CN100348695C - Method for promoting light oil yield of atmospheric and vacuum distillation of petroleum oil - Google Patents
Method for promoting light oil yield of atmospheric and vacuum distillation of petroleum oil Download PDFInfo
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- CN100348695C CN100348695C CNB2006100268561A CN200610026856A CN100348695C CN 100348695 C CN100348695 C CN 100348695C CN B2006100268561 A CNB2006100268561 A CN B2006100268561A CN 200610026856 A CN200610026856 A CN 200610026856A CN 100348695 C CN100348695 C CN 100348695C
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Abstract
The present invention relates to a method for promoting light oil yield of decompression and vacuum distillation of petroleum oil, which makes an additive agent containing resin added into crude oil of a decompression and vacuum distillation tower of petroleum oil, and the added quantity of the additive agent is 0.001 to 0.1% of the weight of the feeding amount of the crude oil. The components and the weight percentage of the additive agent comprise: 50 to 80% of natural organic substances of resin, 50 to 20% of organic solvents, and 7.0 to 7.5 of pH values, and the organic solvents are alcohol, ethylene glycol diethyl ether, ethyl n-propyl ketone, or ethylene glycol ethyl ether of acetic acid. The method of the present invention can be used for all of oil-extraction plants, comprising a normal-pressure and pressure-reducing distillation device, and the weight percentage of the yield of light oil distilled by normal pressure-reducing crude oil increases 1.5 to 2.3%.
Description
Technical field
The present invention relates to a kind of method that improves light oil yield of atmospheric and vacuum distillation of petroleum oil, is a kind of improvement technology in the refining of petroleum, can improve in the atmospheric and vacuum distillation of petroleum process productive rate than light constituent effectively.Belong to fuel and energy technology field.
Background technology
Therefore oil will face exhaustion in first half in this century, how improve its cut and go out rate and more and more seem important and urgent.Oil fuel processing at first is that crude oil is distilled time processing through ordinary decompression column, lighting end gasoline, kerosene, diesel oil in the crude oil are isolated, then more residual residual oil branch at the bottom of last running and the tower is entered devices such as catalytic cracking and coking and carry out secondary processing, it is converted into light-end products.In a word, every possible means, make the maximum benefit of crude oil performance the taking-up as much as possible of the light ends in the crude oil.
Chinese patent CN1030250A is with containing the petroleum catalytic cracking recycle stock of aromatic hydrocarbon or catalytic slurry as additive, the weight ratio of pressing 0.5-10% adds, can improve the vacuum distillate yield, but its addition is bigger, and be catalytic cracking recycle oil and catalytic slurry, these all are valuable petrochemical materials.In addition, this invention can only be used to have the refinery of catalytic cracking unit, and only limits to vacuum distillation range.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, a kind of method that improves light oil yield of atmospheric and vacuum distillation of petroleum oil is provided, the light oil yield in the time of can effectively improving crude distillation, and the cost that drops into is very low.
For realizing this purpose, the present invention has adopted a kind of additive that contains the rosin natural organic matter, is added to carry out normal reduced crude distillation in the crude oil when oil refining, can increase than the light constituent productive rate.
Components of additives of the present invention and weight percent are: the rosin natural organic matter of 50-80%, and the organic solvent of 50-20%, the pH value is 7.0～7.5.Wherein said organic solvent can be ethanol, ethylene glycol diethyl ether, ethyl propyl ketone, ethylene glycol ether etc.
Additive of the present invention is added in the crude oil of atmospheric and vacuum distillation of petroleum tower, and the add-on of additive is 0.001～0.1% of a crude oil feeding amount weight, is preferably 0.003～0.08%.In 0.001～0.1% add-on scope, the physical and chemical index of the normal vacuum distillate of gained does not have considerable change.
Additive of the present invention mainly contains the rosin natural organic matter, is natural organic nontoxic product, belongs to Green Product, poison exponent LD50 〉=950mg/kg (mouse).
The present invention adds additive in crude oil, the light oil yield in the time of can effectively improving crude distillation, and the cost that drops into is very low.Need not change simultaneously the structure of existing oil refining apparatus, a need add a pipeline in the process furnace ingress and gauge gets final product.
Method of the present invention can be used for all refinerys, comprises on normal pressure, the vacuum distillation apparatus.The weight percent of the light oil yield the when additive that the present invention adopts can make normal reduced crude distill increases by 1.5～2.3%, has significant substantial effect.
Embodiment
Below by specific embodiment technical scheme of the present invention is further described.
Embodiment 1:
Carry out on-the-spot normal pressure true boiling point distillation test with Daqing crude oil, components of additives and weight percent are: rosin 60%, ethyl propyl ketone 40%.The add-on of additive is 0.003% of a former weight of oil, and the gained test-results is as described in Table 1.
Table 1
| Temperature range ℃ | Blank cut yield w% | Doping 0.003% cut yield w% | The cut yield changes w% |
| ?＜200 | ?2.23 | ?2.66 | +0.43 |
| ?200～300 | ?3.29 | ?3.77 | +0.48 |
| ?300～365 | ?3.58 | ?4.20 | +0.62 |
| Add up to :+1.53% |
By table 1 data as can be known, improve normal pressure light oil yield 1.53%.
Embodiment 2:
With the Nile, Middle East crude oil: the crude oil proportioning is (Wenchang: Ban Qienasi)=85: 15, the true boiling point distillation of often reducing pressure test, distillation apparatus is the semi-automatic true boiling point distillation instrument that German FISCHER company makes, and this distillation apparatus meets ASTM2892 and ASTM5236 standard specifications.Components of additives and weight percent are: rosin 50%, ethylene glycol ether 50%.The add-on of additive is 0.004% of a former weight of oil, and the gained test-results is as shown in table 2.
Table 2
| Temperature range ℃ | Blank cut yield w% | Doping 0.004% cut yield w% | The cut yield changes w% |
| ?＜200 | ?16.77 | ?17.10 | +0.33 |
| ?200～365 | ?42.54 | ?43.73 | +1.19 |
| ?356～540 | ?73.22 | ?74.08 | +0.86 |
| Add up to :+2.38 |
By table 2 data as can be known, improve atmospheric tower light oil yield 1.52w%; Improve the vacuum distillation tower light oil yield o.86w%; Add up to light oil yield to increase 2.38w%.
Embodiment 3:
Crude oil and test apparatus are with example 2.Components of additives and weight percent are: rosin: 70%, and ethylene glycol diethyl ether 30%.The add-on of additive is 0.003% of a former weight of oil, and the gained test-results is as shown in table 3.
| Temperature range ℃ | Blank cut yield w% | Doping 0.003% cut yield w% | The cut yield changes w% |
| ?＜200 | ?16.77 | ?16.93 | +0.16 |
| ?200～365 | ?42.54 | ?43.48 | +0.94 |
| ?365～540 | ?73.22 | ?73.98 | +0.76 |
| Add up to :+1.86 |
By table 3 data as can be known, improve atmospheric tower light oil yield 1.10w%, improve vacuum distillation tower light oil yield 0.76w%, add up to light oil yield to increase 1.86w%.
Claims (2)
1, a kind of method that improves light oil yield of atmospheric and vacuum distillation of petroleum oil is characterized in that the additive that will contain rosin is added in the crude oil of atmospheric and vacuum distillation of petroleum tower, and the add-on of additive is 0.001～0.1% of a crude oil feeding amount weight; Described components of additives and weight percent are: the rosin natural organic matter of 50-80%, and the organic solvent of 50-20%, the pH value is 7.0～7.5; Described organic solvent is ethanol, ethylene glycol diethyl ether, ethyl propyl ketone or ethylene glycol ether.
2, according to the method for the raising light oil yield of atmospheric and vacuum distillation of petroleum oil of claim 1, the add-on that it is characterized in that described additive is 0.003～0.08% of a crude oil feeding amount weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100268561A CN100348695C (en) | 2006-05-25 | 2006-05-25 | Method for promoting light oil yield of atmospheric and vacuum distillation of petroleum oil |
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| CNB2006100268561A CN100348695C (en) | 2006-05-25 | 2006-05-25 | Method for promoting light oil yield of atmospheric and vacuum distillation of petroleum oil |
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| CN1884441A CN1884441A (en) | 2006-12-27 |
| CN100348695C true CN100348695C (en) | 2007-11-14 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475826B (en) * | 2008-11-21 | 2012-07-18 | 华东理工大学 | Atmospheric vacuum distillation process for light crude oil |
| CN102041028B (en) * | 2009-10-13 | 2013-08-14 | 中国石油化工股份有限公司 | Composite for strengthening crude oil distillation and application thereof |
| CN104419443B (en) * | 2013-09-09 | 2016-01-20 | 中国石油化工股份有限公司 | A kind of hydrocarbon ils distillating method |
| CN104830366B (en) * | 2015-05-13 | 2017-05-10 | 湖南长岭石化科技开发有限公司 | Method for enhancing crude oil distillation pull-out rate and improving residual oil properties |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4447318A (en) * | 1982-03-29 | 1984-05-08 | Nippon Zeon Co., Ltd. | Extractive distillation method |
| CN1030250A (en) * | 1987-03-16 | 1989-01-11 | 中国石油化工总公司洛阳石油化工工程公司 | Improve the method for fraction oil reclaim rate of petroleum vacuum distillation |
| CN1106857A (en) * | 1994-12-12 | 1995-08-16 | 上思县化工综合厂 | Process for producing machinery oil using rosin waste residue |
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2006
- 2006-05-25 CN CNB2006100268561A patent/CN100348695C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4447318A (en) * | 1982-03-29 | 1984-05-08 | Nippon Zeon Co., Ltd. | Extractive distillation method |
| CN1030250A (en) * | 1987-03-16 | 1989-01-11 | 中国石油化工总公司洛阳石油化工工程公司 | Improve the method for fraction oil reclaim rate of petroleum vacuum distillation |
| CN1106857A (en) * | 1994-12-12 | 1995-08-16 | 上思县化工综合厂 | Process for producing machinery oil using rosin waste residue |
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Granted publication date: 20071114 Termination date: 20100525 |