CN101967393A - Method for preparing microcrystalline wax from crude vacuum residuum - Google Patents
Method for preparing microcrystalline wax from crude vacuum residuum Download PDFInfo
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- CN101967393A CN101967393A CN2010105093413A CN201010509341A CN101967393A CN 101967393 A CN101967393 A CN 101967393A CN 2010105093413 A CN2010105093413 A CN 2010105093413A CN 201010509341 A CN201010509341 A CN 201010509341A CN 101967393 A CN101967393 A CN 101967393A
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- Prior art keywords
- microcrystalline wax
- vacuum residuum
- oil
- crude oil
- solvent
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- 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.)
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- Lubricants (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention belongs to the field of the utilization of crude vacuum residuum, and in particular discloses a method for preparing microcrystalline wax from crude vacuum residuum. In the method, the crude vacuum residuum is used as a raw material. The method is characterized by comprising the following steps of: deasphalting the residuum by adopting propane solvent to obtain light deasphalted oil; performing furfural refining on the light deasphalted oil; and dewaxing the refined light deasphalted oil serving as a raw material by adopting a butanone-toluene system as solvent to obtain microcrystalline wax and lubricant base oil. The method is simple, and has simple process parameters and low requirements on equipment, and is suitable for popularization and application, products with high quality and yield can be obtained at the low cost, and the operation is accurate.
Description
(1) technical field
The invention belongs to crude oil vacuum residuum and utilize the field, particularly a kind of crude oil vacuum residuum is produced the method for Microcrystalline Wax.
(2) background technology
As everyone knows, crude oil is handled through many distillations stage in the refinery.First distillation stage carries out under normal pressure, then carries out underpressure distillation under 10 to 30 millibars of pressure, obtains the electric overhead product that is about below 570 ℃ of normal pressure expense.Low value residue fraction boiling point remaining after underpressure distillation wherein more or less contains the crude oil feeding of significant proportion more than 570 ℃, and this knack is due to the quality of processed charging crude oil.In the past few years, it is found that crude oil constantly increases, produce the vacuum residuum of considerable amount, the therefore deep processing of this residual oil, again utilize more and more important.
(3) summary of the invention
The present invention provides the method for the crude oil vacuum residuum production Microcrystalline Wax that a kind of technology is simple, product recovery rate is high in order to remedy the deficiencies in the prior art.
The present invention is achieved through the following technical solutions:
A kind of crude oil vacuum residuum is produced the method for Microcrystalline Wax, with crude oil vacuum residuum is raw material, it is characterized in that: diasphaltene obtains frivolous oil to residual oil to adopt propane solvent, frivolous oil is carried out furfural treatment, with the frivolous oil of purified is raw material, adopt butanone-toluene system to dewax, obtain Microcrystalline Wax and lubricant base as solvent.
The present invention is to the operational condition of propane solvent diasphaltene, frivolous oily furfural treatment, butanone-toluene dewaxing process and solvent composition, agent-oil ratio, and the analysis and research of the character crystalline form of Microcrystalline Wax product and lubricant base.
The condition of described butanone-toluene system dewaxing is, the volume ratio of butanone and toluene is 1: 1, and thinning ratio is 4.5: 1, and cold wash ratio is 2: 1.
The deasphalting pressure of described propane solvent is 4.0Mpa, and the volume ratio of propane solvent and residual oil is 8: 1, and it is two sections operations, and one section temperature is 60 ℃, and two sections temperature are 70 ℃.
The temperature of described furfural treatment is 90 ℃, furfural and and the volume ratio of frivolous oil be 5: 1 o'clock, refining frivolous oily yield is the highest.
Technology of the present invention is simple, and operation accurately requires processing parameter simple, and is low for equipment requirements, can obtain high product quality and yield under lower cost, is suitable for wide popularization and application.
(4) embodiment
Embodiment:
With＞500 ℃ crude oil vacuum residuum is raw material, under 4.0Mpa pressure, adopts propane solvent to the residual oil diasphaltene, propane solvent and the volume ratio of residual oil be 8: 1, diasphaltene is two sections operations, one section temperature is 60 ℃, two sections temperature are 70 ℃, obtain frivolous oil at last.
Under 90 ℃, frivolous oil is carried out furfural treatment, furfural and and the volume ratio of frivolous oil be 5: 1; With the frivolous oil of purified is raw material, adopts butanone-toluene system to dewax as solvent, and wherein, the volume ratio of butanone and toluene is 1: 1, and thinning ratio is 4.5: 1, and cold wash ratio is 2: 1, obtains Microcrystalline Wax and lubricant base.
The present invention obtains ideal quality product and yield by selected each the production process optimal operation conditions of experimental study and solvent composition, agent-oil ratio.
Claims (4)
1. a crude oil vacuum residuum is produced the method for Microcrystalline Wax, with crude oil vacuum residuum is raw material, it is characterized in that: diasphaltene obtains frivolous oil to residual oil to adopt propane solvent, frivolous oil is carried out furfural treatment, with the frivolous oil of purified is raw material, adopt butanone-toluene system to dewax, obtain Microcrystalline Wax and lubricant base as solvent.
2. crude oil vacuum residuum according to claim 1 is produced the method for Microcrystalline Wax, it is characterized in that: the condition of described butanone-toluene system dewaxing is, the volume ratio of butanone and toluene is 1: 1, and thinning ratio is 4.5: 1, and cold wash ratio is 2: 1.
3. crude oil vacuum residuum according to claim 1 and 2 is produced the method for Microcrystalline Wax, it is characterized in that: the deasphalting pressure of described propane solvent is 4.0Mpa, and the volume ratio of propane solvent and residual oil is 8: 1, and it is two sections operations, one section temperature is 60 ℃, and two sections temperature are 70 ℃.
4. crude oil vacuum residuum according to claim 1 and 2 is produced the method for Microcrystalline Wax, and it is characterized in that: the temperature of described furfural treatment is 90 ℃, furfural and and the volume ratio of frivolous oil be 5: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105093413A CN101967393A (en) | 2010-10-18 | 2010-10-18 | Method for preparing microcrystalline wax from crude vacuum residuum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105093413A CN101967393A (en) | 2010-10-18 | 2010-10-18 | Method for preparing microcrystalline wax from crude vacuum residuum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101967393A true CN101967393A (en) | 2011-02-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105093413A Pending CN101967393A (en) | 2010-10-18 | 2010-10-18 | Method for preparing microcrystalline wax from crude vacuum residuum |
Country Status (1)
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| CN (1) | CN101967393A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113322099A (en) * | 2021-05-19 | 2021-08-31 | 盘锦北方沥青燃料有限公司 | Production method of microcrystalline wax with high drop melting point |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1177626A (en) * | 1997-09-10 | 1998-04-01 | 中国石油化工总公司 | Denitrification process for base oil of lubricating oil |
| CN1917257A (en) * | 2005-08-16 | 2007-02-21 | 深圳市雄韬电源科技有限公司 | Oxidation resistant protection method for ears of pole plate of accumulator |
| CN1944583A (en) * | 2005-10-09 | 2007-04-11 | 涿州贝尔森生化科技发展有限公司 | Deacidifying process for lubricating oil base oil |
-
2010
- 2010-10-18 CN CN2010105093413A patent/CN101967393A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1177626A (en) * | 1997-09-10 | 1998-04-01 | 中国石油化工总公司 | Denitrification process for base oil of lubricating oil |
| CN1917257A (en) * | 2005-08-16 | 2007-02-21 | 深圳市雄韬电源科技有限公司 | Oxidation resistant protection method for ears of pole plate of accumulator |
| CN1944583A (en) * | 2005-10-09 | 2007-04-11 | 涿州贝尔森生化科技发展有限公司 | Deacidifying process for lubricating oil base oil |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113322099A (en) * | 2021-05-19 | 2021-08-31 | 盘锦北方沥青燃料有限公司 | Production method of microcrystalline wax with high drop melting point |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110209 |
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| RJ01 | Rejection of invention patent application after publication |