CN101880550B - High-temperature solid fuel gasification device - Google Patents
High-temperature solid fuel gasification device Download PDFInfo
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- CN101880550B CN101880550B CN201010186271A CN201010186271A CN101880550B CN 101880550 B CN101880550 B CN 101880550B CN 201010186271 A CN201010186271 A CN 201010186271A CN 201010186271 A CN201010186271 A CN 201010186271A CN 101880550 B CN101880550 B CN 101880550B
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- heat storage
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- ceramic honey
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The invention discloses a high-temperature solid fuel gasification device which comprises a hearth body, a four-way changeover valve and a left honeycomb ceramic and a right honeycomb ceramic oppositely arranged at the lower part of the hearth body, wherein one end of the four-way changeover valve is a gasification agent inlet end, one end is a produced gas outlet end, one end of the rest two ends is communicated with the left honeycomb ceramic, and the other end is communicated with the right honeycomb ceramic; and a nickel-based catalyst layer is coated in honeycomb holes of the left honeycomb ceramic and the right honeycomb ceramic. The honeycomb ceramic can stay in two states; when one honeycomb ceramic is heated, the other one is a heating gasification agent. The states of the two honeycomb ceramics are switched through the four-way changeover valve, the waste heat of a produced gas can be recycled smoothly, the gasification agent is heated to increase the temperature of a gasification area in the blast hearth, and the tar content is efficiently reduced. Meanwhile, the retention period of the produced gas can be prolonged, and tar cracking is promoted. The tar in the produced gas can be catalytically cracked by the nickel-based catalyst in the honeycomb ceramics.
Description
Technical field
The present invention relates to a kind of propellant gasifier, relate in particular to a kind of high-temperature solid fuel gasification device.
Background technology
Biomass are a kind of important renewable energy, adopt direct combustion system to utilize, and not only utilising efficiency is relatively low, also causes some pollutions, like flue dust etc.Gasifying biomass is under the hypoxemia situation, biomass fuel to be converted into inflammable gas, thus the indirect utilization biomass energy.The inflammable gas of this gasification gained is than the more convenient burning utilization of biomass fuel, and efficient is higher, and cleans relatively.
Gasifying biomass is the integral part in the present Biomass Energy Utilization, and it is undertaking the important task that biomass solid fuel is converted into geseous fuel and chemical raw material.In present gasifying process, be difficult to occur the too high problem of tar content with avoiding.Scientific circles take multiple device both at home and abroad, to reduce the coal-tar middle oil content of gasification.The circulating fluidized bed that adopts at present, double bed gasifier etc. have tar controllability preferably, and still, this gasifier only possibly be applied to large-scale industrial circle, is unfavorable for medium and small utilization.Fixed bed gasifiers, in updraft type or lower suction type fixed bed gasifiers, though be convenient to the miniaturized utilization, gasification efficiency is not high, and the tar problem is also failed fine solution.Reduce the tar content in the aerogenesis, major measure has the raising gasification temperature, and at hot environment (＞1100 ℃), the generation of tar will be restricted, and the tar that produces is cracked into micro-molecular gas easily in hot environment.But conventional device; Improve the temperature in gasification zone, just needing increases gasification agent temperature or improves vaporized chemical air content, though reduced the tar in the aerogenesis; But but make the gasifier peripheral equipment complicated, perhaps make in the aerogenesis carbon dioxide content raise and cause calorific value to reduce.
In addition, catalyzer is the effective measure that reduce tar content, and the interpolation of catalyzer has dual mode: one, mixed catalyst in biomass material, mainly contain salt or ore class catalyzer, and purpose is to reduce the generation of tar; Two, aerogenesis is removed the tar in the aerogenesis through the catalyst layer in the special catalyst chamber.Catalyzer in catalyst chamber faces the problem of an easy carbon distribution inactivation, though there are a lot of researchs to improve the carbon accumulation resisting ability of catalyzer at present, does not solve fully.
Summary of the invention
In order to solve in the gasification problem that produces tar, improve gasification efficiency, the invention provides a kind of integrated backheat, catalysis, catalyst regeneration is one, and can realize the high-temperature solid fuel gasification device of high-level efficiency, low tar.
High-temperature solid fuel gasification device provided by the invention comprise burner hearth body, four-way switching valve and be symmetricly set on burner hearth body bottom and with the burner hearth body in the left ceramic honey comb device and the right ceramic honey comb device that are communicated with; One end of said four-way switching valve is the vaporized chemical inlet end, and an end is the aerogenesis outlet side, and an end is communicated with left ceramic honey comb device in all the other two ends, and the other end is communicated with right ceramic honey comb device; The catalyst based layer of coated in nickel in the honeycomb hole of said left ceramic honey comb device and right ceramic honey comb device.
Further; The left heat storage and the right heat storage that also comprise hollow structure; Said left heat storage and right heat storage be symmetricly set on the burner hearth body the bottom and with the burner hearth body in be communicated with, said left ceramic honey comb device is arranged in the left heat storage, said right ceramic honey comb device is arranged in the right heat storage;
Further, the hollow hole cross-sectional profile of the xsect of said left ceramic honey comb device and left heat storage coupling, and area equates; The hollow hole cross-sectional profile coupling of the xsect of said right ceramic honey comb device and right heat storage, and area equates;
Further, the hollow hole of said left heat storage and right heat storage stops solid-fuelled screen plate near being provided with respectively on the xsect of burner hearth body end;
Further, the furnace wall of the axis normal burner hearth body of the hollow hole of said left heat storage and right heat storage.Compared with prior art, high-temperature solid fuel gasification device has following advantage:
1, the present invention is provided with a ceramic honey comb device respectively in the both sides of burner hearth body; As the import of vaporized chemical in the burner hearth body and the exit passageway of aerogenesis; The ceramic honey comb device can be in two working ordeies; When a ceramic honey comb device absorbed heat intensification from aerogenesis, another then was the heating and gasifying agent, and the conversion between the working order of two ceramic honey comb devices relies on four-way switching valve to switch.Heat absorption between two ceramic honey comb devices and the switching between the heat release working order can realize the recycling of aerogenesis waste heat smoothly, the heating and gasifying agent, and to improve the regional temperature that gasifies in the burner hearth, this process can reduce tar content effectively.
2, switch through four-way switching valve; Four-way switching valve can switch to the ceramic honey comb device of intussusception certain temperature vaporized chemical is heated; Reach the purpose that vaporized chemical is shifted to an earlier date preheating, increase the high temperature fixed fuel, promote coke tar cracking in the residence time of burner hearth high-temperature area aerogenesis.
3, the catalyst based layer of coated in nickel in the honeycomb hole of ceramic honey comb device; Aerogenesis through the hole of ceramic honey comb device in the heat release of ceramic honey comb device; Tar in the aerogenesis can further be reduced the tar content in the aerogenesis by the catalyst cracking in the ceramic honey comb.
4, the ceramic honey comb device can effectively prevent the area carbon of nickel-base catalyst, when the ceramic honey comb device is in the heat absorption state, and the cracking of nickel-base catalyst catalytic tar; Possibly form carbon distribution at catalyst surface, but switch the fire end of the ceramic honey comb device of back area carbon, in the time of in the hole of vaporized chemical feeding ceramic honey comb device as vaporized chemical at four-way switching valve; Contain water vapor and oxygen in the vaporized chemical, these two kinds of gases can carry out chemical reaction with the carbon distribution on the catalyst surface in the heated while; Removed the catalyst surface carbon distribution effectively; Therefore, the catalyst regeneration that utilizes this mode to carry out, Billy is more effectively stable with the catalyzer of anti-carbon performance; Catalysis carbon monoxide and steam reaction reduce carbon monoxide content, improve hydrogen content, improve the industrial application value of gas.
Description of drawings
Accompanying drawing is a cross section view of the present invention.
In the accompanying drawing; The right heat storage 9-of the right ceramic honey comb device of 1-burner hearth body 2-four-way switching valve 3-left side ceramic honey comb device 4-5-vaporized chemical inlet end 6-aerogenesis outlet side 7-left side heat storage 8-screen plate 10-support 11-charging valve 12-ash-valve 13-tracheae 14-tracheae
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done explanation in further detail.
Accompanying drawing is cross section view of the present invention, and is as shown in the figure: high-temperature solid fuel gasification device comprise burner hearth body 1, four-way switching valve 2, left ceramic honey comb device 3, right ceramic honey comb device 4 and be symmetricly set on burner hearth body 1 bottom and with burner hearth body 1 in the left heat storage 7 and the right heat storage 8 of the hollow structure that is communicated with.Said burner hearth body 1 is supported on the support 10, and the top of burner hearth body 1 is provided with charging valve 11, and the bottom is provided with ash-valve 12.The axis of the said left heat storage 7 and the hollow hole of right heat storage 8 is provided with the furnace wall of burner hearth body 1 is vertical, and left ceramic honey comb device 3 is arranged in the left heat storage 7, and right ceramic honey comb device 4 is arranged in the right heat storage 8.One end of said four-way switching valve 2 is that vaporized chemical inlet end 5, one ends are aerogenesis outlet side 6, and an end is communicated with left ceramic honey comb device 3 through tracheae 13 in all the other two ends, and the other end is communicated with right ceramic honey comb device 4 through tracheae 14.The catalyst based layer of coated in nickel in the honeycomb hole of said left ceramic honey comb device 3 and right ceramic honey comb device 4.
The external appearance matching (in the present embodiment, the profile of left ceramic honey comb device 3 is cylindric, and the hollow hole of left heat storage 7 also is cylindric) of the xsect of left side ceramic honey comb device 3 and the hollow hole xsect of left heat storage 7, and area equates.The external appearance matching (in the present embodiment, the profile of right ceramic honey comb device 4 is cylindric, and the hollow hole of right heat storage 8 also is cylindric) of the xsect of right ceramic honey comb device 4 and the hollow hole xsect of right heat storage 8, and area equates.Like this, can guarantee effectively all to pass through the honeycomb hole in the left ceramic honey comb device 3 through vaporized chemical in the left heat storage 7 or aerogenesis; All pass through the honeycomb hole in the right ceramic honey comb device 4 through vaporized chemical in the right heat storage 8 or aerogenesis, both improved recovery, the tar in the aerogenesis is carried out Ni-based catalytic pyrolysis, improved pre-heat effect again vaporized chemical to aerogenesis gas heat energy.
The hollow hole of left side heat storage 7 and right heat storage 8 stops solid-fuelled screen plate 9 near being provided with respectively on the xsect of burner hearth body 1 end.Screen plate 9 both can stop that the high-temperature solid fuel in the burner hearth body 1 got in left heat storage 7 and the right heat storage 8; Can the contaminant filter in the aerogenesis be fallen again; Avoid stopping up the honeycomb hole in left ceramic honey comb device 3 and the right ceramic honey comb device 4, left ceramic honey comb device 3 is played provide protection with right ceramic honey comb device 4.
When using this high-temperature solid fuel gasification device, pack solid fuel into burner hearth body 1 from the charging valve 11 at burner hearth body 1 top in, feed vaporized chemicals from the vaporized chemical inlet end 5 of four-way switching valve 2; Vaporized chemical gets in the burner hearth body 1 through tracheae 13 and left ceramic honey comb device 3; And with burner hearth body 1 in the high-temperature solid fuel burning, burning back aerogenesis is discharged from the aerogenesis outlet side 6 of four-way switching valve 2 through screen plate 9, right ceramic honey comb device 4 and tracheae 14; In this process; Thermal energy transfer in the aerogenesis is given right ceramic honey comb device 4, a part of heat energy that right ceramic honey comb device 4 stores in the aerogenesis, and the nickel-base catalyst in the simultaneously right ceramic honey comb device 4 carries out catalytic pyrolysis to the tar in the aerogenesis; Reduce the tar content in the aerogenesis, but also form carbon distribution at catalyst surface.After using for some time, switch, feed water vapor from the aerogenesis outlet side earlier through four-way switching valve 2; Blow down the hydrogen in the tracheae 14, feed vaporized chemical again, vaporized chemical gets in the right ceramic honey comb device 4; Contain water vapor and oxygen in the vaporized chemical in the heated while, carry out chemical reaction, removed the catalyst surface carbon distribution effectively with carbon distribution on the catalyst surface; Make catalyst regeneration, the vaporized chemical after preheating gets in the burner hearth body 1 and burns with high-temperature solid fuel, has improved gasification regional temperature in the burner hearth; This process can reduce tar content effectively, and the aerogenesis after the burning gets into left ceramic honey comb device 3, and is discharged by four-way switching valve 2.Solid fuel after the burning is discharged from ash-valve 12.
Explanation is at last; Above embodiment is only unrestricted in order to technical scheme of the present invention to be described; Although with reference to preferred embodiment the present invention is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention; And not breaking away from the aim and the scope of technical scheme of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (6)
1. a high-temperature solid fuel gasification device comprises burner hearth body (1), it is characterized in that: also comprise four-way switching valve (2) and be symmetricly set on burner hearth body (1) bottom and with burner hearth body (1) in the left ceramic honey comb device (3) and the right ceramic honey comb device (4) that are communicated with; One end of said four-way switching valve (2) is vaporized chemical inlet end (5), and an end is aerogenesis outlet side (6), and an end is communicated with left ceramic honey comb device (3) in all the other two ends, and the other end is communicated with right ceramic honey comb device (4); The catalyst based layer of coated in nickel in the honeycomb hole of said left ceramic honey comb device (3) and right ceramic honey comb device (4).
2. high-temperature solid fuel gasification device according to claim 1; It is characterized in that: the left heat storage (7) and the right heat storage (8) that also comprise hollow structure; Said left heat storage (7) and right heat storage (8) are symmetricly set on the bottom of burner hearth body (1) and are communicated with burner hearth body (1) is interior; Said left ceramic honey comb device (3) is arranged in the left heat storage (7), and said right ceramic honey comb device (4) is arranged in the right heat storage (8).
3. high-temperature solid fuel gasification device according to claim 1 and 2 is characterized in that: the hollow hole cross-sectional profile coupling of the xsect of said left ceramic honey comb device (3) and left heat storage (7), and area equates; The hollow hole cross-sectional profile coupling of the xsect of said right ceramic honey comb device (4) and right heat storage (8), and area equates.
4. high-temperature solid fuel gasification device according to claim 3 is characterized in that: the hollow hole of said left heat storage (7) and right heat storage (8) stops solid-fuelled screen plate (9) near being provided with respectively on the xsect of burner hearth body (1) end.
5. high-temperature solid fuel gasification device according to claim 3 is characterized in that: the furnace wall of the axis normal burner hearth body (1) of the hollow hole of said left heat storage (7) and right heat storage (8).
6. high-temperature solid fuel gasification device according to claim 4 is characterized in that: the furnace wall of the axial vertical burner hearth body (1) of the hollow hole of said left heat storage (7) and right heat storage (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010186271A CN101880550B (en) | 2010-05-28 | 2010-05-28 | High-temperature solid fuel gasification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010186271A CN101880550B (en) | 2010-05-28 | 2010-05-28 | High-temperature solid fuel gasification device |
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| Publication Number | Publication Date |
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| CN101880550A CN101880550A (en) | 2010-11-10 |
| CN101880550B true CN101880550B (en) | 2012-10-03 |
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| CN201010186271A Expired - Fee Related CN101880550B (en) | 2010-05-28 | 2010-05-28 | High-temperature solid fuel gasification device |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103980951A (en) * | 2014-05-22 | 2014-08-13 | 长安大学 | Method and device for producing coal gas by pulverized coal pyrolysis |
| CN104033889B (en) * | 2014-05-28 | 2016-06-29 | 山东科技大学 | The biomass gasification fired device of heat accumulating type and production technology thereof |
| CN106010657A (en) * | 2016-05-18 | 2016-10-12 | 中国科学院广州能源研究所 | Low-tar gasification method for biomass and device for implementing method |
| CN106753578A (en) * | 2016-12-16 | 2017-05-31 | 四川雷鸣环保装备有限公司 | Pulsed circle fluidized-bed gasification furnace and the gasification system and method using the gasification furnace |
| CN106753588B (en) * | 2017-02-20 | 2018-11-23 | 中聚信海洋工程装备有限公司 | A kind of gasifying agent mixing pre-burning firing technique and device |
| CN113430013B (en) * | 2021-07-16 | 2024-06-14 | 南京金崎新能源动力研究院有限公司 | High-efficient purification treatment equipment of congealable organic matter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4315757A (en) * | 1979-08-27 | 1982-02-16 | General Electric Company | Coal gasification apparatus |
| CN201372271Y (en) * | 2009-03-25 | 2009-12-30 | 赵志贤 | Small and medium biologic grain gasification producer furnace |
| CN201746516U (en) * | 2010-05-28 | 2011-02-16 | 重庆大学 | High-temperature solid fuel gasifier |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09291291A (en) * | 1996-04-24 | 1997-11-11 | Nippon Steel Corp | Thermal cracking of coal and apparatus therefor |
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2010
- 2010-05-28 CN CN201010186271A patent/CN101880550B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4315757A (en) * | 1979-08-27 | 1982-02-16 | General Electric Company | Coal gasification apparatus |
| CN201372271Y (en) * | 2009-03-25 | 2009-12-30 | 赵志贤 | Small and medium biologic grain gasification producer furnace |
| CN201746516U (en) * | 2010-05-28 | 2011-02-16 | 重庆大学 | High-temperature solid fuel gasifier |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平9-291291A 1997.11.11 |
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Granted publication date: 20121003 Termination date: 20140528 |