Assistant for removing unknown black suspended solid particles in crude oil and jet nozzle device for assistant filling

A solid particle and nozzle device technology, which is applied in the fields of refined hydrocarbon oil, petroleum industry, transportation and packaging, etc. It can solve the problems of high current, scaling of trays, dehydration and blackening of electric desalination devices, etc., and achieve a scientific and reasonable ratio Effect

Pending Publication Date: 2018-03-16
天津大远科技有限公司
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AI-Extracted Technical Summary

Problems solved by technology

[0003] (1) Crude oil contains emulsified non-oily substances. The density of the emulsion is between that of crude oil and water, making electrical desalination and removal in storage and transportation tank areas particularly difficult. In particular, the emulsion is likely to cause high current in the electrical desalination device , the electric desalination trip occurs frequently, which seriously affects the long-term operation of the electric desalination
[0004] (2) The dehydration of the electric desalination device often turns black, which brings great difficulties to the treatment of oily sewage, and has a serious impact on the sewage treatment system of the whole plant, and there is a potential risk of excessive sewage discharge
[0005] (3) Black suspended solids are carried in the crude oil, which causes the sulfur-containing sewage at the top of the atmospheric tower to turn black, gelatinous matter accumulates and blocks the tray of the atmospheric tower in the atmospheric device, the tray is fouled, and the acidic water vapor is lifted to the sulfur recovery device Abnormal fluctuations often occur, and there are serious difficulties in the operation of the device, which seriously restricts the realization of the three-year major maintenance goal
[0006] (4) The black suspended solids are closely related to the dirty oil, resulting in abnormal operation of the waste oil recovery and refining system
[0007] With the development of oilfields in the middle and later stages, the development of various chemical flooding agents (pol...
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Method used

In the crude oil provided by the invention, unidentified black suspended matter solid particle removes in the component of auxiliary agent, ethylene-vinyl acetate polymer and high flash point solvent naphtha reach the effect of dispersant, stabilize auxiliary agent product state, simultaneously auxiliary agent Adding to crude oil can reduce the viscosity of crude oil, so that additives can be better dispersed into crude oil. Propylene glycol block polyether can break the black solid particles (containing sediment, impurities and a large number of colloidal ferrous sulfide particles) in the oil-water intermediate transition layer, and re-coordinate, and gather fine ferrous sulfide particles into large particles or Group-like settlement, other sediment and impurities are also deposited, greatly reducing the content of black solid particles in crude oil and water. After the gel breaking process is completed, the addition of polyethylene glycol in the auxiliary component can be used to break the emulsion, reduce t...
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Abstract

The invention discloses an assistant for removing unknown black suspended solid particles in crude oil and a jet nozzle device for assistant filling. The assistant is prepared from, by weight, 30-35 parts of propylene glycol blocked polyether, 1-3 parts of glutaraldehyde, 7-10 parts of alpha-olefin sulfonate, 12-18 parts of polyethylene glycol, 12-18 parts of ethylene-vinyl acetate copolymer and 25-30 parts of miscella. The assistant can eliminate a transition layer between oil and water, stabilize electro-desalting operation, purify the quality of discharged water and make lighter oil-solubleblack suspended particles break away from an emulsion layer and enter crude oil. Part of water-soluble inorganic salt is dissolved in water after gel breaking, the oil content of desalting water is smaller than 100 ppm, and COD is smaller than 1200 ppm. Bigger insoluble black suspended particles are gathered to become into bigger particles and deposit at the bottom, and the particles are discharged together with water. The assistant can be uniformly sprayed into flowing crude oil by utilizing a special assistant filling device.

Application Domain

Flow mixersTransportation and packaging +3

Technology Topic

SolventChemistry +22

Image

  • Assistant for removing unknown black suspended solid particles in crude oil and jet nozzle device for assistant filling

Examples

  • Experimental program(4)

Example Embodiment

[0039] Example 1
[0040] Unidentified black suspended solid particles removal aid in crude oil, including the following raw materials: propylene glycol block polyether L6435g, glutaraldehyde 1g, a-olefin sulfonate 8g, polyethylene glycol 600 15g, ethylene-vinyl acetate copolymer ( The content of vinyl acetate is 32%, the molecular weight is 3100, the degree of branching is 7) 15g, and solvent oil (flash point 120°C) 26g.

Example Embodiment

[0041] Example 2
[0042] Unidentified black suspended solid particles removal aid in crude oil, including the following raw materials: propylene glycol block polyether F6835g, glutaraldehyde 1g, a-olefin sulfonate 8g, polyethylene glycol 600 15g, ethylene-vinyl acetate copolymer ( Vinyl acetate content is 35%, its molecular weight is 3200, branching degree 7) 15g, solvent naphtha (flash point 120°C) 26g, and EDTA sodium salt 6g.

Example Embodiment

[0043] Example 3
[0044] Unidentified black suspended solid particles removal aid in crude oil, including the following raw materials: propylene glycol block polyether F6830g, glutaraldehyde 3g, a-olefin sulfonate 10g, polyethylene glycol 500 12g, ethylene-vinyl acetate copolymer ( The content of vinyl acetate is 40%, the molecular weight is 3200, the degree of branching is 7) 12g, and the solvent oil (flash point 130°C) 30g.

PUM

PropertyMeasurementUnit
Flash point120.0°C
Flash point130.0°C

Description & Claims & Application Information

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