high-speed liquid flow of the hydraulically driven turbine will make the droplets of the dispersed phase too small, resulting in serious back mixing, which is not conducive to mass transfer and separation. The deasphalting units of most refineries reflect that the rotation of the turntable has no obvious influence on the yield of deasphalted oil. Therefore, many pl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G21/00C10G21/14
Inventor 朱丙田侯栓弟武雪峰毛俊义王子军王少兵王翠红
Owner CHINA PETROLEUM & CHEM CORP