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Nanoparticles for inhibiting or removing heavy oil asphaltene deposition and preparation method thereof

A nanoparticle and asphaltene technology, which is applied in the preparation of test samples, chemical instruments and methods, composition of drilling holes, etc., to achieve the effect of efficient dissolution and improvement of thermal properties

Active Publication Date: 2021-01-29
NORTHEAST GASOLINEEUM UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The object of the present invention is to provide a kind of nano particle for suppressing or removing heavy oil asphaltene deposition and its preparation method, this method for suppressing or removing heavy oil asphaltene deposition is used to solve the problem of suppressing or removing heavy oil asphaltene deposition in the prior art Problems with asphaltene deposition during oil recovery

Method used

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  • Nanoparticles for inhibiting or removing heavy oil asphaltene deposition and preparation method thereof
  • Nanoparticles for inhibiting or removing heavy oil asphaltene deposition and preparation method thereof
  • Nanoparticles for inhibiting or removing heavy oil asphaltene deposition and preparation method thereof

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Effect test

Embodiment 1

[0028] A kind of nano particle that is used for suppressing or clearing heavy oil asphaltenes deposition, and described nano particle is nanometer Ni 2 O, Nano Fe 2 o 3 , Nano Fe 3 o 4 , Nanometer sodium iron silicate (NaFeSi 2 o 6 ), nano-MoO 3 、Co 3 o 4 , Nano WO 3 , Nano Al 2 o 3 , Nano ZrO 2 , Nano ZnO, Nano CuO, Nano TiO 2 , nano-SiO 2 1. One or more nanoparticle mixtures of amine-modified carpapite nanoparticles, modified fly ash nanoparticles, and modified apatite nanoparticles.

Embodiment 2

[0030] A kind of nano Ni 2 The preparation method of O particles is to prepare NiO nanoparticles in situ. Add 2.5ml of 4M nickel(II) nitrate aqueous solution to 50ml of oil matrix, and use a vortex mixer to vigorously mix the sample for 5 minutes. After mixing, no phase separation occurs. The oil matrix can be considered as a single phase, then the sample is introduced into the reactor unit, heat treated at 300°C for 12 hours in a sealed reactor unit, the control sample of the same composition only lacks the precursor salt, the same heat treatment is required to account for the heat treatment due to the Any resulting precipitation of asphaltenes; the particles were recovered by centrifuging the oil matrix at 5000 rpm for 20 minutes, the upper phase was decanted and collected and the lower phase was washed several times with toluene until a clear toluene phase was obtained, centrifugation of the control samples was observed not to result in any precipitation.

Embodiment 3

[0032] 10000 ppm hyperdispersed Fe in the oil phase was prepared by slowly adding and mixing a 2 ml volume of 4 M iron(III) nitrate nonahydrate aqueous solution into the 50 ml oil phase 2 o 3 Nanoparticles, other concentrations of nanoparticles were prepared in situ by keeping the volume of the water-soluble precursor at a fixed value, then reducing the concentration of nanoparticles, mixing the oil matrix vigorously using a vortex mixer until no phase separation could be observed, and the oil The matrix was considered as a single phase; the samples were transferred to a 100 ml Parr reactor unit (PARR Instrument Company, USA) and heat treated at 200 °C for 4 h after mixing in a sealed unit at 160 °C; in order to account for the pitch Mass deposition, a control sample with the same composition, only the precursor salts were removed, and the same heat treatment was performed; particle recovery from the oil phase was accomplished by centrifuging the oil phase at 5000 rpm for 10 m...

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Abstract

The invention belongs to the technical field of petrochemical industry, in particular to a nanoparticle for inhibiting or removing heavy oil asphaltene deposition and a preparation method thereof. The particle is nanometer Ni 2 O, nano Fe 2 O 3 , Nano CoFe 2 O 4、 Nano Fe 3 O 4 , Nano sodium ferric silicate (NaFeSi 2 O 6 ), nano-MoO 3 , Co 3 O 4 , Nano WO 3 , Nano Al 2 O 3 , Nano ZrO 2 , Nano ZnO, Nano CuO, Nano TiO 2 , Nano SiO 2 , One or several nanoparticle mixtures of amine-modified saponite nanoparticles, modified fly ash nanoparticles, and modified apatite nanoparticles; Ni 2 Preparation method of O particles: NiO nanoparticles were prepared in situ, 2.5 ml of 4M nickel nitrate aqueous solution was added to 50 ml of oil matrix, no phase separation occurred after mixing, and the oil matrix was single-phase, in a sealed reactor unit at 300 ° C Heat treatment for 12 hours.

Description

technical field [0001] The invention belongs to the technical field of petrochemical industry, and in particular relates to a nano particle for inhibiting or removing heavy oil asphaltene deposition and a preparation method thereof. Background technique [0002] Crude oil contains four different hydrocarbons, including alkanes, naphthenes, aromatics and asphaltenes. Paraffins, or alkanes are saturated hydrocarbons, that is, composed only of carbon and hydrogen atoms, having the general formula C n h 2n+2 . All bonds between carbon atoms are single bonds, there is no ring structure, forming a simple chain, making up about 30% of crude oil. Resins, or naphthenes, whose chemical structure are molecules with one or more ring carbon atoms, make up about 40 percent of crude oil. Aromatics, or aromatics, are hydrocarbons that form rings with alternating single and double bonds between carbon atoms, making up about 15% of crude oil. Asphaltene is mainly composed of carbon, hydr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/524G01N1/38C01G53/04C01G49/06C01G49/00C01B33/20
CPCC01B33/20C01G49/0018C01G49/06C01G53/04C09K8/524C09K2208/10G01N1/38
Inventor 赵法军田哲熙冯进来吴艳平张宇飞王大卫
Owner NORTHEAST GASOLINEEUM UNIV
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