CN101445734A - Rapid pyrogenation bubbling type secondary spray condensing unit for wood and method thereof - Google Patents
Rapid pyrogenation bubbling type secondary spray condensing unit for wood and method thereof Download PDFInfo
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- CN101445734A CN101445734A CNA2008101348064A CN200810134806A CN101445734A CN 101445734 A CN101445734 A CN 101445734A CN A2008101348064 A CNA2008101348064 A CN A2008101348064A CN 200810134806 A CN200810134806 A CN 200810134806A CN 101445734 A CN101445734 A CN 101445734A
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- condenser
- pyrolysis
- spray
- condensation
- bubbling
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- 239000007921 spray Substances 0.000 title claims abstract description 38
- 230000005587 bubbling Effects 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000002023 wood Substances 0.000 title abstract 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052802 copper Inorganic materials 0.000 claims abstract description 15
- 239000010949 copper Substances 0.000 claims abstract description 15
- 239000012530 fluid Substances 0.000 claims abstract description 9
- 239000011521 glass Substances 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 3
- 229910052751 metal Inorganic materials 0.000 claims abstract description 3
- 238000000197 pyrolysis Methods 0.000 claims description 58
- 238000009833 condensation Methods 0.000 claims description 30
- 230000005494 condensation Effects 0.000 claims description 30
- 239000000498 cooling water Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 4
- 238000002474 experimental method Methods 0.000 abstract description 3
- 241000218652 Larix Species 0.000 abstract 1
- 235000005590 Larix decidua Nutrition 0.000 abstract 1
- 238000000889 atomisation Methods 0.000 abstract 1
- 238000003889 chemical engineering Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Images
Classifications
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- 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
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention relates to a rapid pyrogenation bubbling type secondary spray condensing unit for wood and a method thereof, belonging to the technical field of energy chemical engineering. The condensing unit of the invention comprises a column-shaped organic glass condenser, wherein, a circular copper tube heat exchanger and a metal inlet pipe are arranged inside the condenser; a spray header is arranged at the top of the inlet pipe; a circular atomization spray pipe is arranged directly over the circular copper tube heat exchanger in a vertical way; pyrolytic oil condensate is arranged at the lower part of the condenser; the condensing unit also comprises a circulating pump, a pipeline, etc. The condensing method comprises the following steps: pyrolytic vapor is directly contacted with pyrolytic oil condensate; then bubbling bed type condensing is formed at the bottom part of the condenser; secondary spray is carried out on the uncondensed pyrolytic vapor in the condenser. An experiment shows that the rapid pyrogenation bubbling type secondary spray condensing unit for wood and the method thereof can meet the requirements of condensing for a sprouted circulating fluid bed rapid pyrogenation system for larch wood with the treatment capacity of 5Kg/h and all oil productivity can be above 60% under different technique conditions.
Description
Technical field
The present invention relates to a kind of condensing works and method that is used for timber rapid pyrolysis.Belong to the derived energy chemical technical field.
Background technology
In the timber rapid pyrolysis system, further decompose for fear of the pyrolysis steam, require condenser system to have rate of heat transfer and lower condensing temperature fast and efficiently, and the quality of condensation effect directly have influence on pyrolysis oil productive rate and quality.Condensation effect and heat exchange mode, operational condition are relevant, also relevant with heat transferring medium, thermal capacitance, material etc.The heat exchange form of condensation at present has direct contact, indirect contact, directly contact combines with indirect contact etc., the indirect type heat exchange mode is adopted in the condensation that is used for the pyrolysis steam mostly, the a plurality of condensers of general employing are composed in series, high temperature pyrolysis steam obtains pyrolysis oil by the wall cooling, but this condensing mode is subjected to the influence of gas flow rate, heat transferring medium, condenser material, service temperature and pyrolysis oil characteristic etc., and efficient is generally not high.Cross low condensing temperature pyrolysis liquid is condensed and blocking pipe, the influence operation; Condensing temperature is too high, and rate of heat transfer is reduced, and prolongs the residence time of pyrolysis steam, increases the meeting of secondary disassembler, and the pyrolysis oil productive rate also can reduce.The complex mixture that the pyrolysis steam is made up of multiple compound, products such as phenol that the xylogen pyrolysis comes out, tar are arranged, products such as carbohydrate that Mierocrystalline cellulose, Mierocrystalline cellulose pyrolysis come out, aldehyde, acid are arranged, these pyrolysis saturated with vapor dew points are different, its condensing temperature also is not quite similar, therefore, select that suitably condensing works and method are most important for timber rapid pyrolysis liquefaction.
Summary of the invention
The object of the invention is to provide the bubbling type secondary spray condensation device and method of the rapid condensation timber rapid pyrolysis of a kind of energy steam, to improve the productive rate and the quality of pyrolysis oil.
The concrete structural design scheme of condensing works is as follows:
Be used for timber rapid pyrolysis bubbling type secondary spray condensing works, comprise cylindrical tube shape synthetic glass condenser, an annular copper tube heat-exchanger and a metal inlet pipe are equipped with in condenser inside; The inlet pipe top is provided with spray header, is provided with an annular atomizing spray pipe directly over vertical annular copper pipe heat exchanger; Condenser is the pyrolysis oil phlegma.
Condenser overhead one side is provided with fluid inlet and the inlet mouth that links to each other with spray header, and a side is provided with can not condensation exhaust mouth and annular copper tube heat-exchanger cooling water intakeoutfall, and opposite side is provided with annular atomizing spray pipe fluid inlet.
Condenser inlet pipe bottom is provided with nozzle, and nozzle stretches in the pyrolysis oil phlegma; Be provided with the self-priming pump inlet in condenser one side, the pyrolysis oil phlegma leads to condenser overhead inlet pipe spray and annular atomizing spray fluid inlet by pipeline; Condenser leaves liquid outlet near bottom sides.
Described condenser diameter 250mm, height 1000mm; Annular copper pipe vertical height 600mm in the condenser, intake manifold length 900mm; The dark 350mm of pyrolysis oil phlegma.
Described annular atomizing spray pipe, adopting diameter is the 20mm stainless steel tube, evenly having 20 diameters under the steel pipe is 4mm atomizing aperture.
The long 20000mm of described annular copper tube heat-exchanger, caliber 5mm.
Described inlet pipe diameter is 32mm, and it is the 3mm aperture that nozzle is evenly equipped with diameter.
Technical characterictic of the present invention is that apparatus structure is simple, and industry is amplified easily, and condensation effect is good, and cost is low.
The invention provides a kind of timber rapid pyrolysis bubbling type secondary spray condensation method that is used for, it is characterized in that this method is phlegma with the pyrolysis oil, adopt the condensation of bubbling type secondary spray, idiographic flow is as follows:
1) the pyrolysis steam with once spray liquid mixing, enter in the condenser phlegma by inlet pipe.
2) uncooled pyrolysis steam is overflowed by the inlet pipe bottom nozzle, forms the bubbling style condensation.The inlet pipe bottom is provided with the nozzle purpose diminishes bubble, increases the condensation contact area.
3) in the bubble not the pyrolysis steam of total condensation move upward, annular atomizing spray pipe carries out secondary spraying to it, forms convective heat exchange with the pyrolysis steam.
4) the pyrolysis oil phlegma is sprayed on the annular copper pipe, and the heat of generation is taken condenser out of by annular copper pipe internal cooling water.
5) condensable gases is not discharged by the condenser upper air vent.
Description of drawings
Fig. 1 is apparatus of the present invention structure iron,
Fig. 2 is Figure 1A-A cross sectional plan view,
Fig. 3 is Figure 1B-B section upward view.
The present invention has the following advantages and the high-lighting progress compared with prior art:
1) pyrolysis oil is mixed rapidly with the pyrolysis steam as condensate liquid, has suppressed the generation of secondary pyrolysis; 2) the pyrolysis steam once Behind the spray, form the bubble type condensation with condensate liquid, allow the further condensation of lower boiling component has increased condensation efficiency in the pyrolysis steam, Carry out again afterwards secondary spraying, make condensation more fully thoroughly, effectively raise pyrolysis oil productive rate and quality; 3) condenser dress Interposed structure is simple, is easy to processing, and easy to operate, the condensation cost is low, and effect is remarkable, realizes easily the industry amplification.
Embodiment
Below in conjunction with accompanying drawing concrete structure of the present invention and enforcement are further described:
Fig. 1 is the one-piece construction synoptic diagram of timber rapid pyrolysis bubbling type secondary spray condensing works provided by the invention, and this device mainly comprises: the 1-leakage fluid dram; 2-synthetic glass condenser; 3-annular copper tube heat-exchanger; The 4-inlet pipe; The 5-cooling water outlet; The 6-cooling water inlet; The 7-inlet mouth; The 8-spray header; The 9-venting port; 10-annular atomizing spray pipe; 11-self-priming recycle pump; The 12-annular atomizing spray mouth of pipe; 13-bubbling style nozzle.
Embodiment 1: spray condenser system for for example shown in Figure 1 with the bubbling type secondary that is used for the Larchwood spout circulating fluidized bed fast pyrogenation of treatment capacity 5kg/h system, its working process is: 1. pyrolysis steam and phlegma directly contact and enter inlet pipe 4 and 2. form the 3. uncooled pyrolysis steam of bubbling style condensation at inlet pipe bottom nozzle 13 places and taken out of by annular copper pipe internal cooling water at the 4. unnecessary heat of the middle part of condenser time condensation, and unnecessary pyrolysis oil phlegma is discharged by leakage fluid dram 1.
Experiment shows that this timber rapid pyrolysis bubbling type secondary spray condensation device and method well satisfies the needs that treatment capacity is the Larchwood spout circulating fluidized bed fast pyrogenation system condensing of 5kg/h.As material particular diameter 0.45～0.9mm, 500 ℃ of temperature of reaction, gas flow 6m
3/ h, during feeding rate 20r/min, the pyrolysis oil color is pale brown look, productive rate is 65.9%.
Embodiment 2: spray condenser system for for example shown in Figure 1 with the bubbling type secondary that is used for the Larchwood spout circulating fluidized bed fast pyrogenation of treatment capacity 5kg/h system, its working process is with embodiment 1.
Experiment shows that this timber rapid pyrolysis bubbling type secondary spray condensation device and method well satisfies the needs that treatment capacity is the Larchwood spout circulating fluidized bed fast pyrogenation system condensing of 5kg/h.As material particular diameter 0.45～0.9mm, 600 ℃ of temperature of reaction, gas flow 10m
3/ h, during feeding rate 20r/min, the pyrolysis oil color is pale brown look, productive rate is 66.3%.
Claims (3)
1. be used for timber rapid pyrolysis bubbling type secondary spray condensation device and method, it is characterized in that: comprise cylindrical tube shape synthetic glass condenser, an annular copper tube heat-exchanger and a metal inlet pipe are equipped with in condenser inside; The inlet pipe top is provided with spray header, is provided with an annular atomizing spray pipe directly over vertical annular copper pipe heat exchanger; Condenser is the pyrolysis oil phlegma.
Condenser overhead one side is provided with fluid inlet and the inlet mouth that links to each other with spray header, and a side is provided with can not condensation exhaust mouth and annular copper tube heat-exchanger cooling water intakeoutfall, and opposite side is provided with annular atomizing spray pipe fluid inlet.
Condenser inlet pipe bottom is provided with nozzle, and nozzle stretches in the pyrolysis oil phlegma; Be provided with the self-priming pump inlet in condenser one side, the pyrolysis oil phlegma leads to condenser overhead inlet pipe spray and annular atomizing spray fluid inlet by pipeline; Condenser leaves liquid outlet near bottom sides.
The pyrolysis steam directly contacts with the pyrolysis oil phlegma, forms the bubbling style condensation in the condenser bottom then, and uncooled pyrolysis steam carries out secondary spraying in condenser.
2. the timber rapid pyrolysis bubbling type secondary spray condensation device and method that is used for according to claim 1 is characterized in that: synthetic glass condenser diameter 250mm, height 1000mm; Annular copper pipe vertical height 600mm in the condenser, intake manifold length 900mm; The dark 350mm of pyrolysis oil phlegma.
3. the timber rapid pyrolysis bubbling type secondary spray condensation device and method that is used for according to claim 1, it is characterized in that: the pyrolysis steam directly contacts with the pyrolysis oil phlegma, form the condensation of bubbling bed formula then in the condenser bottom, uncooled pyrolysis steam carries out the secondary spraying condensation in condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101348064A CN101445734A (en) | 2008-07-31 | 2008-07-31 | Rapid pyrogenation bubbling type secondary spray condensing unit for wood and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101348064A CN101445734A (en) | 2008-07-31 | 2008-07-31 | Rapid pyrogenation bubbling type secondary spray condensing unit for wood and method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101445734A true CN101445734A (en) | 2009-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101348064A Pending CN101445734A (en) | 2008-07-31 | 2008-07-31 | Rapid pyrogenation bubbling type secondary spray condensing unit for wood and method thereof |
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| CN (1) | CN101445734A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102093903A (en) * | 2009-12-15 | 2011-06-15 | 北京林业大学 | Method and device for recycling heat produced by pyrolytic reaction device |
| CN106590706A (en) * | 2016-12-21 | 2017-04-26 | 北京林业大学 | Vehicle-mounted biomass pyrolysis liquefaction system |
| CN107033944A (en) * | 2017-05-11 | 2017-08-11 | 山东理工大学 | Biomass pyrolytic vapour high-efficiency condensation is collected and separator |
| CN108617709A (en) * | 2018-05-25 | 2018-10-09 | 东营润益生物科技有限公司 | A kind of preparation of novel pure plant based bacteriostat and application process |
| CN110141929A (en) * | 2019-05-23 | 2019-08-20 | 任丘市华隆高新特技术开发有限公司 | Organic volatile VOCs processing unit |
-
2008
- 2008-07-31 CN CNA2008101348064A patent/CN101445734A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102093903A (en) * | 2009-12-15 | 2011-06-15 | 北京林业大学 | Method and device for recycling heat produced by pyrolytic reaction device |
| CN106590706A (en) * | 2016-12-21 | 2017-04-26 | 北京林业大学 | Vehicle-mounted biomass pyrolysis liquefaction system |
| CN107033944A (en) * | 2017-05-11 | 2017-08-11 | 山东理工大学 | Biomass pyrolytic vapour high-efficiency condensation is collected and separator |
| CN108617709A (en) * | 2018-05-25 | 2018-10-09 | 东营润益生物科技有限公司 | A kind of preparation of novel pure plant based bacteriostat and application process |
| CN110141929A (en) * | 2019-05-23 | 2019-08-20 | 任丘市华隆高新特技术开发有限公司 | Organic volatile VOCs processing unit |
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| ASS | Succession or assignment of patent right |
Owner name: BEIJING HAIRUNCHUAN INVESTMENT ADVISORY CO., LTD. Free format text: FORMER OWNER: CHANG JIANMIN Effective date: 20090424 |
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Effective date of registration: 20090731 Address after: Postcode 35, Qinghua East Road, Beijing, Haidian District: 100083 Applicant after: Chang Jianmin Address before: Room 501, Huachen Hotel, 15 South Street, west bureau, Beijing, Fengtai District, China: 100073 Applicant before: Beijing Hairunchuan Investment Consultation Co.,Ltd. |
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Effective date of registration: 20100115 Address after: Postcode 35, Qinghua East Road, Beijing, Haidian District: 100083 Applicant after: Beijing Forestry University Address before: Postcode 35, Qinghua East Road, Beijing, Haidian District: 100083 Applicant before: Chang Jianmin |
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Application publication date: 20090603 |