CN105567332A - Pressurized fixed bed pure oxygen continuous gasification device and process adaptive to various coal quality - Google Patents
Pressurized fixed bed pure oxygen continuous gasification device and process adaptive to various coal quality Download PDFInfo
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- CN105567332A CN105567332A CN201510973001.9A CN201510973001A CN105567332A CN 105567332 A CN105567332 A CN 105567332A CN 201510973001 A CN201510973001 A CN 201510973001A CN 105567332 A CN105567332 A CN 105567332A
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- pure oxygen
- coal
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- 239000003245 coal Substances 0.000 title claims abstract description 72
- 238000002309 gasification Methods 0.000 title claims abstract description 63
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000003044 adaptive effect Effects 0.000 title abstract 2
- 239000007789 gas Substances 0.000 claims abstract description 64
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000005406 washing Methods 0.000 claims abstract description 11
- 239000000428 dust Substances 0.000 claims abstract description 8
- 230000003068 static effect Effects 0.000 claims description 15
- 239000010881 fly ash Substances 0.000 claims description 7
- 230000000630 rising effect Effects 0.000 claims description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 235000011089 carbon dioxide Nutrition 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 239000002826 coolant Substances 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 claims description 4
- 239000003830 anthracite Substances 0.000 claims description 4
- 239000000571 coke Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000003034 coal gas Substances 0.000 abstract description 11
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 5
- 238000000746 purification Methods 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- 238000001816 cooling Methods 0.000 abstract 2
- 238000004064 recycling Methods 0.000 abstract 2
- 239000006227 byproduct Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 230000009466 transformation Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 230000006978 adaptation Effects 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000002956 ash Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- CBHOOMGKXCMKIR-UHFFFAOYSA-N azane;methanol Chemical compound N.OC CBHOOMGKXCMKIR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/20—Apparatus; Plants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/06—Continuous processes
- C10J3/16—Continuous processes simultaneously reacting oxygen and water with the carbonaceous material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/20—Apparatus; Plants
- C10J3/30—Fuel charging devices
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/82—Gas withdrawal means
- C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2200/00—Details of gasification apparatus
- C10J2200/15—Details of feeding means
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/093—Coal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/0943—Coke
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0959—Oxygen
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0969—Carbon dioxide
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0973—Water
- C10J2300/0976—Water as steam
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1603—Integration of gasification processes with another plant or parts within the plant with gas treatment
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1603—Integration of gasification processes with another plant or parts within the plant with gas treatment
- C10J2300/1615—Stripping
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Industrial Gases (AREA)
Abstract
The invention relates to a pressurized fixed bed pure oxygen continuous gasification device and process adaptive to various coal quality. The pressurized fixed bed pure oxygen continuous gasification device and process is characterized in that CO2, pure oxygen and superheated steam are used as gasification agents, and gasification reaction of the gasification agents and raw material coal occurs in a fixed bed pure oxygen continuous gasification furnace to generate gasification coal gas; the gasification coal gas enters a dust remover, the solid particles in the gasification coal gas are removed, and a water cooling device is arranged on the upper portion of the efficient dust remover and used for recycling part of sensible heat of the gasification coal gas; the gasification coal gas enters a heat-pipe heat exchanger after the dust removing to perform heat recycling, and low-pressure steam is produced as the byproduct; the low-temperature gasification coal gas enters a low-pressure coal gas washing tower, final cooling and dust removing are performed, the washed water gas is directly sent to downstream users, and gasometers are not needed. The CO and H2 contents in the gasification coal gas can reach above 80%, the proportion adjusting range of the CO in the coal gas is 40-65%, the proportion adjusting range of the H2 is 5-40%, and raw material gas which can be used as various chemical products can be obtained through further treatment by processes such as transformation and purification.
Description
Technical field
The invention belongs to Coal Gasification Technology field, be specifically related to a kind of pressurization static bed pure oxygen continuous gasification device and the technique that adapt to multiple ature of coal.
Background technology
At present, existing pure oxygen continuous gasification process is generally with secondary metallurgical, carbonic acid gas, pure oxygen for gasified raw material, and at high temperature, red-hot carbon and carbonic acid gas generation redox reaction produce raw gas (CO:68 ~ 70%, CO
2: 28 ~ 29%, H
2+ N
2: 1 ~ 1.2%), then prepare qualified synthetic gas synthesis associated downstream product through purification, conversion.But, quite high (the fugitive constituent about 1% of ingredient requirement that this technique uses, fixed carbon about 82.5%, the burnt standard of country's secondary), cost is high (the burnt market price 1800-2000 yuan/ton of secondary, and low-rank coal interior ground 500-700 yuan/ton) also, and this technique is only produced carbon monoxide and is suitable for, if demand hydrogen, the conversion of unstripped gas also to be carried out.
Present stage, China's atmospheric gasification technique was all based on hard coal, had lump coal, moulded coal etc., due to technologic defect, cause the conversion efficiency of carbon content in coal low, after gasification, in lime-ash, the content of carbon residue is higher, and generally between 8-15%, residual carbon content when fluctuating appears in technique in lime-ash can be higher.Current atmospheric gasification mainly contains air+steam and oxygen enrichment+steam two kinds of techniques, in these two kinds of techniques, effective Gas content of gasification gas is all lower, and generally all below 75%, final coal gas is normal pressure, need to arrange gas holder to carry out cushioning and storing, need when downstream user uses to carry out supercharging.
At present, any one gasifying process all can be attended by CO
2the generation of gas, current technique be all through after recycle after operation separating treatment or to another one device, or to airborne release, cause environmental pollution, energy dissipation.Outstanding along with environmental problem, CO
2emission reduction work is particularly important, how to optimize gasifying process, reduces CO
2generation, realize CO
2recycle to be one of the important development direction of China's environmental technology.
At present, existing gasification technology has atmospheric gasification and pressurized gasification, the pressurized gasification technology also do not matched with existing synthetic ammonia methanol industry, and the energy consumption of synthetic ammonia methyl alcohol basis chemical industry remains high always.
Summary of the invention
The object of this invention is to provide a kind of non-exhaust emission, product directly can deliver to the multiple ature of coal of adaptation of downstream user pressurization static bed pure oxygen continuous gasification device and technique without the need to gas holder.
For achieving the above object, the technical solution used in the present invention is, a kind of pressurization static bed pure oxygen continuous gasification device adapting to multiple ature of coal, comprises gas mixer, fixed bed coal gasifier, fly-ash separator, interchanger and the gas wash tower of connecting successively; Be provided with feed bin above fixed bed coal gasifier, be provided with anti-bias current device in fixed bed coal gasifier, the bottom of feed bin is communicated with the top of anti-bias current device; The arranged outside of fixed bed coal gasifier has water wall, and the arranged outside of fly-ash separator has watercooler.
Described pressurization static bed pure oxygen continuous gasification device also comprises drum, drum is respectively arranged with water service pipe, rising pipe, return line; Rising pipe, water wall, return line are connected successively; The top of watercooler is connected with water service pipe, and the bottom of watercooler is connected with water coolant inlet pipe.
Even gas distribution device is installed bottom described fixed bed coal gasifier.
Described even gas distribution device can adopt conventional gas uniform device; Preferably, even gas distribution device comprises cylindrical shell, is provided with porous plate in cylindrical shell, is filled with inert ceramic balls above porous plate.
Described anti-bias current device is hollow structure, is formed by connecting in turn by upper, middle and lower, and top is frustum of a cone tubular, and middle part is the tubular of falling frustum of a cone, and bottom is cylindric.
The pure oxygen continuous gasification process of the pressurization static bed pure oxygen continuous gasification device of the multiple ature of coal of the adaptation described in utilization, comprises the following steps: joined by feed coal in feed bin, by entering in fixed bed coal gasifier after anti-bias current device; Oxygen (purity more than 99.6%), carbonic acid gas, overheated (water) steam are sent in gas mixer respectively and mixed, then enters fixed bed coal gasifier through even gas distribution device, by the feed coal gasification fallen from anti-bias current device; Enter fly-ash separator from the gasification gas of fixed bed coal gasifier discharge and carry out dedusting, the gasification gas after dedusting enters gas wash tower after interchanger heat exchange, and the gasification gas after gas wash tower washing is discharged from gas washing top of tower.
Preferably, the pressure in fixed bed coal gasifier is 0.1 ~ 0.2MPa.
Described feed coal is coke, anthracite block coal or moulded coal.
In the present invention, in gasification gas composition, CO proportion adjustment scope is 40%-65%, H
2proportion adjustment scope be 5%-40%, three kinds of vaporized chemicals (by oxygen, carbonic acid gas, superheated vapour) can carry out proportion adjustment according to the composition of demand gas.
The technique effect that the present invention produces is: the present invention is with CO
2, pure oxygen and vapour mixture be vaporized chemical, adopt pressurization static bed pure oxygen continuous gasification technology, steam decomposition rate is high, and effective gas composition is high, CO+H
2>82%; The present invention carries out gasification reaction to coal under 0.1 ~ 0.2MPa, the gasification gas of discharging from fixed bed coal gasifier need not compress, and directly can be sent to clean unit, save larger power consumption, discharging gasification gas from gas washing top of tower does not need institute's cabinet to store, and directly can deliver to downstream user.The present invention has widened the raw material route of coal gasification, and coke, anthracite block coal or moulded coal etc. can be adopted to be gasified raw material coal, lower to the specification of quality of coal.The present invention is by CO
2gasify as vaporized chemical, be converted into CO available gas, there is significant environmental benefit and economic benefit.
Accompanying drawing explanation
Fig. 1 is the structural representation of the pressurization static bed pure oxygen continuous gasification device of the multiple ature of coal of adaptation of embodiment 1;
Fig. 2 is the structural representation of anti-bias current device in Fig. 1;
Fig. 3 is the structural representation of even gas distribution device in Fig. 1.
Embodiment
Embodiment 1
Below in conjunction with specific embodiment, the invention will be further described, but protection scope of the present invention is not limited thereto.
As Figure 1-3, a kind of pressurization static bed pure oxygen continuous gasification device adapting to multiple ature of coal, comprises gas mixer 6, fixed bed coal gasifier 1, tornado dust collector 2, hot tube heat exchanger 3 and the gas wash tower 4 of connecting successively; Be provided with feed bin 12 above fixed bed coal gasifier 1, be provided with anti-bias current device 13 in fixed bed coal gasifier 1, the bottom of feed bin 12 is communicated with by flange with the top of anti-bias current device 13; The arranged outside of fixed bed coal gasifier 1 has water wall 14, and the arranged outside of tornado dust collector 2 has watercooler 15.
The pressurization static bed pure oxygen continuous gasification device of the multiple ature of coal of described adaptation also comprises drum 7, drum 7 is respectively arranged with water service pipe 10, rising pipe 8, return line 9; Rising pipe 8, water wall 14, return line 9 are connected successively; The upper outlet of watercooler 15 is connected with water service pipe 10, and the lower inlet of watercooler 15 is connected with water coolant inlet pipe 17.
Bottom described fixed bed coal gasifier 1, even gas distribution device 11 is installed; Described even gas distribution device 11 comprises cylindrical shell 1101, is provided with porous plate 1103 in cylindrical shell 1101, is filled with inert ceramic balls 1102 above porous plate 1103.
Described anti-bias current device 13 is hollow, is formed by connecting in turn by top 1301, middle part 1302, bottom 1303, and top 1301 is frustum of a cone tubular, and middle part 1302 is the tubular of falling frustum of a cone, and bottom 1303 is cylindric.
Described gas wash tower 4 top is connected with washing water water inlet pipe 16, and gas wash tower 4 bottom is connected with lithium bromide cooling-water machine group 5.
Pure oxygen continuous gasification process, comprises the following steps: joined by feed coal in feed bin 12, by entering in fixed bed coal gasifier 1 after anti-bias current device 13; Oxygen, carbonic acid gas, overheated (water) steam are sent into respectively in gas mixer 6 and mixed, then fixed bed coal gasifier 1 is entered through even gas distribution device 11, by the feed coal gasification fallen from anti-bias current device 13, the pressure in fixed bed coal gasifier is 0.15MPa; Enter tornado dust collector 2 from the gasification gas of fixed bed coal gasifier 1 discharge and carry out dedusting, gasification gas after dedusting enters gas wash tower 4 after hot tube heat exchanger 3 heat exchange, by after the water washing that enters from washing water water inlet pipe 16 in gas wash tower 4, gasification gas is discharged from gas wash tower 4 top, and the washing water obtained bottom gas wash tower 4 then enter in lithium bromide cooling-water machine group 5 and carry out Exposure degree.Described feed coal is coke.
The water coolant (de-salted water) entered from water coolant inlet pipe 17 enters the lower inlet of watercooler 15, enters in watercooler 15, then flows out from the upper outlet of watercooler 15, then enters in bubble 7 through water service pipe 10; In bubble 7, water enters in water wall 14 through rising pipe 8, through return line 9 is back in bubble after carrying out heat exchange to fixed bed coal gasifier 1.
Gasification gas in the present embodiment after gas wash tower 4 washing is directly picked to downstream user, does not need gas holder.CO and H in this gasification gas
2content can reach more than 80%, and in coal gas composition, CO proportion adjustment scope is 40%-65%, H
2proportion adjustment scope be 5%-40%, deepen process further through techniques such as conversion, purifications and can be used as the unstripped gas of multiple Chemicals.
Embodiment 2
Embodiment 2 is with the difference of embodiment 1, and the pressure in described fixed bed coal gasifier is 0.1MPa, and described feed coal is anthracite block coal.
Embodiment 3
Embodiment 3 is with the difference of embodiment 1, and the pressure in described fixed bed coal gasifier is 0.2MPa, and described feed coal is moulded coal.
Claims (8)
1. adapt to a pressurization static bed pure oxygen continuous gasification device for multiple ature of coal, it is characterized in that, comprise gas mixer, fixed bed coal gasifier, fly-ash separator, interchanger and the gas wash tower of connecting successively; Be provided with feed bin above fixed bed coal gasifier, be provided with anti-bias current device in fixed bed coal gasifier, the bottom of feed bin is communicated with the top of anti-bias current device; The arranged outside of fixed bed coal gasifier has water wall, and the arranged outside of fly-ash separator has watercooler; Even gas distribution device is installed bottom described fixed bed coal gasifier.
2. pressurization static bed pure oxygen continuous gasification device as claimed in claim 1, is characterized in that, also comprise drum, drum is respectively arranged with water service pipe, rising pipe and return line; Rising pipe, water wall, return line are connected successively; The top of watercooler is communicated with water service pipe, and the bottom of watercooler is connected with water coolant inlet pipe.
3. pressurization static bed pure oxygen continuous gasification device as claimed in claim 1, is characterized in that, described even gas distribution device comprises cylindrical shell, is provided with porous plate, is filled with inert ceramic balls above porous plate in cylindrical shell.
4. pressurization static bed pure oxygen continuous gasification device as claimed in claim 1, is characterized in that, described anti-bias current device is hollow structure, is formed by connecting in turn by upper, middle and lower, and top is circular cone tubular, and middle part is inverted cone tubular, and bottom is cylindric.
5. pressurization static bed pure oxygen continuous gasification device as claimed in claim 1, described fly-ash separator is tornado dust collector, and interchanger is hot tube heat exchanger.
6. utilize a pure oxygen continuous gasification process for the device described in claim 1, it is characterized in that, comprise the following steps: feed coal is joined in feed bin, by entering in fixed bed coal gasifier after anti-bias current device; Oxygen, carbonic acid gas, superheated vapour are sent in gas mixer respectively and mixes, then enter fixed bed coal gasifier through even gas distribution device, by the feed coal gasification fallen from anti-bias current device; Enter fly-ash separator from the gasification gas of fixed bed coal gasifier discharge and carry out dedusting, the gasification gas after dedusting enters gas wash tower after interchanger heat exchange, and the gasification gas after gas wash tower washing is discharged from gas washing top of tower.
7. pure oxygen continuous gasification process as claimed in claim 6, it is characterized in that, the pressure in fixed bed coal gasifier is 0.1 ~ 0.2MPa.
8. pure oxygen continuous gasification process as claimed in claim 6, it is characterized in that, described feed coal is coke, anthracite block coal or moulded coal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510973001.9A CN105567332B (en) | 2015-12-23 | 2015-12-23 | A kind of pressurization static bed pure oxygen continuous gasification device and technique for adapting to a variety of coals quality |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510973001.9A CN105567332B (en) | 2015-12-23 | 2015-12-23 | A kind of pressurization static bed pure oxygen continuous gasification device and technique for adapting to a variety of coals quality |
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| Publication Number | Publication Date |
|---|---|
| CN105567332A true CN105567332A (en) | 2016-05-11 |
| CN105567332B CN105567332B (en) | 2018-06-26 |
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|---|---|---|---|
| CN201510973001.9A Active CN105567332B (en) | 2015-12-23 | 2015-12-23 | A kind of pressurization static bed pure oxygen continuous gasification device and technique for adapting to a variety of coals quality |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112520695A (en) * | 2020-12-14 | 2021-03-19 | 河南骏化发展股份有限公司 | Process for improving catalyst activity and saving steam by adjusting steam drum pressure |
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| CN104327881A (en) * | 2014-10-16 | 2015-02-04 | 煤炭科学技术研究院有限公司 | Liquid continuous slag-removal fixed bed gasification furnace and gasification method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104327881A (en) * | 2014-10-16 | 2015-02-04 | 煤炭科学技术研究院有限公司 | Liquid continuous slag-removal fixed bed gasification furnace and gasification method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112520695A (en) * | 2020-12-14 | 2021-03-19 | 河南骏化发展股份有限公司 | Process for improving catalyst activity and saving steam by adjusting steam drum pressure |
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