CN108485317A - A kind of processing method of natural gas acetylene coproduction carbon black - Google Patents
A kind of processing method of natural gas acetylene coproduction carbon black Download PDFInfo
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- CN108485317A CN108485317A CN201810317720.9A CN201810317720A CN108485317A CN 108485317 A CN108485317 A CN 108485317A CN 201810317720 A CN201810317720 A CN 201810317720A CN 108485317 A CN108485317 A CN 108485317A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/44—Carbon
- C09C1/48—Carbon black
- C09C1/487—Separation; Recovery
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/44—Carbon
- C09C1/48—Carbon black
- C09C1/56—Treatment of carbon black ; Purification
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- Organic Chemistry (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of processing methods of natural gas acetylene coproduction carbon black, are related to industrial solid wastes processing technology field, which includes the following steps：The acetylene of generation is passed through carbon black separator with carbon black mixed flue gas to detach after cooling, obtain hydrocarbon black powder, then to being washed by the gas phase after carbon black separator, obtain carbon black slurry, and carbon black slurry is dried, obtain carbon black powder, then carbon black powder is sent into annealing device and is modified processing, obtain carbon black semi-finished product, classification, gas solid separation, granulating and forming, storage are crushed after carbon black semi-finished product are mixed with hydrocarbon black powder again successively, you can carbon black finished product is made.The processing method of the present invention, can greatly improve the internal performance of carbon black, and expand carbon black utilizes field, to be greatly improved the economic value of carbon black, while the effective utilization again for realizing waste, reduce environmental pollution.
Description
Technical field
The present invention relates to industrial solid wastes processing technology field, the charcoal of especially a kind of by-product in natural gas acetylene
Black recovery and treatment method.
Background technology
Currently, when manufacturing acetylene as raw material using natural gas, by-product carbon black can be generated simultaneously, yield can be usually reached second
The 4% of alkynes product, the factory that acetylene yield is 200,000 tons/year will 8000 tons/year of by-product carbon black.For the charcoal of by-product
Black, conventional process mode is detached with acetylene after washing using the technique for washing acetylene and carbon black mixed flue gas, carbon black, is formed black
Color pasty material, i.e. sooty water；In reality, the sooty water of formation is not pocessed direct emission by some, and this measure is to environment
It destroys very big；And although what is had is provided with carbon black water treatment facilities, is separated from the water part carbon black by the device, removes,
Then by the carbon black isolated after press filtration, drying, at cake, block, powdery, but finally obtained carbon black water content is typically up to
20%~80%, there are few utility value, general way is directly to fill or carry out burning disposal it on the spot, and due to it
Yield is big, to greatly polluted environment, becomes the environmental issue that factory must face, while this processing mode is also one
Waste of the kind to carbon black resource.
It is above-mentioned in order to solve the problems, such as, the commercial exploitation of product carbon in natural gas acetylene is improved, simultaneously
It reduces environmental pollution, the example for carrying out advanced treating to the sooty water obtained after washing exists in the prior art, for example, patent is public
The number of opening be CN104860492B Chinese patent " processing method and system of acetylene product carbon mud ", processing method include with
Lower step：(1) level-one is dried：Heat drying charcoal black mud to its water content is less than 45%；(2) wet granulation：Level-one is dried
Rear charcoal black mud, granulation aid and except organic greasy dirt auxiliary agent is according to mass ratio 1000: (5~10): the ratio mixing of (4~5) is thrown
Enter to be granulated in comminutor and obtain graininess carbon black, wherein granulation aid selection proportion small mineral oil or organic matter solvent, except having
Machine oil dirt auxiliary agent selects organic strong oxidizer；(3) secondary drying：Heat drying be granulated after graininess carbon black to its water content
Finished particle carbon black is obtained less than 2%.The carbon black being dried to obtain through this processing method, toluene light transmittance reach 92%, inhale
Oily value, iodine absorption value, 300% are stretched value and is obtained for surely to be obviously improved, according to test result disclosed in this patent, treated charcoal
It is 122 (10 that black performance, which can reach oil factor,-5m3/ kg), iodine absorption value 124g/kg, 300% stretched surely for -9.2Mpa, improve really
The quality of regeneration carbon black.But the environmental benefit of product carbon and economic valence in natural gas acetylene in order to better improve
Value preferably improves the final quality and performance for obtaining carbon black, it is necessary to the product carbon in natural gas acetylene into traveling
The research of one step.
Invention content
The purpose of the present invention is to provide a kind of stable, obtained carbon black products function admirables and practical coproduction charcoal
Black processing method, turns waste into wealth, and obtains distinct economic, while thoroughly solving the environmental issue of original factory.
The technical solution adopted in the present invention is：
A kind of processing method of natural gas acetylene coproduction carbon black, includes the following steps：The acetylene of generation is mixed with carbon black
It closes flue gas to be passed through carbon black separator after cooling and detached, obtains hydrocarbon black powder, then to after by carbon black separator
Gas phase washed, obtain carbon black slurry, and carbon black slurry is dried, obtain carbon black powder, then by carbon black powder
Be sent into annealing device and be modified processing, obtain carbon black semi-finished product, then after carbon black semi-finished product are mixed with hydrocarbon black powder according to
It is secondary to crush classification, gas solid separation, granulating and forming, storage, you can carbon black finished product is made.
Preferably, the processing method of a kind of natural gas acetylene coproduction carbon black, includes the following steps：
(a) acetylene of generation and carbon black mixed flue gas are cooled to after 400~700 DEG C and is passed through carbon black separator and is divided
From, you can obtain hydrocarbon black powder；
(b) to being washed by the gas phase after carbon black separator, carbon black slurry is obtained, and do to carbon black slurry
It is dry, obtain the carbon black powder that water content is less than 2%；
(c) the carbon black powder of dry gained is sent into annealing device, and is passed through medium gas in heat treated device, then
It opens heating equipment to heat carbon black powder, and the temperature for controlling carbon black powder is 350~750 DEG C, after modification i.e.
Obtain carbon black semi-finished product；
(d) classification, gas solid separation, granulating and forming, storage are crushed after carbon black semi-finished product being mixed with hydrocarbon black powder successively
Bag deposit fills, you can carbon black finished product is made.
The carbon black processing method of the present invention, for comparing tradition only with the processing method of washing separation, main feature exists
In the form being combined using two kinds of separate modes, may be used first the modes such as cyclonic separation by mixed flue gas 70~
85% carbon black is separated, and remaining carbon black in mixed flue gas is totally separated out by the mode for then reusing washing separation
It goes；Since by isolated carbon blacks of modes such as cyclonic separations, without the processing of water, water content is extremely low, almost free from admixture
And it is purer, so the properties of the carbon black material are all very good；And the remaining carbon black obtained using washing separation
Material, properties just compare it is poor, but by the present invention drying and heating be modified processing after can also obtain
Relatively better carbon black semi-finished product are obtained, are then again mixed the carbon black material that carbon black semi-finished product are isolated with first time, Zhi Houzai
Carry out a series of retrofits, so that it may to finally obtain the carbon black products of function admirable.
Mixed flue gas is needed to be cooled to and can just be passed through carbon black separator after 400~700 DEG C, this is because such as
Fruit drops too low the temperature of mixed flue gas can weaken the application performance of collection carbon black significantly, although and the temperature after cooling down is excessively high
In properties of product without influence, but technique controlling difficulty can be increased, equipment is made to be difficult to bear, so by constantly experiment, preferably will
Mixed flue gas cools to 400~700 DEG C.
Secondly, carbon black slurry is dried to after carbon black powder of the water content less than 2% in the present invention and is just sent into heat treatment dress
It sets and carries out heat modification processing, the purpose for the arrangement is that in order to just complete the work of carbon black drying before carbon black enters annealing device
Make, it made to meet national standard, and can be special after entering annealing device progress carbon black modification work, make carbon black
Organic greasy dirt therein is removed, impurity is reduced, enhances product performance, without again in the step in order to dry carbon black waste more
More energy to reduce the consumption of the energy, and using drying in this way and the modified form detached, also reduces entire work
The complexity of skill process so that technological process is more easy to manipulate, to ensure the stability of technological process and product is finally made
Stability.
And the temperature for needing to control carbon black powder in annealing device is 350~750 DEG C, this is because in this temperature
Section can just make carbon black material be modified the carbon black products for becoming and meeting performance requirement, higher in this section operating temperature, obtain
Carbon black products performance is better, furthermore, it is necessary to explanation is the protection for having medium gas due to carbon black powder herein, while medium gas
Also organic greasy dirt in carbon black material can be taken away, so the operating temperature of carbon black material can be drier than in step (b) herein
When operating temperature it is high, it is too high equipment to be made to be difficult to bear without burning, but also should not be too high.
Preferably, heating equipment described in step (c) is one or both of microwave generator, electrical heat tracing set group
It closes.Heating equipment is mainly that carbon black material provides thermal energy, so that carbon black material is reached set temperature and completes modification；And this two
The selection of heating equipment can alone or in combination be run according to the performance requirement to final carbon black products.
Further, medium gas described in step (c) is N2、CO2One or more of combination gas.
The temperature that is passed through of medium gas described in step (c) is 300~900 DEG C.
Preferably, the temperature that is passed through of medium gas described in step (c) is 600~750 DEG C.
In annealing device, containing non-carbon black components such as organic greasy dirts in carbon black material, it is easy to happen burning, in order to
It prevents the generation of combustion case, prevent carbon black from being aoxidized, thus need to be filled with medium gas conduct protection gas, it will be in annealing device
Oxygen discharge, so that carbon black material is in the state of starvation；Medium gas also has and adds other than as the function of protection gas
Thermal black material makes material that modified effect occur, due to consider that the temperature of control carbon black powder is 350~750 DEG C, institute
It is unsuitable excessively high with the temperature of medium gas, not so the temperature of carbon black can be caused very high, and if medium temperature spends low, medium gas
Thermal energy therein can be absorbed when being filled with annealing device, so that the temperature control process of carbon black material is become complicated and difficult, simultaneously
But also medium gas weakens the modifying function of carbon black, therefore by continuous experiment, the temperature of medium gas is preferably 300~900
DEG C, preferably 600~750 DEG C；And it, can also be by the organic oil in carbon black material because medium gas is in the state of flowing
The non-carbon black component such as dirt takes away carbon black, and annealing device is discharged, to play the role of purifying carbon black.
Preferably, carbon black is passed through after the acetylene of generation and carbon black mixed flue gas being cooled to 480~580 DEG C in step (a)
Separator.
Further, the carbon black separator is cyclone separator.It is detached, can be reached using cyclone separator
The effect that in acetylene and carbon black mixed flue gas 70~85% carbon black is separated.
Further, the processing method of a kind of natural gas acetylene coproduction carbon black, it is further comprising the steps of：To heat
The gas phase of processing unit discharge carries out vent gas treatment.Component in tail gas can be realized gas, solid, liquid three-phase separate by vent gas treatment
From wherein the direct qualified discharge of gas phase, liquid phase are mainly hydrocarbon-type oil, recyclable to make fuel use, and solid phase is carbon black material, directly
It returns in annealing device after participating in modification and is used as output of products.
Preferably, it is dried by the way of expansion drying described in step (b), temperature is controlled at 220~280 DEG C.To warp
The drying mode that the carbon black slurry that washing separation obtains uses flash distillation is crossed, more smoothly more easily can make the aqueous of carbon black slurry
Amount is less than 2%；And for this carbon black slurry, the degree for being less than 2% due to be finally dried to water content, and in carbon black
Containing organic greasy dirt, and as the reduction of carbon black material moisture is just more easy to burn, so the temperature control of its drying is just
Extremely important, one is to ensure that dry efficiency, another will ensure not there is a situation where burning, therefore by continuous examination
It tests, dry temperature is preferably 220~280 DEG C.
The beneficial effects of the invention are as follows：Compared with existing processing method, the present invention by special technology and equipment,
The thorough change for realizing the internal performance of carbon black material becomes a kind of fine chemistry industry that performance is stable, unique, practical value is high
Product makes its application field expand, the significant increase economic value of carbon black material；Meanwhile product carbon material no longer becomes
The problem of perplexing factory material, realizes waste secondary use, avoids pollution environment, thoroughly solves environmental issue.
Description of the drawings
Fig. 1 is the process flow chart that coproduction carbon black is handled in natural gas acetylene of the present invention.
Specific implementation mode
Present invention will be further explained below with reference to the attached drawings and examples.
Embodiment 1
A kind of processing method of natural gas acetylene coproduction carbon black, includes the following steps：
(a) acetylene of generation is cooled to carbon black mixed flue gas and is passed through cyclone separator after 480 DEG C and detaches, you can
Obtain hydrocarbon black powder；
(b) to being washed with water by the gas phase after cyclone separator, the carbon black that water content is 70~80% can be obtained
Slurry, and use operating temperature to be dried for the mode of 220~280 DEG C of flash distillation in carbon black slurry, it obtains water content and is less than
2% carbon black powder；
(c) the carbon black powder of dry gained is sent into annealing device, and it is 600 DEG C that temperature is passed through in heat treated device
Medium gas N2, then open microwave generator and electrical heat tracing set heat carbon black powder, wherein microwave generator
Power be 10kW, electrical heat tracing set operating power be 100kW, and control carbon black powder temperature be 500 DEG C, carbon powder
The heat treatment time of material is 6~8 minutes, and carbon black semi-finished product are obtained after modification；Also heat treatment is filled in heat treatment process
The gas phase for setting discharge carries out vent gas treatment；
(d) micron order crushing, classification removal of impurities, gas-solid point are carried out after carbon black semi-finished product being mixed with hydrocarbon black powder successively again
From, granulating and forming, storage, you can carbon black finished product is made.
Carbon black end properties made from the present embodiment are：Iodine absorption value 136g/kg, oil factor 1.18ml/g, 300% stretches and answers surely
Power 10.2MPa, tensile strength 22.1MPa, elongation rate of tensile failure 488%.
Embodiment 2
A kind of processing method of natural gas acetylene coproduction carbon black, includes the following steps：
(a) acetylene of generation is cooled to carbon black mixed flue gas and is passed through cyclone separator after 700 DEG C and detaches, you can
Obtain hydrocarbon black powder；
(b) to being washed with water by the gas phase after cyclone separator, the carbon black that water content is 70~80% can be obtained
Slurry, and use operating temperature to be dried for the mode of 220~280 DEG C of flash distillation in carbon black slurry, it obtains water content and is less than
2% carbon black powder；
(c) the carbon black powder of dry gained is sent into annealing device, and it is 600 DEG C that temperature is passed through in heat treated device
Medium gas CO2, then open electrical heat tracing set and carbon black powder heated, wherein the operating power of electrical heat tracing set
For 100kW, and the temperature for controlling carbon black powder is 550 DEG C, and the heat treatment time of carbon black powder is 10~11 minutes, modification
Obtain carbon black semi-finished product afterwards；Vent gas treatment also is carried out to the gas phase of annealing device discharge in heat treatment process；
(d) micron order crushing, classification removal of impurities, gas-solid point are carried out after carbon black semi-finished product being mixed with hydrocarbon black powder successively again
From, granulating and forming, storage, you can carbon black finished product is made.
Carbon black end properties made from the present embodiment are：Iodine absorption value 122g/kg, oil factor 1.37ml/g, 300% stretches and answers surely
Power 9.0MPa, tensile strength 23.3MPa, elongation rate of tensile failure 532%.
Claims (10)
1. a kind of processing method of natural gas acetylene coproduction carbon black, it is characterized in that：Include the following steps：By the acetylene of generation with
Carbon black mixed flue gas is passed through carbon black separator after cooling and is detached, and obtains hydrocarbon black powder, then to being detached by carbon black
Gas phase after device is washed, and is obtained carbon black slurry, and carbon black slurry is dried, carbon black powder is obtained, then by charcoal
Black powder is sent into annealing device and is modified processing, obtains carbon black semi-finished product, then carbon black semi-finished product are mixed with hydrocarbon black powder
Classification, gas solid separation, granulating and forming, storage are crushed after conjunction successively, you can carbon black finished product is made.
2. a kind of processing method of natural gas acetylene coproduction carbon black as described in claim 1, it is characterized in that：Including following step
Suddenly：
(a) acetylene of generation is cooled to carbon black mixed flue gas after 400~700 DEG C and is passed through carbon black separator and detaches,
Hydrocarbon black powder can be obtained；
(b) to being washed by the gas phase after carbon black separator, carbon black slurry is obtained, and carbon black slurry is dried,
Obtain the carbon black powder that water content is less than 2%；
(c) the carbon black powder of dry gained is sent into annealing device, and is passed through medium gas in heat treated device, then opened
Heating equipment heats carbon black powder, and the temperature for controlling carbon black powder is 350~750 DEG C, is obtained after modification
Carbon black semi-finished product；
(d) classification, gas solid separation, granulating and forming, storage packet are crushed after carbon black semi-finished product being mixed with hydrocarbon black powder successively
Dress, you can carbon black finished product is made.
3. a kind of processing method of natural gas acetylene coproduction carbon black as claimed in claim 2, it is characterized in that：In step (c)
The heating equipment is the combination of one or both of microwave generator, electrical heat tracing set.
4. a kind of processing method of natural gas acetylene coproduction carbon black as claimed in claim 2, it is characterized in that：In step (c)
The medium gas is N2、CO2One or more of combination gas.
5. a kind of processing method of natural gas acetylene coproduction carbon black as claimed in claim 2, it is characterized in that：In step (c)
The temperature that is passed through of the medium gas is 300~900 DEG C.
6. a kind of processing method of natural gas acetylene coproduction carbon black as claimed in claim 5, it is characterized in that：In step (c)
The temperature that is passed through of the medium gas is 600~750 DEG C.
7. a kind of processing method of natural gas acetylene coproduction carbon black as claimed in claim 2, it is characterized in that：The step
(a) acetylene of generation and carbon black mixed flue gas are cooled to after 480~580 DEG C in and are passed through carbon black separator.
8. a kind of processing method of natural gas acetylene coproduction carbon black as claimed in claim 2, it is characterized in that：The carbon black point
It is cyclone separator from device.
9. a kind of processing method of natural gas acetylene coproduction carbon black as claimed in claim 2, it is characterized in that：Further include following
Step：Vent gas treatment is carried out to the gas phase of annealing device discharge.
10. a kind of processing method of natural gas acetylene coproduction carbon black as claimed in claim 2, it is characterized in that：In step (b)
By the way of expansion drying, temperature is controlled at 220~280 DEG C for the drying.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110105793A (en) * | 2019-06-19 | 2019-08-09 | 焦作市和兴化学工业有限公司 | A kind of method of acetylene carbon black modification |
| CN110229544A (en) * | 2019-06-14 | 2019-09-13 | 重庆鼎立新材料科技有限公司 | The method of natural gas acetylene association carbon black synthesis nanometer carbon black |
| CN110237899A (en) * | 2019-06-19 | 2019-09-17 | 焦作市和兴化学工业有限公司 | Break poly- machine and acetylene carbon black purifier apparatus and high-performance acetylene carbon black production method |
| CN111574858A (en) * | 2019-02-15 | 2020-08-25 | 中国石油化工股份有限公司 | Method for removing organic matters in carbon black by-product in preparation of acetylene by partial oxidation of natural gas |
| CN112210233A (en) * | 2019-07-11 | 2021-01-12 | 中国石油化工股份有限公司 | Preparation method of conductive carbon black |
| CN112391068A (en) * | 2019-08-16 | 2021-02-23 | 烁元新材料(东营)股份有限公司 | Device for carrying out high-temperature treatment on carbon black in oxygen-free state |
| CN113025080A (en) * | 2021-02-25 | 2021-06-25 | 重庆慧雍应用技术研究院有限公司 | Method for treating carbon black of natural gas combustion cracking product |
| CN114426782A (en) * | 2020-10-14 | 2022-05-03 | 中国石油化工股份有限公司 | Activation method of byproduct carbon black for preparing acetylene by partial oxidation of natural gas |
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| CN206457455U (en) * | 2017-01-23 | 2017-09-01 | 新疆久泰化工有限公司 | A kind of carbon black collects granulation packaging system and carbon black production line |
| CN107556785A (en) * | 2017-09-15 | 2018-01-09 | 四川宏图普新微波科技有限公司 | A kind of preparation method of regeneration hard carbon black used for rubber reinforcement |
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| US3075829A (en) * | 1960-05-13 | 1963-01-29 | Continental Carbon Co | Process for manufacture of carbon black |
| CN206457455U (en) * | 2017-01-23 | 2017-09-01 | 新疆久泰化工有限公司 | A kind of carbon black collects granulation packaging system and carbon black production line |
| CN107556785A (en) * | 2017-09-15 | 2018-01-09 | 四川宏图普新微波科技有限公司 | A kind of preparation method of regeneration hard carbon black used for rubber reinforcement |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111574858A (en) * | 2019-02-15 | 2020-08-25 | 中国石油化工股份有限公司 | Method for removing organic matters in carbon black by-product in preparation of acetylene by partial oxidation of natural gas |
| CN110229544A (en) * | 2019-06-14 | 2019-09-13 | 重庆鼎立新材料科技有限公司 | The method of natural gas acetylene association carbon black synthesis nanometer carbon black |
| CN110105793A (en) * | 2019-06-19 | 2019-08-09 | 焦作市和兴化学工业有限公司 | A kind of method of acetylene carbon black modification |
| CN110237899A (en) * | 2019-06-19 | 2019-09-17 | 焦作市和兴化学工业有限公司 | Break poly- machine and acetylene carbon black purifier apparatus and high-performance acetylene carbon black production method |
| CN110237899B (en) * | 2019-06-19 | 2020-08-18 | 焦作市和兴化学工业有限公司 | Polymer breaker, acetylene black purification equipment and high-performance acetylene black production method |
| CN112210233A (en) * | 2019-07-11 | 2021-01-12 | 中国石油化工股份有限公司 | Preparation method of conductive carbon black |
| CN112210233B (en) * | 2019-07-11 | 2022-07-12 | 中国石油化工股份有限公司 | Preparation method of conductive carbon black |
| CN112391068A (en) * | 2019-08-16 | 2021-02-23 | 烁元新材料(东营)股份有限公司 | Device for carrying out high-temperature treatment on carbon black in oxygen-free state |
| CN112391068B (en) * | 2019-08-16 | 2024-01-30 | 烁元新材料(东营)股份有限公司 | Device for carrying out high-temperature treatment on carbon black in anaerobic state |
| CN114426782A (en) * | 2020-10-14 | 2022-05-03 | 中国石油化工股份有限公司 | Activation method of byproduct carbon black for preparing acetylene by partial oxidation of natural gas |
| CN113025080A (en) * | 2021-02-25 | 2021-06-25 | 重庆慧雍应用技术研究院有限公司 | Method for treating carbon black of natural gas combustion cracking product |
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