CN1464032A - Atmospheric and vacuum distillation - visbreaking integrated process - Google Patents
Atmospheric and vacuum distillation - visbreaking integrated process Download PDFInfo
- Publication number
- CN1464032A CN1464032A CN 02112203 CN02112203A CN1464032A CN 1464032 A CN1464032 A CN 1464032A CN 02112203 CN02112203 CN 02112203 CN 02112203 A CN02112203 A CN 02112203A CN 1464032 A CN1464032 A CN 1464032A
- Authority
- CN
- China
- Prior art keywords
- visbreaking
- vacuum distillation
- atmospheric
- technology
- distillation
- 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.)
- Pending
Links
Abstract
The present invention relates to relates to petroleum processing technology and is especially combined atmosphere and vacuum distillation and viscosity-reducing process for producing asphalt and fuel oil. One oxidizing and viscosity-reducing course is increased after vacuum distillation, and 250# or 180# fuel oil may be produced according to market requirement. In the optimized system, flexible viscosity-reducing starting and shutting technique, combined heat exchange network technique, and three heating furnace combining technique are adopted. The technological scheme is suitable for producing high-quality road asphalt product and fuel oil product optionally.
Description
Technical field atmospheric and vacuum distillation-visbreaking integrated process is an asphalt for high grade road production field novel process, and scheme adopts the dark method of dialling of normal decompression, and can further produce 250 by the oxidation visbreaking according to market demand
#Oil fuel or 180# oil fuel.
Background technology 1, traditional process for preparing asphalt technological line
The Technology of domestic production asphalt for high grade road mainly contains four kinds at present: distillation under vacuum, solvent deasphalting method, shallow degree oxidation style and blending method.
(1) distillation under vacuum
Distillation under vacuum production pitch technology is simple, economical, and it generally produces the low road bitumen of softening temperature.But it is selective to raw material, and the scope of application is narrower.
(2) solvent deasphalting method
The solvent deasphalting method is to utilize the different dissolving poweies of solvent to each component in the residual oil, isolates the deasphalted oil of being rich in stable hydrocarbon and aromatic hydrocarbon from residual oil, obtains to contain colloid and bitum enriched material simultaneously.It generally is applicable to the stock oil of classifications such as paraffinic base, intermediate base, middle paraffinic base.
(3) shallow degree oxidation style
Shallow degree oxidation style is softening temperature is low, penetration degree and the big vacuum residuum of temperature sensitivity, under certain temperature condition, feed an amount of air and carry out oxidizing reaction, the minimizing of aromatic hydrocarbon and the hyperplasia of macromolecule material have been suppressed preferably, also removed simultaneously small-molecule substance, thereby its softening temperature is risen, and penetration degree and temperature sensitivity reduce, to reach bituminous specification index and use properties requirement.It generally is used for the stock oil of classifications such as cycloalkyl, cycloalkanes intermediate base.The asphalt for high grade road that adopts shallow degree oxidation style to produce has advantages such as low-temperature ductility is good, brittle point is low, the wax content colloid is lacked, bituminous matter increases, weather resisteant is strong than the pitch of distillation under vacuum production.
(4) blending method
Thereby matching ratio just can make whole colloidal structure tend to the stable good performance that shows because of four components in the pitch must have preferably, and the composition of high-quality asphalt all has collocation preferably.The blending method be exactly material to some poor performance of pitch by after calling in corresponding component, its character is improved, thereby is obtained the pitch of quality better.
More than four kinds of traditional asphalt production process routes separately relative merits are all arranged, but independent device is set all.
2, traditional fuel oil processing technology routine
At present the Technology of domestic production oil fuel mainly contains three kinds: postpone the tower visbreaking of visbreaking, process furnace formula visbreaking, process furnace-react.
(1) postpones visbreaking
Vacuum residuum directly enters upflowing and postpones the visbreaking jar, and through 3h, it is up-to-standard to make residual oil viscosity reach oil fuel under 370 ℃.
(2) process furnace formula visbreaking
Visbreaking is reflected in the boiler tube and carries out, about 480 ℃ of heater outlet temperatures, and temperature of reaction height and the residence time are short.
(3) the tower visbreaking of process furnace-react
Residual oil carries out in reaction tower, about 450 ℃ of temperature of reaction, and the residence time is longer.
More than three kinds of traditional fuels oil production process route separately relative merits are all arranged, but independent device is set all also.
The method that summary of the invention atmospheric and vacuum distillation-visbreaking COMBINED PROCESS route adopts atmospheric and vacuum distillation to dial is deeply produced asphalt for high grade road, and can further produce 250# or 180# oil fuel by the oxidation visbreaking according to market demand.Atmospheric and vacuum distillation unit and visbreaking unit are integrated, and the integrated artistic flow process is simple, technology maturation, facility investment reduce.
Embodiment atmospheric and vacuum distillation-visbreaking COMBINED PROCESS
1, visbreaking shutting down technology flexibly.This process using atmospheric and vacuum distillation unit and visbreaking unit associating complete processing, raw material, the product of atmospheric and vacuum distillation unit, visbreaking unit are connected mutually, when the ordinary production operating mode, visbreaking unit can be realized shutting down flexibly, and atmospheric and vacuum distillation unit production is steady in the handoff procedure.Production decision is very flexible.
2, atmospheric and vacuum distillation-visbreaking heat exchanger network combined optimization technology.Atmospheric and vacuum distillation unit and visbreaking unit heat exchanger network flow process organically combine, shared one buys or get by illegal means heat supply network network system, utilization HTRI heat transfer software is on the basis of " narrow point " technology of employing, aspects such as the narrow some temperature difference, heat recuperation rate, the whole temperature of heat exchange and facility investment are optimized, thereby obtained optimized heat exchanger network.Utilize normal top oil gas and stock oil heat exchange simultaneously, fully reclaimed low potential temperature heat.The different potential temperatures that utilize the vacuum distillation tower stage casing to reflux, the steam supplying apparatus that 1.0MPa and 0.3Mpa take place respectively is personal.
3, three process furnace United Technologies of atmospheric and vacuum distillation-visbreaking.Atmospheric pressure kiln, vacuum furnace and visbreaking kiln gas combined recovery.Adopt the heat pipe preheated air, to improve the thermo-efficiency of stove, the dew point corrosion problem that removes smoke simultaneously and the consumption of fuel saving.
Claims (1)
- This combination process is refining of petroleum field pitch and oil fuel new process of production.Scheme has adopted atmospheric and vacuum distillation-visbreaking associating complete processing, with stock oil through underpressure distillation direct production asphalt for high grade road, after underpressure distillation, set up oxidation visbreaking flow process, can produce 250# or 180# oil fuel according to the characteristics of market demand and pitch sales season property.Scheme has been used visbreaking shutting down technology, atmospheric and vacuum distillation-visbreaking combination heat exchanger network combined optimization technology, three process furnace United Technologies of atmospheric and vacuum distillation-visbreaking etc. flexibly, and system further is optimized.Atmospheric and vacuum distillation unit and visbreaking unit are integrated, the integrated artistic flow process is simple, technology maturation, facility investment reduce.The scope that this patent is asked for protection comprises visbreaking shutting down technology, atmospheric and vacuum distillation-visbreaking combination heat exchanger network combined optimization technology, three process furnace United Technologies of atmospheric and vacuum distillation-visbreaking flexibly for using the atmospheric and vacuum distillation-visbreaking integrated process of this process program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02112203 CN1464032A (en) | 2002-06-24 | 2002-06-24 | Atmospheric and vacuum distillation - visbreaking integrated process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02112203 CN1464032A (en) | 2002-06-24 | 2002-06-24 | Atmospheric and vacuum distillation - visbreaking integrated process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1464032A true CN1464032A (en) | 2003-12-31 |
Family
ID=29742085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02112203 Pending CN1464032A (en) | 2002-06-24 | 2002-06-24 | Atmospheric and vacuum distillation - visbreaking integrated process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1464032A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104711014A (en) * | 2015-03-11 | 2015-06-17 | 中国海洋石油总公司 | Hard asphalt 20# and preparation method thereof |
| CN113018889A (en) * | 2021-05-28 | 2021-06-25 | 东营联合石化有限责任公司 | Heat exchange device for reflux of middle section of pressure reduction tower |
-
2002
- 2002-06-24 CN CN 02112203 patent/CN1464032A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104711014A (en) * | 2015-03-11 | 2015-06-17 | 中国海洋石油总公司 | Hard asphalt 20# and preparation method thereof |
| CN113018889A (en) * | 2021-05-28 | 2021-06-25 | 东营联合石化有限责任公司 | Heat exchange device for reflux of middle section of pressure reduction tower |
| CN113018889B (en) * | 2021-05-28 | 2021-07-30 | 东营联合石化有限责任公司 | Heat exchange device for reflux of middle section of pressure reduction tower |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1455809A (en) | Asphalt and resin production to integration of solent deasphalting and gasification | |
| CN102786981B (en) | Catalytically cracked oil utilizes novel process | |
| CA2439311A1 (en) | Process for producing a diesel fuel stock from bitumen and synthesis gas | |
| CN104987885B (en) | A kind of Fischer-Tropsch synthesis oil and coal tar are hydrogenated with the technique and device of production national standard oil altogether | |
| CN108998091B (en) | Waste mineral oil regeneration technique | |
| CN105452421A (en) | Method and system for preparing a pipelineable hydrocarbon mixture | |
| CN109517614A (en) | Distillation produces various asphalt Product Process and device in conjunction with extraction phase | |
| CN101575537B (en) | Process for producing light and heavy fuel oil and high-quality asphalt by hydrogenating coal tar at medium and low temperature | |
| CN1464032A (en) | Atmospheric and vacuum distillation - visbreaking integrated process | |
| WO2016176976A1 (en) | Multi-optimised hydrogenation series method, and design method therefor and use thereof | |
| CN209508153U (en) | Distillation produces various asphalt Product Process device in conjunction with extraction phase | |
| CN100532508C (en) | Modifying technique for sulfur-containing fuel oil | |
| CN1142247C (en) | Dalayed coking method of deoiled asphalt | |
| CN101463266A (en) | Viscosity breaking method | |
| CN1295141C (en) | Method for producing synthetic gas by gasifying super-heavy inferior oil mixture | |
| CN101993724B (en) | Hydrogenation combination method for flexibly producing high-quality diesel | |
| CN1069681C (en) | Process for preparing carbon fibre asphalt and acicular petroleum coke simultaneously | |
| CN203845992U (en) | Paraffin base inferior crude oil poly-generation system | |
| CN1357655A (en) | Prepn of petroleum asphalt-base common carbon fiber material | |
| CN105733666A (en) | Treatment method for catalytic cracking oil slurry | |
| CN101724436A (en) | Thermal cracking method for reducing viscosity and condensation point of extra-heavy crude oil | |
| CN108998062A (en) | A kind of method that carbolineum prepares pitch | |
| CN108251143B (en) | Method for preparing asphalt coke by adopting tower bottom asphalt | |
| CN102899075B (en) | Clay refining method with reduced cost for dewaxed oil | |
| CN114479187B (en) | Low-smoke 70A asphalt and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |