CN101735829A - Process and device for recovering oxidation waste heat of associated gas of biomass carbonization - Google Patents
Process and device for recovering oxidation waste heat of associated gas of biomass carbonization Download PDFInfo
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- CN101735829A CN101735829A CN200910255639A CN200910255639A CN101735829A CN 101735829 A CN101735829 A CN 101735829A CN 200910255639 A CN200910255639 A CN 200910255639A CN 200910255639 A CN200910255639 A CN 200910255639A CN 101735829 A CN101735829 A CN 101735829A
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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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The invention discloses a process for recovering oxidation waste heat of associated gas of biomass carbonization, which comprises the following steps that: liquefied gas and air are mixed and are completely combusted to provide startup energy for the biomass carbonization. The recovery of the oxidation waste heat of the associated gas of the biomass carbonization adopts high-temperature heat countercurrent reversing oxidation technology to perform automatic complete oxidation on the associated gas of the biomass carbonization in a device for recovering the oxidation waste heat of the associated gas of the biomass carbonization; and heat energy released during the oxidation maintains the energy consumed by the oxidation of the associated gas and provides waste heat to the external world. The device comprises a startup preheating system, an associated gas high-temperature countercurrent oxidation system, and an automatic control system, wherein the startup preheating system comprises a mixing burner connected with a high-temperature countercurrent oxidation device, and an air opening regulation valve connected to the mixing burner; the associated gas high-temperature countercurrent oxidation system comprises the high-temperature countercurrent oxidation device and electric control two-way reversing valves connected with the high-temperature countercurrent oxidation device; and the automatic control system comprises an automatic operation control display, a temperature sensor, an ignition device and the electric control two-way reversing valves; and the temperature sensor, the ignition device, and the electric control two-way reversing valves are electrically connected with the automatic operation control display.
Description
One, technical field:
The present invention relates to the recovery of biomass carbonization associated gas and utilize method and apparatus, particularly a kind of associated gas of biomass carbonization oxidation waste heat reclaiming process and device.
Two, background technology
Prior biological matter method for destructive distillation and equipment generally adopt low temperature or high temperature cabonization Processes and apparatus, and during carbonization at low temperature, the accompanying gas calorific value that the biomass carbonization process produces is very low, is difficult to burning utilization under the normal temperature, the direct emptying of present most of low temperature accompanying gas; During high temperature cabonization, the higher relatively calorific value accompanying gas that carbonization process produces is used as the combustion gas utilization after means such as employing purification at present, filtration are handled.Though these class methods also can be received certain effect, there is following shortcoming and defect:
1. the associated gas of biomass carbonization calorific value of low temperature pyrogenation is low, and is not flammable under the normal temperature, and directly emptying causes the waste of energy and the pollution of environment;
2. the associated gas of biomass carbonization of high temperature pyrolysis, the intractability of impurity such as tar and dust is big, with high costs, is difficult to effective utilization;
3. be the associated gas of biomass carbonization oxidation, purification equipment of purpose with the protection environment, level of automation is low, and the complete oxidation rate is low, needs the external world to provide heat energy to keep normal running, and power consumption is high.
Three, summary of the invention
The purpose of this invention is to provide a kind of not only environmental protection but also energy-conservation associated gas of biomass carbonization oxidation waste heat reclaiming process, adopt the elevated temperature heat reflux type, the shortcoming or the deficiency that had both overcome or avoided existing in the above-mentioned prior art, can make the associated gas complete oxidation again, avoid producing discharge of harmful gases because of the escape of complete oxidation gas not.
Associated gas of biomass carbonization oxidation waste heat reclaiming process of the present invention, comprise that the liquefied gas burning starts and associated gas of biomass carbonization oxidation and waste heat recovery, described liquefied gas burning starts, be that liquefied gas and air mix in the mixed burner of associated gas of biomass carbonization oxidation waste-heat recovery device and perfect combustion, for the startup of associated gas of biomass carbonization oxidation residual neat recovering system provides energy.Described associated gas of biomass carbonization oxidation waste heat recovery is carried out in associated gas of biomass carbonization oxidation waste-heat recovery device: (1) adopts elevated temperature heat adverse current commutation oxidizing process, and the associated gas of biomass carbonization of the device inside of flowing through is carried out automatic elevated temperature heat adverse current commutation complete oxidation; (2) reclaim the heat energy that oxidising process discharges, keep associated gas oxidation institute energy requirement on the one hand, provide unnecessary heat energy to the external world on the other hand.
Wherein, described liquefied gas and air mix in the mixed burner of associated gas of biomass carbonization oxidation waste-heat recovery device and perfect combustion, quartz sand medium in the high-temperature flue gas direct heating high temperature counter flow oxidation device after the burning, quartz sand cuts off liquefied gas source after reaching design temperature, and the associated gas of the high quartz sand of flowing through is the oxidized heat energy that discharges simultaneously under the heating of quartz sand medium and catalysis.The adverse current commutation oxidising process of described associated gas of biomass carbonization is controlled execution automatically by the automatically controlled two-way reversing valve and the automatic control indicating meter of handling of associated gas of biomass carbonization oxidation waste-heat recovery device.
Another object of the present invention provides a kind of associated gas of biomass carbonization oxidation waste-heat recovery device, adopt automatically controlled two-way reversing valve and automatic control and high temperature counter flow oxidation system, the shortcoming or the deficiency that had both overcome or avoided existing in the above-mentioned prior art, but complete oxidation associated gas of biomass carbonization again, energy-conserving and environment-protective.
Associated gas of biomass carbonization oxidation waste-heat recovery device of the present invention, comprise the startup pre-heating system, associated gas high temperature counter flow oxidation system, automatic control system, it is characterized in that described startup pre-heating system comprises the mixed burner that is connected with high temperature counter flow oxidation device and is connected in the air degree adjustment valve of mixing burner, described associated gas high temperature counter flow oxidation system comprises high temperature counter flow oxidation device and coupled automatically controlled two-way reversing valve, and described automatic control system comprises automatic manipulation control indicating meter and the temperature sensor that is electrically connected with it thereof, portfire and automatically controlled two-way reversing valve.
Wherein said portfire is installed on mixes in the burner.Be provided with the liquefied gas nozzle in the described mixed burner, and link to each other with the liquefaction source of the gas.Described high temperature counter flow oxidation device inner chamber is mounted with quartz sand.Described temperature sensor is installed on respectively and mixes in burner and the high temperature counter flow oxidation device.Described automatically controlled two-way reversing valve is two covers, parallel mutually being connected on the high temperature counter flow oxidation device.
The present invention has following advantage compared with prior art:
1, rational in infrastructure, to the abundant oxidation of the non-flammable low temperature pyrogenation associated gas of biomass carbonization of normal temperature.
2, energy utilizes the turnover ratio height, and no noxious gas emission is beneficial to environmental protection.
3, design science, low to the associated gas of biomass carbonization processing requirements of high temperature pyrolysis, can realize the cracking of most of tar, the energy utilization rate height.
4, level of automation height, the processes such as open and close of temperature controlling, valve are control fully automatically.
5, low power consuming, energy-saving effect is remarkable, and system starts the supply that need not heat energy in the back normal operation process.
Four, description of drawings
Accompanying drawing is a schematic flow sheet of the present invention.
Five, concrete mode of operation
The present invention includes liquefied gas and air and in the mixed burner of associated gas of biomass carbonization oxidation waste-heat recovery device, mix and perfect combustion, for the startup of associated gas of biomass carbonization oxidation residual neat recovering system provides energy.Described associated gas of biomass carbonization oxidation waste heat recovery is carried out in associated gas of biomass carbonization oxidation waste-heat recovery device: (1) adopts elevated temperature heat adverse current commutation oxidizing process, and the associated gas of biomass carbonization of the device inside of flowing through is carried out automatic elevated temperature heat adverse current commutation complete oxidation; (2) heat energy of oxidising process release is kept associated gas oxidation institute power consumption energy on the one hand, provides unnecessary heat energy to the external world on the other hand.
Liquefied gas and air mix in the mixed burner of associated gas of biomass carbonization oxidation waste-heat recovery device and perfect combustion, quartz sand medium in the high-temperature flue gas direct heating high temperature counter flow oxidation device after the burning, quartz sand cuts off liquefied gas source after reaching design temperature, and the associated gas of the high quartz sand of flowing through is the oxidized heat energy that discharges simultaneously under the heating of quartz sand medium and catalysis.The adverse current of associated gas of biomass carbonization commutation oxidising process by the automatically controlled two-way reversing valve of associated gas of biomass carbonization oxidation waste-heat recovery device with handle the control indicating meter automatically, automatically performs according to the signal of temperature sensor.
Consult accompanying drawing, a kind of associated gas of biomass carbonization oxidation waste-heat recovery device comprises starting pre-heating system, associated gas high temperature counter flow oxidation system, automatic control system.Starting pre-heating system comprises the mixed burner 3 that is connected with high temperature counter flow oxidation device 2 and is connected in the air degree adjustment valve 4 of mixing burner 3.Associated gas high temperature counter flow oxidation system comprises high temperature counter flow oxidation device 2 and coupled automatically controlled two-way reversing valve 1.Automatic control system comprises automatic manipulation control indicating meter 5 and the temperature sensor 6 that is electrically connected with it, portfire 7 and automatically controlled two-way reversing valve 1.Portfire 7 is installed on mixes in the burner 3.Mix in the burner 3 and be provided with liquefied gas nozzle 9, and link to each other with the liquefaction source of the gas.High temperature counter flow oxidation device 2 inner chambers are mounted with quartz sand 8.Temperature sensor 6 is installed on respectively and mixes in burner 3 and the high temperature counter flow oxidation device 2.Automatically controlled two-way reversing valve 1 is two covers, parallel mutually being connected on the high temperature counter flow oxidation device 2.
During operation, start-up course provides energy by liquefied gas, liquefied gas and air mix in mixed burner 3 and burn, and the air capacity of feeding is regulated by the air degree adjustment valve 4 that is subjected to mix the temperature sensor control in the burner, the high-temperature flue gas direct heating high temperature counter flow oxidation device 2 after the liquefied gas burning.After high temperature counter flow oxidation device 2 reaches design temperature, cut off liquefied gas source.1. the road of an automatically controlled two-way reversing valve 1 closes that 2. the road is open-minded, simultaneously 2. the 1. road of another automatically controlled two-way reversing valve 1 is opened the road and is closed, associated gas enters high temperature counter flow oxidation device 2 through the 1. road of an automatically controlled two-way reversing valve 1 forward (from left to right), and the high-temperature flue gas behind the oxidation heat liberation is by the 2. road emptying of an automatically controlled two-way reversing valve 1.Continuous feeding along with the low temperature associated gas, thermal field in the high temperature counter flow oxidation device 2 moves right, prevent the not generation of oxidation associated gas escape, under the monitoring of high temperature counter flow oxidation device 2 two ends temperature sensors 6, when thermal field move to a certain amount of after, 2. 1. road of another control two-way reversing valve 1 is opened the road and is closed, simultaneously the 1. road of an automatically controlled two-way reversing valve 1 closes that 2. the road is open-minded, associated gas enters high temperature counter flow oxidation device 2 through the 2. road of another automatically controlled two-way reversing valve 1 reverse (from right to left), and the high-temperature flue gas behind the oxidation heat liberation is by the 1. road emptying of an automatically controlled two-way reversing valve 1.Thereby the complete oxidation of realizing associated gas is recycled no noxious gas emission.
Claims (9)
1. associated gas of biomass carbonization oxidation waste heat reclaiming process, comprise that the liquefied gas burning starts and associated gas of biomass carbonization oxidation and waste heat recovery, described liquefied gas and air mix in the mixed burner of associated gas of biomass carbonization oxidation waste-heat recovery device and perfect combustion, for the startup of associated gas of biomass carbonization oxidation residual neat recovering system provides energy, described associated gas of biomass carbonization oxidation waste heat recovery is carried out in associated gas of biomass carbonization oxidation waste-heat recovery device: (1) adopts elevated temperature heat adverse current commutation oxidizing process, and the associated gas of biomass carbonization of the device inside of flowing through is carried out automatic elevated temperature heat adverse current commutation complete oxidation; (2) heat energy of oxidising process release is kept associated gas oxidation institute energy requirement on the one hand, provides unnecessary heat energy to the external world on the other hand.
2. according to the described associated gas of biomass carbonization oxidation of claim 1 waste heat reclaiming process, described liquefied gas and air mix in the mixed burner of associated gas of biomass carbonization oxidation waste-heat recovery device and perfect combustion, quartz sand medium in the high-temperature flue gas direct heating high temperature counter flow oxidation device after the burning, quartz sand cuts off liquefied gas source after reaching design temperature, and the associated gas of the high quartz sand of flowing through is the oxidized heat energy that discharges simultaneously under the heating of quartz sand medium and catalysis.
3. according to the described associated gas of biomass carbonization oxidation of claim 1 waste heat reclaiming process, the adverse current commutation oxidising process that it is characterized in that described associated gas of biomass carbonization is controlled execution automatically by the automatically controlled two-way reversing valve and the automatic control indicating meter of handling of associated gas of biomass carbonization oxidation waste-heat recovery device.
4. associated gas of biomass carbonization oxidation waste-heat recovery device, comprise the startup pre-heating system, associated gas high temperature counter flow oxidation system, automatic control system, it is characterized in that described startup pre-heating system comprises the mixed burner that is connected with high temperature counter flow oxidation device and is connected in the air degree adjustment valve of mixing burner, described associated gas high temperature counter flow oxidation system comprises high temperature counter flow oxidation device and coupled automatically controlled two-way reversing valve, and described automatic control system comprises automatic manipulation control indicating meter and the temperature sensor that is electrically connected with it thereof, portfire and automatically controlled two-way reversing valve.
5. according to the described associated gas of biomass carbonization oxidation of claim 4 waste-heat recovery device, it is characterized in that described portfire is installed in the mixed burner.
6. according to the described associated gas of biomass carbonization oxidation of claim 4 waste-heat recovery device, it is characterized in that being provided with the liquefied gas nozzle in the described mixed burner, and link to each other with the liquefaction source of the gas.
7. according to the described associated gas of biomass carbonization oxidation of claim 4 waste-heat recovery device, it is characterized in that described high temperature counter flow oxidation device inner chamber is mounted with quartz sand.
8. according to the described associated gas of biomass carbonization oxidation of claim 4 waste-heat recovery device, it is characterized in that described temperature sensor is installed on respectively in mixed burner and the high temperature counter flow oxidation device.
9. according to the described associated gas of biomass carbonization oxidation of claim 4 waste-heat recovery device, it is characterized in that described automatically controlled two-way reversing valve is two covers, parallel mutually being connected on the high temperature counter flow oxidation device.
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| CN200910255639A CN101735829A (en) | 2009-12-10 | 2009-12-10 | Process and device for recovering oxidation waste heat of associated gas of biomass carbonization |
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| CN200910255639A CN101735829A (en) | 2009-12-10 | 2009-12-10 | Process and device for recovering oxidation waste heat of associated gas of biomass carbonization |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906322A (en) * | 2010-07-09 | 2010-12-08 | 胜利油田胜利动力机械集团有限公司 | Process and device for generating power by melting and gasifying biomass |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1470603A (en) * | 2002-07-22 | 2004-01-28 | 赵三喜 | Technical apparatus and method suitable for cooking coal deep-processing (coking, gasifying, liquefying) |
| CN101050137A (en) * | 2007-05-18 | 2007-10-10 | 中国林业科学研究院林业研究所 | Synthesizing method and equipment for fabricating light ground substance by using farming and forestry biolobic material |
| CN101508902A (en) * | 2009-03-06 | 2009-08-19 | 苏州工业设备安装集团有限公司 | Biomass fuel cycle gasifying device and method thereof |
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- 2009-12-10 CN CN200910255639A patent/CN101735829A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1470603A (en) * | 2002-07-22 | 2004-01-28 | 赵三喜 | Technical apparatus and method suitable for cooking coal deep-processing (coking, gasifying, liquefying) |
| CN101050137A (en) * | 2007-05-18 | 2007-10-10 | 中国林业科学研究院林业研究所 | Synthesizing method and equipment for fabricating light ground substance by using farming and forestry biolobic material |
| CN101508902A (en) * | 2009-03-06 | 2009-08-19 | 苏州工业设备安装集团有限公司 | Biomass fuel cycle gasifying device and method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906322A (en) * | 2010-07-09 | 2010-12-08 | 胜利油田胜利动力机械集团有限公司 | Process and device for generating power by melting and gasifying biomass |
| CN101906322B (en) * | 2010-07-09 | 2013-11-13 | 胜利油田胜利动力机械集团有限公司 | Process and device for generating power by melting and gasifying biomass |
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Application publication date: 20100616 |