CN104762098B - A method of reducing ethylene cracking tar separation loss - Google Patents
A method of reducing ethylene cracking tar separation loss Download PDFInfo
- Publication number
- CN104762098B CN104762098B CN201510073645.2A CN201510073645A CN104762098B CN 104762098 B CN104762098 B CN 104762098B CN 201510073645 A CN201510073645 A CN 201510073645A CN 104762098 B CN104762098 B CN 104762098B
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- CN
- China
- Prior art keywords
- ethylene cracking
- tar
- carbon
- cracking tar
- loss
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- 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.)
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Classifications
-
- 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
- C10C1/00—Working-up tar
- C10C1/04—Working-up tar by distillation
Abstract
The present invention discloses a kind of method of reduction ethylene cracking tar separation loss.This method includes that ethylene cracking tar and carbon ten, which are mixed into tar rectifying column, carries out rectification under vacuum.The present invention uses ten dilute ethylene pyrolysis fuel oil of carbon, and carbon ten enters overhead components after rectification under vacuum detaches, to make tower top group is cooling in time to avoid can significantly reduce the loss of ethylene cracking tar rectifying tower top light component by vacuum pumped with on-condensible gas.
Description
Technical field
The invention belongs to pyrolysis fuel oil separation fields, more particularly to a kind of side of reduction ethylene cracking tar separation loss
Method.
Background technology
Currently, ethylene cracking tar be hydrocarbon cracking production ethylene when byproduct, can be used as fuel oil combustion or
For making carbon black, pitch, China is due to ethylene cracker small scale and builds dispersion, is mainly used for asphalt and is used as
Fuel, only small part imported unit produce carbon black, comprehensive utilization ratio is not high, mainly due to utilizable component in tar compared with
It is more, but its content is all less, and boiling point is sufficiently close to again, relative volatility a=1.1~1.2, more difficult separation, therefore use
Rectification under vacuum, due to complicated components and component is heavier, tower top it is cold after temperature it is higher, the part that cannot be cooled down in time with
On-condensible gas is taken out of, keeps tar separation loss amount big.
Invention content
Present invention aim to address overhead components when existing ethylene cracking tar rectification under vacuum to take away loss by fixed gas
Big problem is measured, a kind of method of reduction ethylene cracking tar separation loss is provided.
Technical solution is as follows used by the present invention realizes above-mentioned purpose：
A method of ethylene cracking tar separation loss is reduced, including, ethylene cracking tar and carbon ten are mixed into
Tar rectifying column carries out rectification under vacuum.
Further, the mass ratio of the ethylene cracking tar and carbon ten is (14-15)：1.
Advantageous effect：The present invention uses ten dilute ethylene pyrolysis fuel oil of carbon, and carbon ten enters tower after rectification under vacuum detaches
Component is pushed up, to make tower top group is cooling in time to avoid can significantly reduce cracking of ethylene coke by vacuum pumped with on-condensible gas
The loss of oil rectifier top light component.
Description of the drawings
Fig. 1 is ethylene cracking tar decompression rectification device.
Specific implementation mode
1 the present invention is described in further details with attached drawing with reference to embodiments.
As shown in Figure 1, compared with existing ethylene cracking tar decompression rectification device, the present invention is the feeding line in tar
The upper feed inlet for increasing a carbon ten.
Commercially available product can be used in ethylene cracking tar and ten raw material of carbon, wherein the light component content of ethylene cracking tar exists
21wt%~23wt%, the light component content of carbon ten is in 91~93wt%.
Embodiment 1
Ethylene cracking tar and carbon ten are with 14:1 mass ratio is mixed into tar rectifying column, rectification under vacuum (tower top pressure-
85Kpa, 195 ~ 199 DEG C, total feed 15t/h, 500 ~ 1000kg/h of regurgitant volume of column bottom temperature), bottom of tower component yield 11.7t/
H, for overhead components through the condensed yield 3.3t/h of overhead condenser, loss should be according to the extraction of theoretical calculation top of tower
3.85t/h, light component loss are 0.55t/h, loss late 14.3%.
Comparative example 1
Ethylene cracking tar enters tar rectifying column, rectification under vacuum (tower top pressure -85Kpa, 195 ~ 199 DEG C of column bottom temperature,
Inlet amount 15t/h, 500 ~ 1000kg/h of regurgitant volume), bottom of tower component yield 12.8t/h, overhead components are condensed through overhead condenser
Yield 2.2t/h afterwards, loss should lose 1.0t/h, loss late according to the extraction of theoretical calculation top of tower in 3.2t/h, light component
It is 31.2%.
Claims (2)
1. a kind of method that overhead components take away loss by fixed gas when reduction ethylene cracking tar rectification under vacuum, including, by second
Alkene pyrolysis fuel oil is mixed into tar rectifying column with carbon ten and carries out rectification under vacuum.
2. according to the method described in claim 1, it is characterized in that, the mass ratio of the ethylene cracking tar and carbon ten is (14-
15)：1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510073645.2A CN104762098B (en) | 2015-02-12 | 2015-02-12 | A method of reducing ethylene cracking tar separation loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510073645.2A CN104762098B (en) | 2015-02-12 | 2015-02-12 | A method of reducing ethylene cracking tar separation loss |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104762098A CN104762098A (en) | 2015-07-08 |
| CN104762098B true CN104762098B (en) | 2018-09-21 |
Family
ID=53644202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510073645.2A Active CN104762098B (en) | 2015-02-12 | 2015-02-12 | A method of reducing ethylene cracking tar separation loss |
Country Status (1)
| Country | Link |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201292325Y (en) * | 2008-05-22 | 2009-08-19 | 天津市大港区兴源化工厂 | Apparatus for producing durol by reforming C10 aromatic hydrocarbon production |
| CN101987968A (en) * | 2010-11-29 | 2011-03-23 | 同济大学 | Method for coal tar pitch hydrocracking lightening reaction technology |
| CN102731238A (en) * | 2012-07-12 | 2012-10-17 | 韩钊武 | Environment-friendly method for extracting biphenyl from washed oil of coal tar |
| CN104046390A (en) * | 2013-03-13 | 2014-09-17 | 中国石油天然气股份有限公司 | Comprehensive utilization processing method of ethylene tar |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1054608A (en) * | 1991-04-23 | 1991-09-18 | 石家庄焦化厂 | Improve the coal tar processing technology of naphthalene concentration degree |
| CN102134500B (en) * | 2011-02-17 | 2013-05-15 | 广东新华粤石化股份有限公司 | Method for extracting naphthalene, 1-methylnaphthalene and 2-methylnaphthalene from ethylene tar |
-
2015
- 2015-02-12 CN CN201510073645.2A patent/CN104762098B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201292325Y (en) * | 2008-05-22 | 2009-08-19 | 天津市大港区兴源化工厂 | Apparatus for producing durol by reforming C10 aromatic hydrocarbon production |
| CN101987968A (en) * | 2010-11-29 | 2011-03-23 | 同济大学 | Method for coal tar pitch hydrocracking lightening reaction technology |
| CN102731238A (en) * | 2012-07-12 | 2012-10-17 | 韩钊武 | Environment-friendly method for extracting biphenyl from washed oil of coal tar |
| CN104046390A (en) * | 2013-03-13 | 2014-09-17 | 中国石油天然气股份有限公司 | Comprehensive utilization processing method of ethylene tar |
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| Publication number | Publication date |
|---|---|
| CN104762098A (en) | 2015-07-08 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20210219 Address after: 834021 No.15 Nanhai Road, Dushanzi District, Karamay City, Xinjiang Uygur Autonomous Region Patentee after: Xinjiang Tianli Petrochemical Co.,Ltd. Address before: 833600 Nanhai Road, Dushanzi District, Karamay, the Xinjiang Uygur Autonomous Region 15 Patentee before: XINJIANG DUSHANZI TIANLI INDUSTRIAL Co.,Ltd. |
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