CN101643658A - Process for producing heavy bitumen and fuel oil - Google Patents
Process for producing heavy bitumen and fuel oil Download PDFInfo
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- CN101643658A CN101643658A CN200810138876A CN200810138876A CN101643658A CN 101643658 A CN101643658 A CN 101643658A CN 200810138876 A CN200810138876 A CN 200810138876A CN 200810138876 A CN200810138876 A CN 200810138876A CN 101643658 A CN101643658 A CN 101643658A
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- heavy bitumen
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Abstract
The invention provides a process for producing heavy bitumen and fuel oil, and belongs to the technical field of oil refining. The process is characterized by adopting assembled process of predistillation, reduced pressure distillation and upflow visbreaking. The process has the advantages of strong adaption on raw materials, more product varieties, investment conservation and the like, and is particularly suitable for producing the heavy bitumen and the fuel oil by Penglai 19-3 crude oil and No.180 heavy oil.
Description
Technical field
The invention belongs to the oil Refining Technologies field, be specifically related to a kind of technology of producing heavy bitumen and oil fuel, the present invention is specially adapted to refinery and produces heavy bitumen and oil fuel with Peng Lai 19-3 crude oil and 180# heavy oil.
Technical background
Along with rapid economic development, the available quantity of light, sweet crude gradually reduce, the ratio of heavy high-sulfur crude oil increases gradually at present, crude oil more inferior processing having become oil refining enterprise the pressing problem that must face.
Current domestic to 180# heavy oil import volume increase and to the reinforcement of former exploration activity in Bohai Sea Gulf and exploitation, make that particularly middle-size and small-size refinery, the refinery quantity of processing 180# heavy oil and Peng Lai, Bohai Sea 19-3 crude oil is more and more many, in order to pursue maximum economic benefits, satisfy environmental regulation, adjust the product mix according to market needs in season, this brings many new problems with regard to the technological design of giving water distilling apparatus, big at 180# heavy oil and Peng Lai, Bohai Sea 19-3 oil density, the characteristics that viscosity is big, how choose different process programs neatly according to different raw materials and season different, requirement is strong to the raw material adaptive faculty, product structure is reasonable, wide in variety, reduced investment, purpose product yield height, remarkable in economical benefits.
Existing distil process is many all to be the single crude oil of processing, flow process is conventional fore-running-normal pressure-decompression or flash distillation-normal pressure-decompression technology, can not satisfy above requirement, because the variation of feedstock property and purpose product is different, just need to explore a kind of new technology and realize said process, adopt fore-running-decompression-upflow visbreaking combination process just can process different crude oil-180# heavy oil and Peng Lai, Bohai Sea 19-3 crude oil with a covering device, simultaneously according to season difference obtain heavy bitumen and oil fuel, reach the purpose of not only deep drawing but also visbreaking, thereby reduce investment outlay and energy consumption.
Summary of the invention
Design a kind of distil process,, can process 180# heavy oil, can process Peng Lai, Bohai Sea 19-3 crude oil again, according to different heavy bitumen or the oil fuel produced in season by fore-running-decompression-upflow visbreaking combination process.
The following technical scheme of the concrete employing of the present invention:
A kind of technology of producing heavy bitumen and oil fuel comprises with crude oil being raw material production heavy bitumen and oil fuel, it is characterized in that, comprises following processing step successively:
1) fore-running operation: when temperature is 75～100 ℃ under the normal pressure, steam the light gasoline fraction in the crude oil;
2) underpressure distillation operation: in vacuum tightness is to distill under 0.8～0.95MPa, until the residual oil boiling point of base product greater than 500 ℃;
3) upflow visbreaking operation: in the reaction tower of plural serial stage, 50～75 ℃ of distillations 3～5 hours.
Described crude oil is a kind of in Peng Lai 19-3 crude oil, the 180# heavy oil.
Described fore-running is made up of following step successively: heat exchange, electric desalting, distillation.
Compare with existing distil process, advantage and beneficial effect that this technology has are:
1) strong to adaptability to raw material, range of product is many, reduced investment
This technology can be processed two kinds of crude oil in a covering device, and can adjust the product mix according to the difference in season, thereby produces heavy traffic paving asphalt and low-viscosity fuel oil, satisfies market demand, reduces investment outlay and production cost remarkable in economical benefits.
2) be provided with fore-running technology, when producing the pitch scheme, reduce the into lighting end of vacuum furnace, reduce vacuum furnace, visbreaking stove and visbreaking separation column load, and crude oil water containing is vaporized at the fore-running cat head, avoid impact, also make the cat head corrosion preposition, reduce the material investment the vacuum distillation tower operational load.
Adopt upflow visbreaking cracking technology when 3) producing the oil fuel scheme, whole process is based on liquid phase reaction, logistics enters from the reaction tower bottom, flow out on top, increased the reaction time of liquid phase, make cracking reaction more abundant, and the small molecule hydrocarbon effusion in time that reaction is generated enter the visbreaking separation column.
4) adopt the low speed pressure-reducing line for oil-transferring, the transfer line thermal expansion amount is absorbed by boiler tube, has reduced transfer line pressure drop and temperature drop, improves extracting rate.
5) in order effectively to utilize heat energy, adopt narrow point analysis technology heat exchanging flow process to carry out optimization design, improve and change the back temperature, cut down the consumption of energy.The part interchanger adopts enhancement of heat transfer measures such as threaded pipe and interpolation thing, improves heat transfer intensity, reduces the table of equipment position, reduces facility investment.
6) vacuum distillation tower adopts dry vacuum distillation technology; The visbreaking separation column adopts little wet type reduced pressure distillation process when producing pitch, adopt dry vacuum distillation technology when producing oil fuel.Vacuum distillation tower and visbreaking separation column all adopt multinomial new technologies such as slotted disc type sparger, radiation formula feeding gas liquid distributor, structured packing, can improve the operating conditions of vacuum distillation tower and visbreaking separation column, and optimizing operation parameters is improved the quality of products.Quenching oil is squeezed into to prevent the tower bottom coke in visbreaking separation column bottom.
7) this technology is after the extra large great achievement of gold (Zhenjiang) pitch limited-liability company comes into operation, and effect is remarkable, realizes oepration at full load, product heavy traffic paving asphalt penetration degree and softening temperature satisfy the heavy-duty road asphalt standard, oil fuel viscosity is qualified, and investment saves 30% than common process, and energy consumption reduces by 15%.
Embodiment
Embodiment
(1) technological principle
The fore-running of this technology mainly is the light gasoline fraction of extracting in the 19-3 crude oil of Peng Lai, the Bohai Sea, and underpressure distillation is the still-process that carries out under negative pressure state, obtains boiling point at the bottom of the tower at the vacuum residuum more than 500 ℃.
The upflow visbreaking cracking is a kind of technology that reduces heavy feed stock viscosity, and the viscosity breaking of this technology mainly is to reduce the fuel oil viscosity of being produced by 180# heavy oil, the upflow visbreaking cracking technology of cascade reaction tower behind employing low temperature long residence time, the process furnace.
(2) technology is formed
Fore-running-decompression-upflow visbreaking combination process is made up of heat exchanging part, electric desalting part, fore-running part-process furnace part, decompression part, upflow visbreaking part, product purification part etc.
Fore-running operation among the present invention, underpressure distillation operation and upflow visbreaking operation all are technique means habitual in the oil refining industry, and key point of the present invention is three's combination.
Claims (3)
1. a technology of producing heavy bitumen and oil fuel comprises with crude oil being raw material production heavy bitumen and oil fuel, it is characterized in that, comprises following processing step successively:
1) fore-running operation: when temperature is 75～100 ℃ under the normal pressure, steam the light gasoline fraction in the crude oil;
2) underpressure distillation operation: in vacuum tightness is to distill under 0.8～0.95MPa, until the residual oil boiling point of base product greater than 500 ℃;
3) upflow visbreaking operation: in the reaction tower of plural serial stage, 50～75 ℃ of distillations 3～5 hours.
2. the technology of production heavy bitumen according to claim 1 and oil fuel is characterized in that, described crude oil is a kind of in Peng Lai 19-3 crude oil, the 180# heavy oil.
3. the technology of production heavy bitumen according to claim 1 and oil fuel is characterized in that, described fore-running is made up of following step successively: heat exchange, electric desalting, distillation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810138876A CN101643658A (en) | 2008-08-08 | 2008-08-08 | Process for producing heavy bitumen and fuel oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810138876A CN101643658A (en) | 2008-08-08 | 2008-08-08 | Process for producing heavy bitumen and fuel oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101643658A true CN101643658A (en) | 2010-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810138876A Pending CN101643658A (en) | 2008-08-08 | 2008-08-08 | Process for producing heavy bitumen and fuel oil |
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| Country | Link |
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| CN (1) | CN101643658A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304382A (en) * | 2011-08-18 | 2012-01-04 | 苏州工业园区大华石油有限公司 | Process for coproducing aromatic oil, asphalt and fuel oil |
| CN103484145A (en) * | 2013-01-10 | 2014-01-01 | 盘锦兴达沥青有限公司 | Differential pressure distillation equipment and processing method |
| CN113046122A (en) * | 2021-03-24 | 2021-06-29 | 淄博科泉新材料科技有限公司 | Process for producing high-grade road asphalt by adopting catalytic cracking slurry oil |
-
2008
- 2008-08-08 CN CN200810138876A patent/CN101643658A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304382A (en) * | 2011-08-18 | 2012-01-04 | 苏州工业园区大华石油有限公司 | Process for coproducing aromatic oil, asphalt and fuel oil |
| CN103484145A (en) * | 2013-01-10 | 2014-01-01 | 盘锦兴达沥青有限公司 | Differential pressure distillation equipment and processing method |
| CN113046122A (en) * | 2021-03-24 | 2021-06-29 | 淄博科泉新材料科技有限公司 | Process for producing high-grade road asphalt by adopting catalytic cracking slurry oil |
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Application publication date: 20100210 |