CN106753497A - A kind of technique for improving tar quality - Google Patents
A kind of technique for improving tar quality Download PDFInfo
- Publication number
- CN106753497A CN106753497A CN201611208084.3A CN201611208084A CN106753497A CN 106753497 A CN106753497 A CN 106753497A CN 201611208084 A CN201611208084 A CN 201611208084A CN 106753497 A CN106753497 A CN 106753497A
- Authority
- CN
- China
- Prior art keywords
- tar
- ammonia water
- knockout drum
- oil
- ammonia
- 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.)
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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
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C1/00—Working-up tar
- C10C1/20—Refining by chemical means inorganic or organic compounds
-
- 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
- C10C1/02—Removal of water
Abstract
A kind of technique for improving tar quality, comprises the following steps：Dosing mouth is provided with the top of dreg scraping trough, medicine-adding bin injects demulsifier, realizes the initial gross separation of ammonia water and tar oil by the first chemical feed pipe, quantitative dosing pump to dosing mouth；Then the ammonia water and tar oil after slagging-off is sent into knockout drum from dreg scraping trough again carries out secondary separation；The cylinder upper lateral wall portions position of knockout drum is provided with 2 way outlets, and a way outlet is used to exporting the ammoniacal liquor after ammonia water and tar oil is separated, and another way outlet ammonia water and tar oil entrance respectively with knockout drum, tar ammonia water separator entrance are connected；The ammonia water and tar oil mixture for entering tar ammonia water separator is carried out into standing separation again, the tar isolated in tar ammonia water separator is recycled after collecting with the tar of knockout drum spiral flood dragon discharge.The present invention is continuously added in knockout drum, and by initial gross separation and the combination application of secondary separation, can effectively control ammonia water and tar oil to emulsify degree, so as to accelerate the separative efficiency of tar and ammoniacal liquor.
Description
Technical field
The present invention relates to a kind of tar recovery method, belong to coking of coal recovery of chemical products field, more particularly to a kind of raising Jiao
The technique of oil quality.
Background technology
In coking of coal byproduct removal process, coke-stove gas feeding is washed into benzene column first, using washing oil to benezene material
Reclaimed, then again by coal gas by the ammoniacal liquor of spray, realized tar recovery and the removal of harmful substance, it is useful to reclaim
Material and removing harmful substance therein, prevent the pollution of the environment.
The recovery process of existing tar, the tar and ammonia water mixture that will usually get off from gas-liquid separator separates,
First feeding dreg scraping trough removes tar slag, then carries out standing separation to ammonia water and tar oil mixture by tar ammonia water separator again.
Tar ammonia fusion is the emulsion produced when a kind of tar mixes with ammoniacal liquor, if can not effectively remove, is easily blocked
Ammonia circulation uses pipeline and nozzle component, causes tar ammonia water separator, washes benzene column leakage.Current treating method, is logical
Cross increases demulsifier in ammonia water and tar oil mixture, to mitigate tar ammonia emulsification degree.Simply in tar ammonia water separator
Although middle addition demulsifier can mitigate tar emulsification degree, effect is limited, can increase tar, ammoniacal liquor stewing process time, nothing
Method actual effect is more fast and efficiently processed, so as to influence tar moisture content and the tar rate of recovery containing naphthalene.
The content of the invention
The present invention provides a kind of technique for improving tar quality, for solving the problems of the prior art.
In order to realize the purpose of the present invention, using following technical scheme：
A kind of technique for improving tar quality, comprises the following steps：
1. the tar and ammonia water mixture that, gas-liquid separator separates are got off, being first fed into dreg scraping trough carries out ammonia water and tar oil
Separated with tar slag, tar slag discharges dreg scraping trough by slag remover；Dosing mouth is provided with the top of dreg scraping trough, medicine-adding bin passes through first
Chemical feed pipe, quantitative dosing pump inject demulsifier to dosing mouth, realize the initial gross separation of ammonia water and tar oil；
2. and then the ammonia water and tar oil after slagging-off is sent into knockout drum from dreg scraping trough again carries out secondary separation, in knockout drum
The cylinder of back taper is provided with, multiple vertical liquid outlets are opened up on cylinder, vertical short tube is installed, on short tube on liquid outlet
Tapered cap is installed at end, and tapered cap lower end is fixed by montant with short tube, and the lower end of cylinder is connected and sets with the inwall of knockout drum
There is tar outlet, multiple shower nozzles are provided with the top of knockout drum, shower nozzle is connected by continuous dosing pump, the second chemical feed pipe and medicine-adding bin
It is logical；Into the tar ammonia in knockout drum sequentially pass through cylinder liquid outlet, between short tube and tapered cap outlet outflow and with
Demulsifier reacts, and tar separates the bottom that knockout drum is pooled to from tar outlet with ammoniacal liquor, then the spiral shell installed by knockout drum bottom
Rotation flood dragon discharge；
3. 2 way outlets, are provided with the cylinder upper lateral wall portions position of knockout drum, a way outlet is used to export ammonia water and tar oil point
Ammoniacal liquor after, another way outlet ammonia water and tar oil entrance respectively with knockout drum, tar ammonia water separator entrance are connected；
4., the ammonia water and tar oil mixture into tar ammonia water separator divide in standing separation, tar ammonia water separator
The tar for separating out is recycled after collecting with the tar of knockout drum spiral flood dragon discharge.
Further to realize the purpose of the present invention, following technical scheme can also be used：
A kind of technique for improving tar quality as described above, the ammoniacal liquor that the tar ammonia water separator is isolated is by circulating
Aqua ammonia pump is divided into three tunnels, and coke oven collecting main circulation sprinkling is delivered to all the way, and delivery pump is installed on pipeline；Another road is through aqueous ammonia pump of high pressure
After pressurization, as the smokeless coal of coke oven；Unnecessary ammoniacal liquor is entered remained ammonia groove by the 3rd tunnel, and supply and discharge is pumped to by remained ammonia
Water.
A kind of technique for improving tar quality as described above, the tar that the tar ammonia water separator is collected with knockout drum
Tar workshop is pumped into using tar to be finished.
A kind of technique for improving tar quality as described above, the short tube is reduced pipe, and a diameter of lower end in its upper end is straight
1/2~3/4 times of footpath.
A kind of technique for improving tar quality as described above, the step 1. described in dreg scraping trough demulsifier addition
Concentration is 50~90ppm；The step 3. described in knockout drum the addition concentration of demulsifier be 300~350ppm.
Beneficial effects of the present invention：
1st, the present invention adds quantitative demulsifier to dreg scraping trough, improves demulsifier and makees with the reaction of ammonia water and tar oil mixture
With, ammonia water and tar oil is realized into initial gross separation, ammonia water and tar oil is sent into knockout drum again then, by the continuous sprinkling in separating pipe top
Demulsifier accelerate ammonia water and tar oil separating rate, cylinder is provided with knockout drum, liquid outlet is opened up on cylinder and is installed
Short tube, installs tapered cap on short tube, therefore, the mixed path of ammonia water and tar oil and demulsifier can be extended, so as to ensure reaction efficiency.
Meanwhile, in order to ensure the mixed effect of demulsifier and ammonia water and tar oil, also it is provided with circulation between the entrance of knockout drum and outlet
Pipeline, the part that middle part mixing can be made poor is back in knockout drum again, to improve mixed effect.
2nd, the ammonia water and tar oil processed by knockout drum is re-fed into carrying out stewing process in ammonia water and tar oil separator, due to this
When, in the presence of demulsifier, the emulsion of ammoniacal liquor and tar is preferably controlled, thus can faster by tar separation
And keep relatively low moisture content.
3rd, the present invention is acted in knockout drum using the demulsifier of continuous addition, and by initial gross separation and secondary separation
Combination application, can effectively control ammonia water and tar oil emulsify degree, so as to accelerate the separative efficiency of tar and ammoniacal liquor, it is ensured that tar
With relatively low moisture content and the mixture rate of recovery containing naphthalene higher.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
Technical scheme is clearly and completely described, it is clear that described embodiment is that a part of the invention is implemented
Example, rather than whole embodiments.
Present embodiment discloses a kind of technique for improving tar quality, comprise the following steps：
1. the tar and ammonia water mixture that, gas-liquid separator separates are got off, being first fed into dreg scraping trough carries out ammonia water and tar oil
Separated with tar slag, tar slag discharges dreg scraping trough by slag remover；Dosing mouth is provided with the top of dreg scraping trough, medicine-adding bin adds by first
Pencil, quantitative dosing pump inject demulsifier to dosing mouth, realize the initial gross separation of ammonia water and tar oil；
2. and then the ammonia water and tar oil after slagging-off is sent into knockout drum from dreg scraping trough again carries out secondary separation, in knockout drum
The cylinder of back taper is provided with, multiple vertical liquid outlets are opened up on cylinder, vertical short tube is installed, on short tube on liquid outlet
Tapered cap is installed at end, and tapered cap lower end is fixed by montant with short tube, and the lower end of cylinder is connected and sets with the inwall of knockout drum
There is tar outlet, multiple shower nozzles are provided with the top of knockout drum, shower nozzle is connected by continuous dosing pump, the second chemical feed pipe and medicine-adding bin
It is logical；Into the tar ammonia in knockout drum sequentially pass through cylinder liquid outlet, between short tube and tapered cap outlet outflow and with
Demulsifier reacts, and tar separates the bottom that knockout drum is pooled to from tar outlet with ammoniacal liquor, then the spiral shell installed by knockout drum bottom
Rotation flood dragon discharge；
3. 2 way outlets, are provided with the cylinder upper lateral wall portions position of knockout drum, a way outlet is used to export ammonia water and tar oil point
Ammoniacal liquor after, another way outlet ammonia water and tar oil entrance respectively with knockout drum, tar ammonia water separator entrance are connected；
4., the ammonia water and tar oil mixture into tar ammonia water separator divide in standing separation, tar ammonia water separator
The tar for separating out is recycled after collecting with the tar of knockout drum spiral flood dragon discharge.
Specifically, the technique of a kind of raising tar quality that the present invention is provided, quantitative demulsifier is added to dreg scraping trough,
The reagentia of demulsifier and ammonia water and tar oil mixture is improved, ammonia water and tar oil initial gross separation is realized into, then again by ammonia water and tar oil
In feeding knockout drum, the separating rate of ammonia water and tar oil is accelerated by the demulsifier of the continuous sprinkling in separating pipe top, set in knockout drum
Cylinder is equipped with, liquid outlet is opened up on cylinder and short tube is installed, tapered cap is installed on short tube, therefore, ammonia water and tar oil can be extended
With the mixed path of demulsifier, so as to ensure reaction efficiency.Meanwhile, in order to ensure the mixed effect of demulsifier and ammonia water and tar oil,
Circulation line also is provided between the entrance of knockout drum and outlet, the middle part poor part of mixing can be made to be back to again point
In tank, to improve mixed effect.The ammonia water and tar oil processed by knockout drum is re-fed into being stood in ammonia water and tar oil separator
Treatment, due to now, in the presence of demulsifier, the emulsion of ammoniacal liquor and tar is preferably controlled, thus can be very fast
By tar separation and keep relatively low moisture content.
Further, in order to improve the utilization ratio of ammoniacal liquor, the ammoniacal liquor that the present embodiment isolates tar ammonia water separator
Three tunnels are divided into by cyclic ammonia water pump, coke oven collecting main circulation sprinkling is delivered to all the way, delivery pump is installed on pipeline；Another road is through high pressure
After aqua ammonia pump pressurization, as the smokeless coal of coke oven；Unnecessary ammoniacal liquor is entered remained ammonia groove by the 3rd tunnel, is pumped by remained ammonia
To water supply and sewage.
Further, the tar that tar ammonia water separator described in the present embodiment is collected with knockout drum is pumped using tar
Enter tar workshop to be finished, to improve the value of tar.
Further, the short tube in the present embodiment in knockout drum uses reduced pipe, a diameter of lower end diameter in its upper end
1/2~3/4 times.It is preferred that it is 1/2 times of lower end diameter to use upper end diameter, it is easy to manufacture, being using the effect of reduced pipe can
To improve the pressure of ammonia water and tar oil outflow, to improve the mixing velocity and effect when being acted on demulsifier, while can also be right
The tar for being attached to upper end of short tube is washed away, it is to avoid blocked.
Further, the addition concentration of demulsifier is 60ppm in step 1. middle dreg scraping trough in the present embodiment；Step is 3.
The addition concentration of demulsifier is 330ppm in middle knockout drum.Demulsifier by the quantitatively amount added in dreg scraping trough of addition pump compared with
It is few, can be emulsified in compacting tar and ammoniacal liquor fusion, while may also be advantageous for tar slag separation；Added in knockout drum larger
The ammonia water and tar oil that is conducive to of concentration is separated, so as to separating effect and efficiency can be improved.
The present invention in knockout drum using the demulsifier effect of continuous addition, and by initial gross separation and secondary separation
Combination application, can effectively control ammonia water and tar oil to emulsify degree, so as to accelerate the separative efficiency of tar and ammoniacal liquor, it is ensured that tar has
There is relatively low moisture content and the mixture rate of recovery containing naphthalene higher.
The technology contents of the not detailed description of the present invention are known technology.
Claims (5)
1. it is a kind of improve tar quality technique, it is characterised in that comprise the following steps：
1. the tar and ammonia water mixture that, gas-liquid separator separates are got off, being first fed into dreg scraping trough carries out ammonia water and tar oil and Jiao
The dregs of fat are separated, and tar slag discharges dreg scraping trough by slag remover；Dosing mouth is provided with the top of dreg scraping trough, the first medicine-adding bin passes through dosing
Pipe, quantitative dosing pump inject demulsifier to dosing mouth, realize the initial gross separation of ammonia water and tar oil；
2. and then the ammonia water and tar oil after slagging-off is sent into knockout drum from dreg scraping trough again carries out secondary separation, is provided with knockout drum
The cylinder of back taper, opens up multiple vertical liquid outlets on cylinder, vertical short tube, upper end of short tube peace are installed on liquid outlet
Dress tapered cap, tapered cap lower end is fixed by montant with short tube, and the lower end of cylinder is connected with the inwall of knockout drum and is provided with Jiao
Oil export, is provided with multiple shower nozzles at the top of knockout drum, and shower nozzle is connected by continuous dosing pump, the second chemical feed pipe with medicine-adding bin；
Into the tar ammonia in knockout drum sequentially pass through cylinder liquid outlet, between short tube and tapered cap outlet outflow and with demulsification
Agent is reacted, and tar separates the bottom that knockout drum is pooled to from tar outlet with ammoniacal liquor, then the spiral flood dragon installed by knockout drum bottom
Dragon discharge；
3. 2 way outlets, are provided with the cylinder upper lateral wall portions position of knockout drum, after a way outlet is used to export ammonia water and tar oil separation
Ammoniacal liquor, another way outlet ammonia water and tar oil entrance respectively with knockout drum, tar ammonia water separator entrance are connected；
4., the ammonia water and tar oil mixture into tar ammonia water separator carries out standing separation, is isolated in tar ammonia water separator
The discharge of tar and knockout drum spiral flood dragon tar collect after recycle.
2. it is according to claim 1 it is a kind of improve tar quality technique, it is characterised in that the tar ammonia water separator
The ammoniacal liquor isolated is divided into three tunnels by cyclic ammonia water pump, and coke oven collecting main circulation sprinkling is delivered to all the way, and delivery pump is installed on pipeline；
After another road is pressurizeed through aqueous ammonia pump of high pressure, as the smokeless coal of coke oven；Unnecessary ammoniacal liquor is entered remained ammonia groove by the 3rd tunnel, by
Remained ammonia is pumped to water supply and sewage.
3. it is according to claim 1 it is a kind of improve tar quality technique, it is characterised in that the tar ammonia water separator
The tar water content collected with knockout drum is pumped into tar workshop with tar and is finished below 3%, then.
4. it is according to claim 1 it is a kind of improve tar quality technique, it is characterised in that the short tube be reduced pipe,
1/2~3/4 times of a diameter of lower end diameter in its upper end.
5. a kind of technique for improving tar quality according to claim 1, it is characterised in that the step 1. middle dreg scraping trough
The addition concentration of interior demulsifier is 50~90ppm；The step 3. in middle knockout drum the addition concentration of demulsifier for 300~
350ppm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611208084.3A CN106753497A (en) | 2016-12-23 | 2016-12-23 | A kind of technique for improving tar quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611208084.3A CN106753497A (en) | 2016-12-23 | 2016-12-23 | A kind of technique for improving tar quality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106753497A true CN106753497A (en) | 2017-05-31 |
Family
ID=58919198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611208084.3A Pending CN106753497A (en) | 2016-12-23 | 2016-12-23 | A kind of technique for improving tar quality |
Country Status (1)
| Country | Link |
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| CN (1) | CN106753497A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107557044A (en) * | 2017-10-24 | 2018-01-09 | 西北大学 | A kind of tar slag recycling treatment process |
Citations (5)
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|---|---|---|---|---|
| CN2868379Y (en) * | 2005-12-13 | 2007-02-14 | 陕西中恒粮油工程技术有限公司 | Mixed solvent phase splitter |
| CN204910874U (en) * | 2015-08-11 | 2015-12-30 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Tar ammonia water separator |
| CN105381648A (en) * | 2015-12-19 | 2016-03-09 | 太原重工股份有限公司 | Tar ammonia separation system and tar ammonia separation method |
| CN205367806U (en) * | 2015-12-25 | 2016-07-06 | 新兴铸管股份有限公司 | Surplus aqueous ammonia removes oil groove |
| CN105753203A (en) * | 2014-12-19 | 2016-07-13 | 中国石油天然气股份有限公司 | Oil sand washing water treatment method |
-
2016
- 2016-12-23 CN CN201611208084.3A patent/CN106753497A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2868379Y (en) * | 2005-12-13 | 2007-02-14 | 陕西中恒粮油工程技术有限公司 | Mixed solvent phase splitter |
| CN105753203A (en) * | 2014-12-19 | 2016-07-13 | 中国石油天然气股份有限公司 | Oil sand washing water treatment method |
| CN204910874U (en) * | 2015-08-11 | 2015-12-30 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Tar ammonia water separator |
| CN105381648A (en) * | 2015-12-19 | 2016-03-09 | 太原重工股份有限公司 | Tar ammonia separation system and tar ammonia separation method |
| CN205367806U (en) * | 2015-12-25 | 2016-07-06 | 新兴铸管股份有限公司 | Surplus aqueous ammonia removes oil groove |
Non-Patent Citations (1)
| Title |
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| 李应海: ""破乳技术在焦化循环氨水除油除渣过程中的应用"", 《煤化工》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107557044A (en) * | 2017-10-24 | 2018-01-09 | 西北大学 | A kind of tar slag recycling treatment process |
| CN107557044B (en) * | 2017-10-24 | 2019-06-07 | 西北大学 | A kind of tar slag recycling treatment process |
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| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20201030 |