CN117205592A - Rectifying device for preparing high-purity carbon dioxide - Google Patents
Rectifying device for preparing high-purity carbon dioxide Download PDFInfo
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- CN117205592A CN117205592A CN202311324641.8A CN202311324641A CN117205592A CN 117205592 A CN117205592 A CN 117205592A CN 202311324641 A CN202311324641 A CN 202311324641A CN 117205592 A CN117205592 A CN 117205592A
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- carbon dioxide
- rectifying
- rectifying tower
- purity carbon
- temperature control
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 103
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 51
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 51
- 238000000926 separation method Methods 0.000 claims abstract description 43
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 27
- 230000023556 desulfurization Effects 0.000 claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- 238000003860 storage Methods 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 2
- 238000010992 reflux Methods 0.000 claims description 2
- 238000009835 boiling Methods 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 239000000463 material Substances 0.000 description 5
- 230000003009 desulfurizing effect Effects 0.000 description 4
- 239000002808 molecular sieve Substances 0.000 description 4
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000004005 microsphere Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- 229910000619 316 stainless steel Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical group O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/32—Other features of fractionating columns ; Constructional details of fractionating columns not provided for in groups B01D3/16 - B01D3/30
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/42—Regulation; Control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/52—Hydrogen sulfide
- B01D53/523—Mixtures of hydrogen sulfide and sulfur oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
- B01D53/82—Solid phase processes with stationary reactants
-
- 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
- C01B32/50—Carbon dioxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The application provides a rectifying device for preparing high-purity carbon dioxide, and belongs to the technical field of carbon dioxide preparation. The rectification device for preparing the high-purity carbon dioxide comprises: the rectifying device includes: rectifying column, desulfurization mechanism, holding vessel, first conveyer pipe and second conveyer pipe. The separation assembly comprises a fixing plate, a supporting plate, a separating plate and a steam pipe, wherein the fixing plate is arranged on the inner surface of the rectifying tower, the supporting plate is arranged on the upper surface of the fixing plate, the separating plate is arranged at the top end of the supporting plate, and the steam pipe is arranged at the bottom of the rectifying tower. The rectification device for preparing the high-purity carbon dioxide can control the rectification temperature and carry out rectification for a plurality of times to obtain the carbon dioxide with higher concentration, and solves the problem of lower purity of the rectified carbon dioxide.
Description
Technical Field
The application belongs to the technical field of carbon dioxide preparation, and particularly relates to a rectifying device for preparing high-purity carbon dioxide.
Background
Carbon dioxide is a kind of carbon oxide, and rectification is a separation process for separating components by utilizing different volatilities of the components in a mixture, and in the process of treating carbon dioxide gas, a rectification device is widely used.
The rectification device used at present comprises a material tank, an evaporator, a rectification tower, a conveying pipe, a heat exchanger and a storage tank, materials are conveyed to the interior of the material tank through a feed inlet, then conveyed to the interior of the evaporator through the conveying pipe, steam is conveyed to the interior of the rectification tower through the conveying pipe by the evaporator, then filtered through the rectification tower, and then conveyed to the interior of the storage tank after being cooled by the conveying pipe through the heat exchanger.
The application discloses a rectification purification device for preparing high-purity carbon dioxide, which comprises a box body, a rectification mechanism and a transmission pipe, wherein the rectification mechanism is arranged on one side of the box body at intervals, one end of the transmission pipe is communicated into the rectification mechanism, the other end of the transmission pipe is communicated into the box body, and the device further comprises an adsorption mechanism which is movably arranged in the box body and is used for adsorbing impurities in carbon dioxide gas.
However, the above rectification apparatus still has some problems: when the existing rectifying device works, carbon dioxide can be rectified only once, and the carbon dioxide cannot be rectified thoroughly by the single rectification, so that the concentration of the rectified carbon dioxide is low, and the purity of the rectified carbon dioxide is low.
Disclosure of Invention
The application provides a rectifying device for preparing high-purity carbon dioxide, which can control the rectifying temperature and carry out rectification for multiple times by arranging a temperature control component and a separation component to obtain carbon dioxide with higher concentration and solve the problem of lower purity of the rectified carbon dioxide.
The application provides a rectifying device for preparing high-purity carbon dioxide, which comprises: the device comprises a rectifying tower, a desulfurization mechanism, a storage tank, a first conveying pipe and a second conveying pipe;
the rectifying tower comprises a temperature control assembly and a separation assembly, wherein the temperature control assembly comprises a temperature controller, a first temperature control plate, a first lead box, a second temperature control plate and a second lead box, the temperature controller is arranged on one side of the outer surface of the rectifying tower, the first temperature control plate is arranged at the bottom of the inner side of the rectifying tower, one end of the first lead box is fixed on one side of the first temperature control plate, the other end of the first lead box is fixed on one side of the temperature controller, the second temperature control plate is arranged at the top of the inner side of the rectifying tower, one end of the second lead box is fixed on one side of the second temperature control plate, and the other end of the second lead box is fixed on the other side of the temperature controller;
the separation assembly comprises a fixing plate, separation members and a steam pipe, wherein the fixing plate is arranged on the inner surface of the rectifying tower, a plurality of layers of separation members which are arranged along the vertical direction are arranged on the upper surface of the fixing plate, each layer of separation members comprises a supporting plate and a separation plate, the separation plates are arranged at the top ends of the supporting plates, and the steam pipe is arranged at the bottom of the rectifying tower.
Optionally, the desulfurization mechanism includes setting up in the inside desulfurization layer, the desulfurization layer divide into the three-layer, and every layer is by a plurality of regular hexagon list room, room mouth towards one side, the honeycomb that back-to-back symmetry arranged and combined.
Optionally, one end of the first conveying pipe is connected with one end of the desulfurization mechanism, and the other end of the first conveying pipe is connected with the top of the rectifying tower; one end of the second conveying pipe is connected with the other end of the desulfurization mechanism, and the other end of the second conveying pipe is connected with the top of the storage tank.
Optionally, a through hole is arranged inside the fixing plate and is used for enabling steam to pass upwards.
Optionally, a separation groove is formed in the separation plate, and the separation groove is a vertical cylindrical groove body and can be used for filling filler.
Optionally, a first supporting seat is further arranged at the bottom of the rectifying tower.
Optionally, a control panel is further arranged on the outer surface of the rectifying tower.
Optionally, a reflux pipe is further arranged at the bottom of the rectifying tower.
Optionally, a second supporting seat is arranged at the bottom of the storage tank; the outer surface of the storage tank is provided with a liquid level display.
Optionally, an output pipe is arranged at the bottom end of the liquid level display.
Due to the adoption of the technical scheme, the beneficial effects of the application comprise at least one of the following contents:
1. according to the rectification device for preparing the high-purity carbon dioxide, provided by the application, the temperature control assembly is arranged to control the stability of the internal temperature of the rectification tower, so that the rectification purity of the carbon dioxide is ensured;
2. according to the rectifying device for preparing the high-purity carbon dioxide, the separation component is arranged, steam is conveyed into the rectifying tower through the steam pipe, the steam moves upwards through the through hole, then the low-boiling substances in the steam are separated through the separation groove in the separation plate, the separated low-boiling substances fall back to the bottom end of the rectifying tower through the separation groove, the low-boiling substances flow back to the heater through the steam pipe and are re-evaporated, and the low-boiling substances are separated for a plurality of times through the separation groove, so that the carbon dioxide with higher concentration is obtained through rectification, and the purity of the rectified carbon dioxide is higher;
3. according to the rectifying device for preparing the high-purity carbon dioxide, the first supporting seat and the second supporting seat are arranged, so that the bottom stability of the rectifying tower and the storage tank is improved;
4. according to the rectifying device for preparing the high-purity carbon dioxide, provided by the application, the desulfurizing mechanism is arranged to desulfurize steam, so that the purity of the carbon dioxide is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a schematic structural diagram of a rectifying device for preparing high-purity carbon dioxide according to an embodiment of the present application;
FIG. 2 is a schematic cross-sectional view of a rectifying apparatus for preparing high purity carbon dioxide according to an embodiment of the present application;
FIG. 3 is a schematic diagram showing the internal structure of a rectifying device for preparing high-purity carbon dioxide according to an embodiment of the present application;
FIG. 4 is an enlarged schematic view of the structure of FIG. 2A;
fig. 5 is an enlarged schematic view of the structure at B in fig. 2.
List of parts and reference numerals:
1-rectifying tower, 2-control panel, 3-first supporting seat, 4-back flow, 5-temperature controller, 6-first wire case, 7-first temperature control board, 8-second wire case, 9-second temperature control board, 10-fixed plate, 11-through-hole, 12-backup pad, 13-separator plate, 14-separating tank, 15-first conveyer pipe, 16-desulfurization mechanism, 17-desulfurization layer, 18-second conveyer pipe, 19-holding vessel, 20-liquid level display, 21-second supporting seat, 22-output tube, 23-steam pipe.
Detailed Description
In order to more clearly illustrate the general inventive concept, a detailed description is given below by way of example with reference to the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited to the specific embodiments disclosed below.
In addition, in the description of the present application, it should be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Example 1, a rectifying apparatus for high purity carbon dioxide production
As shown in fig. 1 to 5, an embodiment of the present application discloses a rectification apparatus for preparing high purity carbon dioxide, comprising: rectifying column 1, desulfurization mechanism 16, holding vessel 19, first conveyer pipe 15 and second conveyer pipe 18.
Specifically, the tower body of the rectifying tower 1 adopts 304 or 316 stainless steel, and has good pressure resistance and corrosion resistance. The inside of the rectifying column 1 is made of surface-treated carbon steel, and can withstand the internal pressure.
The rectifying column 1 comprises a temperature control assembly and a separation assembly, the temperature control assembly comprises a temperature controller 5, a first temperature control plate 7, a first lead box 6, a second temperature control plate 9 and a second lead box 8, the temperature controller 5 is arranged on one side of the outer surface of the rectifying column 1, the first temperature control plate 7 is arranged at the bottom of the inner side of the rectifying column 1, one end of the first lead box 6 is fixed on one side of the first temperature control plate 7, the other end of the first lead box is fixed on one side of the temperature controller 5, the second temperature control plate 9 is arranged at the top of the inner side of the rectifying column 1, one end of the second lead box 8 is fixed on one side of the second temperature control plate 9, and the other end of the second lead box is fixed on the other side of the temperature controller 5.
The separation assembly comprises a fixing plate 10, separation members and steam pipes 23, wherein the fixing plate 10 is arranged on the inner surface of the rectifying tower 1, a plurality of layers of separation members are arranged on the upper surface of the fixing plate 10 along the vertical direction, each layer of separation members comprises a plurality of support plates 12 and separation plates 13, the separation plates 13 are arranged at the top ends of the support plates 12, the support plates 12 in each layer of separation members are equidistantly arranged, the support plates 12 in the separation members of two adjacent layers are arranged in a staggered mode, namely, the positions of each layer of support plates are different from the positions of the previous layer, and the structure can prevent steam from agglomerating, does not block the moving direction of steam and enables steam separation to be more thorough. The steam pipe 23 is provided at the bottom of the rectifying column 1.
Through setting up temperature control subassembly and separation subassembly, can control rectification temperature and many times rectification, obtain the higher carbon dioxide of concentration, solve the lower problem of the carbon dioxide purity of rectification.
In one embodiment, the desulfurization mechanism 16 includes a desulfurization layer 17 provided inside.
Specifically, the desulfurizing layer 17 is used for desulfurizing steam, and has three layers, each layer is a honeycomb structure formed by symmetrically arranging and combining a plurality of regular hexagonal single rooms, the openings of the rooms facing one side and back to back, the desulfurizing layer 17 is made of gamma-alumina or titanium oxide, activated carbon and molecular sieve, wherein the specific surface area of the activated carbon is more than 1000m 2 And/g, the molecular sieve is aluminosilicate molecular sieve, and the activated carbon and the molecular sieve are loaded into gamma-alumina or titanium oxide according to the mass percentage of 10-20%. The desulfurization layer 17 has excellent adsorption performance and selectivity, can adsorb trace amounts of sulfides such as hydrogen sulfide and sulfur dioxide in carbon dioxide, does not adsorb carbon dioxide molecules, and has good desulfurization effect.
As an embodiment, one end of the first conveying pipe 15 is connected with one end of the desulfurization mechanism 16, and the other end is connected with the top of the rectifying tower 1; one end of the second transport pipe 18 is connected to the other end of the desulfurization mechanism 16, and the other end is connected to the top of the storage tank 19.
Specifically, the other end of the first conveying pipe 15 is fixed at the top of the rectifying tower 1, and the desulfurization mechanism 16 is fixed at one end of the first conveying pipe 15, so that the first conveying pipe 15 is used for conveying the steam filtered in the rectifying tower 1 to the desulfurization mechanism 16. One end of the second conveying pipe 18 is connected with the other end of the desulfurization mechanism 16, and the other end of the second conveying pipe is fixed at the top of the storage tank 19 and is used for conveying the desulfurized steam into the storage tank 19.
As an embodiment, the fixing plate 10 is internally provided with a through hole 11.
Specifically, the number of through holes 11 is determined according to the volume of actual distillation, and the through holes 11 serve to move up the steam through.
As an embodiment, the separation plate 13 is provided with a separation groove 14 inside.
Specifically, the separation tank 14 is a vertical cylindrical tank body, so that the packing is conveniently loaded. The separating tank 14 is made of stainless steel, and has pressure resistance and corrosion resistance. The thickness of the separation tank 14 is determined as the case may be, and a sufficient mechanical strength is ensured. The separation tank 14 is filled with carbon-deposited microsphere filler, the microsphere diameter is 3-5mm, and the VOID ratio is 0.5-0.7. The microsphere adopts active carbon material and specific surface area>1000m 2 And/g. The separation tank 14 can fully utilize the adsorption function of the activated carbon filler to separate low-boiling substances in the steam, and the separated low-boiling substances fall back to the bottom of the rectifying tower 1 through the separation tank 14.
As an embodiment, the bottom of the rectifying column 1 is further provided with a first support base 3.
Specifically, the first supporting seat 3 is welded at the bottom of the rectifying tower 1, so as to improve the stability of the rectifying tower 1.
As an embodiment, the outer surface of the rectifying column 1 is further provided with a control panel 2.
Specifically, the control panel 2 may be used to set the temperature inside the rectifying tower 1, and when the temperature inside the rectifying tower 1 deviates from the set temperature, the control panel may also automatically control the first temperature control plate 7 and the second temperature control plate 9, thereby keeping the temperature inside the rectifying tower 1 constant within the set temperature range.
As an embodiment, the bottom of the rectifying column 1 is also provided with a return pipe 4.
Specifically, the return pipe 4 is fixed to the bottom of the rectifying column 1 by a fixing member for the return pipe 4 to convey the steam to the inside of the rectifying column 1.
As an embodiment, the bottom of the storage tank 19 is provided with a second support seat 21. The outer surface of the storage tank 19 is provided with a liquid level display 20.
Specifically, the second support seat 21 is welded to the bottom of the storage tank 19, for improving the stability of the storage tank 19. The liquid level display 20 is used to monitor the storage capacity of the storage tank 19.
As an embodiment, the bottom end of the liquid level display 20 is provided with an output tube 22.
Specifically, the output pipe 22 is fixed inside the bottom end of the storage tank 19 by a fixing member, so that the output pipe 22 discharges the high-purity carbon dioxide inside the storage tank 19.
The operation process of the rectification device comprises the following steps: the first temperature control plate 7 is fixed at the bottom end inside the rectifying tower 1, the second temperature control plate 9 is fixed at the top end inside the rectifying tower 1, then the first temperature control plate 7 is controlled through the first wire box 6 by the temperature controller 5 outside the rectifying tower 1, and the second temperature control plate 9 is controlled through the second wire box 8, so that the first temperature control plate 7 and the second temperature control plate 9 control the inside of the rectifying tower 1 at a stable temperature. Then, the steam is conveyed to the inside of the rectifying tower 1 through the steam pipe 23, the steam moves upwards through the through hole 11, then the low-boiling substances in the steam are separated through the separating tank 14 in the separating plate 13, then the separated low-boiling substances fall back to the bottom end of the rectifying tower 1 through the separating tank 14, flow back to the heater through the steam pipe 23 and re-evaporate, the low-boiling substances are separated for multiple times through the separating tank 14, so that the rectified carbon dioxide with higher concentration is obtained through rectification, the rectified steam is conveyed to the inside of the desulfurization mechanism 16 through the first conveying pipe 15, and after the steam is desulfurized through the desulfurization layer 17, the steam is conveyed to the storage tank 19 through the second conveying pipe 18 for storage.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.
Claims (10)
1. A rectifying device for the preparation of high purity carbon dioxide, the rectifying device comprising: the device comprises a rectifying tower, a desulfurization mechanism, a storage tank, a first conveying pipe and a second conveying pipe;
the rectifying tower comprises a temperature control assembly and a separation assembly, wherein the temperature control assembly comprises a temperature controller, a first temperature control plate, a first lead box, a second temperature control plate and a second lead box, the temperature controller is arranged on one side of the outer surface of the rectifying tower, the first temperature control plate is arranged at the bottom of the inner side of the rectifying tower, one end of the first lead box is fixed on one side of the first temperature control plate, the other end of the first lead box is fixed on one side of the temperature controller, the second temperature control plate is arranged at the top of the inner side of the rectifying tower, one end of the second lead box is fixed on one side of the second temperature control plate, and the other end of the second lead box is fixed on the other side of the temperature controller;
the separation assembly comprises a fixing plate, separation members and a steam pipe, wherein the fixing plate is arranged on the inner surface of the rectifying tower, a plurality of layers of separation members which are arranged along the vertical direction are arranged on the upper surface of the fixing plate, each layer of separation members comprises a supporting plate and a separation plate, the separation plates are arranged at the top ends of the supporting plates, and the steam pipe is arranged at the bottom of the rectifying tower.
2. The rectifying device for preparing high-purity carbon dioxide according to claim 1, wherein the desulfurization mechanism comprises a desulfurization layer arranged inside, the desulfurization layer is divided into three layers, and each layer is a honeycomb structure formed by symmetrically arranging and combining a plurality of regular hexagonal single rooms, the openings of the rooms facing one side and the back to back.
3. The rectifying device for preparing high-purity carbon dioxide according to claim 1, wherein one end of the first conveying pipe is connected with one end of the desulfurization mechanism, and the other end is connected with the top of the rectifying tower; one end of the second conveying pipe is connected with the other end of the desulfurization mechanism, and the other end of the second conveying pipe is connected with the top of the storage tank.
4. The rectifying device for the production of high purity carbon dioxide according to claim 1, wherein the fixing plate is internally provided with a through hole for allowing steam to pass upward.
5. The rectifying device for preparing high-purity carbon dioxide according to claim 1, wherein a separating tank is arranged inside the separating plate, and the separating tank is a vertical cylindrical tank body and can be used for filling filler.
6. The rectifying device for preparing high-purity carbon dioxide according to claim 1, wherein a first supporting seat is further arranged at the bottom of the rectifying tower.
7. The rectifying device for the production of high-purity carbon dioxide according to claim 6, wherein the outer surface of the rectifying tower is further provided with a control panel.
8. The rectifying device for the preparation of high-purity carbon dioxide according to claim 7, wherein a reflux pipe is further arranged at the bottom of the rectifying tower.
9. The rectifying device for preparing high-purity carbon dioxide according to claim 1, wherein a second supporting seat is arranged at the bottom of the storage tank; the outer surface of the storage tank is provided with a liquid level display.
10. The rectifying device for preparing high-purity carbon dioxide according to claim 9, wherein an output pipe is arranged at the bottom end of the liquid level display.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2023111076677 | 2023-08-31 | ||
| CN202311107667.7A CN116832468A (en) | 2023-08-31 | 2023-08-31 | Rectifying device for preparing high-purity carbon dioxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117205592A true CN117205592A (en) | 2023-12-12 |
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ID=88174635
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311107667.7A Pending CN116832468A (en) | 2023-08-31 | 2023-08-31 | Rectifying device for preparing high-purity carbon dioxide |
| CN202311324641.8A Pending CN117205592A (en) | 2023-08-31 | 2023-10-12 | Rectifying device for preparing high-purity carbon dioxide |
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| JP5059063B2 (en) * | 2009-07-14 | 2012-10-24 | 公益財団法人地球環境産業技術研究機構 | Method for removing impurities in carbon dioxide |
| CN102410703B (en) * | 2011-08-12 | 2014-07-16 | 湖南凯美特气体股份有限公司 | Improved method for producing food grade liquid carbon dioxide product and distillation and purification tower |
| CN214243822U (en) * | 2020-11-11 | 2021-09-21 | 大连保税区科利德化工科技开发有限公司 | Rectification purification device for producing high-purity carbon dioxide |
| CN112678825A (en) * | 2020-12-31 | 2021-04-20 | 起时超临界高新技术(广州)有限公司 | Built-in heat exchange type supercritical carbon dioxide separation method and equipment |
| CN219259941U (en) * | 2023-04-23 | 2023-06-27 | 烟台烟宇暖通设备有限公司 | High-efficiency distillation tower |
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