CN104818041B - The method that mesophase pitch is prepared with hydrocracking tail oil - Google Patents
The method that mesophase pitch is prepared with hydrocracking tail oil Download PDFInfo
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- CN104818041B CN104818041B CN201510189928.3A CN201510189928A CN104818041B CN 104818041 B CN104818041 B CN 104818041B CN 201510189928 A CN201510189928 A CN 201510189928A CN 104818041 B CN104818041 B CN 104818041B
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- China
- Prior art keywords
- tail oil
- hydrocracking tail
- mesophase pitch
- hydrocracking
- carbonization
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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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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C3/00—Working-up pitch, asphalt, bitumen
- C10C3/02—Working-up pitch, asphalt, bitumen by chemical means reaction
- C10C3/026—Working-up pitch, asphalt, bitumen by chemical means reaction with organic compounds
Abstract
The present invention relates to oil deep processing technical field, particularly a kind of method that mesophase pitch is prepared with hydrocracking tail oil.Its technical scheme is：It is raw material using hydrocracking tail oil, add the Co carbonization additive of 1 ~ 8wt%, carbonization 6 ~ 15h obtains mesophase pitch under 380 ~ 420 DEG C, 6 ~ 10MPa, inert gas atmosphere and stirring condition in autoclave.As preferred：Described hydrocracking tail oil is the hydrocracking tail oil of naphthene base crude reduced crude；Described Co carbonization additive is one of phenolic resin, butadiene-styrene rubber；Described noble gases include argon or nitrogen；Stirring condition is 400 ~ 900r/min.The present invention has the prominent advantages that：Hydrocracking tail oil wide material sources, cheap；Preparation process is simple；Prepared mesophase pitch optical texture is good, and middle phase content is high.
Description
Technical field
The present invention relates to oil deep processing technical field, particularly one kind prepare mesophase pitch with hydrocracking tail oil
Method.
Background technology
In recent years, increasingly serious, the secondary residual oil of oil of the intensification with world energy sources crisis and oil in poor quality degree
Exploitation, processing and using becoming a petrochemical important branch.Mesophase pitch is by multiple flat plate-like condensed ring virtues
A kind of nematic liquid crystal mixtures of hydrocarbon composition, are liquid crystal asphalt phase again.Mesophase pitch has the characteristic of liquid crystal, heat, light,
The aspects such as electricity, magnetic have special physical attribute.The wide material sources of mesophase pitch, have cheap, excellent performance and can
The advantages of processability is strong and be recognized the quality raw materials being to produce many functional materials.
United States Patent (USP) US4670129 adopts C in petroleum distillate8~C10Alkylbenzene is aroamtic hydrocarbon raw material, used formaldehyde/Bronsted acid
Catalytic crosslinking synthesizes aromatic resins, and through further heat treatment is prepared for the mesophase pitch of low softening point then.Japan Patent
NO.18421/83 adopts hydrogenation means to modulate mesophase pitch, mixes coal tar asphalt with hydrogen supply dissolvent first and is hydrogenated
Process, then through filtering and vacuum distillation isolates hydrogenation Colophonium, then carry out during heat treatment makes it be converted between high temperature, short time
Between asphalt phase.Chinese patent CN102181299, with coal asphalt or petroleum asphalt as raw material, is urged with alkene and Friedel-Crafts first
Agent is alkylated reaction, then alkylation Colophonium is carried out thermal polycondensation reaction and obtains mesophase pitch.Chinese patent
Aromatic compound and cross-linking agent and catalyst are carried out what cross-linking reaction synthesis was connected by methylene by CN1053001 by a certain percentage
Aromatic hydrocarbons oligomer, then thermally treated prepared mesophase pitch.But it is multiple all to there is technique in the above-mentioned method preparing mesophase pitch
The problems such as miscellaneous, high cost, high energy consumption.
Content of the invention
The purpose of the present invention is the problem existing for prior art, provides one kind to prepare mesophase with hydrocracking tail oil
The method of Colophonium.It is raw material that the method utilizes wide material sources, cheap hydrocracking tail oil, carbonization reaction in autoclave
Preparation has the mesophase pitch with high mesophase content of good optical structure.
The method preparing mesophase pitch with hydrocracking tail oil of the present invention, its technical scheme is：Using being hydrocracked
Tail oil be raw material, add 1 ~ 8wt% Co carbonization additive, in autoclave in 380 ~ 420 DEG C, 6 ~ 10MPa, indifferent gas bromhidrosis
Under atmosphere and stirring condition, carbonization 6 ~ 15h obtains mesophase pitch.
As preferred：Described hydrocracking tail oil is the hydrocracking tail oil of naphthene base crude reduced crude；Described
Co carbonization additive is one of phenolic resin, butadiene-styrene rubber；Described noble gases include argon or nitrogen；Stirring condition is
400~900r/min.
As preferred：The hydrocracking tail oil of described naphthene base crude reduced crude is naphthene base crude reduced crude warp
Fixed bed hydrogenation cracking or the tail oil of floating bed hydrocracking gained.
As preferred：The hydrocracking tail oil of described naphthene base crude reduced crude is the fraction of 520 DEG C of boiling point ＞.
The present invention has the prominent advantages that：Hydrocracking tail oil wide material sources, cheap；Preparation process is simple；It is obtained
Mesophase pitch optical texture good, middle phase content is high.
Specific embodiment
With reference to embodiment, illustrate the side preparing mesophase pitch with hydrocracking tail oil provided by the present invention
Method.
It is related to the hydrocracking tail oil of three kinds of naphthene base crude reduced crudes in embodiment, be respectively：Crude Oil In Dagang normal pressure
The fixed bed hydrogenation cracking tail oil of residual oil（DG-FBWY）, the Residue of Slurry-bed Hydrocracking of Gudao crude reduced crude（GD-
SPWY）Residue of Slurry-bed Hydrocracking with Shuizhong 36-1 petroleum reduced crude（SZ-SPWY）.
Embodiment 1, adds 200g DG-FBWY and 10g phenolic resin in autoclave, is purged with argon after sealing, heats up
To 400 DEG C, under the stirring of 600r/min, constant voltage 9MPa carries out carbonization 12h and obtains the optically anisotropic mesophase of 99vol%
Colophonium.
Embodiment 2, adds 210g GD-SPWY and 8g butadiene-styrene rubber in autoclave, is purged with nitrogen after sealing, heats up
To 410 DEG C, under the stirring of 500r/min, constant voltage 8MPa carries out carbonization 10h and obtains the optically anisotropic mesophase of 96vol%
Colophonium.
Embodiment 3, adds 210g SZ-SPWY and 15g butadiene-styrene rubber in autoclave, is purged with nitrogen after sealing, heats up
To 420 DEG C, under the stirring of 600r/min, constant voltage 6MPa carries out carbonization 15h and obtains the optically anisotropic mesophase of 99vol%
Colophonium.
Embodiment 4, adds 200g GD-SPWY and 15g phenolic resin in autoclave, is purged with argon after sealing, heats up
To 405 DEG C, under the stirring of 800r/min, constant voltage 10MPa carries out carbonization 12h and obtains the optically anisotropic centre of 100vol%
Asphalt phase.
Embodiment 5, adds 200g SZ-SPWY and 13g butadiene-styrene rubber in autoclave, is purged with nitrogen after sealing, heats up
To 390 DEG C, under the stirring of 600r/min, constant voltage 9MPa carries out carbonization 11h and obtains the optically anisotropic mesophase of 100vol%
Colophonium.
Claims (4)
1. with hydrocracking tail oil prepare mesophase pitch method it is characterised in that：It is raw material using hydrocracking tail oil, plus
Enter the Co carbonization additive of 1 ~ 8wt%, in 380 ~ 420 DEG C, 6 ~ 10MPa, inert gas atmosphere and stirring condition in autoclave
Lower carbonization 6 ~ 15h obtains mesophase pitch, and described Co carbonization additive is one of phenolic resin, butadiene-styrene rubber.
2. according to claim 1 with hydrocracking tail oil prepare mesophase pitch method it is characterised in that：Described
Hydrocracking tail oil be naphthene base crude reduced crude hydrocracking tail oil；Described noble gases include argon or nitrogen；
Stirring condition is 400 ~ 900r/min.
3. according to claim 2 with hydrocracking tail oil prepare mesophase pitch method it is characterised in that：Described
Naphthene base crude reduced crude hydrocracking tail oil be naphthene base crude reduced crude through fixed bed hydrogenation cracking or suspension
The tail oil of bed hydroprocessing cracking gained.
4. according to claim 3 with hydrocracking tail oil prepare mesophase pitch method it is characterised in that：Described
Naphthene base crude reduced crude hydrocracking tail oil be 520 DEG C of boiling point ＞ fraction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510189928.3A CN104818041B (en) | 2015-04-21 | 2015-04-21 | The method that mesophase pitch is prepared with hydrocracking tail oil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510189928.3A CN104818041B (en) | 2015-04-21 | 2015-04-21 | The method that mesophase pitch is prepared with hydrocracking tail oil |
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| Publication Number | Publication Date |
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| CN104818041A CN104818041A (en) | 2015-08-05 |
| CN104818041B true CN104818041B (en) | 2017-03-08 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9164191B2 (en) | 2011-02-09 | 2015-10-20 | Saudi Arabian Oil Company | Sequential fully implicit well model for reservoir simulation |
| US10113400B2 (en) | 2011-02-09 | 2018-10-30 | Saudi Arabian Oil Company | Sequential fully implicit well model with tridiagonal matrix structure for reservoir simulation |
| US10508240B2 (en) * | 2017-06-19 | 2019-12-17 | Saudi Arabian Oil Company | Integrated thermal processing for mesophase pitch production, asphaltene removal, and crude oil and residue upgrading |
| US10913901B2 (en) | 2017-09-12 | 2021-02-09 | Saudi Arabian Oil Company | Integrated process for mesophase pitch and petrochemical production |
| CN111363578B (en) * | 2020-04-14 | 2021-04-02 | 湖南东映长联科技有限公司 | Method for refining mesophase pitch by hydrogenation and chain transfer modification |
| CN114940918B (en) * | 2022-04-18 | 2024-02-27 | 郑州中科新兴产业技术研究院 | Mesophase pitch prepared from hydrogenated tail oil and method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053001C (en) * | 1996-12-20 | 2000-05-31 | 中国科学院山西煤炭化学研究所 | Process for preparing middle phase asphalt |
| CN103205271B (en) * | 2012-01-12 | 2016-03-09 | 易高环保能源研究院有限公司 | Hydrogenation of high temperature coal tar produces the method for mesophase pitch |
| CN103265966B (en) * | 2013-05-18 | 2014-10-22 | 中国石油大学(华东) | Preparation method of mesophase pitch with high mesophase content |
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