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Device and method for coupling crude oil desuspension and oil-water separation

A technology for oil-water separation and suspended solids, which is applied in the treatment of hydrocarbon oil and petroleum industry, etc., can solve the problems of reduced processing efficiency, achieve efficiency improvement, high-efficiency removal, and prevent suspended solids from clogging or even blocking.

Active Publication Date: 2021-07-09
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problem in the prior art that the processes of crude oil desuspension and oil-water separation affect each other, resulting in a certain degree of reduction in the efficiency of individual treatment, the present invention provides a device and method for coupling crude oil desuspension and oil-water separation, which not only effectively removes In addition to removing suspended solids in crude oil, it also realizes deep separation of oil and water at the same time, improving the processing efficiency

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  • Device and method for coupling crude oil desuspension and oil-water separation
  • Device and method for coupling crude oil desuspension and oil-water separation

Examples

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Effect test

Embodiment 1

[0039] A device coupled with crude oil desuspension and oil-water separation, such as figure 1 As shown, it includes a light phase air flotation removal system 200, an oil-water separation system 100 and a heavy phase air flotation removal system 300 arranged in sequence from top to bottom;

[0040] The oil-water separation system 100 includes an oil-water separation packing layer 101, which is filled with a coalescence separation packing, and its side is provided with a crude oil feed port 102 to be treated; the coalescence separation packing is made of polypropylene and polypropylene fibers at a ratio of 1:2 Proportionally mixed and woven into 8-type filler monomers with dense concave-convex structure, and then assembled into rod-shaped fillers with a length of 5 mm, filled in the oil-water separation filler layer 101 in a free bulk and non-fixed state. The light-phase air flotation removal system 200 includes two-stage light-phase air flotation removal sections, the lower l...

Embodiment 2

[0043] Crude oil desuspension and oil-water separation coupling device, except for the first-stage light-phase air-flotation packing layer 202 and the first-stage heavy-phase air-flotation packing layer 302, the porosity of the packing is 60% to 65%, and the second-stage light-phase air-flotation packing The porosity of the filler in the layer 204 and the secondary heavy-phase air-floating filler layer 304 is 25% to 30%, and other structures and arrangements are the same as in Embodiment 1.

Embodiment 3

[0045] Crude oil desuspension and oil-water separation coupling device, except for the porosity of the first-stage light-phase air-floatable packing layer 202 and the first-stage heavy-phase air-floatable packing layer 302, the porosity of the packing is 65% to 70%, and the second-stage light-phase air-floatable packing layer The porosity of the filler in the layer 204 and the secondary heavy-phase air-floating filler layer 304 is 20% to 25%, and other structures and arrangements are the same as in Embodiment 1.

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Abstract

Crude oil desuspension and oil-water separation coupling device, the device includes a light-phase air flotation removal system, an oil-water separation system and a heavy-phase air flotation removal system arranged in sequence from top to bottom; the oil-water separation system is filled with Coalescing and separation packing, the light phase air flotation removal system includes at least two light phase air flotation removal sections, both of which are filled with air flotation packing, and a bubble generator is arranged at the bottom; the heavy phase air flotation removal system has the same structure. The device of the invention can realize the removal of suspended solids and oil-water separation of crude oil. The removal of suspended solids in crude oil and the deep separation of oil and water are coupled into an integral treatment device, so that the processes of removing suspended solids and oil-water separation can be carried out simultaneously and mutually promoted, which can efficiently remove suspended solids and achieve deep separation of oil and water, and also realize Desalination, and can prevent the air flotation packing from being blocked or even blocked by suspended solids, ensuring long-term efficient operation.

Description

technical field [0001] The invention belongs to the technical field of petrochemical industry, and specifically relates to a device coupled with crude oil desalination, suspended solids and oil-water separation, and a method for removing suspended solids and separating oil and water using the device. Background technique [0002] In recent years, with the trend of crude oil becoming inferior and heavy, more crude oil contains a certain amount of suspended solids, which brings more problems to crude oil dehydration and desalination, oil-water separation and subsequent processing equipment. The main manifestations are as follows: ( 1) Colloidal suspended matter in crude oil is suspended in flakes in oil products, especially raw oil, which is easy to block flow-through equipment and pipelines, cause scaling of heating equipment, increase system pressure drop, etc.; (2) These colloidal suspensions The substance is not easy to be polarized in the traditional electric desalination...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G53/00
CPCC10G53/00
Inventor 阮宗琳杨秀娜何佳李经伟金平
Owner CHINA PETROLEUM & CHEM CORP
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