CN101209882A - Black pigment water separation and dehydrogenating method - Google Patents
Black pigment water separation and dehydrogenating method Download PDFInfo
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- CN101209882A CN101209882A CNA2006101702613A CN200610170261A CN101209882A CN 101209882 A CN101209882 A CN 101209882A CN A2006101702613 A CNA2006101702613 A CN A2006101702613A CN 200610170261 A CN200610170261 A CN 200610170261A CN 101209882 A CN101209882 A CN 101209882A
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- carbon black
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Abstract
The invention aims at black slurry formed in cleaning gas in high-temperature and high-pressure process and relates to a novel method that a novel and miniature solid-liquid separation hydrocyclone is adopted for primary separating carbon black from water to assist a stripping tower for deamination. Particularly, in the method, separation of carbon black and water is carried out on the black slurry formed from cleaning gas in high-temperature and high-pressure process by the solid-liquid separation hydrocyclone; the separated clear liquid basically without carbon black enters the top of the stripping tower to carry out deamination treatment, then concentrated turbid liquor enters the bottom of the stripping tower; filter pressing process is carried out on the black slurry after deamination, thus realizing the reclaim of carbon black and complete recycle of washing water. The method of the invention effectively solve the block of the stripping tower to ensure that the stripping tower can run effectively and steadily. The invention has the advantages of simple process, low equipment investment, convenient operation management, good deamination effect, etc. The invention realizes the treatment and recycling of black slurry, lowers the consumption of washing water, saves energy and reduces loss and obviously improves the operation environment of carbon black reclaim process, thus having prominent economic benefit, social benefit and environmental benefit. The invention especially applies to the process that adopts open type filter pressing filtration to reclaim carbon black and can meet the requirements of deamination of black slurry and improvement of operation environment.
Description
Technical field
The present invention relates to the novel method of a kind of sooty water separation and deamination, be the sooty water that forms at washing high-temperature high-pressure craft gas specifically, a kind of novel method of stripping tower deamination is assisted in the initial gross separation of adopting new micro solid-liquid separation swirler to carry out carbon black and water.
Background technology
For being that raw material, coal are the large-scale synthetic ammonia and the urea plant of fuel with vacuum residuum, because crude oil, residual oil price increase in recent years, cause the urea production cost to raise, factory's benefit is affected, and the raw material that use cost is cheap is the only way of this class chemical fertilizers production device.The employing de-oiled asphalt is a raw material, can not only reduce the manufacturing cost of urea, and for the final product of solvent deasphalting unit has found good outlet, is the optimal selection away from the large-scale chemical fertilizer production equipment in gas field and colliery.
Adopt after the pitch, because carbon residue, bituminous matter, carbon content increase in the pitch, the soot formation amount also increases thereupon.Soot formation increases, and the ash content that causes being attached on the carbon black ball increases, and ash content has increased the frequency of system jams in the accumulation and the circulation of gasification system.In addition, carbon black is being extracted to the stock oil phase time mutually by petroleum naphtha, former residual oil and carbon black ball remix temperature are about 250 ℃, high like this service temperature is for after the employing de-oiled asphalt, because of viscosity significantly rises, the flasher operational stage changes, the load that petroleum naphtha reclaims will be increased, miscellaneous equipment is (as the sooty water interchanger, pump, degassing tower etc.) ability also can be restricted or occur abrasion, problems such as fouling, in view of the foregoing, our company has selected a cover open type pressure filter filtered and recycled carbon black device for use, replaces former petroleum naphtha recovery system, and can produce the superconduction carbon black, increased overall economic benefit.
Because ammonia-nitrogen content height (ammonia-nitrogen content is up to 3000ppm-4500ppm) in the sooty water, when causing with pressure filter filtered and recycled carbon black if deamination in advance not, denseer ammoniacal liquor taste is with the severe contamination site environment, cause the site operation personnel need wear the face guard operation, had a strong impact on workman's physical and mental health.Therefore, must carry out deamination to this sooty water handles.
The water of total system is recycle, and can not influence the component of sooty water, reduces the sooty utility value.Therefore should not use the chemical process deamination, the present inventor once considered to adopt the ammonia in the packing tower desorb waste water, and then carried out the method that press filtration is handled, but owing to content of carbon black in the waste water is too high, easily stopped up filler, made packing tower to run well.It is preceding with additive methods such as whizzer de-carbons also to attempt deamination, but because of carbon black pellet diameter too little (less than 100nm), also can't solve this difficult problem well.Name is called " production technique of new-type carbon black and equipment " Chinese invention patent CN1034940, name is called the Chinese utility model patent CN2081794 of " carbon black pressure dewatering device ", Chinese invention patent CN1640829 and the name that name is called " sooty water New Method for Processing " is called sooty water Separation and Recovery sooty technology and the equipment that the Chinese invention patent CN1133865A of " a kind of directly separation of produced carbon black flow process and device from gasification washing sooty water " proposes, and all do not consider how deamination and reuse.
The content of invention
The objective of the invention is to propose a kind of novel method of separating to assist the stripping deamination that adopts novel solid-liquid separation swirler to carry out carbon black and water in the sooty water, sooty water separation of cloudy and clear after the separation, clear liquid enters the stripping cat head, turbid liquid enters at the bottom of the stripping tower, can satisfy the requirement of stripping tower to the operation steady in a long-term of sooty water deamination.
In one embodiment, sooty water separates and the method for deamination processing is, adopts the solid-liquid separation swirler to carry out the sooty water initial gross separation, and the sooty water after the initial gross separation will carry out the stripping deamination.
A kind of preferred embodiment, the method that sooty water separates and deamination is handled is, carry out the initial gross separation of carbon black and water in the sooty water behind the washing process gas by the solid-liquid separation swirler, the sooty clear liquid of separating that do not contain enters stripping tower top deamination, the dense carbon black that concentrates out enters at the bottom of the tower, enters follow-up carbon black recovery site after the deamination sooty water mixes and realizes that through press filtration workshop section carbon black reclaims and the washing water reuse.
This kind sooty water deamination New Method for Processing, as shown in Figure 1, containing carbon black concentration is 0.3%-0.8%, ammonia nitrogen concentration is the sooty water 1 of 3000-4500ppm, flow with 3-15t/h enters solid-liquid separation swirler 2, carry out the initial gross separation of carbon black and water by solid-liquid separation swirler 2, the clear liquid of separating does not have carbon black (suspended substance 20-30ppm) substantially, water quality is limpid, the deamination processing is carried out at the top that enters stripping tower 3, the dense carbon black that concentrates out enters the bottom of stripping tower 3, and ammonia nitrogen concentration drops to and enters follow-up carbon black recovery site after deamination sooty water 5 about 400ppm mixes and realize that through press filtration workshop section carbon black reclaims and washing water 100% reuse then.
Method of the present invention has solved the stripping tower latch up phenomenon effectively, has guaranteed that stripping tower can efficient, steady running.Ammonia nitrogen concentration can be dropped to about 400ppm by 4000ppm in the waste water, has improved the filtering operating environment of sooty water effectively.
The present invention has advantages such as flow process is simple, facility investment is few, operational management is convenient, deamination is effective.Realize the carbon black water handling reclamation, reduce the consumption of washing water, energy-saving and cost-reducing, and can significantly improve the operating environment that carbon black reclaims, have tangible economic benefit, social benefit and environmental benefit.Be particularly suitable for adopting open type press filtration filter operation to carry out the technology that carbon black reclaims, can satisfy the sooty water deamination, improve requirements for operation circumstances.
Description of drawings
Accompanying drawing 1 is that sooty water of the present invention separates and deamination processing technological flow figure
1 sooty water, 2 separate swirler, 3 stripping towers, 4 low-pressure steam, 5 deamination sooty waters,
6 discharging gas, 7 sampling points
Embodiment
Embodiment one
With the concentration behind the washing process gas is that 0.33% sooty water carries out separating of carbon black and water by being pumped into the solid-liquid separation swirler, the clear liquid of separating does not contain carbon black substantially, water quality is limpid, the analysis suspended substance is 21ppm, ammonia nitrogen concentration is 4065ppm, this clear liquid enters the top of stripping tower and carries out deamination, ammonia nitrogen concentration in the sampling point 7 places sampling analysis water outlet of stripping tower bottom is 427ppm, the dense carbon black that deamination concentrates out enters the bottom of stripping tower, enters follow-up carbon black recovery site after sooty water mixes and realizes that through press filtration workshop section carbon black reclaims and the washing water reuse.
Embodiment two
With the concentration behind the washing process gas is that 0.5% sooty water carries out separating of carbon black and water by being pumped into the solid-liquid separation swirler, the clear liquid of separating does not contain carbon black substantially, water quality is limpid, the analysis suspended substance is 26ppm, ammonia nitrogen concentration is 3862ppm, this clear liquid enters the top of stripping tower and carries out deamination, ammonia nitrogen concentration in the sampling point 7 places sampling analysis water outlet of stripping tower bottom is 400ppm, the dense carbon black that deamination concentrates out enters the bottom of stripping tower, enters follow-up carbon black recovery site after sooty water mixes and realizes that through press filtration workshop section carbon black reclaims and the washing water reuse.
Embodiment three
With the concentration behind the washing process gas is that 0.79% sooty water carries out separating of carbon black and water by being pumped into the solid-liquid separation swirler, the clear liquid of separating does not contain carbon black substantially, water quality is limpid, the analysis suspended substance is 30ppm, ammonia nitrogen concentration is 3019ppm, this clear liquid enters the top of stripping tower and carries out deamination, ammonia nitrogen concentration in the sampling point 7 places sampling analysis water outlet of stripping tower bottom is 453ppm, the dense carbon black that deamination concentrates out enters the bottom of stripping tower, enters follow-up carbon black recovery site after sooty water mixes and realizes that through press filtration workshop section carbon black reclaims and the washing water reuse.
Claims (2)
1. the method that a sooty water separates and deamination is handled is characterized in that, adopts the solid-liquid separation swirler to carry out the initial gross separation of carbon black and water in the sooty water, carries out the stripping deamination after the sooty water initial gross separation again.
2. the method that sooty water according to claim 1 separates and deamination is handled, it is characterized in that, the sooty clear liquid of separating through the solid-liquid separation swirler that do not contain enters stripping tower top deamination, the dense carbon black that concentrates out enters at the bottom of the tower, enters follow-up carbon black recovery site after the deamination sooty water mixes and realizes that through press filtration workshop section carbon black reclaims and the washing water reuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101702613A CN101209882A (en) | 2006-12-26 | 2006-12-26 | Black pigment water separation and dehydrogenating method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101702613A CN101209882A (en) | 2006-12-26 | 2006-12-26 | Black pigment water separation and dehydrogenating method |
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| CN101209882A true CN101209882A (en) | 2008-07-02 |
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| CNA2006101702613A Pending CN101209882A (en) | 2006-12-26 | 2006-12-26 | Black pigment water separation and dehydrogenating method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106365372A (en) * | 2016-11-11 | 2017-02-01 | 中国五环工程有限公司 | Solid-particle-containing acidic black water treatment method |
| CN110079361A (en) * | 2019-04-12 | 2019-08-02 | 中国寰球工程有限公司 | The method and its equipment of the non-slag gasification production hydrogen-rich synthetic gas of petroleum coke |
| CN110655225A (en) * | 2018-06-28 | 2020-01-07 | 中国石油天然气股份有限公司 | Carbon black water treatment method and carbon black water treatment system |
-
2006
- 2006-12-26 CN CNA2006101702613A patent/CN101209882A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106365372A (en) * | 2016-11-11 | 2017-02-01 | 中国五环工程有限公司 | Solid-particle-containing acidic black water treatment method |
| CN110655225A (en) * | 2018-06-28 | 2020-01-07 | 中国石油天然气股份有限公司 | Carbon black water treatment method and carbon black water treatment system |
| CN110079361A (en) * | 2019-04-12 | 2019-08-02 | 中国寰球工程有限公司 | The method and its equipment of the non-slag gasification production hydrogen-rich synthetic gas of petroleum coke |
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Open date: 20080702 |