CN107937025A - A kind of oil hydrocracking tail oil prepares low-temperature lubrication oil base oil and preparation method thereof - Google Patents
A kind of oil hydrocracking tail oil prepares low-temperature lubrication oil base oil and preparation method thereof Download PDFInfo
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- CN107937025A CN107937025A CN201711180721.5A CN201711180721A CN107937025A CN 107937025 A CN107937025 A CN 107937025A CN 201711180721 A CN201711180721 A CN 201711180721A CN 107937025 A CN107937025 A CN 107937025A
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- China
- Prior art keywords
- oil
- tail
- preparation
- low
- carclazyte
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G67/00—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one process for refining in the absence of hydrogen only
- C10G67/02—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one process for refining in the absence of hydrogen only plural serial stages only
- C10G67/14—Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one process for refining in the absence of hydrogen only plural serial stages only including at least two different refining steps in the absence of hydrogen
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M177/00—Special methods of preparation of lubricating compositions; Chemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes
Abstract
The present invention proposes the preparation method that a kind of oil hydrocracking tail oil prepares low-temperature lubrication oil base oil.The present invention passes through：(1) carclazyte is added in oil hydrocracking tail oil, air-distillation obtains narrow fraction tail oil；(2) tail oil of 400 450 DEG C of cuts is selected, is refined with N-methyl pyrrolidones NMP counter-current extractions；(3) hydroisomerization catalyst is added, carries out isomerization reaction, reduces the pour point of base oil；(4) dissolved with ketone benzole soln, at 25~20 DEG C, crystallisation by cooling, filtering, then removes solvent；(5) carclazyte further refines, and obtains lube base oil.Lube base oil obtained by this method has relatively low pour point, can use at low ambient temperatures.
Description
Technical field
The present invention relates to field of lubricant, more particularly to a kind of oil hydrocracking tail oil prepares low-temperature lubrication oil base oil
And preparation method thereof.
Background technology
Lubricating oil is generally made of base oil and additive two parts, and base oil is the main component of lubricating oil, is decide
The fundamental property of lubricating oil.Lube base oil mainly divides mineral base oil, synthetic base oil and biological basis oil three major types,
Wherein mineral base oil is widely used, and dosage accounts for more than 95%.
Dormant oils base oil is refined by crude oil and formed.The main production process of lube base oil has：Atmospheric and vacuum distillation, solvent take off
Pitch, solvent refining, solvent dewaxing, carclazyte or hydrofining.Nineteen ninety-five has revised the lube base oil of China's current
Standard, mainly have modified sorting technique, and add the low solidifying and special base oil standard of two class of deep refining.Mineral type lubricating oil
Production, it is most important that select optimal crude oil.
The chemical composition of mineral base oil includes higher boiling, high-molecular weight hydrocarbon and non-hydrocarbons mixture.It forms general
For alkane (straight chain, side chain, highly branched chain), cycloalkane (monocyclic, bicyclic, polycyclic), aromatic hydrocarbons (mononuclear aromatics, polycyclic aromatic hydrocarbon), cycloalkanes
Base aromatic hydrocarbons and the non-hydrocarbons such as oxygen-containing, nitrogenous, organic compounds containing sulfur and colloid, asphalitine.
The content of the invention
Mirror with this, it is an object of the invention to propose a kind of oil hydrocracking tail oil prepare low-temperature lubrication oil base oil and
Its preparation method.
The technical proposal of the invention is realized in this way：
A kind of oil hydrocracking tail oil prepares the preparation method of low-temperature lubrication oil base oil, comprises the following steps：
Step 1：Carclazyte is added in oil hydrocracking tail oil, the tail oil air-distillation of carclazyte will be mixed with, obtains narrow evaporate
Divide tail oil；
Step 2：Selection 400-450 DEG C, 40 DEG C when viscosity be 20-75mm2The tail oil of/s cuts, using N-methyl pyrrolidines
Ketone NMP counter-current extractions refine；
Step 3：Tail oil after will be refined obtained by step 2, adds hydroisomerization catalyst, pressure 10-14MPa, reaction temperature
300-350 DEG C of degree；
Step 4：Tail oil fraction after step 3 gained hydroisomerizing is catalyzed is dissolved with ketone benzole soln, at -25~-20 DEG C
Under, crystallisation by cooling, filtering, then removes solvent；
Step 5：Step 4 products therefrom is further refined with carclazyte, obtains the low-temperature lubrication oil base oil.
Further, in the step 1, in oil hydrocracking tail oil, by weight calculate, oxygen content 0.50% with
Under, for saturated hydrocarbon content more than 97.5%, arene content is less than 1%.
Further, in the step 1, by weight calculating, the dosage of carclazyte is the 1-3% of tail oil.
Further, in the step 3, hydroisomerization catalyst is the molecular sieve of load platinum-tungsten alloys.
Further, in the step 4, by weight calculating, the dosage of carclazyte is the 2-4% of tail oil.
Further, in the step 4, ketone benzole soln is acetone and toluene.
Compared with prior art, beneficial effects of the present invention are：
1) present invention is by bleaching earth adsorption twice, and gained lube color is more shallow, and oil body is more transparent；
2) present invention eliminates the impurity of part sulfur-bearing, nitrogen before hydroisomerizing catalysis, can be with guard catalyst；
3) condensation point of present invention gained lube base oil is low, can be used in low temperature environment；
4) viscosity index (VI) of present invention gained lube base oil is higher, more than 100；
5) the lube base oil yield that preparation method of the present invention obtains is higher, reaches as high as 66.7%.
Embodiment
For the technical solution in the present invention is clearly and completely described in conjunction with the embodiments, it is clear that inventor is said
It is bright, but it is only part of the embodiment of the present invention that following embodiments are described, instead of all the embodiments.Based on the present invention
In embodiment, the every other implementation that those of ordinary skill in the art are obtained without making creative work
Example, belongs to the scope of protection of the invention.
A kind of oil hydrocracking tail oil prepares the preparation method of low-temperature lubrication oil base oil, comprises the following steps：
Step 1：Carclazyte is added in oil hydrocracking tail oil, the tail oil air-distillation of carclazyte will be mixed with, obtains narrow evaporate
Divide tail oil；
Step 2：The tail oil of temperature range cut shown in table 1 is selected, using N-methyl pyrrolidones NMP counter-current extractions essence
System；
Step 3：Tail oil after will be refined obtained by step 2, adds hydroisomerization catalyst, carries out isomerization reaction；
Step 4：Tail oil fraction after step 3 gained hydroisomerizing is catalyzed is dissolved with ketone benzole soln, crystallisation by cooling, mistake
Filter, then removes solvent；
Step 5：Step 4 products therefrom is further refined with carclazyte, obtains the low-temperature lubrication oil base oil.
Choose oxygen content 0.35%.For saturated hydrocarbon content 98.54%, the oil of arene content 0.71% is hydrocracked tail
Oil, according to parameter shown in table 1, prepares lube base oil embodiment 1-3, comparative example 1-3.
Table 1：
| Unit | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 | |
| First time carclazyte additive amount | % | 1 | 2 | 3 | 0 | 2 | 2 |
| Cut temperature | ℃ | 400-450 | 400-450 | 400-450 | 400-450 | 400-480 | 380-420 |
| Viscosity | mm2/s | 72.5 | 64.3 | 68.7 | 51.2 | 102.6 | 21.5 |
| Reaction pressure | MPa | 12 | 14 | 10 | 10 | 15 | 9 |
| Reaction temperature | ℃ | 320 | 300 | 350 | 300 | 280 | 360 |
| Crystallization temperature | ℃ | -20 | -25 | -25 | -27 | -18 | -22 |
| Second of carclazyte additive amount | % | 3 | 4 | 2 | 0 | 3 | 5 |
The physical parameter of test gained base oil, as shown in table 2.
Table 2：
| Unit | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 | |
| Colourity | Number | 0.5 | 0.5 | 0.5 | 2.5 | 1 | 0.5 |
| Yield | % | 66.7 | 61.2 | 60.9 | 21.5 | 60.8 | 42.5 |
| Viscosity index (VI) | —— | 104 | 100 | 102 | 103 | 96 | 89 |
| Pour point | ℃ | ≤-23.2 | ≤-28.3 | ≤-27.9 | ≤-21.10 | ≤-27.11 | ≤-27.12 |
| Lightning | ℃ | ≥232 | ≥244 | ≥235 | ≥229 | ≥198 | ≥204 |
| Acid number | mgKOH/g | 0.014 | 0.012 | 0.009 | 0.019 | 0.015 | 0.017 |
As can be seen that according to preparation method of the present invention, yield can be obtained more than 60%, viscosity index (VI) 100
More than, lightning is higher than 230 DEG C, and pour point is less than -23 DEG C of lube base oil, beyond given scope, then can influence gained lubrication
The yield and performance of oil base oil.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention god.
Claims (6)
1. a kind of oil hydrocracking tail oil prepares the preparation method of low-temperature lubrication oil base oil, it is characterised in that including following
Step：
Step 1：Carclazyte is added in oil hydrocracking tail oil, the tail oil air-distillation of carclazyte will be mixed with, obtains narrow fraction tail
Oil；
Step 2：Selection 400-450 DEG C, 40 DEG C when viscosity be 20-75mm2The tail oil of/s cuts, using N-methyl pyrrolidones NMP
Counter-current extraction refines；
Step 3：Tail oil after will be refined obtained by step 2, adds hydroisomerization catalyst, pressure 10-14MPa, reaction temperature
300-350℃；
Step 4：Tail oil fraction after step 3 gained hydroisomerizing is catalyzed is dissolved with ketone benzole soln, cold at -25~-20 DEG C
But crystallize, filter, then remove solvent；
Step 5：Step 4 products therefrom is further refined with carclazyte, obtains the low-temperature lubrication oil base oil.
2. oil hydrocracking tail oil according to claim 1 prepares the preparation method of low-temperature lubrication oil base oil, it is special
Sign is, in the step 1, in oil hydrocracking tail oil, by weight calculating, oxygen content is below 0.50%, saturated hydrocarbons
For content more than 97.5%, arene content is less than 1%.
3. oil hydrocracking tail oil according to claim 1 prepares the preparation method of low-temperature lubrication oil base oil, it is special
Sign is, in the step 1, by weight calculating, the dosage of carclazyte is the 1-3% of tail oil.
4. oil hydrocracking tail oil according to claim 1 prepares the preparation method of low-temperature lubrication oil base oil, it is special
Sign is, in the step 3, hydroisomerization catalyst is the molecular sieve of load platinum-tungsten alloys.
5. oil hydrocracking tail oil according to claim 1 prepares the preparation method of low-temperature lubrication oil base oil, it is special
Sign is, in the step 4, by weight calculating, the dosage of carclazyte is the 2-4% of tail oil.
6. oil hydrocracking tail oil according to claim 1 prepares the preparation method of low-temperature lubrication oil base oil, it is special
Sign is, in the step 4, ketone benzole soln is acetone and toluene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711180721.5A CN107937025A (en) | 2017-11-23 | 2017-11-23 | A kind of oil hydrocracking tail oil prepares low-temperature lubrication oil base oil and preparation method thereof |
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|---|---|---|---|
| CN201711180721.5A CN107937025A (en) | 2017-11-23 | 2017-11-23 | A kind of oil hydrocracking tail oil prepares low-temperature lubrication oil base oil and preparation method thereof |
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| CN107937025A true CN107937025A (en) | 2018-04-20 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101148615A (en) * | 2006-09-20 | 2008-03-26 | 中国石油化工股份有限公司 | Method for producing lubricating oil basic oil from hydrogenated tail oil |
| CN101173191A (en) * | 2006-11-01 | 2008-05-07 | 中国石油化工股份有限公司 | Method for producing lubricating oil basic oil |
| CN101376838A (en) * | 2007-08-27 | 2009-03-04 | 中国石油化工股份有限公司 | Production method of lubricating oil basic oil |
| CN102041029A (en) * | 2009-10-21 | 2011-05-04 | 中国石油化工股份有限公司 | Comprehensive utilization method of hydrocracking tail oil |
| CN107267201A (en) * | 2017-08-03 | 2017-10-20 | 广东华粤特种蜡科技有限公司 | A kind of production technology of the extraordinary special oils of 90SN |
-
2017
- 2017-11-23 CN CN201711180721.5A patent/CN107937025A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101148615A (en) * | 2006-09-20 | 2008-03-26 | 中国石油化工股份有限公司 | Method for producing lubricating oil basic oil from hydrogenated tail oil |
| CN101173191A (en) * | 2006-11-01 | 2008-05-07 | 中国石油化工股份有限公司 | Method for producing lubricating oil basic oil |
| CN101376838A (en) * | 2007-08-27 | 2009-03-04 | 中国石油化工股份有限公司 | Production method of lubricating oil basic oil |
| CN102041029A (en) * | 2009-10-21 | 2011-05-04 | 中国石油化工股份有限公司 | Comprehensive utilization method of hydrocracking tail oil |
| CN107267201A (en) * | 2017-08-03 | 2017-10-20 | 广东华粤特种蜡科技有限公司 | A kind of production technology of the extraordinary special oils of 90SN |
Non-Patent Citations (3)
| Title |
|---|
| 华东石油学院炼油工程教研室: "《石油炼制工程 下册》", 31 August 1981, 石油工业出版社 * |
| 熊云等: "《油品应用及管理》", 31 May 2004, 中国石化出版社 * |
| 辽宁省地方志编纂委员会办公室: "《辽宁省志 石化工业志》", 30 June 1996, 辽宁科学技术出版社 * |
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Application publication date: 20180420 |