CN107304308A - A kind of production method of low content polycyclic aromatic hydrocarbon carbon black - Google Patents
A kind of production method of low content polycyclic aromatic hydrocarbon carbon black Download PDFInfo
- Publication number
- CN107304308A CN107304308A CN201610244586.5A CN201610244586A CN107304308A CN 107304308 A CN107304308 A CN 107304308A CN 201610244586 A CN201610244586 A CN 201610244586A CN 107304308 A CN107304308 A CN 107304308A
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- China
- Prior art keywords
- carbon black
- air
- hot
- smoke
- polycyclic aromatic
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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
-
- 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
- C09C1/60—Agglomerating, pelleting, or the like by dry methods
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The present invention provides a kind of production method of low content polycyclic aromatic hydrocarbon carbon black, comprises the following steps：(1) raw material is mixed with high-temperature fuel gas stream in the reactor, rapid cracking production carbon black smoke；(2) carbon black smoke collects hydrocarbon black powder therein through main bag hose；(3) hydrocarbon black powder of collection is granulated through comminutor, the carbon black pellet made is sent into drying machine afterwards；(4) hot-air and tail gas input tail-gas combustion stove burn to form heat smoke；(5) carbon black pellet will be dried in heat smoke and the drying machine of the hot-air input step (3) more than needed of supplement；(6) finished product is inputted into finished product basin after drying.The present invention is directly contacted by adding 400 700 DEG C of air, air in carbon black products drying process with carbon black, effectively reduces the polycyclic aromatic hydrocarbon content in carbon black.
Description
Technical field
The present invention relates to black carbon technology field, it is related to a kind of production method of low content polycyclic aromatic hydrocarbon carbon black.
Background technology
Carbon black is hydrocarbons through imperfect combustion or is cracked to form.Carbon black is widely used, except being mended for rubber
It is strong outer, it may also be used for other materials, such as coating, paint, ink, ink powder, electronic product, plastics, fiber, battery, assign system
Coloring, anti-ultraviolet ageing, antistatic or conductivity energy needed for product.Containing a certain amount of right in the carbon black products of conventional method production
The harmful polycyclic aromatic hydrocarbon material of human body, polycyclic aromatic hydrocarbon is that a class is present in environment for a long time, because it has strong causing toxicity, cause prominent
Become with the characteristic such as carcinogenic, and as priority pollutant, therefore be constantly subjected to the extensive concern of domestic and international many scholars.It is low to contain
The carbon black of amount polycyclic aromatic hydrocarbon is a kind of environmentally-friecarbon carbon black, and the project is always the object of carbon black worker research.
The content of the invention
It is an object of the invention to provide a kind of production method of low content polycyclic aromatic hydrocarbon carbon black, to reduce strong toxicity aromatic hydrocarbons
Using.
The production method of low content polycyclic aromatic hydrocarbon carbon black of the present invention, comprises the following steps：(1) raw material is in reactor
In mixed with high-temperature fuel gas stream, rapid cracking production carbon black smoke；(2) carbon black smoke collects carbon powder therein through main bag hose
End；(3) hydrocarbon black powder of collection is granulated through comminutor, the carbon black pellet made is sent into drying machine afterwards；(4) hot-air and
Tail gas input tail-gas combustion stove burns to form heat smoke；(5) by the dry of the hot-air input step (3) more than needed of heat smoke and supplement
Carbon black pellet is dried in dry machine；(6) finished product is inputted into finished product basin after drying.
Hot air temperature in the step (4) is preferably 400-700 DEG C, the mass ratio control of hot-air and carbon black pellet
System is 0.25~1.1：1.
The present invention is directly contacted with carbon black, had by adding 400-700 DEG C of air, air in carbon black products drying process
Effect reduces the polycyclic aromatic hydrocarbon content in carbon black.After hot-air is directly contacted with carbon black, polycyclic aromatic hydrocarbon and hot-air in carbon black
In oxygen reaction generation carbon dioxide and water of constitution, its typical reaction equation is：C(2+4n)H(2n+4)+O2→CO2+H2O。
Brief description of the drawings
Fig. 1 is the process chart of the present invention.
Embodiment
Below in conjunction with preferred embodiment, the invention will be further described.
Embodiment 1
A kind of production method of environmentally-friecarbon carbon black, it comprises the following steps：(1) raw material is mixed with high-temperature fuel gas stream in the reactor
Close, rapid cracking production carbon black smoke；(2) carbon black smoke collects hydrocarbon black powder therein through main bag hose；(3) by the charcoal of collection
Black powder is granulated through comminutor, and the carbon black pellet made is sent into drying machine afterwards；(4) hot-air and tail gas input exhaust combustion
Stove burns to form heat smoke；(5) by heat smoke and supplement hot-air input step (3) more than needed drying machine in carbon black pellet
It is dried, the hot air temperature control is 400 DEG C, and the mass ratio of hot-air and carbon black pellet is controlled 0.25：1；(6)
Finished product is inputted into finished product basin after drying.
Its result is：Produce 20000 tons of carbon black production devices per year, when producing each kind of carbon black, added in device drying process
Same volume is 800Nm316 PAHS summations contrast under/H air, different temperatures.
Embodiment 2：
A kind of production method of environmentally-friecarbon carbon black, it comprises the following steps：(1) raw material is mixed with high-temperature fuel gas stream in the reactor
Close, rapid cracking production carbon black smoke；(2) carbon black smoke collects hydrocarbon black powder therein through main bag hose；(3) by the charcoal of collection
Black powder is granulated through comminutor, and the carbon black pellet made is sent into drying machine afterwards；(4) hot-air and tail gas input exhaust combustion
Stove burns to form heat smoke；(5) by heat smoke and supplement hot-air input step (3) more than needed drying machine in carbon black pellet
It is dried, the hot air temperature control is 700 DEG C, and the mass ratio of hot-air and carbon black pellet is controlled 1.1：1；(6)
Finished product is inputted into finished product basin after drying.
Its result is：Produce 20000 tons of hard (carbon) black process units per year, mutually synthermal 400 DEG C are added in device drying process
Air, 16 PAHS summations of polycyclic aromatic hydrocarbon under different volumes.
Claims (2)
1. the production method of low content polycyclic aromatic hydrocarbon carbon black, comprises the following steps：(1) raw material in the reactor with high-temperature fuel gas stream
Mixing, rapid cracking production carbon black smoke；(2) carbon black smoke collects hydrocarbon black powder therein through main bag hose；(3) by collection
Hydrocarbon black powder is granulated through comminutor, and the carbon black pellet made is sent into drying machine afterwards；(4) hot-air and tail gas input tail gas combustion
Stove is burnt to burn to form heat smoke；(5) by heat smoke and supplement hot-air input step (3) more than needed drying machine in carbon black
Grain is dried；(6) finished product is inputted into finished product basin after drying.
2. according to claim 1, the hot air temperature in step (4) is preferably 400-700 DEG C, hot-air and carbon black pellet
Mass ratio control 0.25~1.1：1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610244586.5A CN107304308A (en) | 2016-04-19 | 2016-04-19 | A kind of production method of low content polycyclic aromatic hydrocarbon carbon black |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610244586.5A CN107304308A (en) | 2016-04-19 | 2016-04-19 | A kind of production method of low content polycyclic aromatic hydrocarbon carbon black |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107304308A true CN107304308A (en) | 2017-10-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610244586.5A Pending CN107304308A (en) | 2016-04-19 | 2016-04-19 | A kind of production method of low content polycyclic aromatic hydrocarbon carbon black |
Country Status (1)
| Country | Link |
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| CN (1) | CN107304308A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112452124A (en) * | 2020-12-11 | 2021-03-09 | 石家庄市新星化炭有限公司 | Drying denitration method in carbon black production and carbon black production system |
| CN115160830A (en) * | 2022-08-05 | 2022-10-11 | 安徽鑫唯橡胶制品有限公司 | Production method of fine grinding carbon black with low content of polycyclic aromatic hydrocarbon |
-
2016
- 2016-04-19 CN CN201610244586.5A patent/CN107304308A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112452124A (en) * | 2020-12-11 | 2021-03-09 | 石家庄市新星化炭有限公司 | Drying denitration method in carbon black production and carbon black production system |
| CN115160830A (en) * | 2022-08-05 | 2022-10-11 | 安徽鑫唯橡胶制品有限公司 | Production method of fine grinding carbon black with low content of polycyclic aromatic hydrocarbon |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171031 |
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| WD01 | Invention patent application deemed withdrawn after publication |