CN101671576A - Auxiliary gasification technique using synthesis gas to burnback and equipment thereof - Google Patents
Auxiliary gasification technique using synthesis gas to burnback and equipment thereof Download PDFInfo
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- CN101671576A CN101671576A CN 200910272196 CN200910272196A CN101671576A CN 101671576 A CN101671576 A CN 101671576A CN 200910272196 CN200910272196 CN 200910272196 CN 200910272196 A CN200910272196 A CN 200910272196A CN 101671576 A CN101671576 A CN 101671576A
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- 238000002309 gasification Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000015572 biosynthetic process Effects 0.000 title abstract description 20
- 238000003786 synthesis reaction Methods 0.000 title abstract description 18
- 239000007789 gas Substances 0.000 claims abstract description 121
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000000446 fuel Substances 0.000 claims abstract description 35
- 239000001301 oxygen Substances 0.000 claims abstract description 35
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 35
- 230000008569 process Effects 0.000 claims abstract description 21
- 238000002485 combustion reaction Methods 0.000 claims description 34
- 238000012545 processing Methods 0.000 claims description 16
- 238000000605 extraction Methods 0.000 claims description 15
- 238000005516 engineering process Methods 0.000 claims description 12
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 11
- 239000003546 flue gas Substances 0.000 claims description 11
- 230000000087 stabilizing effect Effects 0.000 claims description 10
- 239000002893 slag Substances 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 230000000153 supplemental effect Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 239000000779 smoke Substances 0.000 abstract 1
- 238000009272 plasma gasification Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 5
- 238000005336 cracking Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 4
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- 239000000203 mixture Substances 0.000 description 4
- 239000011269 tar Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000000284 extract Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000011285 coke tar Substances 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
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- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
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- 239000000498 cooling water Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
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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
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
- Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]
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- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses an auxiliary gasification technique using synthesis gas to burnback and equipment thereof, mainly solving the difficulty that the existing gasification furnace has poorer waveadaptability to fuel characteristics. The technique comprises the following steps: one part of the output synthesis gas is extracted under the state that the gas gasification is in conventional operation and the generated synthesis gas is output from the upper part of the gasification furnace continuously, then is delivered into a burning chamber at the lower part of the gasification furnace, generates vigorous burning reaction with sprayed oxygen, and generates high-temperature and high-heat smoke so as to assist the cycle process of the fuel gasification above the burning chamber. The equipment comprises a gasification furnace and subsequent treatment equipment which is provided with a synthesis gas extracting port; the synthesis gas extracting port is connected with a synthesis gas nozzle by a pressure-stabilizing gas storage tank of a circulating fan; and the synthesis gas nozzle and an oxygen nozzle are arranged on the wall surface of the burning chamber at the lower part of the gasification furnace. The technique and the equipment are characterized by good load adjustment, good burning stability, high gasification temperature, wide fuel adaptability and high product quality.
Description
Technical field
The present invention relates in the process of flammable feedstock production synthetic gas, improve the technology of vapourizing furnace practicality, operability and economy, refer to a kind of auxiliary gasifying process and equipment thereof that utilizes synthetic gas to return burning particularly.
Background technology
Along with the natural increase and the sustainable development of economy of population, but promptly reducing, cause the China and even the world all to have long-term and huge energy demand and supply pressure as the conventional high-quality fossil oil in main energy sources source.In the face of the megatrend of global integration, the economy of China's highly energy-consuming, low efficiency will face the baptism of how to try to achieve survival and development in international competition.Utilizing on the problem of flammable raw materials such as fire coal, biological material, municipal solid waste, energy-saving and cost-reducing having become promotes the most important of national economy, social sustainable development and one of the most effective means.
Obtain this relative rudimentary form of utilizing that falls behind of the energy with fuel combustion and compare, the synthetic gas that the fuel high-temperature gasification is obtained has higher value, and its purposes is also more extensive.For example, synthetic gas can be prepared into oil product, to solving the liquid fuel shortage, protecting environment significant.Simultaneously, synthetic gas is the important source material of producing chemical fertilizer (urea), also is the important source material of producing bulk chemical such as methyl alcohol, ethanol, acetic acid.In addition, synthetic gas can also be applied to Integrated gasification combined cycle generating (IGCC), and the comparable conventional direct combustion power generation of its generating efficiency promotes many.At present, the equipment that flammable raw material is carried out high-temperature gasification mainly comprises fixed-bed gasification furnace, fluidized-bed gasification furnace, fluid injected bed vapourizing furnace etc., and also development has emerging plasma gasification stove in recent years.
For fixed-bed gasification furnace, fluidized-bed gasification furnace and fluid injected bed vapourizing furnace, exist the situation that causes synthesis gas yield and composition fluctuation with the variation of fuel characteristic always, because the regulating measure of this type of vapourizing furnace in operational process is limited and be not easy timely adjusting, so had a strong impact on the subsequent technique of synthetic gas.For example, general in order to reach higher cold gas efficiency as far as possible with the perfect combustion ratio reduction of fuel, cause the interior temperature of vapourizing furnace not high.For fixed-bed gasification furnace or fluidized-bed gasification furnace that fuel is biomass or coal slime, the syngas outlet temperature is generally between 500～800 ℃, in particular cases the highest temperature out can be above 1000 ℃ yet, and in this temperature range, will produce tar in a large number, this is gasifying process one of the product of difficult purification, for the subsequent applications technology of synthetic gas has been brought great difficulty.If reduce the generation of tar, just must improve the syngas outlet temperature, this needs corresponding increase oxygen-supplying amount, improves the ratio of fuel combustion.For low calorie fuels, can cause CO in the synthetic gas that is generated on the one hand like this
2Content raises, calorific value significantly reduces, the composition variation, is unfavorable for the follow-up industrial application of synthetic gas equally; Be subjected to the restriction of its combustion conditions and theoretical combustion temperature on the other hand, the local function zone in the vapourizing furnace also is difficult to guarantee to reach required high temperature.
For plasma gasification stove, because being in operation, it provide high temperature high heat by plasma arc, it can be independent of output and the composition fluctuation situation that the chemical reaction in the vapourizing furnace is regulated synthetic gas, has characteristics easy to adjust.But be subjected to the restriction of the plasmatorch restriction of electrode life, especially its cathode life, a common plasmatorch uses 600h just to need to change electrode continuously.And a plasma gasification stove is equipped with 2～4 plasmatorchs usually, and is that have even more, and this just causes the part replacement of plasma gasification stove frequent, working efficiency greatly reduces.Simultaneously, because the current consumption of plasmatorch and corresponding cooling water system thereof is bigger, cause its running cost higher.
Summary of the invention
Purpose of the present invention is exactly will solve existing vapourizing furnace to the relatively poor difficult problem of fuel characteristic fluctuation adaptability, provides that a kind of Load Regulation and combustion stability are good, fuel gasification temperature height, fuel tolerance is wide, product quality the is high synthetic gas that utilizes return the auxiliary gasifying process and the equipment thereof of burning.
For achieving the above object, the synthetic gas that utilizes that the present invention is designed returns the auxiliary gasifying process of burning, be that the synthetic gas that is in conventional operation at vapourizing furnace, generated is continuously under the state of vapourizing furnace top output, part in output synthetic gas is extracted, again send in the combustion chamber of vapourizing furnace bottom, with the oxygen that sprays into violent combustion reactions taking place, produces the process circulation that the high hot flue gas of high temperature comes the fuel gasification of auxiliary chamber top.Owing to be the single-phase mixed firing of gas-gas, its reaction is violent far beyond gas-solid two-phase mixed firing, its combustion centre's temperature can reach 2000～3000 ℃ in theory, thereby can assist the stable high-temperature flue gas district of formation in vapourizing furnace as the replenishing of main heat source in the vapourizing furnace.CO in the high-temperature flue gas
2With water vapor all be the raw material that carbon transforms, the water vapor of 1mol and the CO of 1mol
2Reaction can generate the CO of 1mol and the H of 1mol
2The high-temperature flue gas of steady running and remaining oxygen be vaporising fuel to greatest extent together, thereby obtains high-quality (CO+H
2The content height) synthetic gas.Specifically, the partial synthesis gas that returns burning is equivalent to the low calorie fuels suitable with gasification efficiency that burnt in fact, but realized to its economy effective adjusting, thereby improved the quality of whole synthetic gas gasification temperature, load variations and combustion stability in the vapourizing furnace.
The temperature of the high hot flue gas of the high temperature of in above-mentioned technology the vapourizing furnace bottom being produced further, is controlled at 1700～2000 ℃.At such temperature province vaporising fuel, can improve the productivity of vapourizing furnace and the transformation efficiency of carbon on the one hand most economically, the lime-ash liquid stateization that fuel gasification produced can be convenient to discharge from the vapourizing furnace bottom on the other hand.
Further, in above-mentioned technology with the synthetic gas supercharging extracted and voltage stabilizing at 33000～36000Pa, send into the vapourizing furnace bottom again and carry out combustion reactions.Spray synthetic gas in such pressure span, can guarantee the quick thorough mixing of gas-gas, the complete stability burning, thus in vapourizing furnace, form reliable and stable high-temperature gasification district.
Again further, in above-mentioned technology, the temperature of synthetic gas extraction point is controlled in the synthetic gas below the contained cindery fusing point.Can effectively avoid like this extract lime-ash in the synthetic gas and condense and stop up pump-line.
For realizing that the synthetic gas that utilizes that above-mentioned technology designs returns the auxiliary equipment for gasification of burning, comprise vapourizing furnace and subsequent processing device, the syngas outlet of vapourizing furnace links to each other with the synthetic gas import of subsequent processing device.Described subsequent processing device is provided with the synthetic gas extraction opening, described synthetic gas extraction opening links to each other with the input terminus of recirculation blower, the output terminal of described recirculation blower links to each other with the synthetic gas nozzle, described synthetic gas nozzle is arranged on the combustion chamber wall surface of vapourizing furnace bottom, is used for spraying synthetic gas to the combustion chamber.Also be provided with oxygen jet on the combustion chamber wall surface of described vapourizing furnace bottom, be used for to combustion chamber injection of oxygen or oxygen-rich air.
Further, the output terminal of described recirculation blower links to each other with the synthetic gas nozzle by the voltage stabilizing gas-holder.The purpose that the voltage stabilizing gas-holder is set is to guarantee that synthetic gas can stable burning in the combustion chamber.When fuel feed characteristic variations is big, because the shock absorption of gas-holder can make the fluctuations in discharge of synthetic gas relatively lag behind, reduce fluctuation, thereby realize stable burning, guarantee that gasification carries out continuously.
Further, the furnace wall of top, the combustion chamber of described vapourizing furnace bottom is provided with the secondary apparatus of oxygen supply, is used for feedstock bed place supplemental oxygen or oxygen-rich air in vapourizing furnace.In the process of the up vaporising fuel of the high hot flue gas of high temperature, the oxygen combustion that part of fuel can spray into the secondary apparatus of oxygen supply is with the gasification heat of guaranteeing to provide stable.
Again further, the synthetic gas extraction opening place on the described subsequent processing device is provided with grey slag filter.The ash slag filter can be retained down undesirable large-size particle, keeps the unobstructed of synthetic gas pipeline and nozzle.
Compare with the gasifying process and the equipment for gasification of routine, the present invention has the advantage of following several respects:
One, return that to burn partial synthesis gas be economical and efficient utilization to low calorie fuels, it can regulate gasification temperature and load variations in the vapourizing furnace in real time, keeps the stability of vapourizing furnace internal combustion, fluctuates thereby effectively reduce because of fuel characteristic changes the synthesis gas yield and the composition that cause.
They are two years old, return burning partial synthesis gas and can effectively improve the interior gasification temperature of vapourizing furnace, particularly the gasification temperature of low calorie fuels can be brought up to the coke tar cracking temperature province, thereby make the coke tar cracking in the synthetic gas to greatest extent, significantly improve the quality of synthetic gas, for the subsequent treatment process of synthetic gas is provided convenience.
Its three, the stable rising of gasification temperature in the vapourizing furnace had both improved the production efficiency of vapourizing furnace, had improved fuel again and had been converted into CO+H
2Ratio, the lime-ash that fuel gasification is produced is discharged from the vapourizing furnace bottom with the formation of liquid state.At the different gasification temperature of different fuel design, can adapt to the slag tap of various vapourizing furnaces.The water quenched slag vitrifying of being discharged can harmlessly fully utilize.
Its four, return and burn power or the consumption, particularly article on plasma vapourizing furnace that partial synthesis gas can suitably reduce the vapourizing furnace main heat source, can play the quantity that reduces the operation plasmatorch, reduce the plasmatorch consumption of electrode, significantly reduce the work efficiency of running cost.When plasmatorch was changed electrode, returning burning partial synthesis gas was the steady load of most economical practicality and the method for stable burning.
They are five years old, it is very simple to be used to return the device structure that burns partial synthesis gas, only need between vapourizing furnace and subsequent processing device, to set up recirculation blower and voltage stabilizing gas-holder, set up the synthetic gas nozzle in the vapourizing furnace combustion chamber and oxygen jet gets final product, be easy to existing installation is reequiped or transformed, with low cost, economical and practical.
Description of drawings
Accompanying drawing is a kind of structural representation that utilizes synthetic gas to return the auxiliary equipment for gasification of burning.
Embodiment
Below in conjunction with the drawings and specific embodiments equipment of the present invention and technology are described in further detail:
The synthetic gas that utilizes shown in the figure returns the auxiliary equipment for gasification of burning, has a vapourizing furnace 1 and supporting subsequent processing device 2.The top of vapourizing furnace 1 is provided with material feeder 11, and the bottom of vapourizing furnace 1 is equipped with feedstock bed 10, and the below of feedstock bed 10 is the combustion chamber, and the bottom of vapourizing furnace 1 is provided with slag-drip opening.The top syngas outlet of vapourizing furnace 1 links to each other with the synthetic gas import of subsequent processing device 2.Subsequent processing device 2 is provided with synthetic gas extraction opening 12, synthetic gas extraction opening 12 places are equipped with grey slag filter 3, ash slag filter 3 links to each other with the input terminus of recirculation blower 4 by the synthetic gas transport pipe, the output terminal of recirculation blower 4 links to each other with the import of voltage stabilizing gas-holder 5 by the synthetic gas transport pipe, the outlet of voltage stabilizing gas-holder 5 links to each other with synthetic gas nozzle 6 by synthetic gas variable valve 13, and synthetic gas nozzle 6 is installed on the combustion chamber wall surface of vapourizing furnace 1 bottom.On the combustion chamber wall surface of vapourizing furnace 1 bottom, be furnished with oxygen jet 7.Be furnished with secondary apparatus of oxygen supply 9 on the furnace wall of bottom corresponding to feedstock bed 10 of vapourizing furnace 1, the gas pipe line of secondary apparatus of oxygen supply 9 is provided with oxygen regulating valve 8.
When the above-mentioned auxiliary equipment for gasification that utilizes synthetic gas to return burning moved, its technological process was such:
Start vapourizing furnace 1 and supporting subsequent processing device 2, fuel drops into continuously by material feeder 11, and gasification and subsequent treatment process normally move.Under the state that synthetic gas is exported continuously from vapourizing furnace 1 top, extract a part of synthetic gas with recirculation blower 4 from the synthetic gas extraction opening 12 of subsequent processing device 2, notice that the synthetic gas temperature that extracts should be below ash melting point, to prevent synthetic gas transport pipe slagging scorification obstruction.The filtration unit 3 that synthetic gas extraction opening 12 places are provided with can be retained down the macrobead lime-ash, prevents that the synthetic gas nozzle from being stopped up by lime-ash.Synthetic gas after the supercharging enters voltage stabilizing gas-holder 5, and the adjusting through synthetic gas variable valve 13 is ejected in the combustion chamber of vapourizing furnace 1 bottom by synthetic gas nozzle 6 again.
Simultaneously, oxygen or oxygen-rich air also are ejected into by oxygen jet 7 in the combustion chamber of vapourizing furnace 1 bottom, and synthetic gas is met oxygen and acutely burnt, and produce the high hot flue gas of high temperature, feedstock bed 10 and above form the gasification zone.Be about to fuel gasification on the high hot flue gas of high temperature, part of fuel and oxygen that sprays into from secondary apparatus of oxygen supply 9 or oxygen-rich air burning are also arranged, replenish and keep stable gasification heat.The spray oxygen amount of secondary apparatus of oxygen supply 9 can be regulated in real time by oxygen regulating valve 8.
The synthetic gas that gasification generates goes upward to the headspace of vapourizing furnace 1, also can carry out drying to the fuel that material feeder 11 provides.Because gasification temperature is very high in the vapourizing furnace, gaseous exchange, the residence time are longer up and down, thereby the thorough tar in the cracking synthetic gas.At last, high-quality synthetic gas flows to subsequent processing device 2 from the top syngas outlet of vapourizing furnace 1, and the formed liquid lime-ash of fuel gasification then passes feedstock bed 10, discharges from the bottom of vapourizing furnace 1, and so circulation endlessly.
In order to make this equipment satisfy the requirement of technology overall performance, and reach best technological effect, regulate synthetic gas variable valve 13 in the operational process in real time, the synthetic gas pressure-stabilisation of control voltage stabilizing gas-holder 5 outputs is sent into the stable burning of vapourizing furnace bottom again in the scope of 33000～36000Pa.Simultaneously, the temperature of the high hot flue gas of the high temperature that the vapourizing furnace bottom is produced is controlled in 1700～2000 ℃ the scope, can both cracking with the tar of guaranteeing the overwhelming majority in the synthetic gas.During concrete operations, can be by extraction amount and the synthetic gas and the oxygen supply ratio Comprehensive Control of synthetic gas.Certainly be furnished with the temperature and pressure measuring point vapourizing furnace 1 planted agent, be provided with gas ingredients sample collection and check point, to satisfy control to above-mentioned key parameter synthetic gas transport pipe planted agent.Aforesaid operations mostly can be realized by the prior art means, seldom give unnecessary details in this.
The present invention is particularly suitable for the transformation to various low calorie fuels equipment for gasification, and as solid slag discharging gasifying furnace, low temperature fluidized-bed gasification furnace, plasma gasification stove etc. are in order to improve the quality of final synthetic gas.Article on plasma vapourizing furnace particularly, after its steady running, can be according to actual needs, employing is returned the mode of burning partial synthesis gas and is replenished the required heat of gasification, thereby suitably reduce the plasmatorch number of operation, and can realize plasmatorch alternate run, prolong its work-ing life, reduce its running cost.When plasmatorch need be changed electrode, need not to shut down and handle, directly adopt partial synthesis gas to return burning and come steady load, thereby effectively improve the production efficiency of plasma gasification stove.
The above is a preferred embodiments of the present invention; be not to any pro forma restriction of the present invention; everyly do not break away from technology contents of the present invention,, all belong to the scope of claim protection of the present invention according to modification, equivalent variations and the modification that technical spirit of the present invention is carried out above example.
Claims (10)
1. auxiliary gasifying process that utilizes synthetic gas to return burning, it is characterized in that: this technology is that the synthetic gas that is in conventional operation at vapourizing furnace, generated is continuously under the state of vapourizing furnace top output, part in output synthetic gas is extracted, again send in the combustion chamber of vapourizing furnace bottom, with the oxygen that sprays into violent combustion reactions taking place, produces the process circulation that the high hot flue gas of high temperature comes the fuel gasification of auxiliary chamber top.
2. the auxiliary gasifying process that utilizes synthetic gas to return burning according to claim 1 is characterized in that: the temperature of the high hot flue gas of the high temperature that the vapourizing furnace bottom is produced is controlled at 1700～2000 ℃.
3. the auxiliary gasifying process that utilizes synthetic gas to return burning according to claim 1 and 2 is characterized in that: the synthetic gas supercharging extracted and voltage stabilizing at 33000～36000Pa, are sent into the vapourizing furnace bottom again and carried out combustion reactions.
4. the auxiliary gasifying process that utilizes synthetic gas to return burning according to claim 1 and 2 is characterized in that: the temperature of synthetic gas extraction point is controlled in the synthetic gas below the contained cindery fusing point.
5. the auxiliary gasifying process that utilizes synthetic gas to return burning according to claim 3 is characterized in that: the temperature of synthetic gas extraction point is controlled in the synthetic gas below the contained cindery fusing point.
6. the synthetic gas that utilizes that designs for the described technology of realization claim 1 returns the auxiliary equipment for gasification of burning, comprise vapourizing furnace (1) and subsequent processing device (2), the syngas outlet of vapourizing furnace (1) links to each other with the synthetic gas import of subsequent processing device (2), it is characterized in that: described subsequent processing device (2) is provided with synthetic gas extraction opening (12), described synthetic gas extraction opening (12) links to each other with the input terminus of recirculation blower (4), the output terminal of described recirculation blower (4) links to each other with synthetic gas nozzle (6), described synthetic gas nozzle (6) is arranged on the combustion chamber wall surface of vapourizing furnace (1) bottom, is used for spraying synthetic gas to the combustion chamber; Also be provided with oxygen jet (7) on the combustion chamber wall surface of described vapourizing furnace (1) bottom, be used for to combustion chamber injection of oxygen or oxygen-rich air.
7. the auxiliary equipment for gasification that utilizes synthetic gas to return burning according to claim 6 is characterized in that: the output terminal of described recirculation blower (4) links to each other with synthetic gas nozzle (6) by voltage stabilizing gas-holder (5).
8. according to claim 6 or the 7 described auxiliary equipment for gasification that utilize synthetic gas to return burning, it is characterized in that: the furnace wall of the top, combustion chamber of described vapourizing furnace (1) bottom is provided with secondary apparatus of oxygen supply (9), and the feedstock bed (10) that is used in vapourizing furnace (1) is located supplemental oxygen or oxygen-rich air.
9. according to claim 6 or the 7 described auxiliary equipment for gasification that utilize synthetic gas to return burning, it is characterized in that: the synthetic gas extraction opening (12) on the described subsequent processing device (2) locates to be provided with grey slag filter (3).
10. the auxiliary equipment for gasification that utilizes synthetic gas to return burning according to claim 8 is characterized in that: the synthetic gas extraction opening (12) on the described subsequent processing device (2) locates to be provided with grey slag filter (3).
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| CN 200910272196 CN101671576B (en) | 2009-09-22 | 2009-09-22 | Auxiliary gasification technique using synthesis gas to burnback and equipment thereof |
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| CN 200910272196 CN101671576B (en) | 2009-09-22 | 2009-09-22 | Auxiliary gasification technique using synthesis gas to burnback and equipment thereof |
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Cited By (3)
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| CN108506928A (en) * | 2018-04-16 | 2018-09-07 | 中国计量大学 | A kind of non-oil ignition system and method for circulating fluidized bed combustion coal boiler |
| CN108534175A (en) * | 2018-06-11 | 2018-09-14 | 大唐环境产业集团股份有限公司 | A kind of coal-burning boiler plasma gasification ignition smooth combustion apparatus and method |
| CN115784149A (en) * | 2022-11-10 | 2023-03-14 | 中国石油化工股份有限公司 | Material heating process for coupling synthesis gas preparation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BG109247A (en) * | 2005-07-29 | 2005-11-30 | Чавдар АНГЕЛОВ | Method for the conversion of coal into fuels |
| CN101003755B (en) * | 2006-01-19 | 2010-09-29 | 神华集团有限责任公司 | Gasification stove with multi nozzle, and gasification method |
| CN1935951B (en) * | 2006-09-21 | 2010-12-08 | 武汉凯迪工程技术研究总院有限公司 | High temperature gasifying apparatus for solid carbon raw material |
| CN101245264B (en) * | 2008-03-25 | 2011-02-16 | 东南大学 | Single-bed self-heating type thermal decomposition gasification combustion reactor and thermal decomposition gasification combustion method |
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2009
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506928A (en) * | 2018-04-16 | 2018-09-07 | 中国计量大学 | A kind of non-oil ignition system and method for circulating fluidized bed combustion coal boiler |
| CN108534175A (en) * | 2018-06-11 | 2018-09-14 | 大唐环境产业集团股份有限公司 | A kind of coal-burning boiler plasma gasification ignition smooth combustion apparatus and method |
| CN108534175B (en) * | 2018-06-11 | 2023-10-10 | 大唐环境产业集团股份有限公司 | Plasma gasification ignition stable combustion device and method for coal-fired boiler |
| CN115784149A (en) * | 2022-11-10 | 2023-03-14 | 中国石油化工股份有限公司 | Material heating process for coupling synthesis gas preparation |
| CN115784149B (en) * | 2022-11-10 | 2024-04-19 | 中国石油化工股份有限公司 | Material heating process for preparing coupling synthesis gas |
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