CN101955181A - Method for preparing active carbon by using carbon byproduct of fast pyrolysis of larchwood - Google Patents
Method for preparing active carbon by using carbon byproduct of fast pyrolysis of larchwood Download PDFInfo
- Publication number
- CN101955181A CN101955181A CN2010105154120A CN201010515412A CN101955181A CN 101955181 A CN101955181 A CN 101955181A CN 2010105154120 A CN2010105154120 A CN 2010105154120A CN 201010515412 A CN201010515412 A CN 201010515412A CN 101955181 A CN101955181 A CN 101955181A
- Authority
- CN
- China
- Prior art keywords
- gas
- mentioned
- carbon
- pyrolysis oil
- pyrolysis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000197 pyrolysis Methods 0.000 title claims abstract description 88
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 28
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 18
- 239000006227 byproduct Substances 0.000 title claims abstract description 10
- 239000002296 pyrolytic carbon Substances 0.000 claims abstract description 41
- 239000012190 activator Substances 0.000 claims abstract description 17
- 239000007789 gas Substances 0.000 claims description 84
- 239000003610 charcoal Substances 0.000 claims description 15
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 14
- 230000004913 activation Effects 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 230000037452 priming Effects 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 235000011089 carbon dioxide Nutrition 0.000 claims description 12
- 230000007420 reactivation Effects 0.000 claims description 11
- JYYOBHFYCIDXHH-UHFFFAOYSA-N carbonic acid;hydrate Chemical compound O.OC(O)=O JYYOBHFYCIDXHH-UHFFFAOYSA-N 0.000 claims description 10
- 238000009833 condensation Methods 0.000 claims description 10
- 230000005494 condensation Effects 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 3
- 239000000047 product Substances 0.000 abstract description 15
- 238000002360 preparation method Methods 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 5
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 238000001994 activation Methods 0.000 abstract 2
- 230000003213 activating effect Effects 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 238000004042 decolorization Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 49
- 238000001179 sorption measurement Methods 0.000 description 14
- 239000002028 Biomass Substances 0.000 description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 description 7
- 229960000907 methylthioninium chloride Drugs 0.000 description 7
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 6
- 230000000274 adsorptive effect Effects 0.000 description 6
- 229910052740 iodine Inorganic materials 0.000 description 6
- 239000011630 iodine Substances 0.000 description 6
- 239000002994 raw material Substances 0.000 description 6
- 239000003245 coal Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 239000002023 wood Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 235000008119 Larix laricina Nutrition 0.000 description 2
- 241000218653 Larix laricina Species 0.000 description 2
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 2
- 241000772415 Neovison vison Species 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000010306 acid treatment Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 235000009508 confectionery Nutrition 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000012265 solid product Substances 0.000 description 2
- 238000013268 sustained release Methods 0.000 description 2
- 239000012730 sustained-release form Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- LPSCRKGVODJZIB-UHFFFAOYSA-N [I].[C] Chemical class [I].[C] LPSCRKGVODJZIB-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000012075 bio-oil Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000003895 organic fertilizer Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000010920 waste tyre Substances 0.000 description 1
Images
Landscapes
- Carbon And Carbon Compounds (AREA)
Abstract
The invention relates to a method for preparing active carbon by using the carbon byproduct of the fast pyrolysis of larchwood, which belongs to the technical field of active carbon preparation. The method comprises the following steps of: fast pyrolyzing the larchwood to obtain pyrolytic carbon and pyrolytic gas; condensing the pyrolytic gas to obtain pyrolytic oil and uncondensable gas, and combusting the uncondensable gas in the air to obtain active gas; and activating the pyrolytic carbon by using the active gas as an activator, and cooling to room temperature to obtain the active carbon, wherein the high-temperature tail gas generated in the activation process is recycled. The method of the invention has the advantages that: an external heat source and the external activator are not used in the activation process; the comprehensive use efficiency of the pyrolytic product is high, and environmental pollution is light; the process for preparing the active carbon is simple, has high energy use efficiency, realizes the recycling of the heat and saves energy sources; and the obtained active carbon has high absorption performance, meets national standards in various indexes and can be widely applied to gas-phase absorption and decolorization of chemical products.
Description
Technical field
The present invention relates to a kind of larchwood fast pyrogenation by product charcoal that utilizes and prepare process of active carbon, belong to the Preparation of Activated Carbon technical field.
Background technology
Gac has flourishing pore texture, huge specific surface area, unique surface functional group, and therefore stronger adsorptive power and good chemical stability are widely used in industrial every field such as pharmacy, chemical industry, food.The traditional raw material of preparation gac mainly is natural ore deposit plants such as coal, solid wood, but the reserves of coal are limited, and the source of wood material is limited, and it is very necessary therefore selecting a kind of proper raw material, alternative traditional raw material to be used to produce gac.
Biomass energy is a kind of clean reproducible energy, and the biomass fast pyrogenation technology is to be a kind of effective means of biomass energy with Wood Adhesives from Biomass, has become the domestic and international research emphasis.But so far, applied research about the biomass fast pyrogenation product concentrates on liquid product bio oil optimum preparation condition and application facet mostly, for pyrolysis solid product charcoal, especially the applied research of forest biomass pyrolytic solid product charcoal is fewer.The application mode of pyrolytic carbon mainly contained direct burning, did organic fertilizer or soil sustained release dosage etc. present stage, but directly the incendiary power loss is very big on the one hand, the ash oontent of pyrolytic carbon itself is higher on the other hand, be unfavorable for directly doing fuel or sustained release dosage, these application modes can not embody the economic worth of pyrolytic carbon.Studies show that the fast pyrogenation charcoal itself has comparatively flourishing pore texture, specific surface area generally is higher than 250m
2/ g, micropore volume can account for more than 40% of total pore volume, has certain adsorptive power, but can not reach the requirement of commercial gac, therefore needs through further handling to improve its adsorptive power.Improve rapid pyrolysis products utilization ratio and added value, the economic benefit that improves fast pyrolysis technology is the subject matter that the present invention need solve.
It is raw material that the research for preparing gac about pyrolytic carbon at present both at home and abroad concentrates on the waste tyre pyrolytic carbon black mostly, prepare on the gac by physics or chemical activation method, the forest of employing biomass pyrolytic carbon is seldom arranged, and particularly the biomass fast pyrogenation charcoal prepares the research of gac.
Patent publication No. CN 1491886A, people such as the Zhang Wenhui of Beijing Coal Chemistry Inst., Coal Sciences General Inst. are the charing raw material with coal, timber and shell, adopt the mixed gas of oxidizing gas (water vapour, carbonic acid gas, flue gas and oxygen) and reducing gas (ammonia, hydrogen, methylamine, ethene or acetylene) to prepare gac as activator.Because mixed gas has changed the character of activated carbon surface, thereby improved charcoal absorption performance and physicals, its adsorptive power and sweetening power have all improved 10~30%, and product even aperture distribution degree improves, the gas delivery ability strengthens, and product yield has improved 2~15%.Problems such as the process need of this preparation gac is through charing, two steps of activation, and the reducing gas cost in the mixed gas activator is higher, and soak time is longer, causes Preparation of Activated Carbon cost height, and energy consumption height, energy utilization rate are low.
Summary of the invention
The objective of the invention is to propose a kind of larchwood fast pyrogenation by product charcoal that utilizes and prepare process of active carbon, with tamarack fast pyrogenation by product charcoal is raw material, utilize its high carbon content rate, comparatively flourishing pore texture, bigger advantages such as specific surface area, with the not condensable gases that produces in the fast pyrogenation process directly burning or the high temperature carbon dioxide that obtains with Sweet natural gas mixings afterfire and water vapour feed in the activation furnace as activator and activate, with the efficient utilization of realization tamarack rapid pyrolysis products.
The larchwood fast pyrogenation by product charcoal that utilizes that the present invention proposes prepares process of active carbon, may further comprise the steps:
(1) larchwood is carried out fast pyrogenation at 450 ℃~600 ℃, obtain pyrolytic carbon and pyrolysis gas;
(2) above-mentioned pyrolysis gas is carried out condensation at 20 ℃~40 ℃, obtain pyrolysis oil and non-condensable gases, contain heavy pyrolysis oil, middle matter pyrolysis oil and lightweight pyrolysis oil in the pyrolysis oil;
(3) above-mentioned not condensable gases is burnt in air, obtain the activated gas of forming by carbonic acid gas and water vapour;
(4) utilize above-mentioned activated gas as activator, above-mentioned pyrolytic carbon is activated, the priming reaction temperature is: 750 ℃~1100 ℃, temperature rise rate is 3 ℃/minute~15 ℃/minute, soak time is 10 minutes~120 minutes, is cooled to room temperature, obtains gac; Or mix with above-mentioned pyrolytic carbon with above-mentioned heavy pyrolysis oil, the blended mass percent is: the heavy pyrolysis oil: pyrolytic carbon=1: (3~15), making mixture forming is clavate or sphere, at last the mixture after the moulding is activated, the priming reaction temperature is: 750 ℃~1100 ℃, temperature rise rate is 3 ℃/minute~15 ℃/minute, and soak time is 10 minutes~120 minutes, be cooled to room temperature, obtain gac;
(5) high-temperature tail gas that produces in the reactivation process is back in the activation furnace, recycles.
The larchwood fast pyrogenation by product charcoal that utilizes that the present invention proposes prepares process of active carbon, the not condensable gases of utilizing pyrolysis to produce is directly burnt or is activator with the high hot carbonic acid gas and the water vapour of Sweet natural gas mixing afterfire generation, do not need to add external heat source and activator in the reactivation process, pyrolysis product comprehensive utilization ratio height, environmental pollution is little; The technology of preparation gac is simple, and the charcoal absorption that obtains is functional, and every index meets national standard, can be widely used in the decolouring of Gas Phase Adsorption and Chemicals; The energy utilization rate height has been realized the heat recycle, save energy.
Description of drawings
Fig. 1 is a Preparation of Activated Carbon schema of the present invention.
Embodiment
The larchwood fast pyrogenation by product charcoal that utilizes that the present invention proposes prepares process of active carbon, and its flow process may further comprise the steps as shown in Figure 1:
(1) larchwood is carried out fast pyrogenation at 450 ℃~600 ℃, obtain pyrolytic carbon and pyrolysis gas;
(2) above-mentioned pyrolysis gas is carried out condensation at 20 ℃~40 ℃, obtain pyrolysis oil and non-condensable gases, contain heavy pyrolysis oil, middle matter pyrolysis oil and lightweight pyrolysis oil in the pyrolysis oil;
(3) above-mentioned not condensable gases is burnt in air, obtain the activated gas of forming by carbonic acid gas and water vapour;
(4) utilize above-mentioned activated gas as activator, above-mentioned pyrolytic carbon is activated, the priming reaction temperature is: 750 ℃~1100 ℃, temperature rise rate is 3 ℃/minute~15 ℃/minute, soak time is 10 minutes~120 minutes, is cooled to room temperature, obtains gac; Or mix with above-mentioned pyrolytic carbon with above-mentioned heavy pyrolysis oil, the blended mass percent is: the heavy pyrolysis oil: pyrolytic carbon=1: (3~15), making mixture forming is clavate or sphere, at last the mixture after the moulding is activated, the priming reaction temperature is: 750 ℃~1100 ℃, temperature rise rate is 3 ℃/minute~15 ℃/minute, and soak time is 10 minutes~120 minutes, be cooled to room temperature, obtain gac;
(5) high-temperature tail gas that produces in the reactivation process is back in the activation furnace, recycles.
Below introduce the embodiment of the inventive method:
Embodiment 1:
(1) larchwood is carried out fast pyrogenation at 550 ℃, obtain pyrolytic carbon and pyrolysis gas;
(2) above-mentioned pyrolysis gas is carried out condensation at 35 ℃, obtain pyrolysis oil and non-condensable gases, contain heavy pyrolysis oil, middle matter pyrolysis oil and lightweight pyrolysis oil in the pyrolysis oil;
(3) above-mentioned not condensable gases is burnt in air, obtain the activated gas of forming by carbonic acid gas and water vapour;
(4) get above-mentioned pyrolytic carbon 100g, utilize above-mentioned activated gas as activator, above-mentioned pyrolytic carbon is activated, the priming reaction temperature is: 800 ℃, temperature rise rate is 6 ℃/minute, and soak time is 15 minutes, is cooled to room temperature, obtains activated carbon product.Its yield is 42.6%, iodine sorption value 936mg/g, methylene blue adsorption value 173mg/g.
(5) high-temperature tail gas that produces in the reactivation process is back in the activation furnace, recycles.
Embodiment 2:
(1) larchwood is carried out fast pyrogenation at 550 ℃, obtain pyrolytic carbon and pyrolysis gas;
(2) above-mentioned pyrolysis gas is carried out condensation at 25 ℃, obtain pyrolysis oil and non-condensable gases, contain heavy pyrolysis oil, middle matter pyrolysis oil and lightweight pyrolysis oil in the pyrolysis oil;
(3) above-mentioned not condensable gases is burnt in air, obtain the activated gas of forming by carbonic acid gas and water vapour;
(4) get above-mentioned pyrolytic carbon 100g, utilize above-mentioned activated gas as activator, above-mentioned pyrolytic carbon is activated, the priming reaction temperature is: 850 ℃, temperature rise rate is 10 ℃/minute, and soak time is 30 minutes, is cooled to room temperature, obtains activated carbon product.Its yield is 36.8%, iodine sorption value 987mg/g, methylene blue adsorption value 136mg/g.
(5) high-temperature tail gas that produces in the reactivation process is back in the activation furnace, recycles.
Embodiment 3:
(1) larchwood is carried out fast pyrogenation at 550 ℃, obtain pyrolytic carbon and pyrolysis gas;
(2) above-mentioned pyrolysis gas is carried out condensation at 30 ℃, obtain pyrolysis oil and non-condensable gases, contain heavy pyrolysis oil, middle matter pyrolysis oil and lightweight pyrolysis oil in the pyrolysis oil;
(3) above-mentioned not condensable gases is burnt in air, obtain the activated gas of forming by carbonic acid gas and water vapour;
(4) get above-mentioned pyrolytic carbon 100g, utilize above-mentioned activated gas as activator, above-mentioned pyrolytic carbon is activated, the priming reaction temperature is: 900 ℃, temperature rise rate is 8 ℃/minute, and soak time is 20 minutes, is cooled to room temperature, obtains activated carbon product.Its yield is 40.2%, iodine sorption value 962mg/g, methylene blue adsorption value 168mg/g.
(5) high-temperature tail gas that produces in the reactivation process is back in the activation furnace, recycles.
Embodiment 4:
(1) larchwood is carried out fast pyrogenation at 550 ℃, obtain pyrolytic carbon and pyrolysis gas;
(2) above-mentioned pyrolysis gas is carried out condensation at 30 ℃, obtain pyrolysis oil and non-condensable gases, contain heavy pyrolysis oil, middle matter pyrolysis oil and lightweight pyrolysis oil in the pyrolysis oil;
(3) above-mentioned not condensable gases is burnt in air, obtain the activated gas of forming by carbonic acid gas and water vapour;
(4) get above-mentioned pyrolytic carbon 100g, utilize above-mentioned activated gas as activator, above-mentioned pyrolytic carbon is activated, the priming reaction temperature is: 1000 ℃, temperature rise rate is 8 ℃/minute, and soak time is 10 minutes, is cooled to room temperature, obtains activated carbon product.Its yield is 39.8%, iodine sorption value 902mg/g, methylene blue adsorption value 147mg/g.
(5) high-temperature tail gas that produces in the reactivation process is back in the activation furnace, recycles.
Embodiment 5:
(1) larchwood is carried out fast pyrogenation at 550 ℃, obtain pyrolytic carbon and pyrolysis gas;
(2) above-mentioned pyrolysis gas is carried out condensation at 30 ℃, obtain pyrolysis oil and non-condensable gases, contain heavy pyrolysis oil, middle matter pyrolysis oil and lightweight pyrolysis oil in the pyrolysis oil;
(3) above-mentioned not condensable gases is burnt in air, obtain the activated gas of forming by carbonic acid gas and water vapour;
(4) get above-mentioned pyrolytic carbon 100g, utilize above-mentioned activated gas as activator, above-mentioned pyrolytic carbon is activated, the priming reaction temperature is: 900 ℃, temperature rise rate is 10 ℃/minute, and soak time is 20 minutes, is cooled to room temperature, obtains activated carbon product.In order to increase activated carbon adsorptive capacity, utilize diluted acid that it is carried out cleanup acid treatment, diluted acid can be dilute hydrochloric acid, rare nitric acid or dilute sulphuric acid, the activated carbon-iodine adsorptive value 1208mg/g that obtains after the cleanup acid treatment, methylene blue adsorption value 237mg/g.
(5) high-temperature tail gas that produces in the reactivation process is back in the activation furnace, recycles.
Embodiment 6:
(1) larchwood is carried out fast pyrogenation at 550 ℃, obtain pyrolytic carbon and pyrolysis gas;
(2) above-mentioned pyrolysis gas is carried out condensation at 30 ℃, obtain pyrolysis oil and non-condensable gases, contain heavy pyrolysis oil, middle matter pyrolysis oil and lightweight pyrolysis oil in the pyrolysis oil;
(3) above-mentioned not condensable gases is burnt in air, obtain the activated gas of forming by carbonic acid gas and water vapour;
(4) get above-mentioned pyrolytic carbon 100g, utilize above-mentioned activated gas as activator, above-mentioned pyrolytic carbon is activated, the priming reaction temperature is: 900 ℃, temperature rise rate is 8 ℃/minute.Because pyrolysis tail gas is nonflammable, the feeding methane gas is combustion-supporting, treats to stop to feed methane gas after the pyrolysis tail gas trouble-free burning, activates 20 minutes, is cooled to room temperature, obtains activated carbon product.Its yield is 42.6%, iodine sorption value 936mg/g, methylene blue adsorption value 173mg/g.
(5) high-temperature tail gas that produces in the reactivation process is back in the activation furnace, recycles.
Embodiment 7:
(1) larchwood is carried out fast pyrogenation at 550 ℃, obtain pyrolytic carbon and pyrolysis gas;
(2) above-mentioned pyrolysis gas is carried out condensation at 30 ℃, obtain pyrolysis oil and non-condensable gases, contain heavy pyrolysis oil, middle matter pyrolysis oil and lightweight pyrolysis oil in the pyrolysis oil;
(3) above-mentioned not condensable gases is burnt in air, obtain the activated gas of forming by carbonic acid gas and water vapour;
(4) get above-mentioned pyrolytic carbon 100g; with pyrolysis mink cell focus uniform mixing; the mixing quality ratio is: the pyrolysis mink cell focus: pyrolytic carbon=1: 10 is spherical with mixture forming, utilizes above-mentioned activated gas as activator; above-mentioned pyrolytic carbon is activated; the priming reaction temperature is: 1000 ℃, temperature rise rate is 8 ℃/minute, and soak time is 10 minutes; be cooled to room temperature, obtain the granulated active carbon product.The iodine sorption value 850mg/g of granulated active carbon, methylene blue adsorption value 128mg/g.
(5) high-temperature tail gas that produces in the reactivation process is back in the activation furnace, recycles.
Claims (1)
1. one kind is utilized larchwood fast pyrogenation by product charcoal to prepare process of active carbon, it is characterized in that this method may further comprise the steps:
(1) larchwood is carried out fast pyrogenation at 450 ℃~600 ℃, obtain pyrolytic carbon and pyrolysis gas;
(2) above-mentioned pyrolysis gas is carried out condensation at 20 ℃~40 ℃, obtain pyrolysis oil and non-condensable gases, contain heavy pyrolysis oil, middle matter pyrolysis oil and lightweight pyrolysis oil in the pyrolysis oil;
(3) above-mentioned not condensable gases is burnt in air, obtain the activated gas of forming by carbonic acid gas and water vapour;
(4) utilize above-mentioned activated gas as activator, above-mentioned pyrolytic carbon is activated, the priming reaction temperature is: 750 ℃~1100 ℃, temperature rise rate is 3 ℃/minute~15 ℃/minute, soak time is 10 minutes~120 minutes, is cooled to room temperature, obtains gac; Or mix with above-mentioned pyrolytic carbon with above-mentioned heavy pyrolysis oil, the blended mass percent is: the heavy pyrolysis oil: charcoal=1: (3~15), making mixture forming is clavate or sphere, at last the mixture after the moulding is activated, the priming reaction temperature is: 750 ℃~1100 ℃, temperature rise rate is 3 ℃/minute~15 ℃/minute, and soak time is 10 minutes~120 minutes, be cooled to room temperature, obtain gac;
(5) high-temperature tail gas that produces in the reactivation process is back in the activation furnace, recycles.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010105154120A CN101955181B (en) | 2010-10-15 | 2010-10-15 | Method for preparing active carbon by using carbon byproduct of fast pyrolysis of larchwood |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010105154120A CN101955181B (en) | 2010-10-15 | 2010-10-15 | Method for preparing active carbon by using carbon byproduct of fast pyrolysis of larchwood |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101955181A true CN101955181A (en) | 2011-01-26 |
CN101955181B CN101955181B (en) | 2012-01-04 |
Family
ID=43482811
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2010105154120A Expired - Fee Related CN101955181B (en) | 2010-10-15 | 2010-10-15 | Method for preparing active carbon by using carbon byproduct of fast pyrolysis of larchwood |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN101955181B (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102627276A (en) * | 2012-03-22 | 2012-08-08 | 中国林业科学研究院林产化学工业研究所 | Method for preparing nutshell activated carbon by pyrolyzing activation technology and activated carbon |
CN102718211A (en) * | 2012-07-03 | 2012-10-10 | 北京大学深圳研究生院 | Method of preparing activated carbon by biomass |
CN103496700A (en) * | 2013-09-11 | 2014-01-08 | 华南理工大学 | Method for preparing active carbon from pyrolysis residues of cedarwood sawdust |
CN104229797A (en) * | 2013-06-08 | 2014-12-24 | 中国科学院工程热物理研究所 | Pyrolysis-activation-combustion-gasification integrated furnace, garbage landfill coordinating treatment system and activated carbon preparation method |
CN105236592A (en) * | 2015-11-14 | 2016-01-13 | 黄海涛 | Water purification charcoal material as well as production method and application thereof |
CN105692615A (en) * | 2016-04-22 | 2016-06-22 | 江苏省星霖碳业股份有限公司 | System and method for preparing active carbon through natural gas and carbon black |
CN106276892A (en) * | 2016-08-05 | 2017-01-04 | 北京林业大学 | A kind of method preparing pressed active carbon for raw material with thermal cracking charcoal |
CN106929051A (en) * | 2017-03-23 | 2017-07-07 | 华电电力科学研究院 | A kind of utilization biomass pyrolytic byproduct obtains the method and device of the single enriched biological oil of component |
CN108397773A (en) * | 2018-03-02 | 2018-08-14 | 农业部规划设计研究院 | A kind of mixed combustion equipment of biomass pyrolytic oil gas |
CN109160512A (en) * | 2018-10-22 | 2019-01-08 | 中国林业科学研究院林产化学工业研究所 | A kind of gasification of biomass residue pressed active carbon and preparation method thereof |
CN112246823A (en) * | 2020-09-08 | 2021-01-22 | 新奥生物质能(天津)有限公司 | High ash pyrolytic carbon utilization method and system |
CN113398886A (en) * | 2021-07-14 | 2021-09-17 | 中国科学院广州能源研究所 | Method for co-producing adsorption activated carbon and biological aviation fuel precursor by using waste lignin |
CN114132924A (en) * | 2021-11-30 | 2022-03-04 | 上海巴库斯超导新材料有限公司 | Low-energy-consumption preparation method of artificial graphite/coke negative electrode material of lithium ion battery |
CN114192555A (en) * | 2021-10-11 | 2022-03-18 | 北京清新环境技术股份有限公司 | Method for recycling and comprehensively utilizing high-carbon-content hazardous solid wastes, product and application thereof |
CN116282009A (en) * | 2023-05-04 | 2023-06-23 | 烟台大学 | Preparation method of pine cone activated carbon and pine cone activated carbon |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101100299A (en) * | 2007-05-23 | 2008-01-09 | 南京林业大学 | Method for preparing active carbon |
-
2010
- 2010-10-15 CN CN2010105154120A patent/CN101955181B/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101100299A (en) * | 2007-05-23 | 2008-01-09 | 南京林业大学 | Method for preparing active carbon |
Non-Patent Citations (2)
Title |
---|
《华东理工大学学报(自然科学版)》 20051231 陈健等 生物质裂解残炭制备活性炭 第821-824页 1 第31卷, 第6期 2 * |
《浙江大学学报(工学版)》 20040630 张志霄等 利用废轮胎热解炭制取活性炭的试验研究 第775-778页 1 第38卷, 第6期 2 * |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102627276A (en) * | 2012-03-22 | 2012-08-08 | 中国林业科学研究院林产化学工业研究所 | Method for preparing nutshell activated carbon by pyrolyzing activation technology and activated carbon |
CN102718211A (en) * | 2012-07-03 | 2012-10-10 | 北京大学深圳研究生院 | Method of preparing activated carbon by biomass |
CN104229797B (en) * | 2013-06-08 | 2016-12-28 | 中国科学院工程热物理研究所 | Pyrolysis activation combustion gasification all-in-one oven, refuse landfill Coordination Treatment system, activated carbon manufacture method |
CN104229797A (en) * | 2013-06-08 | 2014-12-24 | 中国科学院工程热物理研究所 | Pyrolysis-activation-combustion-gasification integrated furnace, garbage landfill coordinating treatment system and activated carbon preparation method |
CN103496700A (en) * | 2013-09-11 | 2014-01-08 | 华南理工大学 | Method for preparing active carbon from pyrolysis residues of cedarwood sawdust |
CN103496700B (en) * | 2013-09-11 | 2016-10-05 | 华南理工大学 | A kind of method that Lignum seu Ramulus Cunninghamiae Lanceolatae wood flour pyrolysis residue is prepared activated carbon |
CN105236592A (en) * | 2015-11-14 | 2016-01-13 | 黄海涛 | Water purification charcoal material as well as production method and application thereof |
CN105692615B (en) * | 2016-04-22 | 2017-11-17 | 江苏省星霖碳业股份有限公司 | The system and method that a kind of gas black prepares activated carbon |
CN105692615A (en) * | 2016-04-22 | 2016-06-22 | 江苏省星霖碳业股份有限公司 | System and method for preparing active carbon through natural gas and carbon black |
CN106276892A (en) * | 2016-08-05 | 2017-01-04 | 北京林业大学 | A kind of method preparing pressed active carbon for raw material with thermal cracking charcoal |
CN106929051B (en) * | 2017-03-23 | 2023-06-16 | 华电电力科学研究院有限公司 | Method and device for obtaining component single enriched biological oil by using biomass pyrolysis byproducts |
CN106929051A (en) * | 2017-03-23 | 2017-07-07 | 华电电力科学研究院 | A kind of utilization biomass pyrolytic byproduct obtains the method and device of the single enriched biological oil of component |
CN108397773A (en) * | 2018-03-02 | 2018-08-14 | 农业部规划设计研究院 | A kind of mixed combustion equipment of biomass pyrolytic oil gas |
CN109160512A (en) * | 2018-10-22 | 2019-01-08 | 中国林业科学研究院林产化学工业研究所 | A kind of gasification of biomass residue pressed active carbon and preparation method thereof |
CN109160512B (en) * | 2018-10-22 | 2021-11-30 | 中国林业科学研究院林产化学工业研究所 | Biomass gasification residue formed activated carbon and preparation method thereof |
CN112246823A (en) * | 2020-09-08 | 2021-01-22 | 新奥生物质能(天津)有限公司 | High ash pyrolytic carbon utilization method and system |
CN113398886A (en) * | 2021-07-14 | 2021-09-17 | 中国科学院广州能源研究所 | Method for co-producing adsorption activated carbon and biological aviation fuel precursor by using waste lignin |
CN113398886B (en) * | 2021-07-14 | 2024-05-31 | 中国科学院广州能源研究所 | Method for co-producing adsorption activated carbon and biological aviation fuel precursor by utilizing waste lignin |
CN114192555A (en) * | 2021-10-11 | 2022-03-18 | 北京清新环境技术股份有限公司 | Method for recycling and comprehensively utilizing high-carbon-content hazardous solid wastes, product and application thereof |
CN114132924A (en) * | 2021-11-30 | 2022-03-04 | 上海巴库斯超导新材料有限公司 | Low-energy-consumption preparation method of artificial graphite/coke negative electrode material of lithium ion battery |
CN116282009A (en) * | 2023-05-04 | 2023-06-23 | 烟台大学 | Preparation method of pine cone activated carbon and pine cone activated carbon |
Also Published As
Publication number | Publication date |
---|---|
CN101955181B (en) | 2012-01-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101955181B (en) | Method for preparing active carbon by using carbon byproduct of fast pyrolysis of larchwood | |
CN102161897B (en) | Method for preparing charcoal activated carbon flammable gas biological oil by utilizing crop straws | |
CN107365593A (en) | A kind of method that antibiotic bacterium dregs prepare charcoal | |
CN106423113B (en) | A kind of preparation method of modified oil shale semi-coke adsorbent | |
CN101112984A (en) | Method for preparing activated charcoal by using discarded jatropha curcas husk | |
CN102250633A (en) | Method for improving quality of brown coal with externally heated rotary furnace | |
CN101245250A (en) | Energy comprehensive utilization method for lignification biomass material | |
CN102718211A (en) | Method of preparing activated carbon by biomass | |
CN106865523A (en) | A kind of preparation method and applications of the improvement hydro-thermal charcoal of alleviation rice field ammonia volatilization discharge | |
CN101332991A (en) | Method for preparing tung cell-based active carbon by gas oxidation method | |
CN105174245A (en) | System for preparing biological activated carbon by recycling waste resources | |
CN105710114B (en) | Domestic garbage and agricultural and forestry waste carbonization cycle comprehensive treatment system and method | |
CN101624530A (en) | Biomass liquefied oil and preparation method thereof | |
WO2019114385A1 (en) | Method for preparing biomass fuel using urban domestic sludge | |
CN109233879A (en) | A kind of processing method of biomass straw thermal cracking | |
CN106635104A (en) | Method for preparing high-performance compound machine-made charcoal | |
CN102190298A (en) | Method for preparing active carbon from carbon byproduct in fast pyrolysis of forest remainder | |
CN113120898A (en) | Nitrogen-doped formed biochar and preparation method and application thereof | |
CN108300532A (en) | A kind of biomass fuel and its production technology | |
CN102259855A (en) | Production method of environmentally-friendly super activated bamboo charcoal | |
CN103484138B (en) | Manufacturing process and equipment of bamboo charcoal | |
CN205701817U (en) | One way of life rubbish and agriculture and forestry organic waste material carbonization circulation comprehensive processing system | |
CN101723364A (en) | Method for preparing activated carbon by using plasmas to crack solid coal product | |
CN103695070A (en) | Biomass particles with high combustion value and preparation method of biomass particles | |
CN103421529B (en) | Biomass catalytic pyrolysis method and ceramic solid acid catalyst |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 |