CN102199455A - Purification system of biomass pyrolysis gas - Google Patents
Purification system of biomass pyrolysis gas Download PDFInfo
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- CN102199455A CN102199455A CN2011101084759A CN201110108475A CN102199455A CN 102199455 A CN102199455 A CN 102199455A CN 2011101084759 A CN2011101084759 A CN 2011101084759A CN 201110108475 A CN201110108475 A CN 201110108475A CN 102199455 A CN102199455 A CN 102199455A
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- heat exchanger
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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
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Abstract
The invention relates to a purifying system of a biomass pyrolysis gas, comprising a pyrolysis furnace and a dry distillation kettle arranged inside the pyrolysis furnace, wherein the dry distillation kettle is connected with a water sealer, the other end of the water sealer is connected with a primary heat exchanger, the other end of the primary heat exchanger is connected with a secondary heat exchanger, the other end of the secondary heat exchanger is connected with a primary high-voltage electrostatic detarrer, and the other end of the primary high-voltage electrostatic detarrer is connected with a secondary high-voltage electrostatic detarrer after sequentially passing through a washing tower and a filter. The purification system not only has better wood tar removing effect, but also has simpler equipment and lower energy consumption.
Description
Technical field
The present invention relates to a kind of gas cleaning system, relate in particular to a kind of purification system of pyrolysis gas of biomass, specifically be applicable to the purification of stalk rod destructive distillation gas.
Background technology
At present; mainly use Nonrenewable resources such as coal, oil, Sweet natural gas as main fuel in the world; but these fuel can produce a large amount of obnoxious flavour and dust in the incendiary process; pollute the environment; and pyrolysis gas of biomass is that biomass or organic waste are carried out destructive distillation under the anoxybiotic condition, thus a kind of inflammable gas that produces, and this kind pyrolysis gas not only can utilization of waste material; the protection environment, and burning the time does not pollute the environment.
But in the manufacturing processed of pyrolysis gas of biomass, the temperature of the pyrolysis gas of biomass that retort comes out is usually 600 ℃ of 500 –, and can produce a large amount of wood tar oil this moment, and is clean as not removing, wood tar oil will very fast blocking pipe and damage equipment, thereby production can't normally be carried out.Existing technology all is to remove wood tar oil by wet type WATER-WASHING METHOD or dry type filtration method, and these methods not only need to adopt complex apparatus, and energy consumption is too high, and decontamination effect improving is relatively poor, and economic benefit is lower, has a strong impact on applying of pyrolysis gas of biomass.
The Chinese patent Granted publication number is CN101474519B, Granted publication day is that the patent of invention on December 22nd, 2010 discloses a kind of composite filtering equipment for biomass gas, comprise water-bath spray thrower, interchanger and dry filter, this three forms the integral type composite structure, its inside is communicated to the inlet plenum of interchanger successively from the top of described water-bath spray thrower by air delivering pipeline, be communicated to the bottom of described dry filter again from the discharge chamber of interchanger, be provided with heat-insulating layer between water-bath spray thrower and the dry filter.Though this design by do wet filter combine, biological fuel gas that multiple times of filtration and the mode that combines of repeatedly lowering the temperature can access higher degree, but it is the dry type filtration method, the equipment more complicated that adopts, not only energy consumption is higher, and it is relatively poor to take off the wood tar oil effect, has influenced applying of pyrolysis gas of biomass.
Summary of the invention
The objective of the invention is to overcome the equipment more complicated, the energy consumption that exist in the prior art higher, take off relatively poor defective of wood tar oil effect and problem, provide that a kind of equipment is fairly simple, energy consumption is lower, take off the wood tar oil effect purification system of pyrolysis gas of biomass preferably.
For realizing above purpose, technical solution of the present invention is: a kind of purification system of pyrolysis gas of biomass, comprise pyrolysis oven and the inner destructive distillation Fu that is provided with thereof, described destructive distillation Fu is connected with the one-level heat exchanger, and the other end of one-level heat exchanger is caught the tar device with the one-level high pressure static electricity and is connected; Described purification system comprises that also liquid packing and secondary high pressure static electricity catch the tar device, one end of liquid packing is connected with destructive distillation Fu, the other end is connected with the one-level heat exchanger, the other end of one-level heat exchanger is caught the tar device with the one-level high pressure static electricity and is connected, and the other end that the one-level high pressure static electricity is caught the tar device is caught the tar device with the secondary high pressure static electricity and is connected.
Described purification system also comprises two-stage heat exchanger, and an end of two-stage heat exchanger is connected with the one-level heat exchanger, and the other end is caught the tar device with the one-level high pressure static electricity and is connected.
Described purification system also comprises washing tower and strainer, and an end of washing tower is connected with the other end that the one-level high pressure static electricity is caught the tar device, and the other end of washing tower is connected with strainer, and the other end of strainer is caught the tar device with the secondary high pressure static electricity and is connected.
Compared with prior art, beneficial effect of the present invention is:
1, because the purification system of a kind of pyrolysis gas of biomass of the present invention comprises two-stage heat exchanger and two-stage high pressure static electricity and catches the tar device, the pyrolysis gas that comes out from destructive distillation Fu is successively through liquid packing, two-stage heat exchanger, the two-stage high pressure static electricity enters gas holder after catching the tar device, liquid packing and two-stage heat exchanger help separating out wood vinegar by cooling, thereby be convenient to catch in the tar device and remove wood tar oil at high pressure static electricity, and high pressure static electricity is caught the two-stage design of tar device, can guarantee to remove to the full extent wood tar oil, has decontamination effect improving preferably, especially catch also to design between the tar device at the two-stage high pressure static electricity washing tower and strainer are arranged, be more conducive to improve the removal effect of wood tar oil, thereby make that to remove the foreign matter content that after heat vents one's spleen lower, calorific value is higher, gaseous mass is stable, its wood tar oil content is lower than the 10mg/ cubic meter, far below the national standard of 50mg/ cubic meter.Therefore it is better that the present invention takes off the wood tar oil effect.
2, because comprising liquid packing, two-stage heat exchanger, two-stage high pressure static electricity, the purification system of a kind of pyrolysis gas of biomass of the present invention catches tar device, washing tower and strainer, only just can finish removing of wood tar oil preferably by cooperatively interacting of these equipment, integral device comparatively small amt not only, energy consumption is lower, and clear in structure, be convenient to arrange, help applying of stalk rod dry distillation gas production.Therefore not only equipment is fairly simple in the present invention, and energy consumption is lower.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: pyrolysis oven 1, destructive distillation Fu 2, liquid packing 3, one-level heat exchanger 4, two-stage heat exchanger 5, the one-level high pressure static electricity is caught tar device 6, washing tower 7, strainer 8, the secondary high pressure static electricity is caught tar device 9.
Embodiment
The present invention is further detailed explanation below in conjunction with description of drawings and embodiment
Referring to Fig. 1, a kind of purification system of pyrolysis gas of biomass comprises pyrolysis oven 1 and the inner destructive distillation Fu 2 that is provided with thereof, and described destructive distillation Fu 2 is connected with one-level heat exchanger 4, and the other end of one-level heat exchanger 4 is caught tar device 6 with the one-level high pressure static electricity and is connected; Described purification system comprises that also liquid packing 3 and secondary high pressure static electricity catch tar device 9, one end of liquid packing 3 is connected with destructive distillation Fu 2, the other end is connected with one-level heat exchanger 4, the other end of one-level heat exchanger 4 is caught tar device 6 with the one-level high pressure static electricity and is connected, and the other end that the one-level high pressure static electricity is caught tar device 6 is caught tar device 9 with the secondary high pressure static electricity and is connected.
Described purification system also comprises two-stage heat exchanger 5, and an end of two-stage heat exchanger 5 is connected with one-level heat exchanger 4, and the other end is caught tar device 6 with the one-level high pressure static electricity and is connected.
Described purification system also comprises washing tower 7 and strainer 8, one end of washing tower 7 is connected with the other end that the one-level high pressure static electricity is caught tar device 6, the other end of washing tower 7 is connected with strainer 8, and the other end of strainer 8 is caught tar device 9 with the secondary high pressure static electricity and is connected.
During use, destructive distillation Fu 2 in the native system is successively through liquid packing 3, one-level heat exchanger 4, two-stage heat exchanger 5, the one-level high pressure static electricity is caught tar device 6, washing tower 7, strainer 8, the secondary high pressure static electricity is caught tar device 9 and is connected with gas holder, wherein, by pyrolysis oven 1,2 couples of destructive distillation Fu carry out destructive distillation such as biological materials such as stalk rods, thereby generation pyrolysis gas of biomass, after this pyrolysis gas comes out from retort 2, after at first cooling off through liquid packing 3 and one-level heat exchanger 4, separate out the part wood vinegar, gas enters two-stage heat exchanger 5 subsequently and cools off once more, further separate out wood vinegar, this moment, gas temperature dropped to about 100 ℃, enter the one-level high pressure static electricity then and catch tar device 6 to remove wood tar oil pearl and dust bigger in the gas, pass through washing tower 7 and strainer 8 again, enter the secondary high pressure static electricity then and catch tar device 9 removing trickle wood tar oil grain and dust less in the gas, thereby make destructive distillation be so incensed that further purification.Native system takes off not only that wood tar oil is effective, and energy consumption is little, and foreign matter content is low, the calorific value height, gaseous mass is stable, and wood tar oil content is lower than the 10mg/ cubic meter in the gas of its output, far below the national standard of 50mg/ cubic meter, native system also is applicable to the purification of other biological matter system gas.
Therefore it is better that the present invention not only takes off the wood tar oil effect, and equipment is fairly simple, energy consumption is lower.
Claims (3)
1. the purification system of a pyrolysis gas of biomass, comprise pyrolysis oven (1) and the inner destructive distillation Fu (2) that is provided with thereof, described destructive distillation Fu (2) is connected with one-level heat exchanger (4), the other end of one-level heat exchanger (4) is caught tar device (6) with the one-level high pressure static electricity and is connected, it is characterized in that: described purification system comprises that also liquid packing (3) and secondary high pressure static electricity catch tar device (9), one end of liquid packing (3) is connected with destructive distillation Fu (2), the other end is connected with one-level heat exchanger (4), the other end of one-level heat exchanger (4) is caught tar device (6) with the one-level high pressure static electricity and is connected, and the other end that the one-level high pressure static electricity is caught tar device (6) is caught tar device (9) with the secondary high pressure static electricity and is connected.
2. the purification system of a kind of pyrolysis gas of biomass according to claim 1, it is characterized in that: described purification system also comprises two-stage heat exchanger (5), one end of two-stage heat exchanger (5) is connected with one-level heat exchanger (4), and the other end is caught tar device (6) with the one-level high pressure static electricity and is connected.
3. the purification system of a kind of pyrolysis gas of biomass according to claim 2, it is characterized in that: described purification system also comprises washing tower (7) and strainer (8), one end of washing tower (7) is connected with the other end that the one-level high pressure static electricity is caught tar device (6), the other end of washing tower (7) is connected with strainer (8), and the other end of strainer (8) is caught tar device (9) with the secondary high pressure static electricity and is connected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101084759A CN102199455A (en) | 2011-04-28 | 2011-04-28 | Purification system of biomass pyrolysis gas |
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| CN2011101084759A CN102199455A (en) | 2011-04-28 | 2011-04-28 | Purification system of biomass pyrolysis gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105885889A (en) * | 2014-10-08 | 2016-08-24 | 北京仁禾伟业新能源科技有限公司 | Biomass anaerobic low-temperature dry distillation product separating system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB759493A (en) * | 1952-04-18 | 1956-10-17 | Brennstoff Technik G M B H | Process and equipment for the treatment of gases from low - temperature carbonization, more particularly of coal, utilising electrostatic precipitation |
| US4563195A (en) * | 1984-11-13 | 1986-01-07 | Dravo Corporation | Method for treatment of tar-bearing fuel gas |
| CN200999238Y (en) * | 2007-02-01 | 2008-01-02 | 周泽宇 | Biomass themal pyrolytic gas dust removing-washing-fractional distillation-decoking purification-storing apparatus |
| JP2009001602A (en) * | 2007-06-19 | 2009-01-08 | Ihi Corp | Cleaning method and apparatus for gassified gas |
| CN201296745Y (en) * | 2008-08-26 | 2009-08-26 | 浙江大学 | Fluidized bed cracking gas-purifying and tar-recovery system |
| CN101613626A (en) * | 2009-07-09 | 2009-12-30 | 唐山雷浩能源技术装备有限公司 | A kind of technology of production cooled coal gas of no discharge of phenolic water |
| CN101974353A (en) * | 2010-08-09 | 2011-02-16 | 高邮市林源科技开发有限公司 | Biomass gasification fuel gas deep purification process |
-
2011
- 2011-04-28 CN CN2011101084759A patent/CN102199455A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB759493A (en) * | 1952-04-18 | 1956-10-17 | Brennstoff Technik G M B H | Process and equipment for the treatment of gases from low - temperature carbonization, more particularly of coal, utilising electrostatic precipitation |
| US4563195A (en) * | 1984-11-13 | 1986-01-07 | Dravo Corporation | Method for treatment of tar-bearing fuel gas |
| CN200999238Y (en) * | 2007-02-01 | 2008-01-02 | 周泽宇 | Biomass themal pyrolytic gas dust removing-washing-fractional distillation-decoking purification-storing apparatus |
| JP2009001602A (en) * | 2007-06-19 | 2009-01-08 | Ihi Corp | Cleaning method and apparatus for gassified gas |
| CN201296745Y (en) * | 2008-08-26 | 2009-08-26 | 浙江大学 | Fluidized bed cracking gas-purifying and tar-recovery system |
| CN101613626A (en) * | 2009-07-09 | 2009-12-30 | 唐山雷浩能源技术装备有限公司 | A kind of technology of production cooled coal gas of no discharge of phenolic water |
| CN101974353A (en) * | 2010-08-09 | 2011-02-16 | 高邮市林源科技开发有限公司 | Biomass gasification fuel gas deep purification process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105885889A (en) * | 2014-10-08 | 2016-08-24 | 北京仁禾伟业新能源科技有限公司 | Biomass anaerobic low-temperature dry distillation product separating system |
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