CN216824878U - A packed tower that is used for methyl alcohol and dimethyl carbonate azeotropic material extraction to separate - Google Patents
A packed tower that is used for methyl alcohol and dimethyl carbonate azeotropic material extraction to separate Download PDFInfo
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- CN216824878U CN216824878U CN202220466051.3U CN202220466051U CN216824878U CN 216824878 U CN216824878 U CN 216824878U CN 202220466051 U CN202220466051 U CN 202220466051U CN 216824878 U CN216824878 U CN 216824878U
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- dimethyl carbonate
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- methanol
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Abstract
The utility model discloses a packed tower for extracting and separating azeotropic materials of methanol and dimethyl carbonate, which comprises a packed tower body, wherein the packed tower body is provided with an extracting agent feed port and an extracting and separating material feed port; and the multiple silicon carbide filler layers are arranged inside the filler tower body, and at least one silicon carbide filler layer is arranged between the extracting agent feed port and the extraction separation material feed port and is used for contacting the extracting agent with the azeotropic materials of methanol and dimethyl carbonate. The utility model discloses, through this internal dimethyl oxalate that adds of extractant feed inlet to the packed tower, add methyl alcohol and dimethyl carbonate azeotropic material through extraction separation material feed inlet simultaneously, the dimethyl oxalate of liquid and gaseous dimethyl carbonate, the methyl alcohol material fully contacts in the special filler of carborundum, has broken methyl alcohol and dimethyl carbonate binary system vapour-liquid balance, realizes azeotropic material methyl alcohol and dimethyl carbonate extraction separation.
Description
Technical Field
The utility model relates to a chemical industry field especially relates to a packed tower that is used for methyl alcohol and dimethyl carbonate azeotropic material extraction separation.
Background
The packed tower is also called as packed tower, and is one kind of common mass transfer equipment for chemical production, which consists of mainly cylindrical tower body, packed material, etc. for absorption, distillation, extraction, etc.
When the existing packed tower body is used for extracting a methanol and dimethyl carbonate azeotropic material, the vapor-liquid balance of a binary system of methanol and dimethyl carbonate cannot be effectively broken, so that the methanol and dimethyl carbonate azeotropic material cannot be effectively extracted, and the use is inconvenient.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a packed tower that is used for methanol and dimethyl carbonate azeotropic material extraction separation to the realization breaks methanol and dimethyl carbonate binary system vapour-liquid balance, separates azeotropic material methanol and dimethyl carbonate.
In order to solve the technical problem, the utility model provides a packed tower for extracting and separating azeotropic materials of methanol and dimethyl carbonate, which comprises a packed tower body, wherein the packed tower body is provided with an extracting agent feeding port and an extracting and separating material feeding port;
and the multiple silicon carbide filler layers are arranged inside the filler tower body, and at least one silicon carbide filler layer is arranged between the extracting agent feed port and the extraction separation material feed port and is used for contacting the extracting agent with the azeotropic materials of methanol and dimethyl carbonate.
Furthermore, a net rack is fixed inside the packed tower body, and the silicon carbide filler layer is arranged on the net rack.
Furthermore, the silicon carbide packing layer comprises a multilayer structure, each layer is formed by combining 1000-20000 silicon carbide corrugated plates, 5000-20000 small holes are formed in each silicon carbide corrugated plate, and the opening angle of each hole is 30-45 degrees.
Further, the inner diameter of the small hole is 0.3-2 mm.
Further, the top of the packed tower body is provided with an air outlet, and the bottom of the packed tower body is provided with a liquid outlet.
Furthermore, the inside that the packed tower body is close to the bottom is the infundibulate, and the inboard bottom of packed tower body sets up downwards towards the slope of liquid outlet direction.
Compared with the prior art, the utility model discloses following beneficial effect has at least:
1. the utility model discloses, through this internal dimethyl oxalate that adds of extractant feed inlet to the packed tower, add methyl alcohol and dimethyl carbonate azeotropic material through extraction separation material feed inlet simultaneously, the dimethyl oxalate of liquid and gaseous dimethyl carbonate, the methyl alcohol material fully contacts in the special filler of carborundum, has broken methyl alcohol and dimethyl carbonate binary system vapour-liquid balance, realizes azeotropic material methyl alcohol and dimethyl carbonate extraction separation.
2. The utility model discloses, when extracting the separation through dimethyl oxalate to gaseous dimethyl carbonate and methyl alcohol, the aperture through the carborundum packing layer can make dimethyl oxalate and dimethyl carbonate, methyl alcohol carry out abundant contact, can effectively separate azeotropic material methyl alcohol and dimethyl carbonate, guarantees that dimethyl carbonate product quality reaches 99.999%, reduction in production cost, improvement product quality.
3. The utility model discloses, when gas passes through gas outlet exhaust, liquid falls to the inboard bottom of packed tower body, and liquid flows towards the liquid outlet direction through the packed tower body bottom of infundibulate, is convenient for discharge this internal liquid of packed tower smoothly.
Drawings
FIG. 1 is a schematic cross-sectional view of an embodiment of the present invention;
FIG. 2 is a schematic perspective view of a silicon carbide packing layer according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of an embodiment of the present invention.
Detailed Description
The packed tower for the extractive separation of azeotropic materials of methanol and dimethyl carbonate of the present invention will now be described in more detail with reference to the schematic drawings, in which preferred embodiments of the present invention are shown, it being understood that those skilled in the art may modify the invention herein described while still achieving the advantageous effects of the present invention. Accordingly, the following description should be construed as broadly as possible to those skilled in the art and not as limiting the invention.
The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
As shown in fig. 1 to fig. 3, the embodiment of the present invention provides a packed tower for extracting and separating azeotropic materials of methanol and dimethyl carbonate, comprising a packed tower body 1, a silicon carbide packing layer, an extracting agent feed port 6 and an extracting and separating material feed port 7;
the packed tower body 1 is used for extracting and separating azeotropic materials of methanol and dimethyl carbonate;
and the silicon carbide filler layer is arranged inside the packed tower body 1 and is used for fully contacting the extracting agent with the azeotropic materials of the methanol and the dimethyl carbonate. For example, the silicon carbide filler layers can be arranged equidistantly, or the spacing between the adjacent silicon carbide filler layers can be adjusted according to actual needs;
in one embodiment, the silicon carbide filler layer is divided into a first silicon carbide filler layer 2, a second silicon carbide filler layer 4 and a third silicon carbide filler layer 5 from top to bottom in sequence; it is understood that other numbers of layers are possible, and those skilled in the art can adjust the number according to actual needs.
The extracting agent feeding port 6 is formed in one side, close to the upper side, of the packed tower body 1 and is used for adding an extracting agent;
in one embodiment, the extractant feed 6 opens between the first layer of silicon carbide filler layer 2 and the second layer of silicon carbide filler layer 4;
the extraction separation material feed inlet 7 is arranged on one side of the packed tower body 1 close to the lower part and used for adding azeotropic materials of methanol and dimethyl carbonate.
In one embodiment, the extract separation material feed inlet 7 opens between the second layer of silicon carbide filler layer 4 and the third layer of silicon carbide filler layer 5.
Dimethyl oxalate is added into the packed tower body 1 through the extractant feed port 6, meanwhile, an azeotropic material of methanol and dimethyl carbonate is added through the extraction separation material feed port 7, liquid dimethyl oxalate and gas dimethyl carbonate and methanol materials are fully contacted in the special silicon carbide packing, the vapor-liquid balance of a binary system of methanol and dimethyl carbonate is broken, and the extraction separation of the azeotropic material methanol and dimethyl carbonate is realized.
And a net rack 2 is fixed in the packed tower body 1, and the net rack 2 is used for installing a silicon carbide packing layer. For example, the racks 2 may be installed at equal intervals, or the intervals between the racks may be adjusted according to actual needs.
The utility model discloses in, silicon carbide packing layer includes multilayer structure, and for example every layer is formed by 1000 supple with food 3000 silicon carbide buckled plates combinations, for example, can be 1500 pieces, 2000 pieces, 2500 pieces etc. or, according to the actual production needs, also can be less than 1000 pieces, perhaps unnecessary 3000 pieces, and has 5000 supple with food 20000 apertures on every silicon carbide buckled plate, and the angle of every hole trompil is at 30 degrees to 45 degrees.
Furthermore, the inner diameter of the small hole of the silicon carbide corrugated plate is 0.3-2 mm.
In one embodiment, when dimethyl carbonate and methanol in gas are extracted and separated through dimethyl oxalate, the dimethyl oxalate can be fully contacted with the dimethyl carbonate and the methanol through the small holes of the silicon carbide filler layer, azeotropic materials of the methanol and the dimethyl carbonate can be effectively separated, the quality of a dimethyl carbonate product is ensured to reach 99.999%, the production cost is reduced, and the product quality is improved.
For example, the extractant used in the packed column body 1 is dimethyl oxalate.
In addition, the top of the packed tower body 1 is provided with an air outlet 8, and the bottom of the packed tower body 1 is provided with a liquid outlet 9.
The inside that packed tower body 1 is close to the bottom is the infundibulate, and the inboard bottom of packed tower body 1 sets up downwards towards the slope of liquid outlet 9 direction. From this, when gas passes through gas outlet 8 and discharges, liquid falls to the inboard bottom of packed tower body 1, and liquid flows towards liquid outlet 9 direction through the bottom of funnel-shaped packed tower body 1, is convenient for discharge the liquid in the packed tower body 1 smoothly.
In summary, the extraction separation material feed port 7 is formed at one side of the packed tower body 1 close to the lower side, and the extraction separation material feed port 7 is formed between the second layer silicon carbide packing layer 4 and the third layer silicon carbide packing layer 5 for adding azeotropic materials of methanol and dimethyl carbonate, and the dimethyl oxalate can be fully contacted with the dimethyl carbonate and the methanol through the small holes of the silicon carbide packing layer, so that the azeotropic materials of methanol and dimethyl carbonate can be effectively separated, the quality of the dimethyl carbonate product is ensured to reach 99.999%, the production cost is reduced, the product quality is improved, when gas is discharged through the gas outlet 8, liquid falls to the bottom of the inner side of the packed tower body 1, and the liquid flows towards the liquid outlet 9 through the bottom of the funnel-shaped packed tower body 1, so that the liquid in the packed tower body 1 can be smoothly discharged.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (6)
1. A packed tower for extracting and separating methanol and dimethyl carbonate azeotropic materials is characterized in that: the device comprises a packed tower body, wherein an extracting agent feeding port and an extraction separation material feeding port are formed in the packed tower body;
and the multiple silicon carbide filler layers are arranged inside the filler tower body, and at least one silicon carbide filler layer is arranged between the extracting agent feed port and the extraction separation material feed port and is used for contacting the extracting agent with the azeotropic materials of methanol and dimethyl carbonate.
2. The packed column for azeotropic separation of methanol and dimethyl carbonate according to claim 1, wherein: the inside of packed tower body is fixed with the rack, the carborundum packing layer set up in on the rack.
3. The packed column for azeotropic separation of methanol and dimethyl carbonate according to claim 1, wherein: the silicon carbide packing layer comprises a multilayer structure, each layer is formed by combining 1000-20000 silicon carbide corrugated plates, 5000-20000 small holes are formed in each silicon carbide corrugated plate, and the opening angle of each hole is 30-45 degrees.
4. The packed column for azeotropic separation of methanol and dimethyl carbonate according to claim 3, wherein: the inner diameter of the small hole is 0.3-2 mm.
5. The packed column for azeotropic separation of methanol and dimethyl carbonate according to claim 1, wherein: the top of the packed tower body is provided with an air outlet, and the bottom of the packed tower body is provided with a liquid outlet.
6. The packed column for azeotropic separation of methanol and dimethyl carbonate according to claim 5, wherein: the inside that the packed tower body is close to the bottom is the infundibulate, and the inboard bottom of packed tower body sets up downwards towards the slope of liquid outlet direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220466051.3U CN216824878U (en) | 2022-03-04 | 2022-03-04 | A packed tower that is used for methyl alcohol and dimethyl carbonate azeotropic material extraction to separate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220466051.3U CN216824878U (en) | 2022-03-04 | 2022-03-04 | A packed tower that is used for methyl alcohol and dimethyl carbonate azeotropic material extraction to separate |
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| CN216824878U true CN216824878U (en) | 2022-06-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115385706A (en) * | 2022-08-23 | 2022-11-25 | 广西三元华鑫特种陶瓷有限公司 | Method for improving impact toughness of micro-nano fiber reinforced silicon carbide material |
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2022
- 2022-03-04 CN CN202220466051.3U patent/CN216824878U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115385706A (en) * | 2022-08-23 | 2022-11-25 | 广西三元华鑫特种陶瓷有限公司 | Method for improving impact toughness of micro-nano fiber reinforced silicon carbide material |
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