CN1122563C - Technological process of regenerating aviation kerosene decoloring white clay grains - Google Patents
Technological process of regenerating aviation kerosene decoloring white clay grains Download PDFInfo
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- CN1122563C CN1122563C CN 01107793 CN01107793A CN1122563C CN 1122563 C CN1122563 C CN 1122563C CN 01107793 CN01107793 CN 01107793 CN 01107793 A CN01107793 A CN 01107793A CN 1122563 C CN1122563 C CN 1122563C
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- regenerative agent
- regenerating
- carclazyte
- clay
- tank
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Abstract
The present invention belongs to the regenerating technology of granular white clay. The technical method uses alcohol as a regenerating agent. After the regenerating agent is pressed into a white clay tank by a pump for flushing and discoloring the granular white clay, the regenerating agent enters into a distilling tower of the regenerating agent. Thus, the regenerating agent is separated from the colorful substances dissolved from the white clay. The regenerating agent is condensed into a liquid state by a condenser on the top of the tower to enter into a refluxing tank. Partial regenerating agent returns to the distilling tower, the other regenerating agent enters into the white clay tank for secondarily flushing and discoloring the while clay, and then the generating agent returns to the distilling tower. Thus, the regenerating agent forms circulation. The regenerating technical method provided by the present invention firstly regenerates the granular white clay and restores the discoloring activity to more than 96%, and the regenerating use can be carried out for a plurality of times (more than four times).
Description
The invention belongs to the regeneration techniques of granular carclazyte, mainly propose a kind of process of regenerating of the coal decoloring white clay grains that navigates.
Because the most of oil field of China has entered the exploitation later stage, oil property is variation day by day, so the color of oil plant production boat coal becomes worse and worse and instability.Most of for this reason oil plant all adopts granular carclazyte to filter the boat coal, to deviate to navigate coal color and improve its colour stability.But because the granular carclazyte poor water resistance can't adopt the regeneration of common hot water or steam, cause a large amount of carclazytes discarded, can't handle contaminated environment.The someone adopts the way processing carclazyte that high temperature cures for this reason, and in the hope of hot water regeneration carclazyte, but poor effect only can be recovered 50%～60% of carclazyte decolouring activity.
Purpose of the present invention promptly is to propose a kind of coal decolouring of navigating with a process of regenerating of material carclazyte, the decolouring activation recovering of inactivation granular carclazyte is reached 96%, thereby the solvent of handling has been avoided discarding of a large amount of granular carclazytes through distilling to recycle.
The process of regenerating of the boat coal decoloring white clay grains that the present invention proposes is: process of the present invention adopts ethanol to handle as regenerative agent and loses the active material carclazyte of decolouring.Regenerative agent is pumped into the clay regeneration jar in the regenerative agent jar, sends into the regenerative agent destilling tower after the carclazyte in the carclazyte regenerating tank is washed decolouring, regenerative agent is separated from the coloring matter that carclazyte dissolves with it; Regenerative agent returns the clay regeneration jar after overhead condenser is condensed into liquid state, contact with carclazyte and to return destilling tower again after it is washed decolouring, after treating the regeneration dosage energy stable circulation in the whole system, can cut off the feeding of regenerative agent storage tank, the regenerative agent temperature in the clay regeneration jar should maintain 50～70 ℃ at this moment; Treat that the regenerative agent color of coming out from the clay regeneration tank top can stop to send into regenerative agent to the clay regeneration jar when being colourless.
The regenerative agent that is distillated by the regenerative agent destilling tower enters return tank of top of the tower after the overhead condenser condensation, the regenerative agent part in the return tank is returned the destilling tower cat head, and a part enters the clay regeneration jar, contacts with carclazyte it is washed decolouring.
Stop to send into regenerative agent to the clay regeneration jar, after promptly the flushing decolouring of carclazyte being finished, the regenerative agent of regenerative agent in the clay regeneration jar and the outflow of destilling tower top is sent into the regenerative agent storage tank, sending into hot gas in the clay regeneration jar dries carclazyte, with cold air carclazyte is cooled off then, used for refining decolouring next time.
Concentration of ethanol is 90～100%.
The regeneration technology of the boat coal decoloring white clay grains that the present invention proposes, regeneration can be more than the decolouring activation recovering to 96% with granular carclazyte first, when regeneration carclazyte activity reduces by half more than 4 times, can discard, carclazyte after solvent reclamation is handled is owing to removed the refuse that flavor is arranged contained on it simultaneously, do not pollute the environment after discarded yet, the solvent of handling can be recycled through distillation, a large amount of granular carclazytes have not only been saved, and significantly reduced environmental pollution, had huge economic benefit and social benefit.
Embodiment:
Accompanying drawing 1 is the process chart of granular carclazyte process of regenerating of the present invention.
With reference to the process chart that provides this process is further specified:
As shown in drawings, the normal temperature regenerative agent is sent into clay regeneration jar 1 from storage tank 3 (using pump), carclazyte in the carclazyte regenerating tank 1 is washed decolouring, come out to enter regenerative agent destilling tower 2 by the clay regeneration jar again, regenerative agent separates from the coloring matter under the carclazyte dissolving with it in regenerative agent destilling tower 2, raffinate is got rid of at the bottom of by tower, regenerative agent is condensed to liquid state through overhead condenser 4 and enters return tank of top of the tower 5, regenerative agent part in the return tank 5 is returned cat head, separate once more, a part is sent into clay regeneration jar 1, carclazyte is washed decolouring again, the coloring matter that washes on the carclazyte returns destilling tower again, treat that the regeneration dosage of (except the regenerative agent storage tank) in the system can keep circulation time, can cut off the feeding of regenerative agent storage tank 3, the regenerative agent that is distillated by destilling tower 2 is kept the circulation of regenerative agent, and the regenerative agent temperature maintenance in this moment clay regeneration jar 1 is at 50～70 ℃.Can stop to clay regeneration jar 1, sending regenerative agent when colourless until the regenerative agent color of coming out range estimation (comparing) with distilled water from clay regeneration jar 1 top.Regenerative agent in the clay regeneration jar 1 is squeezed into regenerative agent storage tank 3 at the bottom of by jar, the regenerative agent that flows out from destilling tower 2 tops is also sent into regenerative agent storage tank 3 simultaneously, treats that regenerative agent in carclazyte jar 1 and the regenerative agent destilling tower 2 all reclaims just to have finished clay regeneration after entering regenerative agent storage tank 3.In clay regeneration jar 1, slowly send into 120 ℃ hot nitrogen 2～4 hours, with the carclazyte heating, drying.Hot nitrogen is being carried the partial regeneration agent secretly and entering the overhead condensation jar after the condenser condenses of distillation cat head, is condensed into liquid regenerative agent and returns regenerative agent storage tank 3, and fixed gas is sent into torch or emptying.With cold nitrogen the carclazyte temperature is reduced to below 100 ℃ then, used for refining decolouring next time.
Among this embodiment, regenerative agent is an ethanol, and concentration is 95%.
Among Fig. 1, right-hand member enters arrow and represents that hot nitrogen enters, and the arrow that the right upper end enters condenser 4 represents that hot nitrogen carries regenerative agent secretly and enter condenser 4.The left side is discharged arrow and is represented nitrogen and fixed gas reduce internal heat torch or emptying, and the bottom is discharged arrow and represented that raffinate discharged by the destilling tower bottom.
The relevant condition of regeneration technology: regenerative agent weight space velocity: 0.2～2h in the clay regeneration jar
-1When promptly no longer in the carclazyte jar, sending into regenerative agent behind the system stability by the regenerative agent storage tank, the regenerative agent temperature: 50～70 ℃, distillation column bottom temperature: should be lower than by refining material initial boiling point (as being 140 ℃ by the initial boiling point of refining boat coal, column bottom temperature should be not more than 125 ℃) below 15 ℃.Distillation cat head regenerative agent condensation temperature: decide (but should be liquid) on regenerative agent temperature in the carclazyte jar.Hot N
2Gas heat time heating time: 2～4 hours, N
2Gas velocity: be advisable not make the granular carclazyte play.
Claims (2)
1, a kind of process of regenerating of the coal decoloring white clay grains that navigates is characterized in that: adopt ethanol as regenerative agent; With regenerative agent in regenerative agent storage tank (3) with being pumped into clay regeneration jar (1), enter regenerative agent destilling tower (2) after the carclazyte in the carclazyte regenerating tank washed decolouring, regenerative agent is separated from the coloring matter that carclazyte dissolves with it; Regenerative agent returns clay regeneration jar (1) after overhead condenser (4) is condensed into liquid state, contact with carclazyte to return destilling tower (2) again after it is washed decolouring, and so regenerative agent forms circulation; After treating the regeneration dosage energy stable circulation in the whole system, can cut off the feeding of regenerative agent storage tank; Regenerative agent temperature in clay regeneration jar this moment (1) should maintain 50～70 ℃; Treat to stop to the clay regeneration jar, sending into regenerative agent when the regenerative agent color of coming out from clay regeneration jar (1) top is colourless; Regenerative agent in the clay regeneration jar (1) and destilling tower top are flowed out and regenerative agent is sent into regenerative agent storage tank (3); Carclazyte in the carclazyte regenerating tank (1) is dried, cooling, used for refining decolouring next time.
2, according to the process of regenerating of the described boat coal of claim 1 decoloring white clay grains, it is characterized in that the regenerative agent that is distillated by regenerative agent destilling tower (2) enters return tank of top of the tower (5) after tower item condenser (4) condensation, regenerative agent part in the return tank (5) is returned the destilling tower cat head, a part enters clay regeneration jar (1), contacts with carclazyte it is washed decolouring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01107793 CN1122563C (en) | 2001-02-17 | 2001-02-17 | Technological process of regenerating aviation kerosene decoloring white clay grains |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01107793 CN1122563C (en) | 2001-02-17 | 2001-02-17 | Technological process of regenerating aviation kerosene decoloring white clay grains |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1370617A CN1370617A (en) | 2002-09-25 |
| CN1122563C true CN1122563C (en) | 2003-10-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01107793 Expired - Fee Related CN1122563C (en) | 2001-02-17 | 2001-02-17 | Technological process of regenerating aviation kerosene decoloring white clay grains |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1122563C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101434853B (en) * | 2008-11-25 | 2012-02-08 | 中国石油大学(华东) | Method for regenerating and recovering oil refining waste clay |
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2001
- 2001-02-17 CN CN 01107793 patent/CN1122563C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1370617A (en) | 2002-09-25 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20031001 Termination date: 20140217 |