CN109749793A - A method of preparing pitch base fuel oil - Google Patents
A method of preparing pitch base fuel oil Download PDFInfo
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- CN109749793A CN109749793A CN201910082858.XA CN201910082858A CN109749793A CN 109749793 A CN109749793 A CN 109749793A CN 201910082858 A CN201910082858 A CN 201910082858A CN 109749793 A CN109749793 A CN 109749793A
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Abstract
The present invention relates to a kind of methods for preparing pitch base fuel oil, and penetrating method using cavitation reinforcement stream, the jet mixing together with diluent, promotor obtains pitch base fuel oil by pitch.The non-emulsified method that the method for the present invention realizes pitch reconciles, and substantially increases dispersibility and stability of the asphalitine in diluent, pitch base fuel oil obtained can normal temperature storage 1 year or more and without lamination.And compared with prior art, there are the advantages such as simple, safety, quality is stable and low in cost, it is easy to implement.
Description
Technical field
The invention belongs to coal chemical industries and fuel science field, more particularly to a kind of method for preparing pitch base fuel oil.
Background technique
Pitch is complicated by the dark brown high viscosity that the hydrocarbon and its non metallic derivatives of different molecular weight form
Organogel shape substance can be mainly divided into coal tar pitch, asphalt, bitumen and four kinds of shale tar pitch by its source.
Asphalt surface is in black, dissolves in carbon disulfide.Chemically from the point of view of ingredient, pitch one kind is made of oily phase, resin and asphalt
Complicated sol system.Wherein, oil is mutually the small molecule dispersed phase being made of saturated hydrocarbons and aromatic hydrocarbon, the quality accounting in pitch
50~70%；Colloid is resin of the molecular weight 1000~2000, quality accounting 15~30%；Asphalitine is that molecular weight is thousands of
To the thick aromatic substance of complexity up to ten thousand, quality accounting 2~25%.Therefore, pitch can be described as from molecular level: with molecule matter
Centered on measuring very big asphalitine, micelle is formed in some resin colloids of ambient absorption, is dispersed in oily phase, to form drip
Green sol system.
Pitch is as a kind of waterproof and dampproof and corrosion-resistant organic cementitious material.It can be applied to the industry such as coating, plastics, rubber
And the fields such as surfacing.But from the point of view of Downstream Market demand, asphaltic products are mainly used in highway, municipal road
The laying in the places such as road, bridge and airport, wherein highway construction accounts for 82% for the consumption of pitch.In the certain feelings of production capacity
Under condition, the increase of downstream demand can further push the growth of asphaltic products price, conversely, can then bring the downlink of price.
Due to cheap, the fuel research of asphalt source starts to be paid attention to by energy source and power worker.Pitch therein
By the way that light oil is added or adds water emulsification, the fuel oil for meeting application requirement is prepared in blending blending and processing appropriate,
With certain cost advantage.It is a kind of very high spawn of softening point based on pitch, is used for one when fuel oil modulation
As take colloid mill to be dispersed, then emulsification modulation [He Jun tar asphalt emulsification production fuel oil fuel and chemical industry,
2002,33(6):318-319.].Preparation efficiency is lower, it is difficult to which quickly large-scale production, quality are also difficult to control.It should attempt to use
The oil product modulation technique of higher efficiency.
Jet stream (Jet) refers to that fluid is projected from nozzle, aperture, slit, and with the stream of fluid flowing of surrounding fluid blending.
Jet stream is usually the free turbulence that constrain without Gu Bi, surrounding fluid rolled up by turbulent closure scheme active on boundary suck in without
Disconnected to expand, cocurrent is downstream.Jet stream has turbulent diffusion, can be carried out momentum, heat and mass transfer, can be applied to jet
The technologies such as engine, hydroelectric generation, fire-fighting lance, farmland sprinkling irrigation, contamination, fountain, hydraulic mining, cubic metre of earth and stone punching digging
Field.Jet flow cavitation is artificially to induce cavitation out of nozzle projects water jet.Liquid stream enters jet pipe with certain speed, is flowing
When being emitted flow tube, since aperture narrows, jet stream is formed in outlet end.Formed before and after fluidic vectoring thrust there are two low-pressure area: one is
Tangential region when fluidic vectoring thrust；The other is jet stream enters the vortex formed when opposing stationary fluid.In certain condition
Under, pressure necessary to the pressure in the two regions is stablized lower than gas core, gas nucleus growth simultaneously quickly forms big full of steam
Cavitation bubble.When cavitation bubble flows out this region with fluid, since pressure increases suddenly, bubble collapse generates cavitation
(Cavitation) effect.When cavitation occurs, each cavitation bubble is used as one " microreactor ".Containing organic polymer
Heterogeneous system in, can produce powerful shearing force when crumbling and fall due to cavitation bubble in a fluid, molecular chemical bond can be made to occur disconnected
It splits, generate free radicals and then causes various reactions, compare typically degradation reaction and oxidation reaction.
Have more mix fluidics applied to oil product in document and concoct case, such as: CN1079278C discloses one
Kind utilizes tube-type fluidic device to carry out diesel emulsion mixed method；Xie Fu is superfine to be proposed a set of gasoline concoction and is mixed with rotating jet
System [Xie Fuchao, gasoline rotating jet concoct process Dynamical Characteristics, Shandong University's master thesis, 2011.]；?
Setting plum etc., also by jets in crossflow mixing, applied to gasoline concoction, [Zhang Shumei, application of the jet mixing technology in gasoline concoction are ground
Study carefully, China Petroleum Univ.'s master thesis, 2007.].These cases are just with jet mixing technology to low viscous
Degree oil product carries out mixing blending (very studying less the cavitation chemical action of oil product in the jet), to these high viscosity oils of pitch
Jet mixing application case it is seldom, pitch itself also due to the thick armaticity of itself and its thousands of above molecular weight and be easy to
Assemble split-phase (layer), this also illustrates the non-emulsified method of pitch reconciliation difficulty is very large.
It is practical with from the perspective of economic benefit from production, it is integrated using this more efficient physical chemistry of jet flow cavitation
Method, the dispersion and stabilization problem that pitch is solved from molecular level, it is crucial to become the industrialization for preparing fuel oil for pitch.
Summary of the invention
In view of the drawbacks of the prior art, the object of the present invention is to provide a kind of methods for preparing pitch base fuel oil.
The purpose of the present invention is what is be achieved through the following technical solutions:
The present invention provides a kind of methods for preparing pitch base fuel oil, penetrate method for pitch and dilution using cavitation reinforcement stream
Jet mixing obtains pitch base fuel oil together for agent, promotor.
Preferably, the method specifically includes the following steps:
Pitch is first heated, then positive pressure enters fluidic device, forms fluid 1；
After promotor is pre-dissolved in diluent, positive pressure enters fluidic device, forms fluid 2；
Releasing stress makes fluid 1 and the mutual turbulent mixture of fluid 2, flows out to get the pitch base fuel oil.
Preferably, the mass ratio of the pitch, diluent, promotor are as follows: 10~60:30~89:0.1~10.
Preferably, the pitch includes one or more in selected from coal tar pitch and petroleum asphalt, bitumen and shale tar pitch.
Preferably, the diluent includes benzene,toluene,xylene, ethylo benzene, washing oil, carbolineum, white oil, solvent naphtha, acetic acid
It is one or more in ethyl ester, ethyl alcohol, methanol, butanol and dimethyl ether.
Preferably, the promotor includes dibenzoyl peroxide, tert-butyl hydroperoxide, cyclohexanone peroxide, peroxide
Change one of lauroyl, oxygen, hydrogen peroxide, azodiisobutyronitrile, azobisisoheptonitrile and ammonium persulfate or a variety of.
Preferably, the pitch is heated on softening temperature 30~60 DEG C.
Preferably, the pitch enters fluidic device with the positive pressure of 0.1~5MPa；After the promotor is pre-dissolved in diluent
Enter fluidic device with the positive pressure of 0.1~5MPa.
The cavitation reinforcement, for the chemical reaction being added in promotor reinforcing jet flow cavitation.Cavitation bubble is crumbled and fall Shi Liu
It can produce powerful shearing force in body, molecular chemical bond can be made to be broken, generate free radicals and then cause various reactions, compare
Typically degradation reaction and oxidation reaction.And the promotor that the present invention is added, it can generate free radicals in the jet, promote pitch
Degradation reaction and oxidation reaction, make asphalitine macromolecules degradation small molecule and increase polar group, reduce asphaltene aggregation
Trend improves the asphalitine storage stability inner in diluent (or solvent).
Compared with prior art, the present invention have it is following the utility model has the advantages that
The present invention uses the physical method of walk away safety, low in cost, easy to implement.
The non-emulsified method that the method for the present invention realizes pitch reconciles, and substantially increases dispersion of the asphalitine in diluent
Property and stability, pitch base fuel oil obtained can normal temperature storage 1 year or more and without lamination.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection scope.
Embodiment 1:
The coal tar pitch (60 DEG C of softening point) that quality accounting is 40% is first heated to 110 DEG C, then with the positive pressure of 0.3MPa
Level-one feed pipe into fluidic device forms fluid 1；By quality accounting be 59.5% benzene and quality accounting be 0.5% mistake
After aoxidizing dibenzoyl mixing, fluid 2 is formed with the secondary feed tube that the positive pressure of 0.3MPa enters fluidic device；Two fluids exists
It is released stress in the flash vessel of device, mutual turbulent mixture, after the outflow of fluidic device slit, fluid is empty because bulking effect generates
It is quick-fried to intensify, micronized fluid is formed, after flowing out fluidic device, forms the mix asphalt base fuel oil of stable and uniform, it can room temperature storage
Deposit 1 year or more and without lamination.
Embodiment 2:
The asphalt (80 DEG C of softening point) that quality accounting is 30% is first heated to 125 DEG C, then just with 0.8MPa
The level-one feed pipe for being pressed into incident flow device forms fluid 1；The cyclohexanone peroxide for being 8% by 62% washing oil and quality accounting
After mixing, fluid 2 is formed with the secondary feed tube that the positive pressure of 0.8MPa enters fluidic device；Flash vessel of the two fluids in device
In release stress, mutual turbulent mixture, after the outflow of fluidic device slit, fluid because bulking effect generates it is empty it is quick-fried intensify, formed
Micronized fluid, flow out fluidic device after, form the mix asphalt base fuel oil of stable and uniform, can normal temperature storage 1 year or more and
Without lamination.
Embodiment 3:
The coal tar pitch (90 DEG C of softening point) that quality accounting is 20% is first heated to 130 DEG C, then with the positive pressure of 1.5MPa
Level-one feed pipe into fluidic device forms fluid 1；55% dimethylbenzene, the carbolineum that quality accounting is 22% and quality are accounted for
After the azodiisobutyronitrile mixing for 3%, fluid 2 is formed with the secondary feed tube that the positive pressure of 1.5MPa enters fluidic device；
Two fluids releases stress in the flash vessel of device, mutual turbulent mixture, and after the outflow of fluidic device slit, fluid is because of expansion
Effect generation sky is quick-fried to be intensified, and is formed micronized fluid, after flowing out fluidic device, is formed the mix asphalt base fuel of stable and uniform
Oil, can normal temperature storage 1 year or more and without lamination.
Embodiment 4:
The shale tar pitch (90 DEG C of softening point) that quality accounting is 10% is first heated to 120 DEG C, then just with 0.1MPa
The level-one feed pipe for being pressed into incident flow device forms fluid 1；By quality accounting be 89.9% ethyl acetate and quality accounting be
After 0.1% oxygen mix, fluid 2 is formed with the secondary feed tube that the positive pressure of 0.1MPa enters fluidic device；Two fluids exists
It is released stress in the flash vessel of device, mutual turbulent mixture, after the outflow of fluidic device slit, fluid is empty because bulking effect generates
It is quick-fried to intensify, micronized fluid is formed, after flowing out fluidic device, forms the mix asphalt base fuel oil of stable and uniform, it can room temperature storage
Deposit 1 year or more and without lamination.
Embodiment 5:
The bitumen (60 DEG C of softening point) that quality accounting is 60% is first heated to 120 DEG C, then with the positive pressure of 5MPa
Level-one feed pipe into fluidic device forms fluid 1；By quality accounting be 39% white oil and quality accounting be 1% peroxide
After changing hydrogen mixing, fluid 2 is formed with the secondary feed tube that the positive pressure of 5MPa enters fluidic device；Dilatation of the two fluids in device
It is released stress in device, mutual turbulent mixture, after the outflow of fluidic device slit, because bulking effect generates, sky is quick-fried to be intensified fluid, shape
The mix asphalt base fuel oil of stable and uniform is formed after flowing out fluidic device at micronized fluid, it can be normal temperature storage 1 year or more
And without lamination.
Comparative example 1:
The asphalt (80 DEG C of softening point) that quality accounting is 30% is first heated to 125 DEG C, is then with quality accounting
70% benzene is stirred together, obtains pitch base fuel oil, there is lamination after normal temperature storage 3 days.
Comparative example 2:
The coal tar pitch (60 DEG C of softening point) that quality accounting is 40% is first heated to 110 DEG C, then with the positive pressure of 0.3MPa
Level-one feed pipe into fluidic device forms fluid 1；The benzene that quality accounting is 60% is entered into jet stream with the positive pressure of 0.3MPa
The secondary feed tube of device forms fluid 2；Two fluids releases stress in the flash vessel of device, mutual turbulent mixture, through penetrating
After flowing the outflow of device slit, because bulking effect generates, sky is quick-fried to be intensified fluid, forms micronized fluid, after flowing out fluidic device, shape
At the mix asphalt base fuel oil of stable and uniform, there is lamination after normal temperature storage 30 days.
Comparative example 3:
The preparation method of this comparative example is substantially the same manner as Example 1, the difference is that only: using in this comparative example by matter
The coal tar pitch (60 DEG C of softening point) that amount accounting is 40% is first heated to 130 DEG C.This method causes production scene a large amount of dense smokes occur,
It pollutes environment and can not implement.
Comparative example 4:
The preparation method of this comparative example is substantially the same manner as Example 1, the difference is that only: using in this comparative example by matter
The coal tar pitch (60 DEG C of softening point) that amount accounting is 40% is first heated to 70 DEG C.Since heating temperature is too low, lead to coal tar pitch excessively
It is sticky, jet stream processing can not be carried out.
Comparative example 5:
The preparation method of this comparative example is substantially the same manner as Example 5, the difference is that only: using natural in this comparative example
The quality accounting of pitch is 70%.Pitch base fuel oil is obtained, there is lamination after normal temperature storage 40 days.
Comparative example 6:
The preparation method of this comparative example is substantially the same manner as Example 5, the difference is that only: bitumen in this comparative example
Fluidic device is entered using the positive pressure of 7MPa.It is excessive to produce noise, easily cause equipment damage.
There are many concrete application approach of the present invention, the above is only a preferred embodiment of the present invention.More than it should be pointed out that
Embodiment is merely to illustrate the present invention, and the protection scope being not intended to restrict the invention.For the common skill of the art
For art personnel, without departing from the principle of the present invention, several improvement can also be made, these improvement also should be regarded as this hair
Bright protection scope.
Claims (8)
1. a kind of method for preparing pitch base fuel oil, which is characterized in that using cavitation reinforcement stream penetrate method by pitch and diluent,
Jet mixing obtains pitch base fuel oil to promotor together.
2. the method according to claim 1 for preparing pitch base fuel oil, which is characterized in that the method specifically include with
Lower step:
Pitch is first heated, then positive pressure enters fluidic device, forms fluid 1；
After promotor is pre-dissolved in diluent, positive pressure enters fluidic device, forms fluid 2；
Releasing stress makes fluid 1 and the mutual turbulent mixture of fluid 2, flows out to get the pitch base fuel oil.
3. the method according to claim 1 or 2 for preparing pitch base fuel oil, which is characterized in that the pitch, dilution
Agent, promotor mass ratio are as follows: 10~60:30~89:0.1~10.
4. the method according to claim 1 or 2 for preparing pitch base fuel oil, which is characterized in that the pitch includes coal
It is one or more in pitch, asphalt, bitumen and shale tar pitch.
5. the method according to claim 1 or 2 for preparing pitch base fuel oil, which is characterized in that the diluent includes
In benzene,toluene,xylene, ethylo benzene, washing oil, carbolineum, white oil, solvent naphtha, ethyl acetate, ethyl alcohol, methanol, butanol and dimethyl ether
It is one or more.
6. the method according to claim 1 or 2 for preparing pitch base fuel oil, which is characterized in that the promotor includes
Dibenzoyl peroxide, tert-butyl hydroperoxide, cyclohexanone peroxide, lauroyl peroxide, oxygen, hydrogen peroxide, azo two
One of isobutyronitrile, azobisisoheptonitrile and ammonium persulfate are a variety of.
7. the method according to claim 2 for preparing pitch base fuel oil, which is characterized in that the pitch is heated to softening
30~60 DEG C on temperature.
8. the method according to claim 2 for preparing pitch base fuel oil, which is characterized in that the pitch with 0.1~
The positive pressure of 5MPa enters fluidic device；The promotor, which is pre-dissolved in after diluent, enters fluidic device with the positive pressure of 0.1~5MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910082858.XA CN109749793B (en) | 2019-01-23 | 2019-01-23 | Method for preparing asphalt-based fuel oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910082858.XA CN109749793B (en) | 2019-01-23 | 2019-01-23 | Method for preparing asphalt-based fuel oil |
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| Publication Number | Publication Date |
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| CN109749793A true CN109749793A (en) | 2019-05-14 |
| CN109749793B CN109749793B (en) | 2020-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910082858.XA Expired - Fee Related CN109749793B (en) | 2019-01-23 | 2019-01-23 | Method for preparing asphalt-based fuel oil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110551537A (en) * | 2019-08-26 | 2019-12-10 | 珠海市三悦石油化工有限公司 | fuel composition containing petroleum asphalt |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1088473A (en) * | 1992-12-25 | 1994-06-29 | 王广武 | Circulating emulsion device for viscous fuel oil |
| US7523603B2 (en) * | 2003-01-22 | 2009-04-28 | Vast Power Portfolio, Llc | Trifluid reactor |
| CN202199276U (en) * | 2011-04-22 | 2012-04-25 | 李天德 | Fuel oil emulsifying device |
| US20120132565A1 (en) * | 2010-11-29 | 2012-05-31 | Exxonmobil Research And Engineering Company | Asphalt oxidation process using liquid jet ejection |
| CN106474948A (en) * | 2015-08-24 | 2017-03-08 | 上海宝钢化工有限公司 | Method for producing fuel oil with high asphalt content |
-
2019
- 2019-01-23 CN CN201910082858.XA patent/CN109749793B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1088473A (en) * | 1992-12-25 | 1994-06-29 | 王广武 | Circulating emulsion device for viscous fuel oil |
| US7523603B2 (en) * | 2003-01-22 | 2009-04-28 | Vast Power Portfolio, Llc | Trifluid reactor |
| US20120132565A1 (en) * | 2010-11-29 | 2012-05-31 | Exxonmobil Research And Engineering Company | Asphalt oxidation process using liquid jet ejection |
| CN202199276U (en) * | 2011-04-22 | 2012-04-25 | 李天德 | Fuel oil emulsifying device |
| CN106474948A (en) * | 2015-08-24 | 2017-03-08 | 上海宝钢化工有限公司 | Method for producing fuel oil with high asphalt content |
Non-Patent Citations (1)
| Title |
|---|
| 左小磊等: "废焦油沥青的回收利用研究", 《环境工程》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110551537A (en) * | 2019-08-26 | 2019-12-10 | 珠海市三悦石油化工有限公司 | fuel composition containing petroleum asphalt |
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