KR101255611B1

KR101255611B1 - Gasifier

Info

Publication number: KR101255611B1
Application number: KR1020110045165A
Authority: KR
Inventors: 문영섭; 박재현; 장용수; 정현태; 최수봉
Original assignee: 주식회사 포스코건설
Priority date: 2011-05-13
Filing date: 2011-05-13
Publication date: 2013-04-16
Also published as: KR20120126980A

Abstract

Disclosed is a gasifier for gasifying components such as ungasified tar and char contained in a synthesis gas produced by gasifying coal or raw materials such as coal and an organic compound at high temperature to be discharged to the outside.
Gasifier according to an embodiment of the present invention is a gasifier 200 configured to produce a synthesis gas by reacting the raw material and water in a predetermined high temperature state; The gasifier 200 is provided therein, and the synthesis gas produced in the gasifier 200 is introduced and flows for a predetermined time at a predetermined temperature to be discharged to the outside, thereby gasifying ungasified components included in the synthesis gas. Flow chamber 300 to be; And one side is connected to the gas outlet 311 provided in the flow chamber 300 and the other side is connected to the gasifier 200 through the flow chamber 300 and discharged from the flow chamber 300. A circulation unit 500 configured to collect impurities discharged from the gas and discharge them to the outside and gasify the ungasified components included in the synthesis gas in the gasifier 200; As shown in FIG.
According to the above configuration, the present invention includes a gasification furnace in which a gas is formed to produce a synthesis gas in a flow chamber so that the synthesis gas produced in the gasification furnace flows for a predetermined time at a predetermined temperature in the flow chamber. The ungasified tar and char can be gasified, and the gasification efficiency of the gasifier can be improved, and the impurities such as ash contained in the syngas discharged from the gasifier to the outside are collected and Into the gasifier by injecting the components, such as ungasified tar and char contained in the gasifier to be gasified, it is possible to prevent the ungasified components deposited on the boiler or filter connected to the rear end of the gasifier.

Description

Gasifier {GASIFIER}

The present invention relates to a gasifier for producing a synthesis gas by gasifying raw materials such as coal or a mixture of coal and organic compounds at high temperature, and more specifically, by raw material such as coal or a mixture of coal and organic compounds at high temperature The present invention relates to a gasifier for gasifying components such as ungasified tar and char contained in the manufactured synthesis gas to be discharged to the outside.

The gasifier is a device for producing a synthesis gas by gasifying the raw material at a high temperature. Among these gasifiers, coal gasifiers use synthetic gas mainly composed of carbon monoxide and hydrogen used in integrated gasification compression cycle, synthetic natural gas, and coal to liquid. It is a device to produce.

In a coal gasifier, for example, a raw material such as coal or a mixture of coal and organic compounds is injected at a high temperature of 1,100 ° C. or higher and in an oxygen-free or oxygen-free state, and the raw material is reacted with water, that is, water vapor. By the reaction of raw materials and water at such a high temperature, carbon monoxide and hydrogen are generated about 80%, and gases such as methane and some ammonia are produced depending on the temperature conditions.

In order to keep the coal gasifier at a high temperature, some of the raw materials such as coal or coal and organic compounds injected into the coal gasifier react with oxygen supplied to the coal gasifier to generate combustion heat to continuously heat the coal gasifier. do. The ash which is not gasified among the components of raw materials such as coal or a mixture of coal and organic compounds is melted in a high temperature coal gasifier and discharged to the outside through the lower portion of the coal gasifier in the form of slag.

Such gasification reaction is a reversible reaction, the composition of the synthesis gas is changed by the mutual competition of the reversible reaction, and the composition is mainly controlled by controlling the temperature of the gasifier.

When raw materials such as coal or a mixture of coal and organic compounds are injected into the gasifier, the physical process takes place in three stages: drying, volatilization and gasification.

The drying process is a process of evaporating and leaving at 100 ° C. or more while the water naturally contained in raw materials such as coal or a mixture of coal and organic compounds is injected into the gasifier before being injected into the gasifier. The volatilization process is a process in which organic compounds having low molecular weight are vaporized at about 400 ° C. among organic components included in raw materials such as coal or a mixture of coal and organic compounds. In addition, gasification is a process in which carbon contained in raw materials such as coal or a mixture of coal and organic compounds reacts with water, that is, water vapor, to generate carbon monoxide and hydrogen. In addition, the water evaporated in the drying process and the organic compound vaporized in the volatilization reaction in the gasifier produces gas such as carbon monoxide and hydrogen.

During this gasification reaction, there is a problem in that raw materials such as coal or a mixture of coal and organic compounds cannot be maintained at a sufficiently high temperature for a sufficient time due to the limitation of the height of the gasifier. Accordingly, there is a problem that ungasified components such as tar and char are generated in the manufactured synthesis gas. In addition, there is a problem in that such components, such as ungasified tar and char, are deposited on a device such as a boiler or a filter connected to the rear end of the gasifier. Accordingly, there is a problem that the efficiency of the gasifier is reduced by reducing the boiler efficiency and reducing the life of the filter and consequently impairing the stability of the entire process.

The present invention is made by recognizing at least one of the needs or problems occurring in the conventional gasifier as described above.

One aspect of the object of the present invention is to provide a gasifier in the flow chamber in which gasification is made to produce a synthesis gas.

Another aspect of the object of the present invention is to allow the synthesis gas produced in the gasifier to flow for a predetermined time at a predetermined temperature in the flow chamber.

Another aspect of the object of the present invention is to allow gasification of components such as ungasified tar and char contained in syngas.

Another aspect of the object of the present invention is to increase the gasification efficiency of the gasifier.

Another aspect of the object of the present invention is to collect gaseous impurities such as ash contained in the synthesis gas discharged from the gasifier to the outside and gasification by injecting the components such as ungasified tar and char contained in the synthesis gas into the gasifier It is to be possible.

Another aspect of the object of the present invention is to prevent the deposition of ungassed components, such as boilers or filters connected to the rear end of the gasifier.

A gasifier according to an embodiment for realizing at least one of the above problems may include the following features.

The present invention is based on a gasification furnace in which gasification is made basically so that the synthesis gas is produced in the flow chamber so that the synthesis gas produced in the gasification furnace flows at a predetermined temperature in the flow chamber for a predetermined time.

The gasifier according to one embodiment of the present invention is a gasification furnace configured to produce a synthesis gas by reacting the raw material and water in a predetermined high temperature state; A gas flow chamber having a gasifier inside and configured to allow the synthesis gas produced in the gasifier to flow in and flow out for a predetermined time and then discharge to the outside to gasify ungasified components contained in the synthesis gas; And one side is connected to the gas outlet provided in the flow chamber and the other side is connected to the gasifier through the flow chamber, and collects impurities contained in the synthesis gas discharged from the flow chamber to be discharged to the outside and ungasified in the synthesis gas. A circulation unit configured to gasify the purified components in the gasifier; As shown in FIG.

In this case, the gasifier is an injection unit configured to maintain a predetermined temperature at which the raw material and water are injected and the raw material and water react to gasify; And one side is connected to the injection unit and the other side is open and the gasification unit for the raw material and water injected into the injection unit reacts while flowing in a high temperature state to form a synthesis gas and flow into the flow chamber; Can be formed.

In addition, the injection portion is located in the lower portion of the flow chamber and the other open side of the gasification unit is located in the upper portion of the flow chamber and a gas discharge port is provided in the lower portion of the flow chamber so that the synthesis gas flows into the upper portion of the flow chamber and flows downward. Can be discharged to the outside.

The cross-sectional area of the injection unit may be larger than that of the gasification unit.

In addition, the injection unit may include at least one injection tube for injecting raw materials and water to the injection unit; And a preheating tube which injects fuel and oxygen into the injection unit and raises an ignition source to raise the temperature of the injection unit to a predetermined temperature at which the raw material and water react to gasify. It can be connected through the flow chamber.

In addition, the injection tube may be mixed with the raw material and water may be supplied in the form of a slurry.

In addition, the injection tube is made of a double tube and the inner tube is a raw material or a mixture of water or raw material and water is supplied in the injection portion is supplied in the injection portion in the form of a slurry, the outer tube is supplied with oxygen is injected into the injection portion injection portion G may be used to burn a portion of the raw material.

The flow chamber may include: a chamber body having a gasifier therein; And a cover covering one open side of the chamber body; It may include.

In addition, the water injection pipe for injecting water to the synthesis gas flowing into the flow chamber may be connected to the portion of the flow chamber through which the synthesis gas flows.

And an impurity discharge part connected to the gasifier through the flow chamber and configured to allow molten impurities not gasified in the gasifier to flow in and discharge to the outside; As shown in FIG.

In addition, the connection portion connecting the impurity discharge unit and the gasifier may be provided with a deceleration member for reducing the inflow rate of the molten impurities.

The deceleration member may have a ring shape and may be made of refractory material.

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And, the circulation portion is one side is connected to the gas outlet port for collecting a portion of the synthesis gas; A collecting part connected to the other side of the collecting pipe and configured to collect impurities contained in the synthesis gas and discharge them to the outside; And one side is connected to the collecting portion and the other side circulation pipe connected to the gasifier; It may include.

In addition, the raw material may be coal or a mixture of coal and an organic compound.

In addition, the gasification furnace is made of refractory, the flow chamber may be made of a refractory provided in the inner shell and the iron shell.

As described above, according to the exemplary embodiment of the present invention, a gasification furnace may be provided in the flow chamber through which gasification is performed and synthetic gas is manufactured.

In addition, according to an embodiment of the present invention, the synthesis gas produced in the gasifier may be allowed to flow for a predetermined time at a predetermined temperature in the flow chamber.

In addition, according to an embodiment of the present invention, the components such as ungasified tar and char contained in the synthesis gas can be gasified.

In addition, according to the embodiment of the present invention, it is possible to increase the gasification efficiency of the gasifier.

In addition, according to an embodiment of the present invention, by collecting impurities such as ash contained in the synthesis gas discharged to the outside from the gasifier and injecting the components such as ungasified tar and char contained in the synthesis gas into the gasifier Can be gasified.

In addition, according to an embodiment of the present invention, it is possible to prevent the ungassed components from being deposited on the boiler or filter connected to the rear end of the gasifier.

1 is a cross-sectional view of one embodiment of a gasifier according to the present invention.
Figure 2 is an enlarged cross-sectional view of the circulation portion of the gasifier according to the present invention.
3 is a cross-sectional view showing the operation of one embodiment of a gasifier according to the present invention.
4 is an enlarged cross-sectional view of a gasifier part of an embodiment of a gasifier according to the present invention.

In order to help the understanding of the features of the present invention as described above, it will be described in more detail with respect to the gasifier associated with the embodiment of the present invention.

Hereinafter, exemplary embodiments will be described based on embodiments best suited for understanding the technical characteristics of the present invention, and the technical features of the present invention are not limited by the illustrated embodiments, It is to be understood that the present invention may be implemented as illustrated embodiments. Accordingly, the present invention may be modified in various ways within the technical scope of the present invention through the embodiments described below, and such modified embodiments fall within the technical scope of the present invention. In order to facilitate understanding of the embodiments to be described below, in the reference numerals shown in the accompanying drawings, among the constituent elements which perform the same function in each embodiment, the related constituent elements are indicated by the same or an extension line number.

Embodiments related to the present invention are based on a gasification furnace in which gasification is made basically so that the synthesis gas is produced in the flow chamber so that the synthesis gas produced in the gasification furnace flows at a predetermined temperature in the flow chamber for a predetermined time.

As shown in FIG. 1, the gasifier 100 according to the present invention may include a gasifier 200 and a flow chamber 300.

The gasifier 200 may be configured to react the raw material and water in a predetermined high temperature state as shown in FIGS. 3 and 4 to produce a synthesis gas. The gasifier 200 may be made of refractory. As a result, the gasifier 200 may maintain a high temperature. However, the material constituting the gasifier 200 is not limited to refractory materials, and any material known in the art can be used as long as the material can maintain a high temperature state.

In the gasifier 200, an injection unit 210 and a gasifier 220 may be formed as shown in FIG. 1.

The injection unit 210 may be configured to maintain a predetermined temperature at which the raw material and the water are injected and the raw material and the water react to gasify. To this end, one or more injection tubes 211 and preheating tubes 212 may be connected to the injection unit 210 through the flow chamber 300 as in the embodiment shown in FIG. 1.

Raw material and water may be injected into the injection unit 210 through the injection tube 211. To this end, the injection tube 211 may be connected to a raw material supply source (not shown) or a water supply source (not shown). In addition, the raw material and water may be mixed and supplied to the injection tube 211 in the form of a slurry. Accordingly, the raw material and water may be injected into the injection unit 210 in the form of a slurry.

The injection tube 211 may be formed of a double tube. In this case, the inner tube of the double tube may be injected into the injection unit 210 by supplying the raw material or water or the raw material and water in the form of a slurry. Oxygen may be supplied to the outer tube to be injected into the injection unit 210. Accordingly, a portion of the raw material may be burned in the injection unit 210 and the temperature of the injection unit 210 may be maintained at a predetermined temperature at which the raw material reacts with water to be gasified.

The raw material injected into the injection unit 210 may be coal or a mixture of coal and an organic compound. However, the raw material injected into the injection unit 210 is not limited to coal or a mixture of coal and organic compounds, and may be any raw material that can be gasified by reacting with water at a high temperature.

In addition, fuel and oxygen, such as LNG, may be injected into the injection unit 210 through the preheating tube 212. To this end, the preheating tube 212 may be connected to a fuel supply (not shown) and an oxygen supply (not shown). In addition, the preheating tube 212 may be provided with an ignition source (not shown) such as, for example, a spark plug. Accordingly, in the state where fuel and oxygen are supplied to the injection unit 210 through the preheating tube 212 as shown in FIGS. 3 and 4, the injection unit 210 is provided by the ignition source provided in the preheating tube 212. Fuel may be ignited and combusted. In addition, the temperature of the injection unit 210 may be increased to a predetermined temperature, for example, 1500 ° C. or more, at which a raw material and water react to gasify.

As such, in the state where the temperature of the injection unit 210 is raised to a predetermined temperature at which fuel and water react to gasify, raw materials and water are injected through the injection tube 211 as shown in FIGS. 3 and 4. When injected into 210, a drying process in which water naturally contained in the raw material evaporates, and a volatilization process in which organic compounds having a low molecular weight among the organic components included in the raw material are vaporized occurs. The evaporated water and the volatilized raw material are gasified by the gasification reaction while flowing the gasification unit 220 to be described later, thereby producing a synthesis gas.

As shown in FIG. 1, the cross-sectional area of the injection unit 210 may be larger than that of the gasification unit 220. Since the cross-sectional area of the injection unit 210 is larger than the cross-sectional area of the gasification unit 220, as described above, the injection of raw materials and water or oxygen or fuel and oxygen may be easily performed. Accordingly, the reaction time between the raw material and the water may be long. And, gasification by the reaction of the raw material and water can be easily made. In addition, the pressure of the injection unit 210 may be increased due to gasification, but since the cross-sectional area of the injection unit 210 is larger than that of the gasification unit 220, the pressure of the injection unit 210 does not increase rapidly and is gentle. Can be raised. Accordingly, the refractory of the injection portion 210 may be prevented from being damaged by the sudden increase in pressure of the injection portion 210 due to gasification.

The gasification unit 220 may be connected to one side of the injection unit 210, as shown in the embodiment shown in FIG. And the other side can be opened. Accordingly, as described above and illustrated in FIG. 3, the raw material and the water may react with each other while flowing at a high temperature to be a synthesis gas. Then, it may flow into the flow chamber 300. As described above, since the cross-sectional area of the gasification unit 220 is smaller than the cross-sectional area of the injection unit 210, the raw material and water can be easily reacted while flowing at a high temperature to be a synthesis gas.

As shown in FIG. 1, the flow chamber 300 may include a gasifier 200 therein. Accordingly, the synthesis gas produced in the gasifier 200 as described above and shown in FIG. 3 may flow into the flow chamber 300. In addition, the flow chamber 300 may be configured such that the introduced synthesis gas flows for a predetermined time at a predetermined temperature, for example, about 1100 ° C., and then discharges to the outside. Accordingly, ungasified components such as tar and char in the syngas may be gasified while flowing through the flow chamber 300 and discharged to the outside. Therefore, the gasification efficiency of a gasifier can be improved. In addition, it is possible to prevent the deposition of ungassed components, such as tar or water, on the boiler or filter connected to the rear end of the gasifier. Therefore, it is possible to prevent the boiler efficiency from being reduced by ungasified components such as tar or char and to reduce the life of the filter.

On the other hand, the injection unit 210 may be located in the lower portion inside the flow chamber 300, as shown in the embodiment shown in FIG. The other open side of the gasification unit 220 may be positioned above the inside of the flow chamber 300. In addition, a gas discharge port 311 may be provided below the flow chamber 300. Accordingly, as shown in FIG. 3, the synthesis gas may flow into the upper portion of the flow chamber 300 and flow downward, and then discharged to the outside. Therefore, the time for the synthesis gas to flow at a predetermined temperature can be relatively long, so that gasification of the ungassed components contained in the synthesis gas such as tar or char can be easily performed.

As shown in FIG. 1, the flow chamber 300 may include a chamber body 310 and a cover 320. The chamber main body 310 may be provided inside the gasifier 200 as shown in the illustrated embodiment. In addition, the cover 320 may cover an open side of the chamber body 310, that is, an upper portion in the illustrated embodiment.

Flow chamber 300 may be provided with a refractory provided in the inner shell and the iron shell. Accordingly, the outer shape of the flow chamber 300 may be maintained by the iron shell, and a high temperature synthesis gas may flow inside the flow chamber 300 by the refractory material.

On the other hand, as shown in the embodiment shown in Figure 1, the water injection pipe 321 may be connected to a portion of the flow chamber 300, which is a synthesis gas flows, that is, the cover 320 of the flow chamber 300 in the embodiment shown in FIG. . As described above, water may be injected into the synthesis gas that is manufactured in the gasifier 200 as described above by the water spray pipe 321 and flows into the chamber body 310. To this end, the water spray pipe 321 may be connected to a water supply source (not shown). As such, when water is injected into the synthesis gas introduced into the flow chamber 300 by the water injection pipe 321, impurities (S) such as ash contained in the synthesis gas may be cooled. 3 and 4, impurities (S), such as ash, fall into the gasifier 200 and are melted to the impurity discharge part 400 connected to the gasifier 200 as will be described later. Can be introduced. Thereby, the impurity S, such as ash contained in the synthesis gas, can be removed. In addition, the flow of the synthesis gas may be controlled such that the synthesis gas produced in the gasifier 200 is easily introduced into the flow chamber 300 by adjusting the water injection angle of the water injection pipe 321.

Gasifier 100 according to the present invention may further include an impurity discharge unit 400 as shown in the embodiment shown in FIG. The impurity discharge part 400 may be connected to the gasifier 200 through the flow chamber 300, that is, the injection part 210 of the gasifier 200 in the illustrated embodiment. To this end, as shown in the illustrated embodiment, the impurity discharge part 400 may be connected to the injection part 210 of the gasifier 200 by the connection part 230. The impurity discharge unit 400 may be configured such that molten impurities S, such as ashes, which are not gasified in the gasifier 200 flows in and are discharged to the outside. To this end, the impurity discharge unit 400 may contain a cooling water (not shown) to cool the melted impurities (S). In addition, a shredding device 420 such as a grinder for shredding impurities S such as cooled ash and a conveying device 430 such as a screw conveyor for discharging the shredded impurities S to the outside may be provided.

Meanwhile, as shown in FIG. 1, the deceleration member 410 is connected to the impurity discharge part 400 and the gasification furnace 200, that is, the connection part 230 connecting the injection portion 210 of the gasification furnace 200. It may be provided. As a result, as illustrated in FIGS. 3 and 4, impurities S such as ash, which are melted in the injection unit 210 and flow along the inner wall of the injection unit 210 and the inner wall of the connection unit 230, are reduced. 410). Accordingly, the inflow rate of the impurity S into the impurity discharge part 400 can be reduced. Therefore, it is possible to prevent the gasifier 200 made of refractory material, that is, the injection part 210 of the gasifier 200 from being damaged by the flow of molten impurities S in the illustrated embodiment.

The deceleration member 410 may have a ring shape as shown in FIG. 1. And, it may be made of a refractory. However, the shape of the deceleration member 410 is not particularly limited, and any shape or material known in the art may be used as long as it reduces the inflow rate of the molten impurity (S) provided in the connection portion 230.

In addition, the gasifier 100 according to the present invention may further include a circulation unit 500 as shown in the embodiment shown in FIG. One side of the circulation part 500 may be connected to the gas outlet 311 provided in the flow chamber 300. In addition, the other side may be connected to the gasifier 200 through the flow chamber 300, that is, to the injection unit 210 of the gasifier 200 in the illustrated embodiment. In addition, the impurity (S) contained in the synthesis gas discharged from the flow chamber 300 is collected and discharged to the outside, and the ungasified components such as tar and char contained in the synthesis gas are gasified in the gasifier 200. Can be.

To this end, as shown in FIGS. 1 and 2, the circulation part 500 may include a collecting pipe 510, a collecting part 520, and a circulation pipe 530.

The collecting pipe 510 may be connected to the gas outlet 311 of one side of the flow chamber 300 as shown in FIGS. 1 and 2. As shown in the illustrated embodiment, the collecting pipe 510 may be connected to a lower portion of the gas outlet 311. Accordingly, as shown in FIGS. 3 and 4, a part of the syngas discharged to the gas outlet 311 may be introduced into the collecting pipe 510. In addition, since impurities (S) such as ash contained in the synthesis gas or ungasified components such as tar and char are denser than the synthesis gas, they are included in the lower portion of the synthesis gas and flow together with the synthesis gas or flow chamber 300. Can be stacked on the bottom of the). However, as illustrated in FIGS. 3 and 4, impurities (S) such as ashes accumulated in the synthesis gas or accumulated in the lower portion of the flow chamber 300, or ungasified components such as tar and char may be combined with the gas outlet. It may flow into the collection pipe 510 connected to the lower portion of the 311. The shape of the collection pipe 510 is not particularly limited, and any shape known in the art can be used as long as a part of the synthesis gas is easily introduced therein.

On the other hand, the synthesis gas not introduced into the collection pipe 510 may be discharged to the outside through the gas outlet 311, for example, may be introduced into the boiler (not shown) connected to the gas outlet 311.

As illustrated in FIGS. 1 and 2, the collecting unit 520 may be connected to the other side of the collecting tube 510. And, it may be configured to collect impurities (S), such as ash contained in the synthesis gas to discharge to the outside. For example, the collecting unit 520 may have a collecting space to collect impurities (S) such as ash contained in the synthesis gas. 3 and 4, impurities (S) such as ash flowing into the collection pipe 510 together with the synthesis gas may be collected in the collection space. In addition, the discharge unit 521 may be connected to the collecting unit 520 as shown in the illustrated embodiment. And, the discharge pipe 521 may be provided with a valve. Therefore, when impurities S such as ashes of a predetermined amount are collected in the collecting unit 520, the valve may be opened to allow the syngas to be discharged to the outside through the discharge pipe 521. As a result, impurities (S) such as ash collected in the collecting part 520 may be discharged to the outside together with the synthesis gas.

However, the configuration of the collecting unit 520 is not particularly limited, and for example, a filter is provided to collect impurities S such as ashes, and the like is trapped to collect external impurities S such as ashes included in the synthesis gas. Any structure known in the art can be used as long as it can be discharged.

One side of the circulation pipe 530 may be connected to the collecting unit 520 as shown in FIGS. 1 and 2. The other side may be connected to the gasifier 200, that is, the injection unit 210 of the gasifier 200 in the illustrated embodiment. Therefore, as described above, the synthesis gas from which impurities S such as ashes are removed from the collecting unit 520 may be re-introduced into the injection unit 200 of the gasifier 200 through the circulation pipe 530. Accordingly, ungasified components such as tar and char in the syngas may be gasified in the gasifier 200. In addition, impurities (S), such as ash, included in the synthesis gas may be melted in the gasifier 200 and introduced into the impurity discharge unit 400 as described above, and then discharged to the outside.

When the gasifier according to the present invention is used as described above, the gasifier is formed so that the synthesis gas is produced in the flow chamber so that the synthesis gas produced in the gasifier flows in the flow chamber for a predetermined time at a predetermined temperature. Ungasified tar and char contained in gas can be gasified, gasification efficiency of gasifier can be increased, and impurities such as ash contained in syngas discharged from gasifier to outside are collected. The ungasified tar and char contained in the syngas may be injected into the gasifier to be gasified, and the ungasified components may not be deposited in a boiler or filter connected to the rear end of the gasifier.

The gasifier described above may not be limitedly applied to the configuration of the above-described embodiment, but the embodiments may be configured by selectively combining all or some of the embodiments so that various modifications can be made.

100: gasifier 200: gasifier
210: injection unit 211: injection tube
212: preheating tube 220: gasification unit
230: connection portion 300: flow chamber
310: chamber body 311: gas outlet
320: cover 321: water spray pipe
400: impurity discharge part 410: deceleration member
420: shredding device 430: transfer device
500: circulation 510: collecting tube
520: collecting unit 521: discharge pipe
530: circulation tube S: impurities

Claims

A gasifier 200 configured to react the raw material with water at a predetermined high temperature to produce a synthesis gas;
The gasifier 200 is provided therein, and the synthetic gas produced in the gasifier 200 is introduced and flows for a predetermined time at a predetermined temperature, and then discharged to the outside. A flow chamber 300 to be gasified; And
One side is connected to the gas outlet 311 provided in the flow chamber 300 and the other side is connected to the gasifier 200 through the flow chamber 300 and discharged from the flow chamber 300 A circulation unit 500 configured to collect impurities discharged from the gas and discharge them to the outside and gasify ungasified components included in the synthesis gas in the gasifier 200;
Gasifier configured including.

According to claim 1, wherein the gasifier 200
An injection unit 210 configured to maintain a predetermined temperature at which the raw material and the water are injected and the raw material and the water react to gasify; And
One side is connected to the injection unit 210 and the other side is open so that the raw material and water injected into the injection unit 210 reacts while flowing in a high temperature state to become a synthesis gas and then flow into the flow chamber 300. Gasification unit 220;
Gasifier, characterized in that formed.

3. The flow chamber of claim 2, wherein the injection unit 210 is positioned below the flow chamber 300, and the other open side of the gasification unit 220 is located above the flow chamber 300. Gas discharge port 311 is provided in the lower portion of the 300 is a gasifier characterized in that the synthesis gas is introduced into the upper portion of the flow chamber 300 and flows to the bottom and then discharged to the outside.

The gasifier of claim 2, wherein the cross-sectional area of the injection unit (210) is larger than the cross-sectional area of the gasifier (220).

The method of claim 2, wherein the injection portion 210
At least one injection tube 211 for injecting raw material and water into the injection portion 210; And
A preheating tube 212 which injects fuel and oxygen into the injection unit 210 and raises an ignition source to raise the temperature of the injection unit 210 to a predetermined temperature at which the raw material and the water react to gasify;
Gasifier, characterized in that connected through the flow chamber 300.

The gasifier of claim 5, wherein the injection pipe (211) is mixed with a raw material and water and supplied as a slurry.

According to claim 6, The injection tube 211 is made of a double tube and the inner tube is a raw material or a mixture of water or raw material and water is supplied in the form of a slurry is injected into the injection unit 210, the outer tube The gasifier is characterized in that the oxygen is supplied to be injected into the injection portion 210 to burn a part of the raw material in the injection portion (210).

The method of claim 1, wherein the flow chamber 300
A chamber body 310 having the gasifier 200 provided therein; And
A cover 320 covering an open side of the chamber body 310;
Gasifier comprising a.

The gasifier of claim 1, wherein a water injection pipe (321) for injecting water into the synthesis gas flowing into the flow chamber (300) is connected to a portion of the flow chamber (300) through which the synthesis gas flows.

The impurity discharge of claim 1, wherein molten impurity (S) which is not gasified in the gasifier 200 is introduced into the gasifier 200 through the flow chamber 300 and is discharged to the outside. Unit 400; Gasifier further comprises a.

The method of claim 10, wherein the connecting portion 230 for connecting the impurity discharge unit 400 and the gasifier 200 is provided with a deceleration member 410 for reducing the inflow rate of the molten impurities (S) Gasifier.

The gasifier of claim 11, wherein the deceleration member (410) is ring-shaped and made of refractory material.

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The method of claim 1, wherein the circulation unit 500
A collecting pipe 510 having one side connected to the gas discharge port 311 to introduce a part of the synthesis gas;
A collecting part 520 connected to the other side of the collecting pipe 510 and configured to collect impurities S included in the synthesis gas and discharge them to the outside; And
One side is connected to the collecting unit 520 and the other side is the circulation pipe 530 connected to the gasifier 200;
Gasifier comprising a.

The gasifier of claim 1, wherein the raw material is coal or a mixture of coal and organic compounds.

The gasifier of claim 1, wherein the gasification furnace (200) is made of refractory material, and the flow chamber (300) is made of refractories provided in the inner shell and the inner shell.