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Device and method for continuous removal of suspended solids in crude oil

A suspension and removal technology, applied in the field of petrochemical industry, can solve the problems of incomplete removal, easy blockage of devices, and influence on desalination effect, so as to prevent the decline of adsorption efficiency or even blockage by suspended matter, and ensure the effect of long-term operation

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] In view of the lack of equipment in the prior art that can effectively remove suspended solids in oil products, the device is easily blocked during the removal process, and the removal is not complete, which greatly affects the subsequent desalination effect. The present invention provides a continuous removal The device and method for suspended solids in crude oil have a good effect of removing suspended solids and high treatment efficiency

Method used

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  • Device and method for continuous removal of suspended solids in crude oil
  • Device and method for continuous removal of suspended solids in crude oil

Examples

Experimental program
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Effect test

Embodiment 1

[0035] A device for continuously removing suspended matter in crude oil, such as figure 1 As shown, it includes air flotation removal system I100 and air flotation removal system II200. Air flotation removal system I100 includes a first-stage air flotation removal section 2A and a second-stage air flotation removal section 4A arranged in sequence from bottom to top. The primary air flotation removal section 2A is filled with a primary air flotation packing layer 3A, and the packing is macroporous honeycomb packing with a density of 550kg / m 3 , with a porosity of 65% to 70%; the secondary air flotation removal section 4A is filled with a secondary air flotation filler layer 5A, and the filler is a macroporous honeycomb filler with a density of 570kg / m 3 , with a porosity of 25% to 30%; the above fillers are all polypropylene fillers; the bottom of the primary air flotation removal section 2A is provided with a microbubble generator 1A, and the inlet of the microbubble generator...

Embodiment 2

[0039] The device for continuous removal of suspended solids in crude oil, except that the porosity of the primary air flotation packing layers 3A and 3B is 75% to 80%, and the porosity of the secondary air flotation packing layers 5A and 5B is 30% to 35%. Other structures and arrangements are the same as in Embodiment 1.

Embodiment 3

[0041] The device for removing suspended solids in oil products, except that the primary air flotation packing layers 3A and 3B are macroporous wire mesh packing with a porosity of 65% to 70%, and the porosity of the secondary air flotation packing layers 5A and 5B is Except 20%~25%, other structure and arrangement mode are the same as embodiment 1.

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Abstract

A device and method for continuously removing suspended matter in crude oil, the device includes two sets of air flotation removal systems, each set of air flotation removal systems includes at least two stages of air flotation removal sections arranged in sequence from bottom to top, the upper layer The porosity of the filler in the air flotation removal section is always smaller than the porosity of the filler in the air flotation removal section below it. The bottom of the primary air flotation removal section is equipped with a microbubble generator to remove suspended solids in crude oil When using low-volume air intake, to desorb the suspended solids of fillers, use high-volume air intake. The present invention effectively removes the suspended matter in the raw material, and at the same time realizes the cleaning and purification of the filler and the desorption of the suspended matter on-line, which can prevent the problem that the adsorption efficiency of the filler decreases with the increase of the suspended matter on the surface or even be blocked by the suspended matter, and ensures that the device long-term efficient operation.

Description

technical field [0001] The invention belongs to the technical field of petrochemical industry, in particular to a device for continuously removing suspended matter in crude oil and a method for removing suspended matter by using it. Background technique [0002] Crude oil contains water and salts such as sodium chloride, calcium chloride, and magnesium chloride. In order not to affect the processing of crude oil, the first step before crude oil enters the factory for processing is desalination and dehydration, so that the water content is 0.1% to 0.2%, and the salt content <5mg / L, and for refineries with residual oil hydrogenation or heavy oil cracking, the requirements are more stringent, and the salt content in raw oil is required to be <3mg / L. Many crude oils contain a certain amount of colloidal suspended matter, which brings more problems to the dehydration and desalination process of crude oil and subsequent processing equipment. , easy to block the flow-through...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G53/02
CPCC10G53/02
Inventor 阮宗琳杨秀娜何佳李经伟金平
Owner CHINA PETROLEUM & CHEM CORP
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