CN105482840A - Coal gasification equipment - Google Patents
Coal gasification equipment Download PDFInfo
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- CN105482840A CN105482840A CN201511021227.5A CN201511021227A CN105482840A CN 105482840 A CN105482840 A CN 105482840A CN 201511021227 A CN201511021227 A CN 201511021227A CN 105482840 A CN105482840 A CN 105482840A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/04—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of powdered coal
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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
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/466—Entrained flow processes
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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
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/54—Gasification of granular or pulverulent fuels by the Winkler technique, i.e. by fluidisation
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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
- C10J3/58—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels combined with pre-distillation of the fuel
- C10J3/60—Processes
- C10J3/64—Processes with decomposition of the distillation products
- C10J3/66—Processes with decomposition of the distillation products by introducing them into the gasification zone
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/04—Purifying combustible gases containing carbon monoxide by cooling to condense non-gaseous materials
- C10K1/046—Reducing the tar content
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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
- 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
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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
- 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
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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
- 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
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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
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention provides coal gasification equipment which comprises a coal pyrolysis reactor, a separation device and a semicoke gasifier. The coal pyrolysis reactor is provided with a powdered coal inlet and a gas-solid guide outlet which is used for outputting gas-solid mixed products comprising coal pyrolysis products and solid thermal carriers. The coal pyrolysis products comprise semicoke and oil gas. The separation device is communicated with the gas-solid guide outlet, used for separating the gas-solid mixed products and provided with an oil gas guide outlet, a semicock guide outlet and a solid thermal carrier outlet. The solid thermal carrier outlet is communicated with a coal pyrolysis reactor. The semicoke gasifier is communicated with the semicock guide outlet and provided with a semicoke gasified gas guide outlet which is communicated with the coal pyrolysis reactor and the separation device. The coal gasification equipment can gasify the powdered coal in oil gas, the semicoke is recycled, and the separation efficiency of semicoke, coal gas and tar is improved.
Description
Technical field
The present invention relates to technical field of coal chemical industry, be specifically related to a kind of coal gasification apparatus.
Background technology
The general layout of China's energy is oil starvation, weak breath, rich coal, needs oil product and combustion gas from national energy strategy.At present, China implements diversification of energy strategy, and developing clean coal technology is one of countermeasure implementing national energy diversification strategy.Wherein pulverized coal pyrolysis technology is due to advantages such as fine coal source are wide, fine coal cost is low, oil pump capacity is many, becomes the clean coal technology with certain competitive power and development prospect.
According to the difference of type of heating, pulverized coal pyrolysis technology can be divided into can be divided into external-heat, internal heat type and inside and outside and hot type pyrolysis; Solid catalysis thermophore, gas catalysis thermophore and the pyrolysis of gas-solid catalysis thermophore can be divided into according to the type of catalysis thermophore; Fixed bed, fluidized-bed and air flow bed can be divided into according to the running status classification of solid materials.
Wherein, internal heat type pyrolysis be by gaseous combustion after high-temperature flue gas as gas catalysis thermophore, heat is passed to coal charge, catalysis thermophore directly enters destructive distillation room, through the block destructive distillation bed of material, heat is passed to the bed of material.The weak point of internal heat type pyrolysis oven is that the coal loading destructive distillation room must be block, and its granularity of general requirement, at 25 ~ 80mm, has enough ventilation properties with what ensure destructive distillation indoor to the bed of material, ensures that gas catalysis thermophore can pass the bed of material.Fluidized bed pyrolysis take fine coal as raw material, and gas carries out fluidisation pyrolysis as fluidizing medium to coal dust.Its weak point is the restriction by dedusting technology, and make dustiness in obtained tar higher, tar production intractability is large.
Such as, but current pulverized coal pyrolysis technology still exists diversified problem, cannot process fine coal, many containing coal dust in tar, powdery semicoke cannot Appropriate application, and the separation efficiency of semicoke, coal gas, tar is low.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is to overcome the low defect of separation efficiency of semicoke in prior art, coal gas, tar.
For this reason, the invention provides a kind of coal gasification apparatus, comprising: pyrolysis of coal reactor, be provided with fine coal opening for feed and gas-solid export mouth, described gas-solid export mouth is for exporting the gas-solid mixing product comprising pyrolysis of coal product and solid thermal carriers, and described pyrolysis of coal product comprises semicoke and oil gas; Tripping device, is communicated with described gas-solid export mouth, for separating of described gas-solid mixing product, be provided with the outlet of oil gas export mouth, semicoke export mouth and solid thermal carriers, and the outlet of described solid thermal carriers is communicated with described pyrolysis of coal reactor; Char Gasification device, is communicated with described semicoke export mouth, is provided with the outlet of char Gasification conductance, and described char Gasification conductance outlet is communicated with described tripping device with described pyrolysis of coal reactor.
As preferably, described tripping device comprises: the first gas-solid separator, being communicated with described gas-solid export mouth, being provided with for exporting the described oil gas export mouth containing coke powder oil gas being separated and obtaining, and for exporting the solid materials export mouth being separated solid thermal carriers and the semicoke obtained; Solid separator, with described solid materials export mouth and char Gasification conductance outlet, be provided with the described semicoke export mouth for exporting semicoke, for exporting the described solid thermal carriers outlet of solid thermal carriers, and the gas mixture export mouth of gas mixture for output packet oily and char Gasification gas.
As preferably, described fine coal opening for feed is arranged at the bottom of described pyrolysis of coal reactor, and described gas-solid export mouth is arranged at the top of described pyrolysis of coal reactor; Described oil gas export mouth is arranged at the top of described first gas-solid separator, and described solid materials export mouth is arranged at the bottom of described first gas-solid separator; Described semicoke export mouth is arranged at the top of described solid separator, and described semicoke export mouth is arranged on the sidewall of described solid separator, and described solid thermal carriers outlet is arranged at the bottom of described solid separator; Described char Gasification conductance outlet is arranged at the top of described char Gasification device.
As preferably, material seal apparatus is equipped with in the bottom of described first gas-solid separator.
As preferably, described tripping device also comprises: the second gas-solid separator, be communicated with described oil gas export mouth, for from described containing isolating semi-coke powder in coke powder oil gas, and described second gas-solid separator is provided with the first semi-coke powder be communicated with described char Gasification device and exports.
As preferably, described tripping device also comprises: the 3rd gas-solid separator, be communicated with described gas mixture export mouth, for isolating semi-coke powder from described gas mixture, and described 3rd gas-solid separator be provided with the second semi-coke powder be communicated with described char Gasification device and export.
As preferably, described coal gasification apparatus also comprises the condensate cooler be communicated with the air outlet of described 3rd gas-solid separator with described second gas-solid separator, for carrying out fractional condensation to from described second gas-solid separator and the isolated gas of described 3rd gas-solid separator, obtaining combustion gas, tar and containing powder slurry oil.
As preferably, described condensate cooler is provided with containing the outlet of powder slurry oil, gas outlet and tar outlet, described outlet containing powder slurry oil is communicated with described char Gasification device.
As preferably, described first gas-solid separator, described second gas-solid separator and described 3rd gas-solid separator are cyclonic separator.
As preferably, be directed at from described semicoke export mouth a part of semicoke out beyond described coal gasification apparatus.
As preferably, the bottom of described char Gasification device is provided with oxygen intake and grey slag outlet.
As preferably, described coal gasification apparatus also comprise be communicated with successively fine coal feed bin, fine coal boosting storehouse and fine coal feed hopper, and described fine coal feed hopper is communicated with described fine coal opening for feed.
Technical solution of the present invention, tool has the following advantages:
Coal gasification apparatus provided by the invention, comprise the pyrolysis of coal reactor being provided with fine coal opening for feed and gas-solid export mouth, the tripping device be communicated with gas-solid export mouth, and the char Gasification device to be communicated with semicoke export mouth, and char Gasification device is provided with the outlet of char Gasification conductance, the outlet of char Gasification conductance is communicated with described tripping device with described pyrolysis of coal reactor.The gas-solid mixture that pyrolysis of coal reactor can produce by tripping device is separated and obtains oil gas, semicoke is led and solid thermal carriers, thus reduced the fine coal in oil gas, simultaneously, char Gasification device can by char Gasification, and the char Gasification gas that char Gasification is formed enters tripping device from bottom, char Gasification gas transfers heat to solid thermal carriers on the one hand, on the other hand char Gasification gas provides fluidisation power for semicoke is separated with solid thermal carriers, due to the density variation (solid thermal carriers density is greater than semicoke density) of semicoke and solid thermal carriers, semicoke is derived by the middle and upper part of tripping device, the all or part of char Gasification device that enters gasifies, thus make semicoke obtain recycle, and improve semicoke, coal gas, the separation efficiency of tar.
Coal gasification apparatus provided by the invention, fine coal thermo-cracking and gasification are realized in a technique, realize maximum utility value separately, its fine coal efficiency of carbon conversion is high, and increases the yield that tar yield low-temperature rapid thermal solution improves tar to greatest extent; Oxygen consumption rate is low, avoids the gasification of tar component; The temperature out of char Gasification gas is low, and high-temperature position energy recovery is abundant, and energy utilization efficiency is high; The method does not produce extra containing tar sewage, economic environmental protection; Enriched oil coal slurry returns gasification, can solve the coal-tar middle oil problem containing coal dust of conventional pulverized coal pyrolytic process; Pressurization coal thermo-cracking and coke gasification can reduce equipment size greatly, make full use of the pressure energy of splitting gas and synthetic gas.
Accompanying drawing explanation
In order to be illustrated more clearly in the specific embodiment of the invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the coal gasification apparatus that Fig. 1 provides for embodiments of the present invention;
1-pyrolysis of coal reactor; 11-fine coal opening for feed; 12-gas-solid export mouth; 2-tripping device; 21-first gas-solid separator; 211-oil gas export mouth; 212-solid materials export mouth; 22-solid separator; 221-semicoke export mouth; 222-solid thermal carriers export; 223-gas mixture export mouth; 23-second gas-solid separator; 231-first semi-coke powder exports; 24-the 3rd gas-solid separator; 241-second semi-coke powder exports; 3-char Gasification device; 31-char Gasification conductance exports; 32-oxygen intake; 33-ash slag outlet; 4-condensate cooler; 41-is containing the outlet of powder slurry oil; 42-gas outlet; 43-tar outlet; 5-fine coal feed bin; 6-fine coal boosting storehouse; 7-fine coal feed hopper.
Embodiment
Be clearly and completely described technical scheme of the present invention below in conjunction with accompanying drawing, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In describing the invention, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second ", " the 3rd " only for describing object, and can not be interpreted as instruction or hint relative importance.
In addition, if below in the described different embodiment of the present invention involved technical characteristic do not form conflict each other and just can be combined with each other.
Embodiments provide a kind of coal gasification apparatus, as shown in Figure 1, comprising:
Pyrolysis of coal reactor 1, is provided with fine coal opening for feed 11 and gas-solid export mouth 12, and described gas-solid export mouth 12 is for exporting the gas-solid mixing product comprising pyrolysis of coal product and solid thermal carriers, and described pyrolysis of coal product comprises semicoke and oil gas;
Tripping device 2, be communicated with described gas-solid export mouth 12, for separating of described gas-solid mixing product, be provided with oil gas export mouth 211, semicoke export mouth 221 and solid thermal carriers outlet 222, and described solid thermal carriers outlet 222 is communicated with described pyrolysis of coal reactor 1;
Char Gasification device 3, is communicated with described semicoke export mouth 221, is provided with char Gasification conductance outlet 31, and described char Gasification conductance outlet 31 is communicated with described tripping device 2 with described pyrolysis of coal reactor 1.
The gas-solid mixture that pyrolysis of coal reactor can produce by tripping device is separated and obtains oil gas, semicoke is led and solid thermal carriers, thus reduced the fine coal in oil gas, simultaneously, char Gasification device can by char Gasification, and the char Gasification gas that char Gasification is formed enters tripping device from bottom, char Gasification gas transfers heat to solid thermal carriers on the one hand, on the other hand char Gasification gas provides fluidisation power for semicoke is separated with solid thermal carriers, due to the density variation (solid thermal carriers density is greater than semicoke density) of semicoke and solid thermal carriers, semicoke is derived by the middle and upper part of tripping device, the all or part of char Gasification device that enters gasifies, thus make semicoke obtain recycle, and improve semicoke, coal gas, the separation efficiency of tar.
The feeding manner of fine coal has a variety of, as preferred embodiment, described coal gasification apparatus also comprise be communicated with successively fine coal feed bin 5, fine coal boosting storehouse 6 and fine coal feed hopper 7, and described fine coal feed hopper 7 is communicated with described fine coal opening for feed 11.
Particularly, the process of fine coal charging and reaction is: fine coal is transported in fine coal feed bin 5 by handling equipment, then being interrupted after being boosted by fine coal boosting 6 pairs, storehouse fine coal delivers in fine coal feed hopper 7, and fine coal feed hopper 7 provides the fine coal charging of continous-stable for pulverized coal pyrolysis reactor 1.And the fine coal from fine coal feed hopper and the solid thermal carriers from solid separator 22 mix at pyrolysis reactor 1 bottom even, complete heat exchanging process rapidly, and under the conveying of char Gasification gas, upwards promote and complete pyrolytic reaction process fast in pulverized coal pyrolysis reactor 1, generating coal tar, pyrolysis gas and semicoke.
As preferred embodiment, described tripping device 2 comprises: the first gas-solid separator 21, be communicated with described gas-solid export mouth 12, be provided with for exporting the described oil gas export mouth 211 containing coke powder oil gas being separated and obtaining, and for exporting the solid materials export mouth 212 being separated solid thermal carriers and the semicoke obtained; Solid separator 22, export 31 with described solid materials export mouth 212 and char Gasification conductance to be communicated with, be provided with the described semicoke export mouth 221 for exporting semicoke, for exporting the described solid thermal carriers outlet 222 of solid thermal carriers, and the gas mixture export mouth 223 of gas mixture for output packet oily and char Gasification gas.
The effect of above-mentioned first gas-solid separator 21 has been oil gas and being separated of solid, and is about to separate containing coke powder oil gas and solid thermal carriers and semicoke.Above-mentioned solid separator 22 Main Function has been that semicoke is separated with thermal barrier.And the char Gasification gas that char Gasification is formed enters solid separator 22 from bottom, on the one hand char Gasification gas transfers heat to solid thermal carriers, and char Gasification gas provides fluidisation power for semicoke is separated with solid thermal carriers on the other hand.Due to the density variation (solid thermal carriers density is greater than semicoke density) of semicoke and solid thermal carriers, semicoke is derived by the middle and upper part of solid separator 22, and all or part of char Gasification device 3 that enters gasifies.
As the embodiment improved, the first gas-solid separator 21 and above-mentioned solid separator 22 are integrated in one apparatus, and namely tripping device 2 is the integrated equipments comprising the first gas-solid separator 21 and above-mentioned solid separator 22.
As further preferred embodiment, described fine coal opening for feed 11 is arranged at the bottom of described pyrolysis of coal reactor 1, and described gas-solid export mouth 12 is arranged at the top of described pyrolysis of coal reactor 1; Described oil gas export mouth 211 is arranged at the top of described first gas-solid separator 21, and described solid materials export mouth 212 is arranged at the bottom of described first gas-solid separator 21; Described semicoke export mouth 221 is arranged at the top of described solid separator 22, and described semicoke export mouth 221 is arranged on the sidewall of described solid separator 22, and described solid thermal carriers outlet 222 is arranged at the bottom of described solid separator 22; Described char Gasification conductance outlet 31 is arranged at the top of described char Gasification device 3.
As preferred embodiment, material seal apparatus is equipped with in the bottom of described first gas-solid separator 21, is used for preventing the gas in solid separator 22 from playing a reversed role.Material seal apparatus, to be U-shaped material seal apparatus, also can be guiding valve material envelope.
In order to be separated further the solid particulate in gas phase, as preferred embodiment, described tripping device 2 also comprises: the second gas-solid separator 23, be communicated with described oil gas export mouth 211, for from described containing isolating semi-coke powder in coke powder oil gas, and described second gas-solid separator 23 is provided with the first semi-coke powder be communicated with described char Gasification device 3 and exports 231; 3rd gas-solid separator 24, is communicated with described gas mixture export mouth 223, for isolating semi-coke powder from described gas mixture, and described 3rd gas-solid separator 24 is provided with the second semi-coke powder be communicated with described char Gasification device 3 and exports 241.
Oil gas, semicoke and thermal barrier complete gas solid separation in the first gas-solid separator 21, the solid thermal carriers of the overwhelming majority and most semicoke is separated gets off to deliver in solid separator 22, the oil gas of a small amount of coke powder of oil-containing enters the second gas-solid separator 23 and is again separated.And the gas mixture comprising coke powder oil gas and char Gasification gas that solid separator (22) exports passes into the 3rd gas-solid separator 24, and isolates semi-coke powder from described gas mixture.
As further preferred embodiment, described first gas-solid separator 21, described second gas-solid separator 23 and described 3rd gas-solid separator 24 are cyclonic separator.
Above-mentioned char Gasification device 3 is by the device of powdery char Gasification.The object of char Gasification device 3 is for pulverized coal pyrolysis reaction provides thermal source, and is gasified by unnecessary powdery semicoke.The structural shape of char Gasification device 3 can have various ways, such as, can adopt the pattern of airflow bed gasification furnace, namely adopts nozzle powdery semicoke and the vaporized chemical such as oxygen, steam fully to be mixed to be injected in char Gasification device 3 and gasify; Also can adopt the pattern of fluidized-bed gasification furnace, oxygen and water vapour pass into bottom char Gasification device 3.Char Gasification device 3 can be slag tap, also can be dry ash extraction.
Preferably, the bottom of described char Gasification device 3 is provided with oxygen intake 32 and grey slag outlet 33.Preferably, be directed at from described semicoke export mouth 221 a part of semicoke out beyond described coal gasification apparatus.
As preferred embodiment, described coal gasification apparatus also comprises the condensate cooler 4 be communicated with the air outlet of described 3rd gas-solid separator 24 with described second gas-solid separator 23, for carrying out fractional condensation to from described second gas-solid separator 23 and the isolated gas of described 3rd gas-solid separator 24, obtaining combustion gas, tar and containing powder slurry oil.
The synthetic gas of deriving from the 3rd gas-solid separator 24 top together with pyrolysis gas/deliver to condensate cooler 4 respectively, realize tar, coal gas, separation containing powder slurry oil, can send back in char Gasification device 3 containing powder slurry oil and again gasify.
Further preferred, described condensate cooler 4 is provided with containing powder slurry oil outlet 41, gas outlet 42 and tar outlet 43, is describedly communicated with described char Gasification device 3 containing powder slurry oil outlet 41.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain of the invention.
Claims (12)
1. a coal gasification apparatus, is characterized in that, comprising:
Pyrolysis of coal reactor (1), be provided with fine coal opening for feed (11) and gas-solid export mouth (12), described gas-solid export mouth (12) is for exporting the gas-solid mixing product comprising pyrolysis of coal product and solid thermal carriers, and described pyrolysis of coal product comprises semicoke and oil gas;
Tripping device (2), be communicated with described gas-solid export mouth (12), for separating of described gas-solid mixing product, be provided with oil gas export mouth (211), semicoke export mouth (221) and solid thermal carriers outlet (222), and described solid thermal carriers outlet (222) are communicated with described pyrolysis of coal reactor (1);
Char Gasification device (3), be communicated with described semicoke export mouth (221), be provided with char Gasification conductance outlet (31), described char Gasification conductance outlet (31) is communicated with described tripping device (2) with described pyrolysis of coal reactor (1).
2. coal gasification apparatus according to claim 1, is characterized in that, described tripping device (2) comprising:
First gas-solid separator (21), be communicated with described gas-solid export mouth (12), be provided with for exporting the described oil gas export mouth (211) containing coke powder oil gas being separated and obtaining, and for exporting the solid materials export mouth (212) being separated solid thermal carriers and the semicoke obtained;
Solid separator (22), export (31) with described solid materials export mouth (212) with char Gasification conductance to be communicated with, be provided with the described semicoke export mouth (221) for exporting semicoke, for exporting described solid thermal carriers outlet (222) of solid thermal carriers, and for the gas mixture export mouth (223) of output packet containing the gas mixture of coke powder oil gas and char Gasification gas.
3. coal gasification apparatus according to claim 2, is characterized in that,
Described fine coal opening for feed (11) is arranged at the bottom of described pyrolysis of coal reactor (1), and described gas-solid export mouth (12) is arranged at the top of described pyrolysis of coal reactor (1);
Described oil gas export mouth (211) is arranged at the top of described first gas-solid separator (21), and described solid materials export mouth (212) is arranged at the bottom of described first gas-solid separator (21);
Described gas mixture export mouth (223) is arranged at the top of described solid separator (22), described semicoke export mouth (221) is arranged on the sidewall of described solid separator (22), and described solid thermal carriers outlet (222) are arranged at the bottom of described solid separator (22);
Described char Gasification conductance outlet (31) is arranged at the top of described char Gasification device (3).
4. coal gasification apparatus according to claim 3, is characterized in that, material seal apparatus is equipped with in the bottom of described first gas-solid separator (21).
5. coal gasification apparatus according to claim 2, is characterized in that, described tripping device (2) also comprises:
Second gas-solid separator (23), be communicated with described oil gas export mouth (211), for from described containing isolating semi-coke powder in coke powder oil gas, and described second gas-solid separator (23) is provided with the first semi-coke powder be communicated with described char Gasification device (3) and exports (231).
6. coal gasification apparatus according to claim 5, is characterized in that, described tripping device (2) also comprises:
3rd gas-solid separator (24), be communicated with described gas mixture export mouth (223), for isolating semi-coke powder from described gas mixture, and described 3rd gas-solid separator (24) is provided with the second semi-coke powder be communicated with described char Gasification device (3) and exports (241).
7. coal gasification apparatus according to claim 6, it is characterized in that, described coal gasification apparatus also comprises the condensate cooler (4) be communicated with the air outlet of described 3rd gas-solid separator (24) with described second gas-solid separator (23), for carrying out fractional condensation to from described second gas-solid separator (23) and described 3rd gas-solid separator (24) isolated gas, obtaining combustion gas, tar and containing powder slurry oil.
8. coal gasification apparatus according to claim 7, it is characterized in that, described condensate cooler (4) is provided with containing powder slurry oil outlet (41), gas outlet (42) and tar outlet (43), described powder slurry oil outlet (41) that contains is communicated with described char Gasification device (3).
9. coal gasification apparatus according to claim 6, is characterized in that, described first gas-solid separator (21), described second gas-solid separator (23) and described 3rd gas-solid separator (24) are cyclonic separator.
10. coal gasification apparatus according to any one of claim 1 to 9, is characterized in that, is directed at from described semicoke export mouth (221) a part of semicoke out beyond described coal gasification apparatus.
11. coal gasification apparatus according to any one of claim 1 to 9, is characterized in that, the bottom of described char Gasification device (3) is provided with oxygen intake (32) and grey slag outlet (33).
12. coal gasification apparatus according to any one of claim 1 to 9, it is characterized in that, described coal gasification apparatus also comprises the fine coal feed bin (5), fine coal boosting storehouse (6) and the fine coal feed hopper (7) that are communicated with successively, and described fine coal feed hopper (7) is communicated with described fine coal opening for feed (11).
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201834893U (en) * | 2010-07-30 | 2011-05-18 | 陕西华祥能源科技集团有限公司 | Fluidized bed pulverized coal gasification and solid heat carrier pyrolysis coupled petroleum coproduction device |
| CN104893748A (en) * | 2015-06-16 | 2015-09-09 | 西安元创化工科技股份有限公司 | Method for producing tar and hydrocarbon fuel products from coal |
| CN105087078A (en) * | 2015-09-08 | 2015-11-25 | 航天长征化学工程股份有限公司 | Indirect pyrolysis system and pyrolysis method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201834893U (en) * | 2010-07-30 | 2011-05-18 | 陕西华祥能源科技集团有限公司 | Fluidized bed pulverized coal gasification and solid heat carrier pyrolysis coupled petroleum coproduction device |
| CN104893748A (en) * | 2015-06-16 | 2015-09-09 | 西安元创化工科技股份有限公司 | Method for producing tar and hydrocarbon fuel products from coal |
| CN105087078A (en) * | 2015-09-08 | 2015-11-25 | 航天长征化学工程股份有限公司 | Indirect pyrolysis system and pyrolysis method thereof |
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