KR20160036305A - Distribution Plate Device For Fluidizing Bed Reactor And Fluidizing Bed Reactor With The Same - Google Patents
Distribution Plate Device For Fluidizing Bed Reactor And Fluidizing Bed Reactor With The Same Download PDFInfo
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- KR20160036305A KR20160036305A KR1020140128357A KR20140128357A KR20160036305A KR 20160036305 A KR20160036305 A KR 20160036305A KR 1020140128357 A KR1020140128357 A KR 1020140128357A KR 20140128357 A KR20140128357 A KR 20140128357A KR 20160036305 A KR20160036305 A KR 20160036305A
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- gas
- bed reactor
- raw material
- dispersion plate
- fluidized bed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
- B01J8/44—Fluidisation grids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
- B01J8/46—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique for treatment of endless filamentary, band or sheet material
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/05—Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00796—Details of the reactor or of the particulate material
- B01J2208/00823—Mixing elements
- B01J2208/00858—Moving elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
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- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Nanotechnology (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
According to the present invention, a dispersion plate in which a plurality of holes through which a raw material gas flows are formed; And a plurality of gas injecting portions provided corresponding to the plurality of holes, wherein each gas injecting portion has a cap supported by two or more columns, and the raw material gas can be injected through an interval between the columns, And a gas injecting portion. Further, a fluidized bed reactor provided with a dispersion plate device according to the present invention is provided.
Description
BACKGROUND OF THE
Fluidized bed reactors are reactor devices that can be used to perform a variety of multiphase chemical reactions. In a fluidized bed reactor, a fluid (gas or liquid) reacts with a solid material in a particulate state, typically the solid material is a catalyst having the shape of a small sphere and the fluid is flowed at a rate sufficient to float the solid material So that the solid material behaves like a fluid.
On the other hand, carbon nanostructures (CNS) refer to nano-sized carbon structures having various shapes such as nanotubes, nanofibers, fullerenes, nanocons, nanohorns, and nano-rods and have various excellent properties It is highly utilized in various technical fields. Carbon nanotubes (CNTs), which are typical carbon nanostructures, are formed by bonding three neighboring carbon atoms to each other in a hexagonal honeycomb structure to form a carbon plane, and the carbon plane is cylindrically shaped to have a tube shape. Carbon nanotubes have a characteristic of being a conductor or a semiconductor depending on the structure, that is, the diameter of the tube, and can be widely applied in various technical fields, and thus, they are popular as new materials. For example, the carbon nanotubes can be applied to an electrode of an electrochemical storage device such as a secondary cell, a fuel cell or a supercapacity, an electromagnetic wave shielding, a field emission display, or a gas sensor.
The carbon nanostructure can be produced by, for example, an arc discharge method, a laser evaporation method, or a chemical vapor deposition method. Among the above-mentioned manufacturing methods, in the chemical vapor deposition method, carbon nanotubes are produced by dispersing and reacting metal catalyst particles and a hydrocarbon-based raw material gas in a fluidized bed reactor at a high temperature. That is, the metal catalyst reacts with the raw material gas to grow carbon nanotubes while floating in the fluidized bed reactor by the raw material gas.
FIG. 1 schematically shows the construction of a conventional fluidized bed reactor, which can be used, for example, in the production of carbon nanotubes, but is not limited to the manufacture of carbon nanotubes.
Referring to the drawings, a fluidized
A raw material
On the upper portion of the
A
The
2 is a schematic cross-sectional view showing an enlarged dispersion plate installed in a reactor body of the fluidized bed reactor shown in FIG.
Referring to the drawings, a
In order to solve the above problems, it has been proposed to construct a dispersion plate by using a bubble cap or a nozzle. For example, Japanese Laid-Open Patent Publication No. 10-2008-00944218 discloses a dispersion plate configured to supply cooling water to a nozzle by disposing the nozzle on the dispersion plate. However, the dispersion plate disclosed in the above document is not only complicated in construction, but also has a problem that the effect is limited.
Patent Application Publication No. 10-2009-0027377 discloses a device for manufacturing a carbon nanotube having a filter unit. Patent Application Publication No. 10-2010-0108599 discloses a device for manufacturing a carbon nanotube having a filter unit, A manufacturing apparatus has been disclosed, but the above documents have not specifically disclosed the structure of the dispersion plate.
On the other hand, the patent application 10-2009-0036693 discloses a carbon nanotube production apparatus having a dispersion plate having a plurality of dispersion holes and a horn shape, but it is also possible to prevent the dispersion hole itself from being clogged none.
SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide an improved dispersion plate apparatus for a fluidized bed reactor and a fluidized bed reactor having the same.
It is another object of the present invention to provide a dispersion plate apparatus for a fluidized bed reactor capable of preventing powder of a reaction product from being deposited on a dispersion plate and a fluidized bed reactor having the same.
Another object of the present invention is to provide a dispersion plate apparatus for a fluidized bed reactor capable of improving the operation efficiency of a fluidized bed reactor by preventing a hole of the dispersion plate from being clogged by powder and a fluidized bed reactor having the same.
In order to achieve the above object, according to the present invention,
A dispersion plate on which a plurality of holes through which the raw material gas flows are formed; And
And a plurality of gas injecting portions provided corresponding to the plurality of holes, wherein each gas injecting portion has a cap supported by two or more pillars, and a plurality of gas injecting portions, each of which is capable of injecting the raw material gas through an interval between the columns, A dispersion plate apparatus for a fluidized bed reactor, comprising:
According to an aspect of the present invention, the column has the form of a plate curved such that the bottom surface of the column corresponds to the edge of each of the plurality of holes, and the cap has the shape of a cone or a pyramid.
According to another aspect of the present invention, the column includes three columns arranged at regular intervals along the edge of each of the plurality of holes, so that three spacers are formed between the three columns.
According to another aspect of the present invention, the raw material gas flowing through each of the plurality of holes is prevented from flowing in a direction perpendicular to the upper surface of the dispersion plate by the cap, The gas flows parallel to the upper surface of the dispersion plate.
According to another aspect of the present invention,
A reactor body;
A dispersion plate installed inside the reactor body and having a plurality of holes; And
And a plurality of gas injecting portions provided corresponding to the plurality of holes, wherein each gas injecting portion has a cap supported by two or more pillars, and a plurality of gas injecting portions, each of which is capable of injecting the raw material gas through an interval between the columns, A fluidized bed reactor is provided.
According to another aspect of the present invention, the column has a shape of a plate curved such that a bottom surface of the column corresponds to an edge of each of the plurality of holes, and the cap has a conical shape.
According to another aspect of the present invention,
Supplying a catalyst to the fluidized bed reactor;
Supplying a raw material gas containing a carbon source, a reducing gas and an inert gas into the reactor below the dispersion plate in the reactor main body;
Reacting the catalyst and the reaction gas in a reaction space inside the reactor body to produce a carbon nanostructure; And
And recovering the carbon nanostructure produced,
And the raw material gas is injected into the reaction space inside the reactor body through the gas injection part of the dispersion plate.
In the fluidized bed reactor for a fluidized bed reactor according to the present invention and the fluidized bed reactor equipped with the same, the raw material gas flowing into the upper part of the dispersion plate through the holes of the dispersion plate is sprayed in a horizontal direction parallel to the plane of the dispersion plate, It is possible to prevent the phenomenon that the powder is immersed in the upper part of the dispersion plate and the phenomenon that the hole of the dispersion plate is clogged due to the powder can be prevented. The fluidized bed reactor according to the present invention can prevent or delay the failure of the dispersion plate due to the powder, and thus the operation efficiency of the fluidized bed reactor can be improved.
1 is a schematic block diagram of a conventional fluidized bed reactor.
2 is a schematic cross-sectional view showing an enlarged dispersion plate installed in a reactor body of the fluidized bed reactor shown in FIG.
3 is an overall perspective view of a dispersion plate apparatus for a fluidized bed reactor according to the present invention.
FIG. 4 is an exploded perspective view showing an enlarged view of a part of the dispersion plate apparatus for a fluidized bed reactor shown in FIG. 3;
BRIEF DESCRIPTION OF THE DRAWINGS The invention will be described in more detail with reference to the embodiments of the invention shown in the accompanying drawings. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, or alternatives falling within the spirit and scope of the present invention.
In the drawings, like reference numerals are used for similar elements.
It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it is to be understood that other elements may be directly connected or connected, or intervening elements may be present.
The singular expressions include plural expressions unless otherwise specified.
It is to be understood that the terms "comprises", "includes", or "having", etc., as used herein are intended to mean that a feature, a numerical value, a step, an operation, an element, a component, Does not exclude the possibility that other features, numbers, steps, operations, components, parts, or combinations thereof may be present or added.
3 is a perspective view of a dispersion plate apparatus for a fluidized bed reactor provided in a fluidized bed reactor according to the present invention.
Referring to the drawings, a dispersion plate device includes a
4 is a schematic exploded perspective view showing only one of the plurality of gas injecting portions shown in Fig.
Referring to the drawings, a
In the embodiment shown in the figures, each
The
The raw material gas flowing upward from the lower space of the
For example, when the
It is preferable that the bottom diameter of the cone is slightly larger than the diameter of the
The spacing along the circumference of the
In the example shown in the figure, the
In addition to the conical shape, the
The fluidized bed reactor according to the present invention can be used to produce carbon nanostructures. For example, a method for producing a carbon nanostructure according to the present invention includes: supplying a raw material gas containing a carbon source, a reducing gas, and an inert gas to a lower portion of a dispersion plate in a reactor body as described above; Reacting the catalyst and the reaction gas in a reaction space inside the reactor body to produce a carbon nanostructure; And recovering the carbon nanostructure, wherein the raw material gas is injected into the reaction space inside the reactor body through the gas injecting part of the dispersion plate.
Hereinafter, the operation of the fluidized bed reactor according to the present invention will be described briefly.
The overall structure of the fluidized bed reactor according to the present invention is similar to that of the fluidized bed reactor as shown in Figure 1 except that the
The raw material gas supplied from the raw material
According to the present invention, the raw material gas flows into the reaction space through the
On the other hand, the powder falling on the upper vertex of the
10.
12.
31.
41.
Claims (7)
And a plurality of gas injecting portions provided corresponding to the plurality of holes, wherein each gas injecting portion has a cap supported by two or more columns, and the gas injecting portion, which is capable of injecting the raw material gas through an interval between the columns, Wherein the dispersion plate apparatus for a fluidized bed reactor comprises:
The column having the shape of a plate curved such that the bottom surface of the column corresponds to the edge of each of the plurality of holes,
Wherein the cap has the shape of a cone or a pyramid.
Wherein the column includes three columns arranged at regular intervals along the edges of each of the plurality of holes so that three spaced portions are formed between the three columns.
Wherein the raw material gas flowing through each of the plurality of holes is prevented from flowing in a direction perpendicular to the upper surface of the dispersing plate by the cap and the raw material gas injected through the spacing portion passes through the upper surface Wherein the fluidized bed reactor is a fluidized bed reactor.
A dispersion plate installed inside the reactor body and having a plurality of holes; And
And a plurality of gas injecting portions provided corresponding to the plurality of holes, wherein each gas injecting portion has a cap supported by two or more columns, and the gas injecting portion, which is capable of injecting the raw material gas through an interval between the columns, A fluidized bed reactor comprising: a fluidized bed reactor;
The column having the shape of a plate curved such that the bottom surface of the column corresponds to the edge of each of the plurality of holes,
Wherein the cap has the shape of a cone.
Supplying a raw material gas containing a carbon source, a reducing gas and an inert gas into the reactor below the dispersion plate in the reactor main body;
Reacting the catalyst and the reaction gas in a reaction space inside the reactor body to produce a carbon nanostructure; And
And recovering the carbon nanostructure produced,
Wherein the raw material gas is injected into the reaction space inside the reactor body through the gas injection part of the dispersion plate.
Priority Applications (1)
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KR1020140128357A KR20160036305A (en) | 2014-09-25 | 2014-09-25 | Distribution Plate Device For Fluidizing Bed Reactor And Fluidizing Bed Reactor With The Same |
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KR1020140128357A KR20160036305A (en) | 2014-09-25 | 2014-09-25 | Distribution Plate Device For Fluidizing Bed Reactor And Fluidizing Bed Reactor With The Same |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112105452A (en) * | 2019-02-28 | 2020-12-18 | Lg化学株式会社 | Fluidized bed reactor |
WO2021060698A1 (en) * | 2019-09-24 | 2021-04-01 | 주식회사 엘지화학 | Fluidized bed reactor |
-
2014
- 2014-09-25 KR KR1020140128357A patent/KR20160036305A/en not_active Application Discontinuation
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112105452A (en) * | 2019-02-28 | 2020-12-18 | Lg化学株式会社 | Fluidized bed reactor |
US11173463B2 (en) | 2019-02-28 | 2021-11-16 | Lg Chem, Ltd. | Fluidized bed reactor |
CN112105452B (en) * | 2019-02-28 | 2022-12-23 | Lg化学株式会社 | Fluidized bed reactor |
TWI807169B (en) * | 2019-02-28 | 2023-07-01 | 南韓商Lg化學股份有限公司 | Fluidized bed reactor |
WO2021060698A1 (en) * | 2019-09-24 | 2021-04-01 | 주식회사 엘지화학 | Fluidized bed reactor |
US11369934B2 (en) | 2019-09-24 | 2022-06-28 | Lg Chem, Ltd. | Fluidized bed reactor |
EP3824998B1 (en) * | 2019-09-24 | 2024-04-10 | LG Chem, Ltd. | Fluidized bed reactor |
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