CN85104714A - The working method of reactor for gasifying solid fuels - Google Patents
The working method of reactor for gasifying solid fuels Download PDFInfo
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- CN85104714A CN85104714A CN85104714.9A CN85104714A CN85104714A CN 85104714 A CN85104714 A CN 85104714A CN 85104714 A CN85104714 A CN 85104714A CN 85104714 A CN85104714 A CN 85104714A
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- gas
- fuel
- coal gas
- pulverizing jet
- molten slag
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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]
Abstract
Particulate state coke and oxygen and carbon dioxide gas carry out gasification reaction under the working pressure of 1-50 crust in the Reaktionsofen fixed bed.Aphlogistic slag component is discharged with fluid slag form molten slag relief outlet under fixed bed in the fuel, and slag drainage situation is subjected to the control of pulverizing jet ejection gas, and this gas is imported in the slag discharge outlet.Oxygen and the fuel gas that contains dustless chilled product gas are sent into coal gas head pulverizing jet, and the product coal gas that gasification reaction generates is cooled to 120 ℃～200 ℃, wherein contains 85 volume % carbon monoxide (butt) at least.The mixed gas that the gaseous fuel of sending into pulverizing jet also can be made up of product coal gas and carbon dioxide.
Description
The invention relates under the 1-50 bar pressure, the working method of particulate solid fuel gasification Reaktionsofen, solid fuel wherein be dress in gasification reacting furnace, form slowly precipitated solid bed downwards, simultaneously, to oxygen and the carbon dioxide of its conveying as vaporized chemical.Aphlogistic slag component in the fuel, with the fluid slag form, the slag discharge port below fixed bed is discharged outside vapourizing furnace.The drainage situation of molten slag is the control that is subjected to coal gas head pulverizing jet, and coal head or pulverizing jet carry out burn operation with gasiform fuel.Liquid fuel has generated burning gas after the pulverizing jet burning, this burning gas is injected in the molten slag relief outlet place.And the product coal gas that generates in the gasification reacting furnace after vapourizing furnace is left in the fixed bed top in the stove, carries out dedusting and cooling process to it.
The working method of the above-mentioned type and the vapourizing furnace that is applicable to this working method have been well-known.And in following relevant document, report to some extent for a long time.For example, british patent specification, GB1,098,552 and GB.1,512,677; The patent specification of Germany's bulletin, DE.4,180,387, with corresponding relevant United States Patent (USP), U.S.4,180,387.The gaseous product coal gas of producing with the above-mentioned known working method of narrating about document is rich in hydrogen and carbon monoxide, and can remove preparation example such as synthetic gas etc. to its processing of carrying out a step.
Main purpose of the present invention is, produces a kind of product coal gas, requires this coal gas to be rich in carbon monoxide, requires this coal gas to be rich in carbon monoxide, but will make the hydrogen component in the coal gas manage to be reduced to bottom line.Now, can the method according to this invention go to realize above-mentioned purpose, promptly use the solid fuel of coke, the gaseous fuel of sending into hydrogen and forming to coal gas head pulverizing jet by dedusting and the product that cooled off as gasification reaction.And in gasification reacting furnace, the product coal gas that generates by gasification reaction is reduced to 120～200 ℃ through the temperature of cooling process, and to contain at least in the butt volume percent be 85% carbon monoxide.
A tree name method of the present invention, because adopt coke as vaporising fuel, and the hydrogen richness in the coke is very low, so the growing amount of hydrogen is few in gasification reaction, and because the effect of the oxygen of sending in the gasification reaction makes the most hydrogen of coke change into water with oxygen reaction in gasification.In most of the cases, require the content of the hydrogen in the coke raw material to be no more than 5% weight percent, preferably do not surpass 1% weight percent.The coke that is used for gasification reaction can be prepared by different raw materials, and it can be to generate high temperature coke from the coking of coal, also can be refinery coke (petroleumcoke).But the optimum burnt grain size that is used for the solid coke of gasification reaction is 3～60 millimeters.Because the portioned product coal gas in the production process is as gaseous fuel, be sent to the coal gas pulverizing jet that is used for controlling molten slag drainage situation, so burning, this gaseous fuel in the burning gas that is generated, only contains the hydrogen and the steam of minute quantity on pulverizing jet.Said fuel gas is by the slag relief outlet, enters into gasification reacting furnace and the gasification reaction of stove is exerted an influence.The temperature range of the burning gas that is generated by coal gas head pulverizing jet is 1400 ℃～2000 ℃.This burning gas mainly contains two effects, and its monoenergetic size by its pressure, removes to control in the vapourizing furnace molten slag by the drainage situation of molten slag relief outlet, and can prevent near the curing of the liquid state molten slag the molten slag relief outlet.For the ease of regulating the temperature of burning gas, be recommended in and send in the coal head gas pulverizing jet gaseous fuel, inject the carbon dioxide of control ratio, and blending mutually.
Take after the 3 foregoing technical measures, we just can produce a kind of product coal gas, and this coal gas is in by tornado dust collector, or after the cooling in the waste heat boiler that comes succeeding, in butt, carbon monoxide volume content wherein is 85% at least.
With reference to relevant accompanying drawing, an embodiment in this narration the inventive method.
This accompanying drawing has been described gasification reacting furnace and utility appliance device thereof.Carry out gasification reaction in the fixed bed in gasification reacting furnace 12 of particulate state coke.Air lock 3(lock chamber) coke in can pass through unlimited charging valve 4 in circular gap ground, sends in the gasification reacting furnace 1.When feeding valve 5 opens wide, can pass through valve 5 for coke outward, enter into and fill up air lock 3, available carbon dioxide blows down air lock 3.This carbon dioxide gas is by 6 sending in the air lock 3 among the figure.
The hybrid gasification agent that carbon dioxide gas and oxygen are formed is sent in the fixed bed 2 in the reaction vapourizing furnace CO in the hybrid gasification agent by some vaporized chemical nozzles 7,8
2: O
2Volume ratio generally be in 0.6～2 scope, preferably 0.7～1.3.Oxygen and the coke sent in the reaction vapourizing furnace 1 carry out partial combustion, and the heat that burning generates has become the needed heat of gasification reaction of heat absorption.After the burning and gasification reaction of coke in vapourizing furnace, generated the product coal gas that is rich in carbon monoxide.This product coal gas is by gas exit 10, the cyclone scrubber 11 of flowing through, wherein coal gas dedusting here; Then coal gas is directly sent into waste heat boiler 14, and gas temperature is cooled off in the scope that drops to 120～200 ℃.In the cyclone scrubber 11, the solid grit of separating from coal gas stream can pass through pipeline 12, feed in the one or more vaporized chemical nozzles 8, then again cyclically utilizing in gasification reacting furnace 1.The phlegma that generates in waste heat boiler 14 by pipeline 15, discharges.
Product coal gas leaves waste heat boiler 14 by pipeline 16.A part of product gas line 16 guiding pipelines 17 wherein then by the gas blower 17a on the pipeline 17, are carried this portioned product coal gas from pulverizing jet 18.From the burning gas that pulverizing jet 18 generates, on the injected molten slag relief outlet 19 that is placed in gasification reacting furnace 1 bottom.And the storage collection liquid state molten slag in molten slag storage pond 20 or continuously, or off and on, is discharged outside the vapourizing furnaces by molten slag relief outlet 19, and the drainage situation of molten slag is the control that is subjected to the pressure of the burning gas that generated by pulverizing jet 18.We can improve illustrated layout in the accompanying drawing, can be arranged on pulverizing jet 18 in the molten slag chamber 23, make penetrate in the nozzle of burning gas circular permutation from pulverizing jet after, around the guiding molten slag relief outlet 19.British patent specification, GB.1,512,677 have narrated the details of relevant molten slag relief outlet 19 and the pulverizing jet 18 that is suitable for.
Oxygen is sent into coal gas head pulverizing jet 18 by pipeline 21, so that the burning gas temperature that generates can maintain in needed about 1400～2000 ℃ scope.Simultaneously, with suitable control ratio, by pipeline 22, in the product coal gas on pipeline 17, add carbon dioxide, this carbon dioxide has been the effect that relaxes conditioning agent, to allow to controlledly reduce the temperature from the burning gas of pulverizing jet 18 generations.
Export 19 effusively from molten slag, the liquid state molten slag that flows downward flows to molten slag chamber 23.Molten slag is indoor a pond 24, in 23 bottoms, molten slag chamber a valve 25 is housed, this valve 25 is opened off and on, so that the mixture of molten slag and water can flow into the cylinder 30 among the figure, this mixture can pass through cylinder 30 bottoms, and intermittently the valve of opening 31 discharges.
In fact, by vaporized chemical nozzle 7 and 8, in the material that gasification reacting furnace 1 is sent into, do not contain hydrogen and steam, and generate by pulverizing jet 18, the molten slag of flowing through outlet 19 and molten slag storage pond 20 be sent in the burning gas in the vapourizing furnace internal fixing bed 2 also few of hydrogen and moisture content.Consequently, the nitrogen in the product coal gas in the pipeline 10 and the content of hydrogen, mainly be the component that depends on used coke, so, just can produce the product coal gas of the carbon monoxide that contains 90% volume percent at least at an easy rate if can suitably select coke for use.
Example
In layout shown in accompanying drawing, coke is with 2400 kilograms/hour speed gasify (disregarding moisture and ash content), the granular size of coke is in the scope of 3-60 milliliter, in order to regulate molten some temperature of molten slag, speed and the coke together blending of Wingdale with 150 kilograms/hour.In known gasification reacting furnace 1, carry out the gasification reaction of coke.This vapourizing furnace is developed by the Gas Company (British Gas Corporation) and the Lu Qi company (Lurgi) of Britain, and the working pressure of this gas furnace is 5 crust.
The ultimate analysis of coke:
C 96.3%(weight meter)
H 0.7%(weight meter)
O 0.7%(weight meter)
N 1.1%(weight meter)
S 1.2%(weight meter)
100.0%(weight meter)
With 1313 standard rices
3/ hour speed industrial oxygen and with 1110 standard rices
3/ hour speed carbon dioxide together, send in the vapourizing furnace 1 by the vaporized chemical nozzle, by with coke gasification, produce 5000 standard rices
3/ hour product coal gas.The product coal gas that generates by pipeline 10, is sent outside the vapourizing furnace 1; The whirlwind of flowing through letter particle collector 11 carries out the dedusting of coal gas; Cool in waste heat boiler again, leave waste heat boiler then, enter pipeline 16, product temperature of gas has at this moment dropped to 140 ℃, and has composition as follows (butt)
CO
2The 3.0%(volumeter)
CO
2The 92.5%(volumeter)
CH
4The 0.0%(volumeter)
H
2The 0.0%(volumeter)
H
2The 3.0%(volumeter)
N
2The 1.5%(volumeter)
Some coal gas wherein is with 76 standard rices
3/ hour data rate stream on pipeline 17, send into pulverizing jet 18.By pipeline 22, with 86 standard rices
3/ hour speed, in the gaseous fuel of pipeline 17, add carbon dioxide.By pipeline 21, with 38 standard rices
3/ hour speed, to pulverizing jet 18 delivering oxygens.
Claims (3)
1, under 1～50 crust working pressure, the working method of particulate solid combustion gasification Reaktionsofen, wherein, fuel is to be contained in the gasification reacting furnace, formed downward at leisure precipitated solid bed simultaneously, to oxygen and the carbon dioxide of its conveying as vaporized chemical, aphlogistic slag component is with the molten slag form of liquid state in the fuel, molten slag relief outlet below solid bed is discharged outside vapourizing furnace, the drainage situation of molten slag is subjected to the control of coal gas head pulverizing jet, and this pulverizing jet carries out burn operation with gaseous fuel, liquid fuel is after the pulverizing jet burning, generated burning gas, this burning gas is injected in the molten slag relief outlet place, and the product coal gas that gasification reacting furnace generates, after vapourizing furnace is left in fixed bed top in the stove, carry out dedusting and cooling process, it is characterized in that, used solid fuel is granular coke, the gas of sending into coal gas head pulverizing jet is oxygen and the fuel be made up of dedusting and the product coal gas that cooled off, and through cooling 120-200 ℃ later, wherein to calculate with butt be 85% product coal gas to the carbon monoxide volume content at least, outwards carries from vapourizing furnace.
2, the method for a tree name claim 1 is characterized in that, with the suitable proportion of control, in the geseous fuel of sending into pulverizing jet, adds carbon dioxide gas, and fusion mutually.
3, a tree name claim 1 or 2 method is characterized in that, in the dedusting and product coal gas 120-200 ℃ and that live through rough scavenging process that cools, calculate with butt, contain the carbon monoxide of 90% volume percent at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85104714 CN1013875B (en) | 1984-07-20 | 1985-06-19 | Method of operating reactor for gasifying solid fuels |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19843426912 DE3426912A1 (en) | 1984-07-20 | 1984-07-20 | A process for operating a reactor for the gasification of solid fuels |
| CN 85104714 CN1013875B (en) | 1984-07-20 | 1985-06-19 | Method of operating reactor for gasifying solid fuels |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85104714A true CN85104714A (en) | 1986-12-17 |
| CN1013875B CN1013875B (en) | 1991-09-11 |
Family
ID=25741793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85104714 Expired CN1013875B (en) | 1984-07-20 | 1985-06-19 | Method of operating reactor for gasifying solid fuels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1013875B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101220297B (en) * | 2008-01-30 | 2011-12-28 | 广东科达机电股份有限公司 | Method and apparatus for gas production |
| CN102703120A (en) * | 2012-06-08 | 2012-10-03 | 内蒙古宜化化工有限公司 | Preparation method of raw gas for producing sodium formate |
| CN102732324A (en) * | 2012-07-02 | 2012-10-17 | 西北化工研究院 | Method for preparing carbon monoxide from carbon-containing raw material, and obtained product |
-
1985
- 1985-06-19 CN CN 85104714 patent/CN1013875B/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101220297B (en) * | 2008-01-30 | 2011-12-28 | 广东科达机电股份有限公司 | Method and apparatus for gas production |
| CN102703120A (en) * | 2012-06-08 | 2012-10-03 | 内蒙古宜化化工有限公司 | Preparation method of raw gas for producing sodium formate |
| CN102732324A (en) * | 2012-07-02 | 2012-10-17 | 西北化工研究院 | Method for preparing carbon monoxide from carbon-containing raw material, and obtained product |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1013875B (en) | 1991-09-11 |
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