CN108441252B - Cryogenic distillation apparatus - Google Patents
Cryogenic distillation apparatus Download PDFInfo
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- CN108441252B CN108441252B CN201810262250.0A CN201810262250A CN108441252B CN 108441252 B CN108441252 B CN 108441252B CN 201810262250 A CN201810262250 A CN 201810262250A CN 108441252 B CN108441252 B CN 108441252B
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- distillation
- oil
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- pipeline
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- 238000004821 distillation Methods 0.000 title claims abstract description 141
- 239000003921 oil Substances 0.000 claims abstract description 52
- 238000003860 storage Methods 0.000 claims abstract description 15
- 238000005292 vacuum distillation Methods 0.000 claims abstract description 10
- 239000002283 diesel fuel Substances 0.000 claims abstract description 6
- 239000010779 crude oil Substances 0.000 claims description 12
- 238000002485 combustion reaction Methods 0.000 claims description 8
- 238000005086 pumping Methods 0.000 claims description 4
- 239000000295 fuel oil Substances 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000000746 purification Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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Classifications
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- 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
- C10G7/00—Distillation of hydrocarbon oils
- C10G7/12—Controlling or regulating
-
- 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
- C10G53/00—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes
- C10G53/02—Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes plural serial stages only
-
- 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
- C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
- C10G2400/02—Gasoline
-
- 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
- C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
- C10G2400/04—Diesel oil
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- 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)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention discloses low-temperature distillation equipment which comprises a first distillation assembly, a second distillation assembly and a third distillation assembly, wherein each distillation assembly is respectively provided with a distillation still, a distillation tower, a condenser and an oil storage tank, and oil products such as gasoline, light diesel oil, heavy oil and the like are sequentially separated by controlling the temperature of the distillation still in each distillation assembly.
Description
Technical Field
The invention belongs to the technical field of oil refining equipment, and particularly relates to low-temperature distillation equipment.
Background
Compared with foreign crude oil components, the crude oil components in China have higher content of vacuum residue, and the quality of the vacuum residue in the crude oil of most oil fields reaches 40-50 percent. Especially old oil fields, not only the yield is reduced, but also the heavy oil tendency of crude oil is increased. In addition, the degree of external dependence of crude oil in China is high, reaching 75 percent, and the weight ratio is increasingly excited. Therefore, the development of the enhanced distillation technology of crude oil, especially heavy crude oil, to improve the deep processing of heavy oil or heavy crude oil, fully utilize limited petroleum resources, increase the yield of light oil, and improve economic benefits has become an urgent problem to be solved in the petroleum refining industry in China, and is also an important direction for the progress and development of the modern distillation technology of crude oil or heavy crude oil.
Disclosure of Invention
The purpose of the invention is: the low-temperature distillation equipment can effectively improve the yield of light oil and increase the economic benefit of enterprises.
The technical scheme of the invention is as follows: a low-temperature distillation device comprises a first distillation assembly, a second distillation assembly and a third distillation assembly, wherein the first distillation assembly comprises a first distillation kettle, a first distillation tower and a first condenser, an inlet of the first distillation kettle is connected with an oil inlet pipeline, an oil gas outlet of the first distillation kettle is connected with the first distillation tower through a pipeline, an oil gas outlet at the upper part of the first distillation tower is connected with the first condenser through a pipeline, and an outlet of the first condenser is connected with a first storage tank; the second distillation assembly comprises a second distillation kettle, a second distillation tower and a second cooler, wherein an inlet of the second distillation kettle is connected with a bottom oil outlet at the bottom of the first distillation tower through a first oil pump pipeline, an outlet of the second distillation kettle is connected with the second distillation tower through a pipeline, an oil gas outlet at the upper part of the second distillation tower is connected with the second cooler through a pipeline, and an outlet of the second cooler is connected with a second storage tank; the third distillation assembly comprises a third distillation kettle, a third distillation tower and a third cooler, an inlet of the third distillation kettle is connected with a bottom oil outlet at the bottom of the second distillation tower through a second oil pump pipeline, an outlet of the third distillation kettle is connected with the third distillation tower, an oil gas outlet at the upper part of the third distillation tower is connected with the third cooler through a pipeline, and an outlet of the third cooler is connected with a third storage tank.
The first distillation still is provided with a main heating device, and the second distillation still and the third distillation still are connected with the first distillation still through hot air pipelines.
The top of the first distillation kettle is also connected with a tail gas purification device through a tail gas pipeline.
The second distillation still and the third distillation still are respectively connected with a combustion furnace of the first distillation still through non-condensable gas pipelines.
And residual oil outlets are respectively arranged at the bottoms of the first, second and third distillation kettles and are respectively connected with a residual oil treatment device through pumping pipelines.
The low-temperature distillation equipment adopts the third distillation, can effectively decompose the crude oil into light gasoline, light diesel oil and heavy oil products according to different temperature control, has simple integral structure, convenient operation and use and low energy consumption in the working process, can continuously produce for a long time, and has the characteristics of energy conservation, environmental protection and high decomposition efficiency.
Drawings
FIG. 1 is a schematic view of the structure of the cryogenic distillation apparatus of the present invention.
Detailed Description
The low-temperature distillation equipment provided by the invention adopts three-stage distillation operation, and the specific structure is shown in figure 1, and the low-temperature distillation equipment mainly comprises a first distillation assembly, a second distillation assembly and a third distillation assembly, wherein the first distillation assembly comprises a first distillation kettle 1, a first distillation tower 2 and a first condenser 3, the inlet of the first distillation kettle 1 is connected with an oil inlet pipeline 5, the oil gas outlet of the first distillation kettle 1 is connected with the first distillation tower 2 through a pipeline, the oil gas outlet at the upper part of the first distillation tower 2 is connected with the first condenser 3 through a pipeline, and the outlet of the first condenser 3 is connected with a first storage tank 4; the second distillation component comprises a second distillation kettle 7, a second distillation tower 8 and a second cooler 9, wherein the inlet of the second distillation kettle 7 is connected with the bottom oil outlet at the bottom of the first distillation tower 2 through a first oil pump pipeline 6, the outlet of the second distillation kettle 7 is connected with the second distillation tower 8 through a pipeline, the oil gas outlet at the upper part of the second distillation tower 8 is connected with the second cooler 9 through a pipeline, and the outlet of the second cooler 9 is connected with a second storage tank 10; the third distillation assembly comprises a third distillation still 12, a third distillation tower 13 and a third cooler 15, an inlet of the third distillation still 12 is connected with a bottom oil outlet at the bottom of the second distillation tower 8 through a second oil pump pipeline 11, an outlet of the third distillation tower 12 is connected with the third distillation tower 13, an oil gas outlet at the upper part of the third distillation tower 13 is connected with the third cooler 15 through a pipeline, and an outlet of the third cooler 15 is connected with a third storage tank 16.
In the low-temperature distillation equipment, a first distillation kettle 1 is a main heating furnace, a combustion furnace device is arranged on the first distillation kettle 1, and a second distillation kettle 7 and a third distillation kettle 12 are respectively connected with the combustion furnace device of the first distillation kettle 1 through a hot air pipeline 20 so as to realize the heating distillation of oil products.
Further, a tail gas purification device 18 is connected to the top of the first still 1 through a tail gas pipe 17. The tail gas generated by the combustion of the main heating device in the first distillation kettle 1 is sent into a tail gas purification device 18 through a tail gas pipeline 17, and the impurities in the tail gas are removed through a spray tower, so that the standard emission is achieved.
Further, the second still 7 and the third still 12 are connected to the combustion furnace device of the first still 1 through non-condensable gas pipelines, respectively.
In the cryogenic distillation equipment, residual oil outlets are respectively arranged at the bottoms of the first distillation still 1, the second distillation still 7 and the third distillation still 12, and the residual oil outlets are respectively connected with a residual oil treatment device 19 through pumping pipelines 14.
When the low-temperature distillation equipment is produced specifically, the first distillation kettle 1 is heated by a combustion furnace device arranged on the first distillation kettle 1, and the second distillation kettle 7 and the third distillation kettle 12 are respectively heated by a hot air pipeline 20, the temperature of the first distillation kettle 1 is controlled at 110-; the oil product which can not be condensed at the temperature falls into the bottom of the first distillation tower 2, and is pumped into the second distillation kettle 7 through the first oil pump pipeline, the temperature of the second distillation kettle 7 is controlled at 250-260 ℃, at the temperature, the light diesel oil contained in the oil product is separated in the second distillation tower 8 and then enters the second condenser 9, the condensed oil flows into the second storage tank 10, the residual oil falls into the bottom of the second distillation tower 8 and is pumped into the last third distillation kettle 12 through the second oil pump pipeline, the temperature of the third distillation kettle 12 is controlled at 370-390 ℃, the heavy diesel oil is separated out through the third distillation kettle 12 and the third distillation tower 13 at the temperature and is sent into the third storage tank 15, the residual oil which can not be distilled in the first distillation kettle 1, the second distillation kettle 7 and the third distillation kettle 12 is left at the bottom of the furnace, the residual oil is sent into the residual oil treatment device 19 through the pumping pipeline 14 after continuous production for a period of time, further separating out bitumen and other heavy oils.
Claims (4)
1. The crude oil low-temperature distillation equipment is characterized by comprising a first distillation assembly, a second distillation assembly and a third distillation assembly, wherein the first distillation assembly comprises a first distillation kettle, a first distillation tower and a first condenser, an inlet of the first distillation kettle is connected with an oil inlet pipeline, an oil gas outlet of the first distillation kettle is connected with the first distillation tower through a pipeline, an oil gas outlet at the upper part of the first distillation tower is connected with the first condenser through a pipeline, an outlet of the first condenser is connected with a first storage tank, and gasoline is filled in the first storage tank; the first cooler is arranged on one side of the first distillation tower; the second distillation component comprises a second distillation kettle, a second distillation tower and a second cooler, wherein an inlet of the second distillation kettle is connected with a bottom oil outlet at the bottom of the first distillation tower through a first oil pump pipeline, an outlet of the second distillation kettle is connected with the second distillation tower through a pipeline, an oil gas outlet at the upper part of the second distillation tower is connected with the second cooler through a pipeline, an outlet of the second cooler is connected with a second storage tank, and light diesel oil is filled in the second storage tank; the second cooler is arranged on one side of the second distillation tower; the third distillation component comprises a third distillation kettle, a third distillation tower and a third cooler, an inlet of the third distillation kettle is connected with a bottom oil outlet at the bottom of the second distillation tower through a second oil pump pipeline, an outlet of the third distillation kettle is connected with the third distillation tower, an oil gas outlet at the upper part of the third distillation tower is connected with the third cooler through a pipeline, an outlet of the third cooler is connected with a third storage tank, and heavy diesel oil is filled in the third storage tank; the third cooler is arranged on one side of the third distillation tower; a combustion furnace is arranged outside the first distillation kettle, and the second distillation kettle and the third distillation kettle are respectively connected with the combustion furnace of the first distillation kettle through hot air pipelines; the temperature of the first distillation kettle is controlled to be 110-.
2. The cryogenic distillation plant of claim 1 wherein the top of the first still further is connected to a tail gas cleanup unit via a tail gas conduit.
3. The cryogenic distillation apparatus of claim 1 wherein the second still and the third still are further connected to the burner of the first still via non-condensable gas lines, respectively.
4. The cryogenic distillation apparatus of claim 1, wherein the bottoms of the first still, the second still and the third still are respectively provided with a residual oil outlet, and each residual oil outlet is respectively connected with a residual oil treatment device through a pumping pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810262250.0A CN108441252B (en) | 2018-03-28 | 2018-03-28 | Cryogenic distillation apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810262250.0A CN108441252B (en) | 2018-03-28 | 2018-03-28 | Cryogenic distillation apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108441252A CN108441252A (en) | 2018-08-24 |
| CN108441252B true CN108441252B (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810262250.0A Active CN108441252B (en) | 2018-03-28 | 2018-03-28 | Cryogenic distillation apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN108441252B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112920843A (en) * | 2021-01-29 | 2021-06-08 | 淮安星宇再生资源有限公司 | Waste mineral oil recovery and separation device and separation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202849341U (en) * | 2012-10-17 | 2013-04-03 | 商丘亿龙机械设备有限公司 | Waste oil, tyre oil and plastic oil distilling device |
| CN204543615U (en) * | 2015-04-20 | 2015-08-12 | 商丘金蓬实业股份有限公司 | A kind of industrial continuous used oil process distillation equipment |
| CN206334375U (en) * | 2016-12-16 | 2017-07-18 | 树业环保科技股份有限公司 | A kind of polyalcohol recovery system |
| CN206705998U (en) * | 2017-05-03 | 2017-12-05 | 安徽泰达新材料股份有限公司 | A kind of trimellitic anhydride rectifier unit |
| CN208087551U (en) * | 2018-03-29 | 2018-11-13 | 商丘中清环保科技有限公司 | Cryogenic distillation apparatus |
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| CN108441252A (en) | 2018-08-24 |
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Effective date of registration: 20240717 Address after: 476000 meters south of Chumiao Village Committee, Yanlou Group, Chumiao Village, Yanji Township, Suiyang District, Shangqiu City, Henan Province, 500 meters east of the road Patentee after: Shangqiu jinzhongqing Heavy Industry Co.,Ltd. Country or region after: China Address before: 476000 No.1, Fushang Avenue, Shangqiu economic and Technological Development Zone, Henan Province Patentee before: SHANGQIU ZHONGQING ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Country or region before: China |