CN108251154A - The method and its application of heavy oil visbreaking based on overcritical benzene - Google Patents
The method and its application of heavy oil visbreaking based on overcritical benzene Download PDFInfo
- Publication number
- CN108251154A CN108251154A CN201810140280.4A CN201810140280A CN108251154A CN 108251154 A CN108251154 A CN 108251154A CN 201810140280 A CN201810140280 A CN 201810140280A CN 108251154 A CN108251154 A CN 108251154A
- Authority
- CN
- China
- Prior art keywords
- benzene
- visbreaking
- heavy oil
- overcritical
- aromatic hydrocarbons
- 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.)
- Granted
Links
Classifications
-
- 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
- C10G21/00—Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents
- C10G21/06—Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents characterised by the solvent used
- C10G21/12—Organic compounds only
- C10G21/14—Hydrocarbons
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The present invention relates to a kind of method of the heavy oil visbreaking based on overcritical benzene, including：Heavy oil is placed in specific thermodynamic state (360~400 DEG C of temperature, 0.25~0.35g/cm of density3) overcritical phenyl ring border in, make the visbreaking of heavy oil from high-viscosity oil phase transfer to overcritical benzene phase, by spread improve accelerate influence heavy oil visbreaking efficiency aromatic hydrocarbons take off alkyl；Aromatic hydrocarbons in heavy oil visbreaking, which takes off alkyl and aromatic hydrocarbons condensation, has the macroscopical topological features of series connection, the inhibition that aromatic hydrocarbons takes off the acceleration of alkyl and overcritical benzene medium assembles arene-based supermolecule class coke under cascade reaction frame is relied on, synchronizing prevents the secondary aromatic hydrocarbons in vis-breaking process to be condensed.The method for employing the heavy oil visbreaking based on overcritical benzene of the present invention so that the visbreaking of heavy oil is accomplished in compared with low reaction temperatures and low residence times, and process realizes efficient visbreaking under the premise of raw material race composition is basically unchanged and does not have coking.
Description
Technical field
The present invention relates to the technical field of heavy oil processing more particularly to heavy oil visbreaking, in particular to one kind based on super
The method of the heavy oil visbreaking of critical benzene solvent.
Background technology
Unconventional heavy crude (API values<20 °) the 53% of global crude oil deposit has been accounted for, in the high viscous crude that will be exploited
Before being delivered to refinery by pipeline or shipping visbreaking must be carried out to crude oil.The continuous decrease of crude quality leads to Atmospheric vacuum slag
Oil reaches 45~55wt% of Chinese refinery's crude runs, and by part reduced pressure crude conversion to be also needed before fuel oil
Carry out visbreaking.When carrying out visbreaking to the inferior heavy oil using high viscous crude and decompression residuum as representative, belong to hot worked visbreaking and split
It is melted into the optional processing scheme for important (certain situations are even unique).
Visbreaking is related to the aromatic hydrocarbons that radical reaction mechanism is dominated and takes off alkyl and aromatic hydrocarbons condensation.Aromatic hydrocarbons side caused by the former
The variation of chain topological structure and scale is the key that heavy oil visbreaking, and asphalitine precipitation is then to lead to visbreaking product caused by the latter
The root that stability declines.The viscosity of heavy oil maintains 10 at Typical cracking temperature-3Pa.s or so
(Pet.Sci.Technol.2014,120,102).As shown in Figure 1, when visbreaking carries out at a lower temperature, cause anti-
The alkyl carbon radicals of network is answered easily to be quenched due to coupling in situ occurs for height viscous constraint, it is low that this directly results in visbreaking efficiency
Under.When improving reaction temperature to improve visbreaking efficiency, the content of system studies on asphaltene is far high due to the apparent activation energy of condensation
Rise in the analog value of de- alkyl, the stability of product is caused to decline.Height glue intrinsic constraint dynamic (dynamical) to cracking cause with
Reaction temperature and residence time can not obtain for the conventional visbreaking of control measures between visbreaking efficiency and product stability
Balance.
Invention content
The shortcomings that the purpose of the present invention is overcoming existing visbreaking technology, provide it is a kind of compared with low reaction temperatures and compared with
In short residence time, raw material race composition is basically unchanged and the efficient visbreaking of heavy oil without coking, based on overcritical benzene solvent
Method and its application.
Inventor recent studies have shown that supercritical fluid and heavy oil modification crossing domain：1) it is given birth to according to aromatic carbon free radical
Into the difference of approach, there are delicate differences for macroscopical topological structure of heavy oil heat cracking reaction network under different temperatures.Among these, it fits
Aromatic hydrocarbons, which takes off alkyl and aromatic hydrocarbons condensation, under the conditions of middle temperature macroscopically has series topology structure, and aromatic hydrocarbons condensation is then Porous deproteinized bone alkane
The secondary series connection step of base, referring to Fig. 2 (Ind.Eng.Chem.Res.DOI:10.1021/acs.iecr.7b04024)；2) surpass
The intervention of critical fluids (such as supercritical water) can make the thermal cracking of heavy oil from high-viscosity oil phase transfer to viscosity be only 10-5Pa.s's is super
(AIChE is J.2015,61,857) is carried out in critical fluids phase；3) improvement of supercritical fluid phase diffusional environment is conducive to aromatic hydrocarbons
Progress (the Energy Fuels 2017,31,3620 of de- alkyl；Energy Fuels 2015,29,7807)；4) aromatic hydrocarbons is super
The dynamics that supermolecule aggregation in critical fluids phase be condensed aromatic hydrocarbons with great influence (Chem.Eng.Sci.2016,146,
115)。
Summary achievement in research, the present invention provides one kind to be based on overcritical benzene (Tc=288.9 DEG C, Pc=4.90MPa)
The efficient visbreaking of heavy oil method.Using the intervention of overcritical benzene solvent so that the visbreaking of heavy oil is moved from traditional oil phase
It moves in overcritical benzene phase and carries out, accelerate to take off alkyl to the aromatic hydrocarbons that heavy oil visbreaking has key effect by spreading to improve.With this
Meanwhile the high dispersive supermolecule state of the acceleration and aromatic hydrocarbons of alkyl in overcritical benzene is taken off based on aromatic hydrocarbons under cascade reaction frame
Inhibit the aromatic hydrocarbons secondary condensation occurred during visbreaking.
The present invention's is mainly characterized by, and the method includes：
Heavy oil is placed in the overcritical phenyl ring border of specific thermodynamic state, the visbreaking of heavy oil is made to turn from high-viscosity oil phase
It moves in overcritical benzene phase, the specific thermodynamic state of the overcritical benzene specifically includes：The temperature of the overcritical benzene
It it is 360 DEG C~400 DEG C, the density of the overcritical benzene is 0.25~0.35g/cm3；
Based on the diffusional environment that overcritical benzene mutually provides, the aromatic hydrocarbons for influencing heavy oil visbreaking efficiency is accelerated to take off alkyl；
Taking off alkyl and aromatic hydrocarbons condensation according to aromatic hydrocarbons involved by heavy oil visbreaking under moderate temperatures, there is series connection macroscopic view to open up
Structure feature is flutterred, aromatic hydrocarbons is accelerated to take off alkyl by spreading to improve, aromatic hydrocarbons under cascade reaction frame is relied on to take off alkane on basis herein
High dispersive supermolecule state of the acceleration and aromatic hydrocarbons of base in overcritical benzene medium inhibits secondary aromatic hydrocarbons condensation, realizes heavy oil
Efficient visbreaking.
Preferably, the volume ratio of the overcritical benzene and the heavy oil is 2 under normal temperature condition:1~4:1.
Preferably, the reaction time of the visbreaking of the heavy oil is 5~45min.
The present invention also provides a kind of methods of the heavy oil visbreaking based on overcritical benzene, are mainly characterized by, described
Method include：
Add in heavy oil and benzene；
High-purity N2Purging；
It heats up and stirs；
It is kept the temperature after being warming up to reaction temperature, the heavy oil carries out visbreaking reaction in overcritical benzene phase；
Terminate reaction.
Preferably, the reaction temperature is 360~400 DEG C.
Preferably, the density of the overcritical benzene is 0.25~0.35g/cm3。
Preferably, the volume ratio of the overcritical benzene and the heavy oil is 2 under normal temperature condition:1~4:1.
Preferably, the reaction time of the visbreaking of the heavy oil is 5~45min.
Preferably, the method specifically includes：
Raw material heavy oil and benzene are added in high-pressure reactor；
Use high-purity N2Purge 10min；
Closed reactor is begun to warm up since room temperature with the rate of 10~15 DEG C/min, maintains stirring, stirring in the process
Rate keeps 600~700rpm；
5~45min is kept after reaching reaction temperature；
It is terminated and reacted with air cooling way.
The present invention also provides a kind of applications of the method for the heavy oil visbreaking based on overcritical benzene, main
Feature is that the product that the method obtains is conveyed for fuel oil or by pipeline/shipping mode.
The method for employing the heavy oil visbreaking based on overcritical benzene of the present invention makes weight using the intervention of overcritical benzene
The visbreaking of oil is mutually migrated into the superior overcritical benzene phase of diffusion from high-viscosity oil and is carried out；Correspondingly, visbreaking efficiency is determined
Aromatic hydrocarbons takes off alkyl and obtains essential acceleration since reaction controls approach response dynamics Controlling from diffusion；Meanwhile it is split as visbreaking
Change network in secondary cascade reaction, due to aromatic hydrocarbons take off alkyl acceleration and overcritical benzene solvent effect to arene-based supermolecule from
The inhibition of assembling so that aromatic hydrocarbons is condensed to yield effective control.The visbreaking of heavy oil is compared with low reaction temperature after overcritical benzene intervention
It is accomplished in degree and low residence times, process is realized efficient under the premise of raw material race composition is basically unchanged and does not have coking
Visbreaking, the product after visbreaking can be used as fuel oil or be delivered to refinery's progress following process by pipeline/shipping mode.
Description of the drawings
Fig. 1 is the signal of intrinsic contradictions between conventional heavy oil viscosity breaking technology visbreaking efficiency and visbreaking product stability
Figure.
Fig. 2 is related to aromatic hydrocarbons for visbreaking under condition of different temperatures and takes off alkyl and macroscopical topological structure of aromatic hydrocarbons condensation.
Specific embodiment
In order to more clearly describe the technology contents of the present invention, carried out with reference to specific embodiment further
Description.
It is of the invention to be situated between based on overcritical benzene in order to which the efficient visbreaking for realizing heavy oil maintains the stability of visbreaking product simultaneously
Heavy oil is placed in the overcritical phenyl ring border of specific thermodynamic state, makes subtracting for mink cell focus by the method for heavy oil visbreaking entered
Thus viscous cracking reaction determines that the aromatic hydrocarbons of visbreaking efficiency takes off alkyl from high-viscosity oil phase transfer to spreading in superior overcritical benzene phase
It is quickly carried out in a manner that the control of approach response intrinsic kinetics and non-diffusing control.
As shown in Fig. 2, according to the difference of aromatic carbon free radical constructive ways, heavy oil heat cracking reaction network under different temperatures
There are delicate differences for macroscopical topological structure.Aromatic carbon free radical can pass through aromatic hydrocarbons direct dehydrogenation (Ea=474`kJ/ under hot conditions
Mol it) obtains, condensation is completed through the coupling between aromatic carbon free radical after.(Ea=330kJ/ is broken relative to by alkyl C-C
Mol) aromatic hydrocarbons caused takes off alkyl, and aromatic hydrocarbons condensation is in parallel construction with it and is dominant because of Arrhenius effects.Middle low temperature
Under the conditions of aromatic carbon free radical the hydrogen (Ea=65kJ/mol) of taking by force of aromatic hydrocarbons can then be generated by methyl free radicals, and by light alkene
Addition, cyclisation and dehydrogenation complete follow-up condensation.It is the intermediate product of de- alkyl in view of methyl free radicals and light alkene,
Condensation becomes the secondary series connection step of de- alkyl at this time.
The method of the heavy oil visbreaking based on the intervention of overcritical benzene of the present invention, according to involved by heavy oil visbreaking network
And aromatic hydrocarbons take off alkyl and aromatic hydrocarbons condensation have the characteristics that under neutral temperature shown in Fig. 2 series connection macroscopic view topological structure this, pass through by
The aromatic hydrocarbons that transfer of response determines visbreaking efficiency to the addition quick decision of overcritical benzene takes off alkyl；As the secondary series connection in visbreaking network
Reaction, aromatic hydrocarbons condensation take off the inhibition of the acceleration and overcritical benzene solvent effect of alkyl to arene-based supermolecule self assembly due to aromatic hydrocarbons
And it is effectively controlled.
The present invention carries out the efficient visbreaking of heavy oil using overcritical benzene and handles, and products therefrom can be used as fuel oil or logical
Piping/shipping mode is delivered to refinery and makees follow-up deep processing.
Embodiment 1
Visbreaking under overcritical phenyl ring border：
10g raw material heavy oils (property is as shown in table 1) and 30g benzene are added in the autoclave for being 100mL in capacity, this into
Material strip part corresponds to benzene oil than 3:1 and overcritical benzene density 0.30g/cm3；
Use high-purity N2After purging 10min, the reactor of closing is begun to warm up since room temperature with the rate of 15 DEG C/min, mistake
Stir speed (S.S.) is maintained at 700rpm in journey；
Start timing after reaching 360 DEG C of assigned temperature；
After the reaction of completion predetermined time cracking is terminated with air-cooled reaction kettle body mode.
N2Conventional visbroken control experiment under environment：
30g feedstock oils are added in the high-pressure reactor for being 100mL in capacity；
By high-purity N2The high-purity N of 8.0~9.0MPa is filled with after purging2；
The reactor of closing is begun to warm up since room temperature with the rate of 15 DEG C/min, and stir speed (S.S.) is maintained in the process
700rpm；
Start timing (note after reaching 390 DEG C：Due to N2Heavy oil visbreaking efficiency is excessively low when environment is 360 DEG C lower, control
Experiment carries out at relatively high temperatures)；
After the reaction of completion predetermined time cracking is terminated with air-cooled reaction kettle body mode.
To ensure the experimental error of product distribution ± 5% hereinafter, more than all reaction process are repeated three times.Visbreaking produces
The viscosity of product using high temperature rheometer (TA Instruments, ARES, Advanced Rheology Expand System) into
Row measures.
1 raw material heavy oil property of table
The viscosity of raw material heavy oil is excessively high, so that viscosity value can only can just be measured after temperature is promoted to 120 DEG C.By
In N2Or in overcritical benzene after visbreaking, the analysis data of visbreaking product property are referring to table 2.
The property of heavy oil visbreaking product in 2 different medium of table
In N2Under the conditions of environment and 390 DEG C after the cracking of 150min, visbreaking product could measure 50 DEG C of viscosity, tool
Body numerical value is 1.94Pa.s.Other shorter visbreaking time products obtained therefroms can only measure 80 DEG C of viscosity.Nevertheless, reaction
Asphalt content during 150min in gained liquid-phase product reaches 16.32wt%, and H/C ratios are then down to from raw material value 1.54
1.43.That is, the visbreaking one side inefficiency carried out in traditional oil phase, the stability and quality of another aspect product
Decline to a great extent.
When visbreaking is carried out in overcritical benzene, even if visbreaking still can be carried out effectively in a low temperature of 360 DEG C.Reaction carries out
The measurement of cracked product viscosity can be carried out during 15min at 50 DEG C, it means that aromatic hydrocarbons dealkylation is in overcritical benzene
Greatly accelerated since diffusion improves.As the reaction time extends to 45min, either 50 DEG C or 80 DEG C of products measured
Monotonous decreasing trend is presented in viscosity number.
What is more important, in the process the H/C ratios of visbreaking product maintain raw material value 1.54, and yield of coke is always
It is 0.At the same time, the content of asphalitine only slightly rises to 8.3wt% from initial value 5.0wt%.
It is possible thereby to certainly, aromatic hydrocarbons condensation is because aromatic hydrocarbons takes off the acceleration of alkyl and aromatic hydrocarbons exists involved by heavy oil visbreaking
High dispersive in overcritical benzene medium and be effectively suppressed, correspondingly improve the stability and quality of visbreaking product.
Embodiment 2
The heavy oil visbreaking in overcritical phenyl ring border：
8.8g feedstock oils and 35g benzene are added in the autoclave for being 100mL in capacity, corresponding to benzene oil than 4:1 and super
Critical benzene density 0.35g/cm3；
Use high-purity N2After purging 10min, the reactor of closing is begun to warm up since room temperature with the rate of 15 DEG C/min, mistake
Stir speed (S.S.) is maintained at 700rpm in journey；
After reaching 400 DEG C of assigned temperature cracking is terminated with air-cooled reaction kettle body mode.
N2Conventional visbroken control experiment under environment：
30g feedstock oils are added in the high-pressure reactor for being 100mL in capacity；
By high-purity N2The high-purity N of 8.0~9.0MPa is filled with after purging2；
The reactor of closing is begun to warm up since room temperature with the rate of 15 DEG C/min, and stir speed (S.S.) is maintained in the process
700rpm；
Start timing after reaching 420 DEG C；
After the reaction of completion predetermined time cracking is terminated with air-cooled reaction kettle body mode.
The property of raw material heavy oil is as shown in table 1.By in N2Or after the visbreaking in overcritical benzene, visbreaking product property
Analysis data referring to table 3.
The property of heavy oil visbreaking product in 3 different medium of table
aVisbreaking is completed in warm
In N2Heavy oil visbreaking is carried out under environment, the promotion of reaction temperature helps to improve visbreaking efficiency.420 DEG C of temperature
Under the conditions of after cracking 30min gained visbreaking product can measure 50 DEG C of viscosity.However the content of product studies on asphaltene is high at this time
Up to 15.2wt%, it is meant that product stability and quality decline to a great extent.Product can be made to 45min by continuing to extend soaking periods
Viscosity further reduces, but the coke of 3.6wt% occurs in moment in reaction system.Burnt appearing in visbreaking is not permitted
Perhaps.
When the visbreaking of heavy oil, which is migrated, to be carried out into overcritical benzene, visbreaking efficiency is because reaction temperature is in limited range
Promotion obtain essential improvement.In scheduled 400 DEG C of reaction temperature, even if cracking is terminated at once when temperature reaches setting value
(visbreaking is completed in warm), products obtained therefrom remain able to measure 50 DEG C of viscosity number 1.26Pa.s.At this point, yield of coke is
0 and the content of visbreaking product studies on asphaltene is only 6.9wt%.In addition, the H/C ratios of liquid-phase product compared with raw material value 1.54 not
It changes.
By data in table 3 as it can be seen that the heavy oil visbreaking in overcritical benzene has significant advantage with respect to traditional handicraft：Visbreaking efficiency
Height, product stability are good and product quality is high.
The method for employing the heavy oil visbreaking based on overcritical benzene of the present invention makes weight using the intervention of overcritical benzene
The visbreaking of oil is mutually migrated into the superior overcritical benzene phase of diffusion from high-viscosity oil and is carried out；Correspondingly, visbreaking efficiency is determined
Aromatic hydrocarbons takes off alkyl and obtains essential acceleration since reaction controls approach response dynamics Controlling from diffusion；Meanwhile it is split as visbreaking
Change network in secondary cascade reaction, due to aromatic hydrocarbons take off alkyl acceleration and overcritical benzene solvent effect to arene-based supermolecule from
The inhibition of assembling so that aromatic hydrocarbons is condensed to yield effective control.The visbreaking of heavy oil is compared with low reaction temperature after overcritical benzene intervention
It is accomplished in degree and low residence times, process is realized efficient under the premise of raw material race composition is basically unchanged and does not have coking
Visbreaking, the product after visbreaking can be used as fuel oil or be delivered to refinery's progress following process by pipeline/shipping mode.
In this description, the present invention is described with reference to its specific embodiment.But it is clear that it can still make
Various modifications and alterations are without departing from the spirit and scope of the invention.Therefore, the description and the appended drawings should be considered as illustrative
And not restrictive.
Claims (10)
- A kind of 1. method of the heavy oil visbreaking based on overcritical benzene, which is characterized in that the method includes：Heavy oil is placed in the overcritical phenyl ring border of specific thermodynamic state, the visbreaking of heavy oil is reacted and turns from high-viscosity oil phase It moves in overcritical benzene phase and carries out, the specific thermodynamic state of the overcritical benzene specifically includes：The overcritical benzene Temperature is 360 DEG C~400 DEG C, and the density of the overcritical benzene is 0.25~0.35g/cm3；Based on the diffusional environment that overcritical benzene mutually provides, the aromatic hydrocarbons for influencing heavy oil visbreaking efficiency is accelerated to take off alkyl；Taking off alkyl and aromatic hydrocarbons condensation according to aromatic hydrocarbons involved by heavy oil visbreaking has the macroscopical topological features of series connection, relies on string The inhibition that aromatic hydrocarbons takes off the acceleration of alkyl and overcritical benzene medium assembles arene-based supermolecule class coke under connection reaction frame, synchronizes anti- The only secondary aromatic hydrocarbons condensation in vis-breaking process.
- 2. the method for the heavy oil visbreaking according to claim 1 based on overcritical benzene, which is characterized in that described is super The volume ratio of critical benzene and the heavy oil is 2 under normal temperature condition:1~4:1.
- 3. the method for the heavy oil visbreaking according to claim 1 based on overcritical benzene, which is characterized in that the weight The reaction time of the visbreaking of oil is 5~45min.
- A kind of 4. method of the heavy oil visbreaking based on overcritical benzene, which is characterized in that the method includes：Add in heavy oil and benzene；High-purity N2Purging；It heats up and stirs；It is kept the temperature after being warming up to reaction temperature, the heavy oil carries out visbreaking reaction in overcritical benzene phase；Terminate reaction.
- 5. the method for the heavy oil visbreaking according to claim 4 based on overcritical benzene, which is characterized in that described is anti- It is 360 DEG C~400 DEG C to answer temperature.
- 6. the method for the heavy oil visbreaking according to claim 4 based on overcritical benzene, which is characterized in that described is super The density of critical benzene is 0.25~0.35g/cm3。
- 7. the method for the heavy oil visbreaking according to claim 4 based on overcritical benzene, which is characterized in that described is super The volume ratio of critical benzene and the heavy oil is 2 under normal temperature condition:1~4:1.
- 8. the method for the heavy oil visbreaking according to claim 4 based on overcritical benzene, which is characterized in that the weight The reaction time of the visbreaking of oil is 5~45min.
- 9. the method for the heavy oil visbreaking according to claim 4 based on overcritical benzene, which is characterized in that the side Method specifically includes：Raw material heavy oil and benzene are added in high-pressure reactor；Use high-purity N2Purge 10min；Closed reactor is begun to warm up since room temperature with the rate of 10~15 DEG C/min, maintains stirring, stir speed (S.S.) in the process Keep 600~700rpm；5~45min is kept after reaching reaction temperature；It is terminated and reacted with air cooling way.
- 10. the application of the method for the heavy oil visbreaking based on overcritical benzene described in a kind of any one of claim 1 to 9, It is characterized in that, the product that the method obtains is used for fuel oil or is conveyed by pipeline/shipping mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810140280.4A CN108251154B (en) | 2018-02-11 | 2018-02-11 | Heavy oil visbreaking method based on supercritical benzene and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810140280.4A CN108251154B (en) | 2018-02-11 | 2018-02-11 | Heavy oil visbreaking method based on supercritical benzene and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108251154A true CN108251154A (en) | 2018-07-06 |
| CN108251154B CN108251154B (en) | 2020-07-03 |
Family
ID=62745064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810140280.4A Active CN108251154B (en) | 2018-02-11 | 2018-02-11 | Heavy oil visbreaking method based on supercritical benzene and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108251154B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109628134A (en) * | 2019-02-15 | 2019-04-16 | 华东理工大学 | Method for regulating and controlling heavy oil molecules structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1307085A (en) * | 2000-01-21 | 2001-08-08 | 中国石油化工集团公司 | Method for thermal cracking residue in supercritical solvent |
| US20150321975A1 (en) * | 2014-05-12 | 2015-11-12 | Saudi Arabian Oil Company | Process to produce aromatics from crude oil |
| CN106350101A (en) * | 2016-09-19 | 2017-01-25 | 华东理工大学 | Method for pretreating heavy oil based on self-assembling effect of heavy aromatics in subcritical/supercritical water and application |
| CN106987265A (en) * | 2017-04-10 | 2017-07-28 | 华东理工大学 | The processing method of mink cell focus dehesion based on supercritical water |
-
2018
- 2018-02-11 CN CN201810140280.4A patent/CN108251154B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1307085A (en) * | 2000-01-21 | 2001-08-08 | 中国石油化工集团公司 | Method for thermal cracking residue in supercritical solvent |
| US20150321975A1 (en) * | 2014-05-12 | 2015-11-12 | Saudi Arabian Oil Company | Process to produce aromatics from crude oil |
| CN106350101A (en) * | 2016-09-19 | 2017-01-25 | 华东理工大学 | Method for pretreating heavy oil based on self-assembling effect of heavy aromatics in subcritical/supercritical water and application |
| CN106987265A (en) * | 2017-04-10 | 2017-07-28 | 华东理工大学 | The processing method of mink cell focus dehesion based on supercritical water |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109628134A (en) * | 2019-02-15 | 2019-04-16 | 华东理工大学 | Method for regulating and controlling heavy oil molecules structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108251154B (en) | 2020-07-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20160122667A1 (en) | Upgrading Hydrocarbon Pyrolysis Products | |
| CN106232778B (en) | Use the pyrolytic tar upgrading of recycled product | |
| US10597592B2 (en) | Upgrading hydrocarbon pyrolysis tar | |
| US3617480A (en) | Two stages of coking to make a high quality coke | |
| KR101712238B1 (en) | Process for delayed coking of whole crude oil | |
| US20180171239A1 (en) | Pyrolysis Tar Conversion | |
| CA2845002C (en) | Preheating feeds to hydrocarbon pyrolysis products hydroprocessing | |
| WO2009001610A1 (en) | Process for producing petroleum coke | |
| TW200846456A (en) | Process for cracking synthetic crude oil-containing feedstock | |
| TW200302269A (en) | Method for the preparation of lower olefines by steam cracking | |
| CN108251154A (en) | The method and its application of heavy oil visbreaking based on overcritical benzene | |
| CN101368086A (en) | High temperature modified conduction oil and preparation method thereof | |
| JPH02212593A (en) | Method of conversion of heavy hydrocarbon feedstock | |
| US4179474A (en) | Process for conversion of naphtha to ethylene | |
| WO2010080147A1 (en) | Silicone free anti-foaming process and controlled foaming process for petroleum coking | |
| JP4133818B2 (en) | Method for producing more uniform and high quality coke | |
| CN106987265B (en) | The processing method of mink cell focus dehesion based on supercritical water | |
| JP2022541649A (en) | Heat treatment process and system for increasing pitch yield | |
| CN103534336B (en) | For the method preparing high VCM coke | |
| US6764592B1 (en) | Drum warming in petroleum cokers | |
| CN113004924B (en) | Needle coke production process for ultrahigh-power graphite electrode joint | |
| CN109628134B (en) | Method for regulating and controlling heavy oil molecular structure | |
| JP4225786B2 (en) | Method for reducing fouling in coking process | |
| EP0200786B1 (en) | Coking apparatus | |
| JPS5934752B2 (en) | caulking houhou |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |