CN1057241A - A kind of processing method of making activated carbon fiber - Google Patents
A kind of processing method of making activated carbon fiber Download PDFInfo
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- CN1057241A CN1057241A CN 90105146 CN90105146A CN1057241A CN 1057241 A CN1057241 A CN 1057241A CN 90105146 CN90105146 CN 90105146 CN 90105146 A CN90105146 A CN 90105146A CN 1057241 A CN1057241 A CN 1057241A
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- carbonization
- activated carbon
- processing method
- tail gas
- carbon fiber
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Abstract
The invention discloses a kind of processing method of making activated carbon fiber, specifically be with various raw fibres through technologies such as pre-treatment, carbonization, activation, pickling, neutralization, washing, oven dry, be made into activated carbon fiber.The high-temperature tail gas that the shielding gas that adopts in carbonization and reactivation process produces for burning; this tail gas needs through purifying treatment; the control oxygen level is less than 1%; because the present invention adopts the straight firing technique of non-electric furnace; thereby can overcome the big drawback of electric furnace process production energy consumption; and the purification utilization of tail gas has been avoided the consumption of N2.
Description
The present invention relates to a kind of processing method of making activated carbon fiber.
Activated carbon fiber is emerging in the world in recent years a kind of novel absorption material, it is big tens times even tens times than granule activated carbon to the adsorptive power of many materials, because the fast development of modern industrial technology, at aspects such as nuclear exploitation, nuclear power generation, chemical industry, metallurgy and three-waste pollution processing, traditional activated carbon particle can't satisfy industrial needs far away, and high adsorption capacity, the relatively easy activated carbon fiber of desorption and regeneration have caused the great attention of industrially developed country.
The U.S. was the raw material production activated carbon-fiber felt in 1970 with resol, afterwards, it is the operational path of raw material production activated carbon fiber that countries such as Japan, the Soviet Union, Canada have also successively developed with polyacrylonitrile and viscose glue series fiber, because the carbonization of adopting, activating apparatus is an electric furnace, and adopts N in carbonization process
2Deng protection of inert gas, thereby current consumption is bigger, and throughput is low, and it is higher to produce comprehensive cost.
The objective of the invention is to provide a kind of processing method of improved manufacturing activated carbon fiber, this method can reduce energy expenditure effectively, improves the throughput of activated carbon fiber.
The object of the present invention is achieved like this: adopt the straight firing technique of non-electric furnace; with combustion gases is heating source; with the tail gas of combustion gases shielding gas as carbonization and reactivation process; various fibrous materials; carbonization under 300-600 ℃ of condition, part combustion gas tail gas after treatment enters carbonization chamber and activating chamber, plays the protection of inert gas effect; under 800-1200 ℃ of condition, the fiber after the carbonization is activated then, be made into activated carbon fiber through pickling, neutralization, washing, oven dry.
The present invention's processing method is because adopt the straight firing technique of non-electric furnace, so throughput is bigger, simultaneously, owing to return carbonization chamber and activating chamber shielding gas as carbonization process and reactivation process with the tail gas circulation of combustion gases, thereby than N
2Protection, energy expenditure can descend greatly.
The concrete processing method of the present invention is provided by following examples and accompanying drawing thereof:
Fig. 1 is the process flow sheet that processing method proposes according to the present invention.
Fig. 2 is technological process explanation skeleton view of the present invention.
Fig. 3 is Fig. 2 cross-section cutaway view (part) longitudinally
Below in conjunction with accompanying drawing 1-3 in detail the present invention is described in detail.
1. raw material gives processing: various raw materials are (as vinyl cyanide, Mierocrystalline cellulose, xylogen, pitch, the viscose glue cotton) fiber is dried under 80-120 ℃ of condition, to moisture percentage 10-16%, raw fibre is dropped into steeping vat, with containing catalyzer cobalt chloride 3 ‰-8 ‰, contain carbonization promotor zinc chloride 8 ‰-20 ‰, the chemical liquid that contains HCl3-20 ‰ flooded 24-30 hour, then with the finishing rolls arrangement evenly with raw fibre, controlling fiber felt thickness is 3-8mm, raw material is evenly put in stack pallet, send into drying shed one, baking is 15-20 minute under 150-200 ℃ of condition, vaporised gas is by 1. temperature control discharging of extraction hood, and 9 is thermocouple jack.10 are anti-waterfall syphon trap, and 11 are the water tank of water seal.
2. carbonization: the raw fibre that drying is given after the heat enters carbonization chamber two, to the indoor CO that fills of carbonization
2Gas, with indoor displacement to containing O
2Below 1%, be warming up to 300-600 ℃, the tail gas after the burning 2 enters exhaust purifier A by the road, filling activated carbon in the exhaust purifier A, and this activated carbon is dried with the aqueous solution dipping back of NaOH or KoH5～10%, and control contains O
2Below 1%, tail gas 4 is introduced carbonization chamber two by the road, whole carbonization process takes and is 20-25 minute, and D is for advancing burner, and F is the ash disposal mouth, and E is a fuel inlet, and 12 is blast orifice, and 3 is the air inducing hole.5 is two locular walls of the brick one-tenth in hole, and W is the non-oxygen shaft floor of filling 0.3-1.5 granularity coke powder.
3. activation
Fiber after the carbonization enters activating chamber three, by header tank B, and (the NH with 3 ‰
4)
2CO
3The spray fibrefelt, controlled temperature is 800-1200 ℃,, 4 is entered in the activating chamber three by the road after exhaust purifier A purifies by the up tail gas of pipeline 2, control contains O
2Be below 1%, soak time is 25-30 minute, in reactivation process, by the little negative pressure of air inducing hole 3 air inducing control chamber.H is the exhaust gas emission flue.7 is switch lever.
4. pickling
Fiber after the activation is taken out from removing in the material chamber G through fire-resistant closing door 6, drop into pickling tank, the salt acid elution with 36%, the weight ratio of controlling raw fibre and hydrochloric acid soln is 1: 10, to be squeezed to moisture percentage be 15-20% to the fibrefelt that will wash then.
5. neutralization
With the fibrefelt after the pickling with 20% NaOH neutralization, to pH be 4-5.
6. washing
Fibrefelt after the neutralization is washed three times with clear water, and the weight ratio of fiber and used wash water was 1: 10 when control was washed at every turn.
7. oven dry
With the washing after fibrefelt under 200-250 ℃ of condition, dry by the fire to packed moisture be 1-2%, be finished product.
Because the present invention adopts the straight firing technique of non-electric furnace, and the tail gas that directly adopts the burning generation not only can save a large amount of energy after treatment as the shielding gas in carbonization and the reactivation process, and, avoided N
2Deng the consumption of gas, simultaneously, every technical indicator of the activated carbon fiber of making near or surpass Japanese like product.
The perspective view symbol description:
The expression high-temperature furnace gas.
Claims (5)
1, a kind of processing method of making activated carbon fiber, what comprise raw fibre gives processing steps such as processing, carbonization, activation, pickling, neutralization, washing, oven dry, it is characterized in that: the tail gas that the shielding gas that carbonization and activation are adopted produces for burning.
2, processing method according to claim 1 is characterized in that: the raw material that carbonization process adopts can be viscose glue cotton fibre, acryl fibre, cellulosic fibre, lignin fibre or pitch fibers.
3, processing method according to claim 1 is characterized in that: the combustion tail gas that carbonization and activation are adopted needs through purifying treatment.
4, processing method according to claim 3 is characterized in that: decontamination process system adopts by containing NaOH(or KOH) aqueous solution dipping of 5-10% and the activated carbon after the oven dry finish.
5, according to claim 3 and 4 described processing methodes, it is characterized in that: the tail gas oxygen level after the purification answers＜1%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90105146 CN1031394C (en) | 1990-06-13 | 1990-06-13 | Active carbon fibre mfg. method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90105146 CN1031394C (en) | 1990-06-13 | 1990-06-13 | Active carbon fibre mfg. method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1057241A true CN1057241A (en) | 1991-12-25 |
| CN1031394C CN1031394C (en) | 1996-03-27 |
Family
ID=4878979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90105146 Expired - Fee Related CN1031394C (en) | 1990-06-13 | 1990-06-13 | Active carbon fibre mfg. method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1031394C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1302987C (en) * | 2004-12-28 | 2007-03-07 | 华南理工大学 | Surface-activated carbon fiber and its preparation method |
| CN100451190C (en) * | 2007-05-29 | 2009-01-14 | 肖颖 | Efficient energy-saving device of heating-gas circulation use for producing carbon fiber |
| CN102942176A (en) * | 2012-12-04 | 2013-02-27 | 西北师范大学 | Preparation method of cotton fiber coal-base material, and application thereof as electrode material of supercapacitor |
| CN104114756A (en) * | 2012-01-23 | 2014-10-22 | 茵芬提亚公司 | Method for stabilizing lignin fiber for further conversion to carbon fiber |
| CN105361289A (en) * | 2015-12-08 | 2016-03-02 | 哈尔滨工业大学 | Hollow stacked activated carbon fiber haze-proof mask and making method |
| CN106087115A (en) * | 2016-06-15 | 2016-11-09 | 绍兴县福兴纺织服饰有限公司 | A kind of preparation method of asphalt activity carbon fiber cloth |
| CN107313131A (en) * | 2017-07-18 | 2017-11-03 | 成都新柯力化工科技有限公司 | The active carbon filament environment-friendly materials and preparation method of a kind of rapid classification purification air |
| CN108377637A (en) * | 2018-02-13 | 2018-08-07 | 南通大学 | A kind of activated carbon fiber-ferriferrous oxide composite material and preparation method thereof |
| CN114293364A (en) * | 2022-01-28 | 2022-04-08 | 华北电力大学（保定） | Carbon fiber activation method and apparatus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1077926C (en) * | 1999-06-11 | 2002-01-16 | 中山大学 | Process for preparing activated carbon fibres by boric acid activating method |
-
1990
- 1990-06-13 CN CN 90105146 patent/CN1031394C/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1302987C (en) * | 2004-12-28 | 2007-03-07 | 华南理工大学 | Surface-activated carbon fiber and its preparation method |
| CN100451190C (en) * | 2007-05-29 | 2009-01-14 | 肖颖 | Efficient energy-saving device of heating-gas circulation use for producing carbon fiber |
| US11286582B2 (en) | 2012-01-23 | 2022-03-29 | Rise Innventia Ab | Method for stabilizing lignin fiber for further conversion to carbon fiber |
| CN104114756A (en) * | 2012-01-23 | 2014-10-22 | 茵芬提亚公司 | Method for stabilizing lignin fiber for further conversion to carbon fiber |
| CN104114756B (en) * | 2012-01-23 | 2017-08-15 | 因文提亚公司 | Method for stablizing lignin fibre to be further converted into carbon fiber |
| CN102942176A (en) * | 2012-12-04 | 2013-02-27 | 西北师范大学 | Preparation method of cotton fiber coal-base material, and application thereof as electrode material of supercapacitor |
| CN102942176B (en) * | 2012-12-04 | 2014-06-25 | 西北师范大学 | Preparation method of cotton fiber coal-base material, and application thereof as electrode material of supercapacitor |
| CN105361289A (en) * | 2015-12-08 | 2016-03-02 | 哈尔滨工业大学 | Hollow stacked activated carbon fiber haze-proof mask and making method |
| CN105361289B (en) * | 2015-12-08 | 2017-05-03 | 哈尔滨工业大学 | Hollow stacked activated carbon fiber haze-proof mask and making method |
| CN106087115A (en) * | 2016-06-15 | 2016-11-09 | 绍兴县福兴纺织服饰有限公司 | A kind of preparation method of asphalt activity carbon fiber cloth |
| CN107313131A (en) * | 2017-07-18 | 2017-11-03 | 成都新柯力化工科技有限公司 | The active carbon filament environment-friendly materials and preparation method of a kind of rapid classification purification air |
| CN108377637A (en) * | 2018-02-13 | 2018-08-07 | 南通大学 | A kind of activated carbon fiber-ferriferrous oxide composite material and preparation method thereof |
| CN108377637B (en) * | 2018-02-13 | 2019-10-11 | 南通大学 | A kind of activated carbon fiber-ferriferrous oxide composite material and preparation method thereof |
| CN114293364A (en) * | 2022-01-28 | 2022-04-08 | 华北电力大学（保定） | Carbon fiber activation method and apparatus |
| CN114293364B (en) * | 2022-01-28 | 2023-09-26 | 华北电力大学（保定） | Carbon fiber activation method and equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1031394C (en) | 1996-03-27 |
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