CN107032317A - A kind of residual oil/full fraction of coal tar polymerisation produces the device and method of carbosphere - Google Patents
A kind of residual oil/full fraction of coal tar polymerisation produces the device and method of carbosphere Download PDFInfo
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- CN107032317A CN107032317A CN201611248105.4A CN201611248105A CN107032317A CN 107032317 A CN107032317 A CN 107032317A CN 201611248105 A CN201611248105 A CN 201611248105A CN 107032317 A CN107032317 A CN 107032317A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/02—Making microcapsules or microballoons
- B01J13/06—Making microcapsules or microballoons by phase separation
- B01J13/14—Polymerisation; cross-linking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/02—Making microcapsules or microballoons
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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
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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
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/30—Particle morphology extending in three dimensions
- C01P2004/32—Spheres
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
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Abstract
The invention discloses the device and method that a kind of residual oil/full fraction of coal tar polymerisation produces carbosphere, belong to oil refining, petrochemical industry, coal chemical technology.Residual oil/coal tar is centrifuged and the method that polymerisation produces the high added value carbosphere and dipping agent bitumen of China's urgent need is carried out after electro-desalting pretreatment by this method, while by-product dry gas, gasoline.The present invention carries out feedstock oil after water removal slagging-off electro-desalting, full cut carries out polymerisation, production China is badly in need of to greatest extent high added value carbosphere and dipping agent bitumen, substantially increase the utilization ratio of feedstock oil, technological process is greatly simplified, product economy is profitable, and the commercial plant investment payback time is short.
Description
Technical field
The invention belongs to refine oil, petrochemical industry, coal chemical technology, and in particular to a kind of polymerization of residual oil/full fraction of coal tar
The device and method of reaction production carbosphere, residual oil/coal tar is specifically centrifuged carried out with after electro-desalting pretreatment
The method that polymerisation produces the high added value carbosphere and dipping agent bitumen of China's urgent need, while by-product dry gas, gasoline.
Background technology
From Honda in 1973 etc. by having carried out separation to pitch so as to since finding micron-sized carbonaceous mesophase spherules, by
In its excellent performance and wide application prospect, carbosphere has obtained the primary study of scientific research personnel.Carbosphere is by graphite
Lamella is constituted in the graphite-structure Disjunct distribution of glass phase, and carbosphere is due to the parallel structure piled up of synusia molecule, again
With it is spherical the characteristics of, sphere diameter is small and is evenly distributed, and these design features make it have high-ratio surface, excellent chemically stable
The performance such as property and heat endurance, becomes many new materials, can such as prepare high-intensity high-density C/C composites, height
Performance liquid chromatography pillar height is than surface-active carbon material, a series of high performance carbon materials such as lithium ion battery negative material.
The currently available Carbon Materials for making negative electrode of lithium ion battery mainly have graphite, pyrolytic carbon, carbon fiber, coke etc..It is multinomial
Result of study shows that the specific capacity of coke is relatively low.Though some pyrolytic carbons or carbon fiber are with higher specific capacity and cycle life,
But preparation technology is usually relatively complex, cost is higher, and for those difficult graphitizations or not graphited pyrolytic carbon or carbon
For fiber, without discharge platform as graphite.
The graphite obtained after carbon microspheres graphitization then has the reversible appearance of discharge and recharge of crystallinity height, good conductivity, material
Amount and efficiency for charge-discharge and the characteristic that operating voltage is all higher, charging/discharging voltage curve is relatively flat, are a kind of better performances
Lithium ion battery negative pole carbon material.Current substantial amounts of lithium ion battery is used as the negative of battery using carbon microspheres graphite-like carbon material
Pole.The powerful battery preparation technology of high-performance is the key of new-energy automobile development, excellent negative material market demand
It is very big.
China's STUDY OF NEEDLE COKE TECHNOLOGY achieves important breakthrough in recent years, has been established well for production heavy caliber ultra-high power graphite electrode
Basis, the country is badly in need of a large amount of dipping agent bitumens and provides auxiliary material for ultra-high power graphite electrode production, and the country does not impregnate also at present
Agent pitch professional production factory.
Become weight with worldwide oil property, deteriorate, and sustained economic development requirement and environmental regulation
Increasingly strict, people are increasing to the demand of light clean fuel, and these require perfect to the progress of existing oil Refining Technologies
And improvement, satisfactory product is produced with minimum cost.
Coal tar be during the dry distillation of coal obtained by a kind of product liquid, can be divided into high temperature coal tar by the temperature of destructive distillation
Oil, medium temperature coal tar and coalite tar, their composition and property have very big difference.In China due to individual enterprise's coal tar
Yield poorly, and produce the enterprise of coal tar and geographically disperse, tar resource, which never has, for a long time obtains fully
Utilize, be used to extracting chemical products except part high temperature coal-tar, it is a small amount of in the light fraction of coalite tar be used to produce engine
Beyond fuel, remaining most of coal tar is all used as heavy oil and low-end product, causes the wasting of resources and environment dirty
Dye.With the development of Chinese large-sized Chemical Industry in recent years, fixed bed, In The Fluidized Bed Coal Gasification Technology and lignite destructive distillation upgrading
Technology is applied in a variety of production processes, and the yield of high temperature coal-tar is consequently increased, because of high temperature coal-tar asphalitine, glue
Matter is more, up to the present, and the processing and utilization of high temperature coal-tar is always a problem.
Existed to coal tar using the method for hydrogenation to produce the technology of chemical products, and will using hydrogen addition technology
The method of coal tar processing into fuel oil also had research in last century, but was limited to technical conditions at that time, technological operation bar
Part needs HTHP, there is no success.In recent years, influenceed and crude charging capacity and working ability by petroleum resources
Limitation, the yield of light-end products far can not meet the market demand, and this provides economic possibility for coal tar hydrorefining.And
The improvement of hydrofining technology constantly improve, catalyst activity, is also provided for engineering feasibility.Current coal tar hydrogenating
Method, wherein：
Chinese invention patent CN1464031A discloses a kind of method that coal tar hydrogenating produces diesel oil.This method description
Mainly coal tar first passes around fractionation, and obtained heavy distillat, not as the raw material of hydrotreating, is to light in coal tar
Matter cut carries out hydrotreating, and due to hydrocracking catalyst is not used, the diesel oil distillate that process is obtained can only be as bavin
The blend component of oil product, and coal tar is not fully utilized, cause the overall yield of light-end products to substantially reduce.
Chinese invention patent CN1464031A discloses a kind of coal tar hydrogenation process and catalyst.The patent requirements are developed
Special special-purpose catalyst, flow is common processing process, and only raw material is modified, and its hydrogenation changes in addition
Contain molecular sieve in matter catalyst, the water generated to coal tar hydrogenating is very sensitive, because the presence of water vapour or water can make
Catalyst is destroyed, and so reduces the service life of catalyst, is seriously destroyed the performance of catalyst and is caused bed
Pressure drop rise, causes device to stop work.
United States Patent (USP) US4,855,037 discloses the catalyst and method of a kind of coal tar hydrogenating processing.This method be by
Coal tar after hydrotreating is used for delayed coking.Hydrogenation technique is the pretreating process appearance as delay coking of coal tar
, the purpose products such as light-end products are not produced directly.And this method is mainly processing mink cell focus, operating pressure is high, investment
It is larger.
Because decompression residuum viscosity is high, it is higher than great, heavy metal and sulfur content and colloid, asphalitine, be directly used in hydrogenation
Cracking or catalytic cracking unit do raw material, there is gasoline and diesel yield is low, and heat energy loss is big, equipment investment height etc. it is unfavorable because
Element.
Patent CN1746265A discloses a kind of processing technology of poor-quality oil catalytic cracking.Inferior oil material is through catalytic cracking
Obtained light diesel fuel cut Returning catalyticing cracking device carries out freshening, and obtained heavy diesel fuel cut carries out solvent extraction, extracts
Heavy aromatics as product, Returning catalyticing cracking device freshening of raffinating oil.The process is not enough filled to crude oil with poor quality lighting
Point, catalytic cracked oil pulp is not made full use of.
Patent CN1093395A discloses a kind of method that utilization high-content wax decompression residuum produces high quality common asphalt.
Decompression residuum is carried out solvent extraction by this method, obtains lube stock and road asphalt, while high carbon residue heavy deasphalted oil is obtained,
The high carbon residue heavy deasphalted oil is subjected to oxidation processes, high quality common asphalt can be obtained.This method is not to decompression slag
Oil carries out sufficiently effective utilize.
CN1382776A discloses the integrated processes of a kind of residual hydrocracking and RFCC.This method is by slag
Oil, slurry oil steaming thing, heavy catalytic cycle oil, optional distillate react institute together as the charging of hydrotreater
Obtain thing to steam after petrol and diesel oil, hydrogenated residue enters catalytic cracking unit, the weight that catalytic cracking is obtained with optional vacuum gas oil (VGO)
Recycle oil returns to hydrogenation plant, can improve catalytic cracking unit gasoline and diesel yield.
CN101434865A discloses a kind of combined technical method.Heavy distillate enters the first hydroconversion reaction zone, generation
Oil enters the second hydrotreating reaction area, generation oil together through the isolated gas of high pressure and liquid with liquid after gas sweetening
Through the isolated gas of high pressure knockout drum and liquid, gas returns to the first hydrotreating reaction area, and mink cell focus enters catalytic cracking
Device obtains light oil and recycle oil, and recycle oil returns to catalytic cracking or hydrotreater.
CN102041095A discloses a kind of combined technical method.Residual oil raw material carries out hydrogenation reaction, reaction outflow first
Thing gas-liquid separation, gas phase is circulated for hydrogenation reaction, and liquid phase is not fractionated into being directly entered catalytic cracking unit；Catalytic cracking reaction
Effluent isolates dry gas, liquefied gas, catalytically cracked gasoline cut, diesel oil distillate Returning catalyticing cracking device, recycle oil and oil
Slurry returns to residual hydrogenation equipment.
Above-mentioned hydrotreating and catalytic cracking combined technique have that yield of gasoline is low, and heat energy loss is big, equipment investment height etc.
Unfavorable factor.
Therefore, this area is in the urgent need to the utilization ratio for finding an a kind of new residual oil/coal tar is high, added value is high
Method, thus for residual oil/coal tar it is comprehensive using a kind of feasible scheme is provided to improve the utilization rate of resource.
The content of the invention
It is polymerize it is an object of the invention to provide one kind by centrifuging with after electro-desalting pretreatment residual oil/coal tar
High added value carbosphere and the method for dipping agent bitumen that reaction production China is badly in need of, while by-product dry gas, gasoline, can be maximum
Amount production carbosphere and dipping agent bitumen, simplification of flowsheet, the overall energy consumption of reduction.
The purpose of the present invention can be achieved through the following technical solutions：
The method that a kind of residual oil/full fraction of coal tar polymerisation produces carbosphere, this method comprises the following steps：
(1) feedstock oil after preheating is removed into waste water and waste residue by way of centrifugation, be delivered to afterwards in electrical desalter
Carry out desalination, dehydration, de- solid；
(2) feedstock oil and carbon black after step (1) electro-desalting enters polymer reactor after mixing, and enters under the protection of nitrogen
Row reaction, the gas that reaction is produced after terminating is discharged from top, and the product liquid of generation, which is discharged in stainless steel, adds solvent simultaneously
Natural cooling；
(3) step (2) the addition mixed polymerisation liquid product of solvent is centrifuged, the solid phase production after separation
Thing is purged successively through washing, and classification obtains carbosphere, and the liquid product after separation is dipping agent bitumen.
Feedstock oil in the step of technical solution of the present invention (1) be reduced crude, decompression residuum, wax tailings, in low height
One kind or mixture in warm coal tar, mink cell focus.
The electric desalting water that electrical desalter is used in the step of technical solution of the present invention (1) is demineralized water, the note of electrical desalter
Water is 1~10wt%.
The demulsifier that electrical desalter is used in the step of technical solution of the present invention (1) is phenolic resin, expoxy propane and ring
The block copolymer of oxidative ethane makees demulsifier, demulsifier is made into the 0.2~1wt% aqueous solution, the injection rate of demulsifier is 1
~10 μ g/g.
0.5~3.0MPa of operating pressure of electrical desalter in the step of technical solution of the present invention (1), operation temperature 50~
200℃。
As preferred：Electrical desalter in step (1) includes one-level electrical desalter and two grades of electrical desalters；One-level electro-desalting
The water injection rate of tank is 1~4wt%, and the water injection rate of two grades of electrical desalters is 2~5wt%；The operating pressure of one-level electrical desalter
1.0~3.0MPa, 80~200 DEG C of operation temperature, 0.8~2.5MPa of operating pressure of two grades of electrical desalters, operation temperature 70~
180℃。
The mass ratio of carbon black and the feedstock oil after electro-desalting is 1~50 in the step of technical solution of the present invention (2)：50~
99, the reaction pressure of polymer reactor is 15~30MPa, in N2Protection under be warming up to 100~550 DEG C, the temperature rise period stirs
The time is mixed for 1~2 hour, 600~1200 DEG C are warming up to afterwards, continues to stir 1~2 hour.
Solvent is mixing C5 solvents in the step of technical solution of the present invention (2), in C5 the content of pentane for 20~
90wt%.
The solid product washing of centrifugal separator described in the step of technical solution of the present invention (3) uses deionized water,
Electrical conductivity is less than 0.056us/cm, and purge gas is N2, carbosphere particle diameter after classification is 8~25um, the high income of carbosphere,
45~70wt% can be reached, needle penetration is 40~140 (0.1mm) during 25 DEG C of centrifuge separation liquid product dipping agent bitumen, soft
It is 40~55 DEG C to change point, ductility ＞ 150cm at 15 DEG C, can be used as the raw material for producing needle coke.
A kind of residual oil/full fraction of coal tar polymerisation produces the device of carbosphere, and the device includes preheater, feedstock oil
Output channel be connected with preheater, the output end of described preheater is connected with electrical desalter, the output end of electrical desalter with
Polymer reactor is connected, and the output end on the polymer reactor top is connected with condenser, the output end of polymer reactor bottom
Be connected with blender, the output end of blender is connected with centrifuge, the output end of centrifuge successively with water washing device, blow device
It is connected with grading plant.
Beneficial effects of the present invention：
(1) present invention carries out feedstock oil after water removal slagging-off electro-desalting, and full cut carries out polymerisation, gives birth to greatest extent
High added value carbosphere and dipping agent bitumen that China is badly in need of are produced, the utilization ratio of feedstock oil is substantially increased, technological process is big
Big to simplify, product economy is profitable, and the commercial plant investment payback time is short.
(2) a certain amount of carbon black is added in the polymerization, is conducive to the progress of polymerisation, reduces the reaction time, always
Reaction time is no more than 4 hours, is conducive to the formation of carbosphere, makes the carbosphere particle diameter distribution of generation uniform.
(3) polymeric reaction product adds mixing C5 solvents, dissolves unreacted colloid, asphalitine, it is ensured that carbosphere
Yield and product quality, the yield of carbosphere can reach 40~60wt%, be not only easy to be well mixed with mixing C5 solvent agent, together
When ensure to produce the quality of dipping agent bitumen pitch, also solve topic between pitch softening point height, difficulty of transportation etc..
Brief description of the drawings
Fig. 1 is that a kind of technological process of the method for residual oil of the invention/full fraction of coal tar polymerisation production carbosphere is shown
It is intended to.
Wherein, 1- feedstock oils, 2- pretreatment heaters, the sleeping spiral shell centrifugal separators of 3-, 4- oily waste waters and waste residue, 5- slagging-off
Feedstock oil afterwards, 6- one-level electrical desalters, bis- grades of electrical desalters of 7-, 8- one-level electric desalting waters, 9- one-levels note demulsifier, bis- grades of 10-
Note demulsifier, 11- sewage, 12- water injecting pumps, bis- grades of electric desalting waters of 13-, feedstock oil after 14- electro-desalting, 15- carbon blacks, 16- nitrogen,
17- polymer reactors, 18- polymer reactor upper gas, 19- polymerisation liquid products, 20- condensers, 21- gasoline is collected
Tank, 22- dry gas, 23- gasoline, 24- stainless steels, 25-C5 solvents, 26- adds solvent post-polymerization product, 27- centrifugations
Machine, 28- dipping agent bitumens, 29- solid products, 30- water washing devices, 31- blow devices, 32- grading plants, 33- carbospheres.
Embodiment
With reference to embodiment, the present invention will be further described, but protection scope of the present invention not limited to this：
As shown in figure 1, a kind of residual oil/full fraction of coal tar polymerisation produces the device of carbosphere, the device includes pre-
Hot device, the output channel of feedstock oil is connected with preheater, and the output end of described preheater is connected with electrical desalter, electrical desalter
Output end be connected with polymer reactor, the output end on the polymer reactor top is connected with condenser, polymer reactor bottom
The output end in portion is connected with blender, and the output end of blender is connected with centrifuge, and the output end of centrifuge is filled with washing successively
Put, blow device is connected with grading plant.
After the preprocessed heater 2 of feedstock oil 1 that the external world comes is heated, into sleeping spiral shell centrifugal separator 3, oily waste water is removed
And waste residue 4, the feedstock oil 5 after processing is into one-level electrical desalter 6, two grades of electrical desalters 7, and one-level electric desalting water 8 first injects two
Level electrical desalter 7, then two grades of electric desalting waters 13 from two grades of electrical desalters 7 out are de- into one-level electricity by water injecting pump 12
Salt cellar 6, one-level note demulsifier 9 and two grades of note demulsifiers 10 are injected separately into one-level electrical desalter 6 and two grades of electrical desalters 7, dirty
Water 11 is discharged from one-level electrical desalter 6, and feedstock oil 14 and a certain amount of carbon black 15 enter polymerisation after mixing after electro-desalting
Device 17, under the protection of nitrogen 16, temperature is gradually risen under the conditions of certain pressure, after stirring certain time, reaction is increased to
Temperature, continues to stir after certain time, reaction is completed, the reacted device top discharge of the gas 18 that polymer reactor is produced, and passes through
The condensation of condenser 20 is collected into gasoline collecting tank 21, and dry gas 22 is discharged to gas ductwork, polymerisation at the top of the collecting tank of gasoline 23
The product liquid 19 of device is discharged in stainless steel 24, adds C5 solvents 25 and natural cooling；Add the mixed polymerization of solvent anti-
Product liquid 26 is answered to be separated through centrifuge 27, the solid product 29 after separation is through water washing device 30, blow device 31, grading plant
32, carbosphere 33 is obtained, the liquid product after centrifugation is dipping agent bitumen 28.
A kind of residual oil/full fraction of coal tar polymerisation produces the process of carbosphere, by feedstock oil (mink cell focus, often
Pressure residual oil, decompression residuum, wax tailings, in one kind in low high temperature coal-tar or mixture) preprocessed heater is heated to
Enter sleeping spiral shell centrifugal separator after 150 DEG C, remove oily waste water and waste residue, the feedstock oil after processing enters two grades of electrical desalters,
Inject a certain amount of electric desalting water and demulsifier carries out desalination, dehydration, de- solid, the operating condition of electro-desalting is shown in Table 2.
Enter polymer reactor, the matter of carbon black and the feedstock oil after electro-desalting after feedstock oil and carbon black mixing after electro-desalting
Amount is than being 25：75.In N2Protection under, (gauge pressure) be 18MPa under the conditions of gradually rise temperature to 240 DEG C, stir 1.5 hours
Afterwards, 660 DEG C of reaction temperature is increased to, is continued after stirring 1.5 hours, reaction is completed, the gas that polymer reactor is produced is reacted
It is changed into liquid by condenser condensation after the discharge of device top, and the catalytic cracking oil gas mixing of catalytic cracking unit generation, as
Catalytically cracked gasoline product is used, and the product liquid of polymer reactor, which is discharged in stainless steel, adds C5 solvents and natural cooling,
Wherein the content of pentane is 40wt%；Add the mixed polymerisation liquid product of C5 solvents to separate through centrifuge, separate
Solid product afterwards is washed through electrical conductivity for 0.051us/cm deionized water, N2Purging, classification, obtains carbosphere, carbosphere
Particle diameter is 8~25um, and liquid product after separation is dipping agent bitumen, and needle penetration is 40~140 during 25 DEG C of dipping agent bitumen
(0.1mm), softening point is 40~55 DEG C, ductility ＞ 150cm at 15 DEG C, can be used as the raw material for producing needle coke.
The property of feedstock oil is shown in Table 1, and the operating condition of electro-desalting is shown in Table 2, and product distribution is shown in Table 3, the property of dipping agent bitumen
Matter is shown in Table 4, and gasoline property is shown in Table 5.
The raw material oil nature of table 1
| 20 DEG C of density, g/cm3 | 1.06 |
| S contents, m% | 6.01 |
| N content, m% | 0.78 |
| Carbon residue, m% | 24.74 |
| Metal (Ni+V), μ g/g | 487 |
| H/C | 1.43 |
| Saturation point, m% | 7.80 |
| Fragrance point, m% | 41.52 |
| Colloid, m% | 32.60 |
| Asphalitine, m% | 18.09 |
The electro-desalting operating condition of table 2
| Sequence number | Project | Unit | Numerical value |
| 1 | Feedstock oil enters unit temp | ℃ | 150 |
| 2 | Feedstock oil enters device pressure | MPa(G) | 1.6 (raw oil pump is located at tank field) |
| 3 | Electro-desalting operation temperature | ℃ | 140/ 2 grade 130 of one-level |
| 4 | Electro-desalting operating pressure | MPa(G) | 1.4/ 2 grade 1.2 of one-level |
| 5 | Electro-desalting water injection rate | Wt% | 2/ 2 grade 5 of one-level |
| 6 | Electro-desalting note demulsification dosage | μg/g | 3/ 2 grade 2.5 of one-level |
The product of table 3 is distributed
| Embodiment, wt% | |
| Carbosphere | 57.6 |
| Dipping agent bitumen (is free of C5 solvents) | 15.7 |
| Dry gas | 4.3 |
| Gasoline | 22.4 |
| It is total | 100 |
The dipping agent bitumen property of table 4
| Embodiment 1 | |
| Needle penetration (25 DEG C), 0.1mm | 87 |
| Ductility (15 DEG C), cm | >150 |
| Softening point, DEG C | 50 |
The gasoline property of table 5
| Product | Gasoline |
| 20 DEG C of density, kg/m-3 | 0.740 |
| S, μ g/g | 15 |
| N, μ g/g | 5 |
| Condensation point, DEG C | |
| Cetane number | |
| RON | 93 |
Claims (10)
1. the method that a kind of residual oil/full fraction of coal tar polymerisation produces carbosphere, it is characterised in that：This method includes following
Step：
(1) feedstock oil after preheating is removed into waste water and waste residue by way of centrifugation, is delivered in electrical desalter and carries out afterwards
Desalination, dehydration, de- solid；
(2) feedstock oil and carbon black after step (1) electro-desalting enters polymer reactor after mixing, and is carried out under the protection of nitrogen anti-
Should, the gas that reaction is produced after terminating is discharged from top, and the product liquid of generation, which is discharged in stainless steel, adds solvent and natural
Cooling；
(3) by step (2) addition the mixed polymerisation liquid product of solvent be centrifuged, the solid product after separation according to
Secondary to be purged through washing, classification obtains carbosphere, and the liquid product after separation is dipping agent bitumen.
2. a kind of residual oil according to claim 1/full fraction of coal tar polymerisation produces the method for carbosphere, its feature
It is：Feedstock oil in step (1) be reduced crude, decompression residuum, wax tailings, in low high temperature coal-tar, mink cell focus
A kind of or mixture.
3. a kind of residual oil according to claim 1/full fraction of coal tar polymerisation produces the method for carbosphere, its feature
It is：The electric desalting water that electrical desalter in step (1) is used is demineralized water, and the water injection rate of electrical desalter is 1~10wt%.
4. a kind of residual oil according to claim 1/full fraction of coal tar polymerisation produces the method for carbosphere, its feature
It is：The demulsifier that electrical desalter in step (1) is used is the block copolymer of phenolic resin, expoxy propane and oxirane
Make demulsifier, demulsifier is made into the 0.2~1wt% aqueous solution, the injection rate of demulsifier is 1~10 μ g/g.
5. a kind of residual oil according to claim 1/full fraction of coal tar polymerisation produces the method for carbosphere, its feature
It is：0.5~3.0MPa of operating pressure of electrical desalter in step (1), 50~200 DEG C of operation temperature.
6. a kind of residual oil according to claim 1/full fraction of coal tar polymerisation produces the method for carbosphere, its feature
It is：The mass ratio of carbon black in step (2) and the feedstock oil after electro-desalting is 1~50：50~99, the reaction of polymer reactor
Pressure is 15~30MPa, in N2Protection under be warming up to 100~550 DEG C, the mixing time of temperature rise period is 1~2 hour, it
After be warming up to 600~1200 DEG C, continue to stir 1~2 hour.
7. a kind of residual oil according to claim 1/full fraction of coal tar polymerisation produces the method for carbosphere, its feature
It is：Solvent is that the content of pentane in mixing C5 solvents, C5 is 20~90wt% in step (2).
8. a kind of residual oil according to claim 1/full fraction of coal tar polymerisation produces the method for carbosphere, its feature
It is：Carbosphere particle diameter after being classified in step (3) is 8~25um.
9. a kind of residual oil according to claim 1/full fraction of coal tar polymerisation produces the method for carbosphere, its feature
It is：Electrical desalter in step (1) includes one-level electrical desalter and two grades of electrical desalters；The water injection rate of one-level electrical desalter is
1~4wt%, the water injection rate of two grades of electrical desalters is 2~5wt%；1.0~3.0MPa of operating pressure of one-level electrical desalter, behaviour
Make 80~200 DEG C of temperature, 0.8~2.5MPa of operating pressure of two grades of electrical desalters, 70~180 DEG C of operation temperature.
10. a kind of residual oil/full fraction of coal tar polymerisation produces the device of carbosphere, it is characterised in that：The device includes pre-
Hot device, the output channel of feedstock oil is connected with preheater, and the output end of described preheater is connected with electrical desalter, electrical desalter
Output end be connected with polymer reactor, the output end on the polymer reactor top is connected with condenser, polymer reactor bottom
The output end in portion is connected with blender, and the output end of blender is connected with centrifuge, and the output end of centrifuge is filled with washing successively
Put, blow device is connected with grading plant.
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| CN201611248105.4A CN107032317A (en) | 2016-12-29 | 2016-12-29 | A kind of residual oil/full fraction of coal tar polymerisation produces the device and method of carbosphere |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110317622A (en) * | 2019-08-08 | 2019-10-11 | 平顶山东晟高科实业有限公司 | A kind of preparation method of the dedicated high softening point bitumen of negative electrode material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110317622A (en) * | 2019-08-08 | 2019-10-11 | 平顶山东晟高科实业有限公司 | A kind of preparation method of the dedicated high softening point bitumen of negative electrode material |
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