CN1256405C - Method for continuous dry distillation and carbonization for wood and bamboo - Google Patents
Method for continuous dry distillation and carbonization for wood and bamboo Download PDFInfo
- Publication number
- CN1256405C CN1256405C CNB031228062A CN03122806A CN1256405C CN 1256405 C CN1256405 C CN 1256405C CN B031228062 A CNB031228062 A CN B031228062A CN 03122806 A CN03122806 A CN 03122806A CN 1256405 C CN1256405 C CN 1256405C
- Authority
- CN
- China
- Prior art keywords
- wood
- carbonization
- bamboo
- temperature
- gas
- 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.)
- Expired - Fee Related
Links
- 235000017166 Bambusa arundinacea Nutrition 0.000 title claims abstract description 51
- 235000017491 Bambusa tulda Nutrition 0.000 title claims abstract description 51
- 241001330002 Bambuseae Species 0.000 title claims abstract description 51
- 235000015334 Phyllostachys viridis Nutrition 0.000 title claims abstract description 51
- 239000011425 bamboo Substances 0.000 title claims abstract description 51
- 238000003763 carbonization Methods 0.000 title claims abstract description 42
- 239000002023 wood Substances 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000000197 pyrolysis Methods 0.000 title claims abstract description 17
- 235000021419 vinegar Nutrition 0.000 claims abstract description 24
- 239000000052 vinegar Substances 0.000 claims abstract description 24
- 239000003610 charcoal Substances 0.000 claims abstract description 23
- 238000001354 calcination Methods 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 239000002994 raw material Substances 0.000 claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 16
- 238000002485 combustion reaction Methods 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000009833 condensation Methods 0.000 claims abstract description 4
- 230000005494 condensation Effects 0.000 claims abstract description 4
- 238000009656 pre-carbonization Methods 0.000 claims abstract description 4
- 230000002269 spontaneous effect Effects 0.000 claims abstract description 3
- 230000008676 import Effects 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 13
- 238000010000 carbonizing Methods 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 230000002411 adverse Effects 0.000 claims description 2
- 238000005255 carburizing Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 21
- 239000003795 chemical substances by application Substances 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 229910052740 iodine Inorganic materials 0.000 description 2
- 239000011630 iodine Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000917122 Greenidea Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000011020 pilot scale process Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002916 wood waste Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
Landscapes
- Coke Industry (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The present invention relates to a new method for the continuous dry distillation and carbonization of wood and bamboo. Raw materials are added from the top of a vertical moving bed and orderly undergo the stages of drying, pre-carbonization, carbonization, calcination and cooling. Pyrolysis gas generated in a carbonization zone counter flows or crosswise flows with the raw materials from bottom to top to pass through a material layer; the raw materials are heated and dried to reach the carburizing temperature; then the raw materials enter a condenser for condensation to obtain wood (bamboo) vinegar liquid. Combustible gas discharged by air while in combustion is lead into a calcining zone by control to cause the calcination temperature to reach 700 to 1100 DEG C; wood (bamboo) charcoal is taken after being indirectly cooled in a cooling passage to a temperature at which the wood (bamboo) charcoal can not be in spontaneous combustion. The method has the advantages of high carbonization degree, high conductivity and high adsorbing property of the wood (bamboo) charcoal, low tar content and good quality of the wood (bamboo) vinegar liquid, etc.
Description
Technical field the invention belongs to thermal decomposition of wood field, is that to make high degree of carbonisation, high absorbability, high conductivity wood or-and bamboo charcoal and high-quality about wood or the carbonization of bamboo wood continuous carbonization wooden or-and the method for bamboo vinegar liquid.
Background technology modern society environmental consciousness and Green idea are rooted in the hearts of the people day by day, new application constantly is developed thermal decomposition of wood product as crude substance, thereupon more and more higher to the requirement of wood or bamboo charcoal and wood or bamboo vinegar liquid quality, high degree of carbonisation, high conductivity, high absorbability wooden or-and bamboo charcoal and high-quality wooden or-and the demand of bamboo vinegar liquid in continuous growth.The traditional wood or the processing method of bamboo wood destructive distillation carbonization have two kinds of batch-type (intermittent type) and continous ways, and continous way destructive distillation carbonization all has clear superiority at aspects such as quality product, energy consumption and industrial scales.Existing internal heat type continuous carbonization carbonization technique is to split broken and raw material preliminarily dried from the top adding through blocking in vertical moving-bed, raw material relies on gravity to move down gradually, experience is dry successively, pre-carbonization, carbonization, stages such as calcining and cooling are discharged by discharger at last, 500 ℃ of burning gas that import the mixing burner generation at calcining zone from the outside flow from bottom to top as heating agent material are heated, and the pyrolysis gas that produces during with the raw material drying carbonization mixes from bed top and flows out, enter the condenser cooling condensation then and isolate wood vinegar, not condensing gas part is sent into a cooling zone, bottom and is made the charcoal cooling, another part is delivered to the mixing burner burning, the burning gas that produces 500 ℃ imports calcining zone again as heating agent, the circulation of a beginning new round.The shortcoming one of this method is that calcining temperature is crossed and low can only be produced common charcoal, can not produce the charcoal of high degree of carbonisation, high absorbability, high conductivity; The 2nd, the effluent air flow velocity is big, temperature is high makes the tar content of wood vinegar too high (4.6～6%); The 3rd, it is assorted to operate complicated, system Pang.
Summary of the invention the purpose of this invention is to provide a kind of new wood or bamboo wood destructive distillation carbonization technique method, make in this way one be improve calcining temperature can disposablely produce high degree of carbonisation, high absorbability, high conductivity wooden or-and bamboo charcoal; The 2nd, improve carbonizing zone and wood or bamboo vinegar liquid tar content are reduced with the operating mode of upper curtate; The 3rd, easy to operate, system is terse.
The inventor thinks that though existing continuous carbonization carbonization method adopts as above said burning gas to make heating agent effectively, the mode that imports is trouble, poor efficiency and uneconomic.Carbonization is thermopositive reaction, as long as raw material is heated to the thermopositive reaction starting temperature, carbonization process will carry out automatically, and heating raw does not need too many heat.It is not only convenient but also economical that the pyrolysis gas that generates when utilizing the destructive distillation carbonization (flue gas) is made heating medium.Because of the carbonization thermopositive reaction just finishes about 400 ℃, and the effective incinerating temperature of wood or bamboo charcoal needs must carry out supplementary heating and just can reach more than 700 ℃ but only so not enough.The inventor notices the inflammable gas that can emit many high heating values in the carbonization later stage, as methane, carbon monoxide, hydrogen etc., controlledly imports air and makes its combustion in-situ nearby be undoubtedly best thermal source.Secondly, divide not condensing gas that driftwood or bamboo vinegar liquid condenser discharge to cool off the method for wood or bamboo charcoal, also too bother, must look for another way as heat-eliminating medium.From the thermal characteristic analysis of charcoal, low, the poor thermal conductivity of thermal capacitance mean that the heat that cooling need remove is few, but refrigerative speed also can not be too fast, can use indirect refrigerative mode to realize, adopts cooling duct not only terse but also convenient.The method of finishing according to above thinking of the present invention is to split broken and raw material preliminarily dried from the top adding through blocking in vertical moving-bed, raw material relies on gravity to move down gradually, stages such as dry, the pre-carbonization of experience successively, carbonization, calcining and cooling are discharged by discharger at last, the pyrolysis gas (flue gas) that produces at carbonizing zone makes its drying and reaches carbonization temperature by bed of material heating raw with raw material adverse current or cross-flow from bottom to top, discharge from the top at last and enter wood or bamboo vinegar liquid condenser, not condensing gaseous emission is got off in wood or bamboo vinegar liquid condensation; Controlledly import the air inflammable gas that carbonization process emits that burns locally at calcining zone, heat bed inside and outside the burning gas simultaneously and make calcining temperature reach 700～1100 ℃, derive from the calcining zone bottom then and enter flue row to chimney; Move down gradually and carry out indirect heat exchange along cooling duct at cooling zone wood or bamboo charcoal, do not reduce to and can take out after the temperature of spontaneous combustion with heat-eliminating medium.(for example heat up) can import the not condensing gas that comes out from wood or bamboo vinegar liquid condenser at calcining zone and burn simultaneously in case of necessity, also can import aftercombustion gas from the outside; The not condensing gas that wood or bamboo vinegar liquid condenser are discharged also can be done the energy utilization of miscellaneous equipment.
The present invention has compared following advantage with above-mentioned existing internal heat type continuous carbonization carborization: the first calcining temperature height, because of degree of carbonisation and electroconductibility and calcining temperature positive correlation, temperature has improved degree of carbonisation and has increased naturally, electroconductibility improves naturally, and more than 700 ℃ the activation temperature of charcoal, burning gas is good activator, the formed burning gas of inflammable gas that imports air combustion pyrolysis generation plays activation to the charcoal material in heating charcoal material, the adsorptivity of wood or bamboo charcoal is greatly improved.The content of second wood or bamboo vinegar liquid dissolved tar descends significantly, the tar growing amount is all relevant with raw material water ratio and carbonization temperature, this technology is not owing to import heating agent from the outside, and the water ratio of raw material can be high relatively, up the temperature of each section is lower to make carbonizing zone, the tar growing amount will lack naturally, add that gas flow rate is also low, the distillation function of the similar packing tower of bed is but strengthened, and boiling point enters condenser and is dissolved in wood or the bamboo vinegar liquid for high tar is not easy in bed to discharge relatively.The 3rd operation is significantly simplified, the equipment of system is greatly reduced, can get rid of raw material drying stove, mixing burner, heating agent handling equipment, heat-eliminating medium handling equipment etc., owing to circulate without heating agent, gas flow greatly reduces, and wood or bamboo vinegar liquid condenser also can be done smallerly.
Embodiment: in the tubulation moving-bed dry distillation carbonizing furnace of 16 pipe disjunctors, carry out pilot scale, bamboo chip (the about 36cm of length) and bamboo industrial wood waste with average moisture content 39% are raw material, the temperature of each point for measuring temperature, drying zone is below 200 ℃, 280～340 ℃ of pre-char zone, 400～420 ℃ of char zone, import partly burning gas during intensification from the external combustion chamber, normal operation calcining zone temperature is controlled at 900～1000 ℃, import when wooden bamboo vinegar is tucked in the not condensing gas of condenser portion and burn simultaneously, top temperature can reach 1100 ℃; Bamboo charcoal cooling duct and bamboo vinegar liquid condenser adopt naturally cooling (air-cooled), and drop temperature generally is lower than 40 ℃.10 days (not comprising the warm stove time) of continuous operation, obtain following result: the 42032kg that always feeds intake, go out bamboo charcoal 6075kg, go out bamboo vinegar liquid 5145kg.Bamboo charcoal quality: average fixed carbon (combustible basis) content 95.2%, minimum 94.2%, the highest by 96.6%, resistance value 10 Ω are following accounts for also a lot, minimum less than 1 Ω below 90% or more of product, resistance 3 Ω, the average 700mg/g of iodine sorption value, minimum 545mg/g, the highest 818mg/g, and bamboo charcoal average fixed carbon (combustible basis) content that existing other method is produced is usually less than 90%, iodine sorption value 250～350mg/g, electroconductibility does not have (more than resistance value 10,000 Ω) substantially; The bamboo vinegar liquid quality: dissolved tar average 1.17%, minimum 0.32%, the highest by 2.97% (old dried bamboo plate), and the dissolved tar of the bamboo vinegar liquid that existing other method is produced is usually 3.5～5%.
Claims (4)
1, a kind of method of wooden bamboo wood destructive distillation carbonization, in vertical moving-bed, split broken and raw material preliminarily dried through blocking from the top adding, raw material relies on gravity to move down gradually, stages such as dry, the pre-carbonization of experience successively, carbonization, calcining and cooling are discharged by discharger at last, it is characterized in that: the pyrolysis gas that carbonizing zone produces makes its drying and reaches carbonization temperature by bed of material heating raw with raw material adverse current or cross-flow from bottom to top, discharge from the top at last and enter wood or bamboo vinegar liquid condenser, not condensing gaseous emission is got off in wood or bamboo vinegar liquid condensation; Controlledly import the air inflammable gas that carbonization process emits that burns locally at calcining zone, heat bed inside and outside the burning gas simultaneously and make calcining temperature reach 700～1100 ℃, derive from the calcining zone bottom then and enter flue row to chimney; Move down gradually and carry out indirect heat exchange along cooling duct at cooling zone wood or bamboo charcoal, do not reduce to and can take out after the temperature of spontaneous combustion with heat-eliminating medium.
2, the method for wooden bamboo wood destructive distillation carbonization according to claim 1, it is characterized in that: controlledly import air when burning the inflammable gas that carbonization process emits locally at calcining zone, also import the not condensing gas that comes out from wood or bamboo vinegar liquid condenser and burn simultaneously.
3, the method for wooden bamboo wood destructive distillation carbonization according to claim 1 is characterized in that: said burning gas comprises the burning gas that imports from the outside in case of necessity.
4, according to the method for each described wooden bamboo wood destructive distillation carbonization in the claim 1,2,3, it is characterized in that: do the energy utilization of miscellaneous equipment behind the not condensing gaseous emission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031228062A CN1256405C (en) | 2003-04-13 | 2003-04-13 | Method for continuous dry distillation and carbonization for wood and bamboo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031228062A CN1256405C (en) | 2003-04-13 | 2003-04-13 | Method for continuous dry distillation and carbonization for wood and bamboo |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1458225A CN1458225A (en) | 2003-11-26 |
| CN1256405C true CN1256405C (en) | 2006-05-17 |
Family
ID=29430307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031228062A Expired - Fee Related CN1256405C (en) | 2003-04-13 | 2003-04-13 | Method for continuous dry distillation and carbonization for wood and bamboo |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1256405C (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100424010C (en) * | 2006-07-06 | 2008-10-08 | 康锡军 | Process for preparing bamboo-based activated carbon and dedicated device therefor |
| US8449724B2 (en) * | 2009-08-19 | 2013-05-28 | Andritz Technology And Asset Management Gmbh | Method and system for the torrefaction of lignocellulosic material |
| CN101830709A (en) * | 2010-04-15 | 2010-09-15 | 竹山中强钒业制造有限公司 | Process method for roasting vanadium pentoxide |
| CN101921604B (en) * | 2010-08-30 | 2012-08-22 | 浙江建中竹业科技有限公司 | Dry distillation charring method for bamboos |
| CN102092705B (en) * | 2010-12-10 | 2013-04-03 | 浙江建中竹业科技有限公司 | Carbon particles and preparation method thereof |
| CN103509581B (en) * | 2012-06-20 | 2015-10-14 | 会同县康奇瑞竹木有限公司 | The high-efficiency environment friendly increment Application way of bamboo bits |
| CN102911683B (en) * | 2012-09-29 | 2014-04-23 | 蓝星(北京)化工机械有限公司 | Carbonizing system and carbonizing process of wood materials |
| CN103131442B (en) * | 2013-04-03 | 2014-03-12 | 张京三 | Preparing method for high-calorific-value charcoal |
| CN103484138B (en) * | 2013-09-24 | 2017-04-12 | 尚鼎炉业科技（扬州）有限公司 | Manufacturing process and equipment of bamboo charcoal |
| CN107156192A (en) * | 2017-05-31 | 2017-09-15 | 桂林漓峰医药用品有限责任公司 | The plain antimicrobial fluid of pet animal deodourizing type bamboo jade-like stone |
| BR102017021185B1 (en) * | 2017-10-02 | 2022-07-26 | Vallourec Tubos Do Brasil S.A. | METHOD OF ENERGY REUSE OF CARBONIZING GASES FOR CONTINUOUS PRODUCTION OF CHARCOAL, SYSTEM AND REACTOR FOR CONTINUOUS PRODUCTION OF CHARCOAL FOR CONTINUOUS PRODUCTION OF CHARCOAL |
| CN108207530B (en) * | 2018-02-11 | 2021-04-16 | 浙江窝里宅农业发展有限公司 | Planting method of selenium-rich radishes |
-
2003
- 2003-04-13 CN CNB031228062A patent/CN1256405C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1458225A (en) | 2003-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101921604B (en) | Dry distillation charring method for bamboos | |
| CN1256405C (en) | Method for continuous dry distillation and carbonization for wood and bamboo | |
| CN101514291B (en) | Method for dry quenching by internal heat and low temperature carbonization of coal | |
| CN102911683A (en) | Carbonizing system and carbonizing process of wood materials | |
| CN205556584U (en) | System for utilize living beings to carry out charcoal, gas, liquid, oily coproduction | |
| CN102776007A (en) | Continuous biomass pyrolytic carbon gas-oil poly-generation system | |
| CN104017591A (en) | Continuous pyrolyzing and carbonizing device for agricultural and forestal biomass | |
| CN202865173U (en) | A carbonization system for wood raw materials | |
| AU2010295138B2 (en) | External combustion and internal heating type coal retort furnace | |
| CN105062521A (en) | Rotary-type continuous pyrolyzing straw carbonizing furnace | |
| CN110240913A (en) | A kind of crop straw carbonizing furnace and its carbonizing method | |
| CN103031139A (en) | Device and method for preparing bio-oil through rapid biomass pyrolysis | |
| CN102925180B (en) | Oil shale external heat radiation type retort | |
| CN103484138B (en) | Manufacturing process and equipment of bamboo charcoal | |
| CN204939394U (en) | Rotary type continuous pyrolysis stalk coke oven | |
| CN102206498A (en) | Method for firing high-density bamboo charcoal by using medium-small diameter bamboos | |
| CN104031666A (en) | Bamboo charring kiln with flue gas residual heat recycling function | |
| CN103466614B (en) | Activated carbon production technology | |
| CN101993703A (en) | Oil shale oven and carbonification process | |
| CN202808714U (en) | Comprehensive utilization device of low metamorphic soft coal | |
| CN1064062A (en) | With rice husk, rice straw is the method for raw material preparing silicon carbide | |
| CN108504369B (en) | Biomass carbonization destructive distillation purification recovery device and method | |
| CN113046105B (en) | Green and environmentally friendly mechanical bamboo charcoal carbonization kiln and flue gas purification method | |
| CN214735556U (en) | Green environment-friendly mechanical bamboo charcoal carbonization kiln | |
| CN201041367Y (en) | Straw heating stove |
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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060517 Termination date: 20140413 |