CN101982523A - Washing oil continuous processing method - Google Patents
Washing oil continuous processing method Download PDFInfo
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- CN101982523A CN101982523A CN201010555970XA CN201010555970A CN101982523A CN 101982523 A CN101982523 A CN 101982523A CN 201010555970X A CN201010555970X A CN 201010555970XA CN 201010555970 A CN201010555970 A CN 201010555970A CN 101982523 A CN101982523 A CN 101982523A
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Abstract
The invention discloses a continuous washing oil processing method. Reaction is taken place in four rectifying towers (A, B, C and D) sequentially, raw material washing oil is pumped into a rectifying tower A, naphthalene oil is extracted at the top of tower, methylnaphthalene is extracted at the lateral line, residual oil at the bottom of tower is pumped into a rectifying tower B; middle grade washing oil is extracted at the top of the rectifying tower B, acenaphthene fraction is extracted at the lateral line, crystallization and separation are carried out, thus obtaining industrial acenaphthene, and residual oil at the bottom of tower enters into a rectifying tower C; acenaphthene fraction is extracted at the top of the rectifying tower C again, dibenzofuran fraction is extracted at the lateral line, and residual oil at the bottom of tower is pumped into a rectifying tower D; dibenzofuran fraction is extracted at the top of the rectifying tower D, acenaphthene fraction is extracted at the lateral line, and the acenaphthene fraction is subject to solvent treatment, thus obtaining industrial acenaphthene. The invention has the characteristics of high production capacity, stable product quality and low energy consumption.
Description
Technical field
The invention belongs to and belong to the coal tar wash oil manufacture field, be specially the rectifying working method that coal tar wash oil is produced naphtalene oil, middle matter washing oil, methylnaphthalene, industrial acenaphthylene, industrial fluorenes.
Background technology
Currently used coal tar intermittently washing oil production technique is to be raw material with the coal tar wash oil, and naphtalene oil, middle matter washing oil, methylnaphthalene, industrial acenaphthylene, industrial fluorenes are progressively produced in processing in batch still, with 20M
3Still kettle be example, each raw material that adds need react about 20 days, and then the Residual oil of collecting is added still kettle again carried out rectifying, just can obtain fluorenes, acenaphthene product after several times repeatedly.The shortcoming of this production method is: long reaction time, and power consumption is high; Yield poorly, produce the 1-2 ton every day approximately, production is long period; Unstable product quality, productive rate is low, and the output of fluorenes, acenaphthene is about 50-60%.
Summary of the invention
Technical problem to be solved by this invention provides a kind of energy-conservation, continuous washing oil working method that production efficiency is high.
Address the above problem, technical scheme of the present invention is: a kind of continuous washing oil working method is reflected in 4 groups of rectifying tower (A, B, C, D) and carries out successively, the raw material washing oil enters rectifying tower A by pump, cat head is adopted naphtalene oil, and side line is adopted methylnaphthalene, and tower bottoms enters rectifying tower B by pump; Rectifying tower B cat head is adopted middle matter washing oil, and side line is adopted the acenaphthene cut, separates obtaining industrial acenaphthylene after crystallization, and tower bottoms enters rectifying tower C by pump; Rectifying tower C cat head is adopted the acenaphthene cut once more, and side line is adopted the dibenzofuran cut, and tower bottoms enters rectifying tower D through pump; Rectifying tower D cat head is adopted the dibenzofuran cut, and side line extraction fluorenes cut, fluorenes cut get industrial fluorenes after solvent treatment.
The backflow of each rectifying tower temperature control when can adopt the method for well known to a person skilled in the art to determine, innovative point of the present invention is that the rectifying tower that will use separately originally is together in series, not only realized continuous production, can also make back one rectifying tower utilize the heat of last rectifying tower tower bottoms, reduce energy consumption effectively.
With existing intermittence the washing oil production method compare, the present invention has following beneficial effect:
(1) turnout is big, and a day processing washing oil can reach 20 tons, daily output naphtalene oil 1-2 ton, methylnaphthalene 7-8 ton, industrial acenaphthylene 1.6-1.8 ton, middle matter washing oil 2-2.5 ton, industrial fluorenes 1.8-2 ton.
(2) constant product quality, technical methylnaphthalene methylnaphthalene content 〉=65%, industrial acenaphthylene acenaphthene content 〉=95%, industrial fluorenes fluorenes content 〉=95%.
(3) power consumption is low, because of preceding tower Residual oil as back tower raw material, utilize the sensible heat of tower Residual oil before, energy consumption must reduce, and compares with batch distillation, energy consumption reduces by 30% at least.
Description of drawings
Fig. 1 is the layout drawing that is provided with of the present invention.
Among the figure, at the bottom of the 1-tower; The 2-side line; The 3-cat head.
Embodiment
Below in conjunction with accompanying drawing the present invention is done a step explanation.
A kind of continuous washing oil working method of the present invention is reflected in 4 groups of rectifying tower (A, B, C, D) and carries out successively, and the raw material washing oil enters rectifying tower A by pump, and cat head is adopted naphtalene oil, and side line is adopted methylnaphthalene, and tower bottoms enters rectifying tower B by pump; Rectifying tower B cat head is adopted middle matter washing oil, and side line is adopted the acenaphthene cut, separates obtaining industrial acenaphthylene after crystallization, and tower bottoms enters rectifying tower C by pump; Rectifying tower C cat head is adopted the acenaphthene cut once more, and side line is adopted the dibenzofuran cut, and tower bottoms enters rectifying tower D through pump; Rectifying tower D cat head is adopted the dibenzofuran cut, and side line extraction fluorenes cut, fluorenes cut get industrial fluorenes after solvent treatment.
Fig. 1 realizes the layout of equipment of the present invention, and rectifying tower uses the normally used equipment in this area, and each rectifier bottoms is end to end by pipeline.Rectifier bottoms is equipped with heating installation, by the reflux temperature in 1 the condenser control corresponding column section at the bottom of cat head 3, side line 2 and the tower, makes temperature range in the corresponding tower section corresponding to the boiling point of this section product, and the temperature and the product of each rectifying tower are respectively:
Rectifying tower A
Tower top temperature: 200-220 ℃, product: naphtalene oil;
Side stream temperature: 220-240 ℃, product: methylnaphthalene;
Tower bottoms input rectifying tower B.
Rectifying tower B
Tower top temperature: 240-270 ℃, product: middle matter washing oil;
Side stream temperature: 270-280 ℃, product: acenaphthene cut;
Tower bottoms input rectifying tower C.
Rectifying tower C
Tower top temperature: 270-280 ℃, product: acenaphthene cut (after Crystallization Separation, obtaining the inferior acenaphthene of worker);
Side stream temperature: 280-290 ℃, product: dibenzofuran cut;
Tower bottoms input rectifying tower D.
Rectifying tower D
Tower top temperature: 280-290 ℃, product: dibenzofuran cut;
Side stream temperature: 290-300 ℃, product: fluorenes cut (after Crystallization Separation, obtaining industrial fluorenes).
In order to improve the productive rate of different products in each rectifying tower, the theoretical tray of each rectifying tower is respectively rectifying tower A 40, rectifying tower B 50, rectifying tower C 60, rectifying tower D 70.
Claims (3)
1. continuous washing oil working method, it is characterized in that: be reflected in 4 groups of rectifying tower (A, B, C, D) and carry out successively, the raw material washing oil enters rectifying tower A by pump, and cat head is adopted naphtalene oil, and side line is adopted methylnaphthalene, and tower bottoms enters rectifying tower B by pump; Rectifying tower B cat head is adopted middle matter washing oil, and side line is adopted the acenaphthene cut, separates obtaining industrial acenaphthylene after crystallization, and tower bottoms enters rectifying tower C by pump; Rectifying tower C cat head is adopted the acenaphthene cut once more, and side line is adopted the dibenzofuran cut, and tower bottoms enters rectifying tower D through pump; Rectifying tower D cat head is adopted the dibenzofuran cut, and side line extraction fluorenes cut, fluorenes cut get industrial fluorenes after solvent treatment.
2. continuous washing oil working method according to claim 1, it is characterized in that: the temperature of each rectifying tower is respectively:
Rectifying tower A
Tower top temperature: 200-220 ℃, product: naphtalene oil;
Side stream temperature: 220-240 ℃, product: methylnaphthalene;
Rectifying tower B
Tower top temperature: 240-270 ℃, product: middle matter washing oil;
Side stream temperature: 270-280 ℃, product: acenaphthene cut;
Rectifying tower C
Tower top temperature: 270-280 ℃, product: acenaphthene cut;
Side stream temperature: 280-290 ℃, product: dibenzofuran cut;
Rectifying tower D
Tower top temperature: 280-290 ℃, product: dibenzofuran cut;
Side stream temperature: 290-300 ℃, product: fluorenes cut.
3. continuous washing oil working method according to claim 1 and 2 is characterized in that: the theoretical tray of each rectifying tower is respectively rectifying tower A 40, rectifying tower B 50, rectifying tower C 60, rectifying tower D 70.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010555970 CN101982523B (en) | 2010-11-24 | 2010-11-24 | Washing oil continuous processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010555970 CN101982523B (en) | 2010-11-24 | 2010-11-24 | Washing oil continuous processing method |
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| Publication Number | Publication Date |
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| CN101982523A true CN101982523A (en) | 2011-03-02 |
| CN101982523B CN101982523B (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010555970 Active CN101982523B (en) | 2010-11-24 | 2010-11-24 | Washing oil continuous processing method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102180763A (en) * | 2011-03-17 | 2011-09-14 | 河南宝舜化工科技有限公司 | Method for fractionating industrial acenaphthene during wash oil processing |
| CN102268273A (en) * | 2011-07-18 | 2011-12-07 | 辽宁科技学院 | Deep processing technology for coking wash oil |
| CN102876360A (en) * | 2012-10-17 | 2013-01-16 | 新疆大学 | Device for increasing naphthalene and naphthalene derivative content in washing oil and preparation method of device |
| CN103992199A (en) * | 2014-05-04 | 2014-08-20 | 黄骅市信诺立兴精细化工股份有限公司 | Method for extracting highly pure beta-methylnaphthalene from coal tar wash oil |
| CN107382653A (en) * | 2017-08-28 | 2017-11-24 | 贾海亮 | A kind of efficiently industrial acenaphthylene fractionating device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078991A (en) * | 1992-10-31 | 1993-12-01 | 鞍山钢铁公司 | From coal tar wash oil, extract the technology of naphthalene cut, methylnaphthalene and industrial acenaphthylene |
| CN1208727A (en) * | 1997-08-14 | 1999-02-24 | 攀钢集团煤化工公司 | Continuous distillation technology for coking naphthalene oil fraction |
-
2010
- 2010-11-24 CN CN 201010555970 patent/CN101982523B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078991A (en) * | 1992-10-31 | 1993-12-01 | 鞍山钢铁公司 | From coal tar wash oil, extract the technology of naphthalene cut, methylnaphthalene and industrial acenaphthylene |
| CN1208727A (en) * | 1997-08-14 | 1999-02-24 | 攀钢集团煤化工公司 | Continuous distillation technology for coking naphthalene oil fraction |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102180763A (en) * | 2011-03-17 | 2011-09-14 | 河南宝舜化工科技有限公司 | Method for fractionating industrial acenaphthene during wash oil processing |
| CN102180763B (en) * | 2011-03-17 | 2014-01-29 | 宝舜科技股份有限公司 | Method for fractionating industrial acenaphthene during wash oil processing |
| CN102268273A (en) * | 2011-07-18 | 2011-12-07 | 辽宁科技学院 | Deep processing technology for coking wash oil |
| CN102268273B (en) * | 2011-07-18 | 2013-09-11 | 辽宁科技学院 | Deep processing technology for coking wash oil |
| CN102876360A (en) * | 2012-10-17 | 2013-01-16 | 新疆大学 | Device for increasing naphthalene and naphthalene derivative content in washing oil and preparation method of device |
| CN102876360B (en) * | 2012-10-17 | 2015-08-05 | 新疆大学 | Increase device of naphthalene and its derivative content and preparation method thereof in washing oil |
| CN103992199A (en) * | 2014-05-04 | 2014-08-20 | 黄骅市信诺立兴精细化工股份有限公司 | Method for extracting highly pure beta-methylnaphthalene from coal tar wash oil |
| CN107382653A (en) * | 2017-08-28 | 2017-11-24 | 贾海亮 | A kind of efficiently industrial acenaphthylene fractionating device |
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| Publication number | Publication date |
|---|---|
| CN101982523B (en) | 2013-03-20 |
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