CN102311773A - Method for improving crude oil distillation yield by utilizing ultrasonic wave - Google Patents
Method for improving crude oil distillation yield by utilizing ultrasonic wave Download PDFInfo
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- CN102311773A CN102311773A CN2010102136309A CN201010213630A CN102311773A CN 102311773 A CN102311773 A CN 102311773A CN 2010102136309 A CN2010102136309 A CN 2010102136309A CN 201010213630 A CN201010213630 A CN 201010213630A CN 102311773 A CN102311773 A CN 102311773A
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- organic hydrogen
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Abstract
The invention relates to a method for improving crude oil distillation yield by utilizing ultrasonic wave. The method comprises the following steps of: based on the mass of the crude oil as reference, adding 0.5-10% of organic hydrogen supplier into crude oil with water mass fraction of being less than or equal to 1%, and processing the crude oil with ultrasonic wave, wherein the viscosity of the crude oil added with the organic hydrogen supplier at a processing temperature is less than or equal to 100mm<2>/s, frequency of the ultrasonic wave is 20-50KHz, and amplitude of the ultrasonic wave is 25-112mu m; and carrying out reduced-pressure distillation on the crude oil processed by the ultrasonic wave.
Description
Technical field
The present invention relates to a kind of method of utilizing UW to improve the crude distillation yield, specifically, is to utilize UW to improve in the crude distillation method less than 500 ℃ of cut yields.
Background technology
The yield of light oil that petroleum resources shortage and crude oil heaviness, poor qualityization cause descends; Become " bottleneck " of the survival and development of restriction China's oil processing enterprise; Research, overseas crude oil be the deep processing technology of heavy crude particularly; Increase lightweight oil output, become one of emphasis of domestic and international oil Refining Technologies exploitation.Technology through adding additive raising crude oil atmospheric vacuum distillation yield is exactly wherein a kind of effective way, about the research of this respect, bibliographical information is arranged all both at home and abroad.The catalytic cracking recycle oil of aromatic hydrocarbons is rich in adding in the crude oil atmospheric vacuum distillation device, the technology of furfural extract oil has realized industrial applications; And the additive of other type; Also fail to realize industrial applications like surfactant, low mass molecule alcohol and micromolecular compound etc., the reason that hinders its industrial applications has: one, the affiliation that adds of additive exerts an influence to following process; Two, its industrial applications of factor restriction such as the source of additive and tooling cost.
Domesticly do not see that also the report that utilizes the UW effect to improve the crude distillation yield is arranged; Mainly be that external research is more; A kind of method is that crude oil, long residuum, vacuum residuum, fuel wet goods are mixed; Use ultrasonication then, this method is raw materials used to be the mixture of some distillates, is difficult to satisfy the demand of crude oil atmospheric vacuum distillation; Another kind method is that crude oil or distillate and the aqueous solution are processed milk sap, uses ultrasonication then, and this method need be carried out emulsification with raw material; Increase operation sequence, increased production cost, and the water cut of milk sap is higher; Under action of ultrasonic waves; Form height emulsive state, breakdown of emulsion is difficulty very, and this has also limited hyperacoustic application.
Summary of the invention
The invention provides a kind of method of utilizing UW to improve the crude distillation yield, this method can improve in the crude oil atmospheric vacuum distillation yield less than 500 ℃ of cuts.
Method of the present invention comprises:
(3) quality with crude oil is a benchmark, in the crude oil of quality mark≤1%, adds organic hydrogen supply agent of 0.5%～10%, between 20～150 ℃, uses ultrasonication crude oil, adds the viscosity≤100mm of crude oil under treatment temp of organic hydrogen supply agent
2/ s, frequency of ultrasonic is 20kHz～50kHz, amplitude is 25 μ m～112 μ m;
(4) crude oil after the ultrasonication is carried out atmospheric and vacuum distillation.
The time of ultrasonication is preferably 1～120min, more preferably 10～60min.
Quality with crude oil is a benchmark, and the add-on of organic hydrogen supply agent is preferably 1～7%.
Described organic hydrogen supply agent can be one or more in formic acid, manthanoate and the methane amide.
Described organic hydrogen supply agent can be the hydrogenation condensed-nuclei aromatics, like in naphthane, perhydronaphthalene, dihydroanthracene and the dihydro phenanthrene one or more.
In the prior art, need raw material be carried out emulsification and with after other petroleum products mixes, could use ultrasonication.The present invention utilizes UW directly to handle the crude oil of water cut≤1%, and adds the hydrogen supply agent of appropriate amount, makes that the distillation yield less than 500 ℃ of cuts obviously improves in the crude oil, has simplified schedule of operation, has reduced production cost.The adding of hydrogen supply agent not only can be played and improve viscosity of crude; The particularly effect of viscosity of thickened oil; And can reduce the absorption of bituminous matter and colloid to small molecule hydrocarbon, and help the fracture of C-S key in the viscous crude, reaction is carried out to the direction of hydrogenating desulfurization; Reduce bitum molecular weight, improve in the crude oil distillation yield less than 500 ℃ of cuts.The frequency of ultrasonic that the present invention adopts is between 20kHz～50kHz; Amplitude is between 25 μ m～112 μ m; Making that UW can provide enough cavatitions under this operational condition, is small molecules with part macromolecular cleavage in the crude oil, improves in the crude oil distillation yield less than 500 ℃ of cuts.
Embodiment
Among the embodiment; Ultrasonoscope is VCX750 type supersonic cell crusher (frequency 20kHz, peak power output 750W, the probe base diameter 13mm that U.S. SONICS & MATERIALS company produces; Peak swing 124 μ m; Can handle sample 10～250ml, amplitude is adjustable and have the amplitude automatic compensation function), ultrasonic intensity changes through regulating the amplitude size to be realized.
Among the embodiment, adopt the method for gas phase simulation distil (ASTM D5307) to carry out the crude distillation analysis.
Embodiment 1
Getting 150mL crude oil depresses at 100 ℃ and 1 standard atmosphere and carries out ultrasonication.Oil property is seen table 1.Hydrogen supply agent is a formic acid, and dosage is 3% of a crude quality.The UW parameter is: ultrasonic frequency is 20kHz, and ultrasonic amplitude is 62 μ m, and UW action time is 30min.Test-results is seen table 2.
Table 1
| Project | Crude oil |
| Density (20 ℃), gcm -3Viscosity (50 ℃), mm 2·s -1Condensation point, ℃ carbon residue, % colloid, w% bituminous matter, w% w (wax), w% moisture, w% | 0.9224 118.90 -41.00 5.67 16.70 0.10 4.20 0.68 |
Table 2
Can know that by table 2 data ultrasonication can improve 5.9 percentage points of crude oil＜350 ℃ distillate yields later, improves 2.5 percentage points of 350 ℃～500 ℃ distillate yields, add up to and improve 8.4 percentage points of＜500 ℃ of distillate yields.
Embodiment 2
Getting 150mL crude oil depresses at room temperature and 1 standard atmosphere and carries out ultrasonication.Oil property is seen table 3.Hydrogen supply agent is a naphthane, and dosage is 2% of a former oil mass.The UW parameter is: ultrasonic frequency is 20kHz, and ultrasonic amplitude is 70 μ m, and UW action time is 45min.Test-results is seen table 4.
Table 3
| Project | Crude oil |
| Density (20 ℃), gcm -3Viscosity (50 ℃), mm 2·s -1Condensation point, ℃ carbon residue, % colloid, w% bituminous matter, w% w (wax), w% moisture, w% | 0.8967 28.30 23.00 4.88 11.5＜0.1 13.5 vestiges |
Table 4
Can know that by table 4 data ultrasonication improves 4.9 percentage points of crude oil＜350 ℃ distillate yields later on, improve 4.3 percentage points of 350 ℃～500 ℃ distillate yields, add up to and improve 9.2 percentage points of＜500 ℃ of distillate yields.
Comparative Examples
The simple ultrasonication crude oil that uses, treatment temp is 100 ℃, oil property is seen table 1.The UW parameter is: ultrasonic frequency is 20kHz, and ultrasonic amplitude is 62 μ m, and UW action time is 30min.Test-results is seen table 5.
Table 5
Can know by table 5 data, use ultrasonication merely after, improve 0.5 percentage point of crude oil＜350 ℃ distillate yield, improves 1.1 percentage points of 350 ℃～500 ℃ distillate yields, add up to 1.6 percentage points of＜500 ℃ of distillate yields of raising.
Claims (7)
1. method of utilizing UW to improve the crude distillation yield comprises:
(1) quality with crude oil is a benchmark; In the crude oil of quality mark≤1%, add organic hydrogen supply agent of 0.5%～10%; Between 20～150 ℃, use ultrasonication crude oil, add the viscosity≤100mm2/s of crude oil under treatment temp of organic hydrogen supply agent; Frequency of ultrasonic is 20kHz～50kHz, and amplitude is 25 μ m～112 μ m;
(2) crude oil after the ultrasonication is carried out atmospheric and vacuum distillation.
2. according to the described method of claim 1, it is characterized in that the time of ultrasonication is 1～120min.
3. according to the described method of claim 2, it is characterized in that the time of ultrasonication is 10～60min.
4. according to the described method of claim 1, it is characterized in that, is benchmark with the quality of crude oil, and the add-on of organic hydrogen supply agent is 1～7%.
5. according to the described method of claim 1, it is characterized in that described organic hydrogen supply agent is one or more in formic acid, manthanoate and the methane amide.
6. according to the described method of claim 1, it is characterized in that described organic hydrogen supply agent is the hydrogenation condensed-nuclei aromatics.
7. according to the described method of claim 6, it is characterized in that described organic hydrogen supply agent is one or more in naphthane, perhydronaphthalene, dihydroanthracene and the dihydro phenanthrene.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103805229A (en) * | 2012-11-15 | 2014-05-21 | 中国石油大学(华东) | Raw material pretreatment method for improving light performance of residual oil |
| CN104449816A (en) * | 2014-12-04 | 2015-03-25 | 辽宁石油化工大学 | Method for improving residual oil component distribution by using hydrogen donor under action of ultrasonic waves |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5891829A (en) * | 1997-08-12 | 1999-04-06 | Intevep, S.A. | Process for the downhole upgrading of extra heavy crude oil |
| CN101402878A (en) * | 2008-11-14 | 2009-04-08 | 华东理工大学 | Method for removing nickel vanadium in crude oil with microwave chemical method |
| CN101565633A (en) * | 2003-08-20 | 2009-10-28 | 马克·卡伦 | Treatment of crude oil fractions, fossil fuels, and products thereof |
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2010
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5891829A (en) * | 1997-08-12 | 1999-04-06 | Intevep, S.A. | Process for the downhole upgrading of extra heavy crude oil |
| CN101565633A (en) * | 2003-08-20 | 2009-10-28 | 马克·卡伦 | Treatment of crude oil fractions, fossil fuels, and products thereof |
| CN101402878A (en) * | 2008-11-14 | 2009-04-08 | 华东理工大学 | Method for removing nickel vanadium in crude oil with microwave chemical method |
Non-Patent Citations (1)
| Title |
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| 武继辉等: "超声波对原油粘度影响研究", 《胜利油田职工大学学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103805229A (en) * | 2012-11-15 | 2014-05-21 | 中国石油大学(华东) | Raw material pretreatment method for improving light performance of residual oil |
| CN104449816A (en) * | 2014-12-04 | 2015-03-25 | 辽宁石油化工大学 | Method for improving residual oil component distribution by using hydrogen donor under action of ultrasonic waves |
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| CN102311773B (en) | 2013-12-25 |
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