CN1005062B - Method for increasing yield of distillate oil of petroleum vacuum distillation - Google Patents
Method for increasing yield of distillate oil of petroleum vacuum distillation Download PDFInfo
- Publication number
- CN1005062B CN1005062B CN87101902.7A CN87101902A CN1005062B CN 1005062 B CN1005062 B CN 1005062B CN 87101902 A CN87101902 A CN 87101902A CN 1005062 B CN1005062 B CN 1005062B
- Authority
- CN
- China
- Prior art keywords
- additive
- oil
- vacuum distillation
- distillate oil
- heavy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000003208 petroleum Substances 0.000 title claims abstract description 5
- 238000005292 vacuum distillation Methods 0.000 title claims description 8
- 239000000654 additive Substances 0.000 claims abstract description 28
- 230000000996 additive effect Effects 0.000 claims abstract description 28
- 238000004523 catalytic cracking Methods 0.000 claims abstract description 10
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 230000003197 catalytic effect Effects 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 4
- 238000004821 distillation Methods 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 28
- 230000006837 decompression Effects 0.000 description 6
- 239000012141 concentrate Substances 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The present invention belongs to an improvement on petroleum reduced pressure distillation method. It uses the distillate oil containing aromatic hydrocarbon and having catalytic cracking temp. above 350 deg.C as additive, and adds it into the feed of vacuum tower according to weight ratio by 0.5% -10%, and under the condition of not changing operation condition of vacuum tower the yield of vacuum distillate oil can be raised by 0.5% -10%. The additive does not need special processing, and is cheap and easy to obtain. The method is simple and easy to implement, and the factory can be implemented only by carrying out very simple technical transformation.
Description
The invention belongs to the technological improvement of oil vacuum distillation method.
As everyone knows, improve the method for oil decompression fraction oil yield, can adopt the change vacuum column operation conditions, for example reduce residual voltage, ways such as raising heater outlet temperature reach.Occurred again in recent years using the purpose that reaches raising fraction oil yield by the composition of adjusting distillating material.
Russian patent (A.C.N.791599) [1], adds by certain weight ratio as additive with arene concentrate (density of aromatic hydrocarbon 50～100% weights), can improve decompression fraction oil yield.This additive derives from extraction oil (its aromaticity content is about more than 65%) or other method of three-way lubricating oil selective finishing.
On the other hand, according to Soviet Union's " Fuels And Lubricants chemistry and technology " (" Х Н М Н Я И Т e Х Н О Л О Н И Я Т О Л Л И В " И М а с e*), 1986, NO.7, C.2～3)
[2] report, directly adopt three-way lubricating oil (420～470 ℃) fraction as additive, can receive the effect that increases fraction oil yield equally.
With the additive that employed arene concentrate of document [1] and document [2] use, its effect is significant.But document [1] exists a remarkable shortcoming, is exactly its employed additive, and the extraction plant (or allied equipment) that needs a lubricating oil selective finishing provides arene concentrate.This will bring the difficulty on the Technological Economy to the factory of this explained hereafter device of nothing.And arene concentrate is again the important source material of petrochemical complex.And document [2] is when using three-way lube cut, still needs in addition technological transformation of vacuum distillation apparatus, can implement.Undoubtedly, transform reliever construction more complicated, and its employed lube cut itself is the valuable raw material that is used to produce lubricating oil again.
The present invention can be applicable to all refinerys of catalytic cracking unit.Method is easy, and is less demanding to additive, and the source is wide, cheaply is easy to get, and does not need extension set or carries out plant modification.
The objective of the invention is to overcome the shortcoming of known technology, way is to adopt the two mixture of catalytic cracking recycle oil or catalytic slurry or its as additive, directly joins in atmospheric residue or the residual oil.It can not change increase fraction oil yield under the vacuum distillation tower operational condition.
Use additive of the present invention, it is heavy to make decompression fraction oil yield increase 0.5%-10%(), its increasing degree is relevant with service temperature and residual voltage, and is relevant with the add-on of additive, also relevant with the composition of raw material.
With boiling spread be generally 350-520 ℃ in the scope catalytic cracking recycle oil or the two mixture of catalytic slurry or they as additive, its add-on is heavy by weight the 0.5%-10%(that be inlet amount), be preferably 1.5%-6%(heavily).When this additive of an amount of adding, the physical and chemical index of resulting decompression fraction oil does not have tangible change.If wish to get more catalytically cracked material, can suitably add, so that head on out more wax oil into additive.
Another advantage of present method is to utilize oil property is relatively poor, commodity value is lower catalytic cracking recycle oil or catalytic slurry or the two mixture as additive, need not handle, only add a pipeline between the process furnace ingress to reducing pressure and corresponding measuring instrument gets final product in catalytic cracking unit.Less investment is implemented simple.
The employed additive of present method, its aromaticity content are that 20%-60%(is heavy).
Present method is applicable to the reduced pressure distillation process process of heavy oil, residual oil.
Embodiment 1
With the defeated commingled crude of pipe (to call the pipe oil transportation in the following text) long residuum (＞350 ℃ of fractions, down together), grand celebration long residuum and central plain oil long residuum are additive with catalytic cracking recycle oil, to investigate the action effect of additive.
It is as follows now only to enumerate typical additive:
Additive is numbered total aromaticity content, heavy %
Ⅰ 36.1
Ⅱ 41.8
Ⅲ 60.9
Working pressure is residual voltage 0.267KPa, and the boiling spread of decompression fraction oil is that 350-500 ℃ of test-results sees Table 1.
Table 1
Being not difficult to find out from table 1 data, doing additive with catalytic cracking recycle oil, is effectively for improving decompression fraction oil yield.
Embodiment 2
With the Central Plains long residuum is charging, heavy with containing aromatic hydrocarbons 50%-60%() catalytic cracking recycle oil produce as additive, long residuum character sees Table 2.
Table 2
The main operational condition of vacuum distillation tower:
Tower top temperature, ℃ 72-94
Wax oil is extracted a mouthful temperature, ℃ 204-229 out
The cat head residual voltage, KPa 5.23-3.23
The 2.17%(that accounts for inlet amount when the amount that adds additive is heavy) time, the decompressed wax oil yield sees Table 3
Table 3
Produce resulting decompressed wax oil character by above-mentioned condition, analytical results shows, true density, kinematic viscosity, condensation point, carbon residue, number-average molecular weight and group composition etc., and the person compares to add the additive with the end, and is basic identical.
The table I
Table 2
Density 0.9468g/Cm
5
Viscosity v100 ℃ of 172.4mm
2/ S
Carbon residue, %(is heavy) 11.58
Boiling range
Fore-running, ℃ 365
10% 441
500 ℃ distillate, and % 42.4
520 ℃ distillate, and % 46.8
Table 3
Claims (3)
1, a kind of is the method that additive improves fraction oil reclaim rate of petroleum vacuum distillation to contain aromatic hydrocarbon oil, it is characterized in that this additive is petroleum catalytic cracking recycle stock or catalytic slurry, or the mixture of the two.
2, in accordance with the method for claim 1, it is characterized in that this additive is heavy by the part by weight adding 0.5%～10%(of vacuum distillation tower inlet amount), preferably 1.5%～6%(is heavy).
3, described according to claim 1, the aromaticity content that it is characterized in that this additive is that 20%～60%(is heavy).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87101902.7A CN1005062B (en) | 1987-03-16 | 1987-03-16 | Method for increasing yield of distillate oil of petroleum vacuum distillation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87101902.7A CN1005062B (en) | 1987-03-16 | 1987-03-16 | Method for increasing yield of distillate oil of petroleum vacuum distillation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1030250A CN1030250A (en) | 1989-01-11 |
| CN1005062B true CN1005062B (en) | 1989-08-30 |
Family
ID=4813674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN87101902.7A Expired CN1005062B (en) | 1987-03-16 | 1987-03-16 | Method for increasing yield of distillate oil of petroleum vacuum distillation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1005062B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1094151C (en) * | 2000-01-04 | 2002-11-13 | 中国石油化工集团公司 | Process for treating catalytically cracked oil slurry |
| CN100348695C (en) * | 2006-05-25 | 2007-11-14 | 上海交通大学 | Method for promoting light oil yield of atmospheric and vacuum distillation of petroleum 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 |
| WO2013064563A1 (en) * | 2011-10-31 | 2013-05-10 | Shell Internationale Research Maatschappij B.V. | A method for upgrading an oil, a fuel product and a hydrocarbon product fraction |
| CN111978976A (en) * | 2019-12-19 | 2020-11-24 | 东营华联石油化工厂有限公司 | Method for improving distillate oil yield of atmospheric and vacuum distillation unit |
-
1987
- 1987-03-16 CN CN87101902.7A patent/CN1005062B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN1030250A (en) | 1989-01-11 |
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| C13 | Decision | ||
| C14 | Grant of patent or utility model | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| C19 | Lapse of patent right due to non-payment of the annual fee |