CN101130698A - Method and apparatus for pyrolysis of biomass gas tar oil - Google Patents
Method and apparatus for pyrolysis of biomass gas tar oil Download PDFInfo
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- CN101130698A CN101130698A CNA2007100170233A CN200710017023A CN101130698A CN 101130698 A CN101130698 A CN 101130698A CN A2007100170233 A CNA2007100170233 A CN A2007100170233A CN 200710017023 A CN200710017023 A CN 200710017023A CN 101130698 A CN101130698 A CN 101130698A
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- pyrolysis
- reversing valve
- high temperature
- tar oil
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Abstract
The invention discloses a high temperature cracking method of biomass gas tar and device, which comprises the following steps: (A) gasifying biomass in gasification stove; (B) washing; filtering; (C) cracking under high temperature; leading the 250-350 deg. c biomass gas form the step (A) and (B) into private high temperature cracking oven; proceeding the cracking reaction with temperature at 800-1200 deg. c; generating marsh gas with low carbon, ethane and ethene combustible gas; purifying; entering into user net; setting the device as controller, air inlet pipe, change-over valve, flame couple, discharge pipe, cracking furnace and heater; setting the cracking furnace as triple-fired structure; setting the middle as high temperature heating segment; arranging the two sides as low temperature storing segment; assembling the change-over valve at the two ends of the cracking furnace; connecting the one end of the valve to the air inlet pipe; connecting the other end to the discharge pipe; assembling the flame couple on the discharge pipe and the change-over valve; electric-connecting to the controller.
Description
One, technical field
The present invention relates to a kind of biomass be carried out the cracked device, particularly a kind of pyrolysis of biomass gas tar oil method and device at the contained tar of inflammable gas that gasification or retort process produce.
Two, background technology
At present, contain a large amount of tar in the inflammable gas that gasifying biomass or destructive distillation produce, owing to there is not effective and feasible removal methods to make the use of such gas be subjected to significant limitation.The general coarse filtration methods such as washing, filtration that adopt, the decoking rate is lower, and the effect of gas sweetening is difficult to reach actual service requirements.The tar that comes out from the gas coarse filtration in addition, it is too many to contain impurity, can't utilize once more, has also brought secondary pollution to environment.
Three, summary of the invention
The purpose of this invention is to provide a kind of pyrolysis of biomass gas tar oil method, adopt the method for isolated plant with positive adverse current catalysis Pintsch process, the shortcoming or the deficiency of above-mentioned prior art both can have been overcome or avoid, can solve the biomass gas tar oil purifying problem again, make tar become the available energy simultaneously, stop secondary environmental pollution.
Pyrolysis of biomass gas tar oil method of the present invention mainly comprises the gasification of step (A) biomass gasifying furnace; (B) washing, filtration, also comprise (C) Pintsch process step, described (C) Pintsch process step is to carry out in the pyrolysis device of special use, by (A) and (B) the step temperature of discharging be 250 ℃～350 ℃ biogas, enter special-purpose high-temperature cracking furnace, high temperature through 800 ℃～1200 ℃ carries out scission reaction, generates methane, ethane and the vinyl inflammable gas of low-carbon (LC); Purified gas enters user network and uses.
Wherein, during described step (C) Pintsch process, by automatically controlled high temperature reversing valve control the carrying out adverse current catalytic pyrolysis in the device.
Another object of the present invention provides a kind of pyrolysis of biomass gas tar oil device; make the contained tar of biomass gas Pintsch process under the effect of catalyzer with this device, remove tar. and the tar foreign matter content is reduced; reach service requirements, the protection environment.Comprise controller, inlet pipe, reversing valve, thermopair, vapor pipe, pyrolyzer and well heater, described pyrolyzer is a three stage structure, the centre is the heat section, two ends are the low temperature memory paragraph, described pyrolyzer two ends are separately installed with reversing valve, one end of this valve is connected with inlet pipe, and the other end is connected with vapor pipe, and the thermopair that is electrically connected with controller is installed on vapor pipe and the reversing valve.
Wherein, described reversing valve is the high temperature resistant reversing valve of electric-controlled type, switch commutation at any time under the control of controller.Described pyrolyzer middle part is equipped with well heater and temperature sensor.Described well heater is an electric heater.
The present invention has following advantage compared with prior art:
1, the tar removal effect in the biomass gas is good, and the decoking rate surpasses 90%.
2, be converted into not condensable low-carbon (LC) gas behind the coke tar cracking, both can improve the combustion gas quality, avoided secondary pollution problems again, improved the calorific value of inflammable gas simultaneously.
3, the high-temperature fuel gas in the pyrolyzer just, adverse current guaranteed that the outlet fuel gas temperature is no more than design temperature, and most of heat can remain in the pyrolyzer, has reduced the power consumption of system, has improved the cleavage rate of tar.
Four, description of drawings
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is a pyrolyzer structural representation of the present invention.
Five, embodiment
A kind of pyrolysis of biomass gas tar oil method mainly comprises the gasification of step (A) biomass gasifying furnace; (B) washing, filtration, also comprise (C) Pintsch process step, (C) the Pintsch process step is to carry out in the pyrolysis device of special use, by (A) and (B) the step temperature of discharging be 250 ℃～350 ℃ biogas, enter special-purpose high-temperature cracking furnace 6, high temperature through 800 ℃～1200 ℃ carries out scission reaction, generates methane, ethane and the vinyl inflammable gas of low-carbon (LC); Purified gas enters user network and uses.
During step (C) Pintsch process, control and carry out the adverse current catalytic pyrolysis by the automatically controlled high temperature reversing valve 3 in the device.
A kind of pyrolysis of biomass gas tar oil device, consult Fig. 1-Fig. 2, comprise controller, inlet pipe, reversing valve, thermopair, vapor pipe, pyrolyzer and well heater 7, pyrolyzer 6 is a three stage structure, and the centre is a heat section 62, and two ends are low temperature memory paragraph 61, the pyrolyzer two ends are separately installed with reversing valve 3, one end of this valve is connected with inlet pipe 2, and the other end is connected with vapor pipe 5, and the thermopair 4 that is electrically connected with controller 1 is installed on vapor pipe and the reversing valve.
Reversing valve 3 is the high temperature resistant reversing valve of electric-controlled type, switch commutation at any time under the control of controller.Pyrolyzer 6 middle parts are equipped with well heater 7 and temperature sensor 63.Well heater 7 is an electric heater.
During operation, adopt adverse current catalysis Pintsch process mode, at first connect electric heater 7 power supplys, pyrolyzer 6 high temperature section are heated to 800 ℃～1200 ℃, and biogas enters inlet pipe 2 with 250 ℃～350 ℃ temperature then, at this moment, automatically controlled high temperature reversing valve 3 is communicated with ab, ac disconnects, and automatically controlled high temperature reversing valve 3 disconnects ed, and df is communicated with, biogas enters pyrolyzer 6 with forward, in high temperature section, tar obtains cracking under catalyst action, and purified gas is through vapor pipe 5 discharge systems.Controller 1 is gathered exhaust temperatures by thermopair 4, and when exhaust temperature reached 450 ℃ of preset temperatures, the automatically controlled high temperature reversing valve 3 of controller 1 control was done the commutation action, ab disconnects, bc is communicated with, and ed is communicated with, and df disconnects, biogas is with reversed flow, continue cracking in high temperature section and purify, when thermopair 4 recorded exhaust temperature and is 450 ℃, controller 1 sent signal, automatically controlled high temperature reversing valve 3 is made switch operation, so forms the successive cracking and purifies.
Claims (6)
1. a pyrolysis of biomass gas tar oil method mainly comprises the gasification of step (A) biomass gasifying furnace; (B) washing, filtration, it is characterized in that also comprising (C) Pintsch process step, described (C) Pintsch process step is to carry out in the pyrolysis device of special use, by (A) and (B) the step temperature of discharging be 250 ℃～350 ℃ biogas, enter special-purpose high-temperature cracking furnace, high temperature through 800 ℃～1200 ℃ carries out scission reaction, generates methane, ethane and the vinyl inflammable gas of low-carbon (LC); Purified gas enters user network and uses.
2. pyrolysis of biomass gas tar oil method according to claim 1 is when is characterized in that described step (C) Pintsch process, by automatically controlled high temperature reversing valve control the carrying out adverse current catalytic pyrolysis in the device.
3. pyrolysis of biomass gas tar oil device, comprise controller, inlet pipe, reversing valve, thermopair, vapor pipe, pyrolyzer and well heater, it is characterized in that described pyrolyzer is a three stage structure, the centre is the heat section, two ends are the low temperature memory paragraph, and described pyrolyzer two ends are separately installed with reversing valve, and an end of this valve is connected with inlet pipe, the other end is connected with vapor pipe, and the thermopair that is electrically connected with controller is installed on vapor pipe and the reversing valve.
4. pyrolysis of biomass gas tar oil device according to claim 3 is characterized in that described reversing valve is the high temperature resistant reversing valve of electric-controlled type, switch commutation at any time under the control of controller.
5. pyrolysis of biomass gas tar oil device according to claim 3 is characterized in that described pyrolyzer middle part is equipped with well heater and temperature sensor.
6. according to claim 3 or 5 described pyrolysis of biomass gas tar oil devices, it is characterized in that described well heater is an electric heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100170233A CN101130698B (en) | 2007-08-15 | 2007-08-15 | Method and apparatus for pyrolysis of biomass gas tar oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100170233A CN101130698B (en) | 2007-08-15 | 2007-08-15 | Method and apparatus for pyrolysis of biomass gas tar oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101130698A true CN101130698A (en) | 2008-02-27 |
| CN101130698B CN101130698B (en) | 2011-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007100170233A Expired - Fee Related CN101130698B (en) | 2007-08-15 | 2007-08-15 | Method and apparatus for pyrolysis of biomass gas tar oil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108611109A (en) * | 2018-04-17 | 2018-10-02 | 东南大学 | Three-section type heating device and charcoal preparation system and preparation method |
-
2007
- 2007-08-15 CN CN2007100170233A patent/CN101130698B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108611109A (en) * | 2018-04-17 | 2018-10-02 | 东南大学 | Three-section type heating device and charcoal preparation system and preparation method |
| CN108611109B (en) * | 2018-04-17 | 2020-04-24 | 东南大学 | Three-section type heating device, and biological carbon preparation system and preparation method |
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| Publication number | Publication date |
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| CN101130698B (en) | 2011-09-21 |
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