Method and device for pretreating hydrogenation raw material by utilizing electric separation technology

A technology of electric separation and raw materials, which is applied in the fields of hydrotreating process, hydrocarbon oil treatment, and electric/magnetic refining, etc., which can solve the problems of hydrogenation raw material pollution and other problems

Active Publication Date: 2021-01-05
武汉兰兆科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The removal rate of metal particles in the hydrogenation raw material treated by the present invention is higher than 95%, the removal rate of mechanical impurities is higher than 99%, and the hydrogenation raw material after treatment can meet the...

Method used

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  • Method and device for pretreating hydrogenation raw material by utilizing electric separation technology
  • Method and device for pretreating hydrogenation raw material by utilizing electric separation technology
  • Method and device for pretreating hydrogenation raw material by utilizing electric separation technology

Examples

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Effect test

Embodiment 1

[0081] like figure 1 As shown, it is the electrical separation system in the device of the present invention, which includes a central high-voltage electrode 110, a high-voltage electrode insulation set 111, a residual oil outlet 112, a residual oil outlet 113, and a feed inlet 114. Feed inlet 2 115, conical feeder 116, separator container 117, packing bead bed 118, refined oil outlet 1 119, refined oil outlet 2 120, upper flange 121, upper flange cover 122, cleaning oil outlet 123 , the feed inlet three 124, wherein the upper flange 121, the separator container 117, and the conical feeder 116 form a pressure vessel, and the central high-voltage electrode 110 is arranged at the very center of the high-voltage electrode insulating set 111, and runs through the entire packing bead The bed 118, the height of the packed bead bed 118 is the same as the height of the central high voltage electrode 110. The central high-voltage electrode 110 is connected to an external high-voltage ...

Embodiment 2

[0087] The device shown in Example 1 was used to process the hydrogenation raw material A, wherein the properties of the hydrogenation raw material A are shown in Table 1.

[0088] The electrical separation process is as follows: store the hydrogenation raw material A in the hydrogenation raw material storage tank 1, keep the temperature at 120°C, transport it to the refined oil heat exchanger 3 through the feed pump 2 for heat exchange to 210°C, and then enter the preheater 4, further heated to 280°C. Part of the preheated hydrogenation raw material A is sent to the backwash oil buffer tank 6, and the temperature is maintained at 270°C; the other part is sent to the hydrogenation raw material buffer tank 5, and the temperature is maintained at 270°C. The hydrogenation raw material A in the hydrogenation raw material buffer tank 5 enters the electric separation system 7, and the flow rate of the hydrogenation raw material A entering the electric separation system 7 is 35m 3 / ...

Embodiment 3

[0102] The device shown in Example 1 was used to process the hydrogenation raw material, and the hydrogenation raw material A in Example 2 was used, and the electrical separation process was the same as in Example 2.

[0103] The packing ratio, feeding method and backwashing method in the separator are as follows:

[0104]In the present embodiment condition (1), the filler used in the filler bead bed 122 is glass microspheres produced by a certain glass bead product factory in China, 80% of which are in the diameter range of 0.8-1.5mm, and 20% are in the diameter range of 1.5-1.5 mm. Within 2.5 mm, the hydrogenation raw material A feed enters the separator 117 from the feed inlet 114, and the refined oil after electrical separation flows out of the separator 117 from the refined oil outlet 120, while the residue oil with a relatively high content of asphaltene is discharged from the residue The oil outlet one 112 flows out of the separator 117 and is sent to the residue storag...

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Abstract

The invention provides a method for pretreating a hydrogenation raw material by using an electric separation technology, and the method solves the pollution problem of metal particles and mechanical impurities in the hydrogenation raw material through an efficient electric separation method. According to the method, the process bottleneck of a traditional electrostatic separation method is brokenthrough, the method can be operated under a high-temperature condition, colloid and asphaltene in the hydrogenation raw materials are selectively removed, and long-period, stable, continuous and efficient production operation is achieved. According to the refined oil product obtained by the invention, the metal particle removal rate is higher than 95%, the mechanical impurity removal rate is higher than 99%, the colloid and asphaltene content is low, and meanwhile, the full utilization of the backwash oil and the optimal use of peripheral system supporting facilities are realized; and the defects of redundant cleaning operation, easy blockage of a filter screen, low treatment efficiency, frequent switching, high device maintenance cost and the like of the traditional filter are overcome.

Description

technical field [0001] The invention relates to a method for pretreating hydrogenation raw materials, in particular to a method and device for pretreating hydrogenation raw materials by using electric separation technology. Background technique [0002] In the modern oil refining industry, hydrogenation technology includes two types of technologies: hydrotreating and hydrocracking. Hydrotreating refers to the hydrogenation technology in which ≤10% of the raw oil molecules become smaller during the hydrogenation reaction process, including the traditional hydrofining and hydrotreating technologies. Hydrocracking refers to the hydrogenation technology in which more than 10% of the raw oil molecules become smaller during the hydrogenation reaction process, including traditional high-pressure hydrocracking (reaction pressure ≥ 14.5MPa) and moderate and medium-pressure hydrocracking (reaction pressure ≤ 12.0MPa) technology. In China, the tendency of crude oil to become heavier ...

Claims

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Application Information

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IPC IPC(8): C10G32/02C10G53/00C10G67/00
CPCC10G32/02C10G53/00C10G67/00C10G2300/201C10G2300/205C10G2300/206
Inventor 许莉陈骜白鹰
Owner 武汉兰兆科技有限公司
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