CN202844979U - Efficient silver methanol oxidation reaction tower - Google Patents
Efficient silver methanol oxidation reaction tower Download PDFInfo
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- CN202844979U CN202844979U CN 201220159751 CN201220159751U CN202844979U CN 202844979 U CN202844979 U CN 202844979U CN 201220159751 CN201220159751 CN 201220159751 CN 201220159751 U CN201220159751 U CN 201220159751U CN 202844979 U CN202844979 U CN 202844979U
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Abstract
The utility model discloses an efficient silver methanol oxidation reaction tower. An approach section, an oxidization reaction section, a cooling section and an outlet section are arranged in the internal part of a barrel orderly from top to bottom; a silver catalyst layer is arranged on the oxidation reaction section; a tubular heat exchanger serves as the cooling section; and the silver catalyst layer is arranged in a multi-layer manner. By adopting the efficient silver methanol oxidation reaction tower, the conversion efficiency of methanol can be effectively improved. Thus, the production period of formaldehyde is shortened, and the production cost is reduced.
Description
Technical field
The utility model belongs to the chemical products process units, relates in particular to the formaldehyde production technology that utilizes the waste water energy-saving and emission-reduction.
Background technology
Formaldehyde is the Elementary Chemical Industry raw material, is widely used in the productions such as resin, plastics, leather, paper and fiber, plays an important role in people's productive life.China's formaldehyde industry is started in 1956, updates, improves and development through five more than ten years, has become the first big country of world's Formaldehyde Production and consumption at present.At present the production overwhelming majority of formaldehyde all adopts silver-colored method, mainly through the evaporimeter gasification and under silver-colored catalytic action oxidative dehydrogenation absorb the formalin that obtains about 37% by the absorption tower water-cooled.The oxidation reaction tower needs repeatedly to circulate fully effectively to utilize methyl alcohol in this technique, can extend manufacture cycle like this, improves production cost.
The utility model content
Goal of the invention: in order to overcome the deficiencies in the prior art, the utility model provides a kind of profit efficient silver-colored Division A League Matches of French Football alcohol oxidation reaction tower, thereby can improve methyl alcohol once oxidation efficient, reduces production costs and production cycle.
Technical scheme: for solving the problems of the technologies described above, the utility model is by the following technical solutions: a kind of efficient silver-colored Division A League Matches of French Football alcohol oxidation reaction tower, its inner barrel comprises approach section, oxidation reaction section, cooling section and outlet section from top to bottom successively, described oxidation reaction section is provided with the silver catalyst layer, described cooling section is tubular heat exchanger, and described silver catalyst layer adopts the multilayer setting.
Further improve,, described oxidation reaction section top evenly is provided with the airflow-distribution board that the aperture is 2 ~ 8mm, thereby can so that entering polynary other of the methyl alcohol of oxidation reaction tower fully contacts with catalyst layer, improve the transformation efficiency of methyl alcohol.
As preferably, described silver catalyst is divided into six layers, is respectively from upper each layer particle size range from lower: 40 ~ 60 orders, and 36 ~ 40 orders, 40 ~ 60 orders, 24 ~ 36 orders, 12 ~ 24 orders, 8 ~ 12 orders, thus methanol conversion efficient can be provided.
Beneficial effect: compared with prior art, the utlity model has following advantage: the transformation efficiency of energy Effective Raise methyl alcohol, thus shorten the Formaldehyde Production cycle, reduce production costs.
Description of drawings
Fig. 1 is the utility model structural representation.
Wherein, cylindrical shell 1, approach section 2, oxidation reaction section 3, cooling section 4, import 5, outlet 6,, airflow-distribution board 7.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1, a kind of efficient silver-colored Division A League Matches of French Football alcohol oxidation reaction tower, be provided with successively from top to bottom approach section 2 in its cylindrical shell 1, oxidation reaction section 3, cooling section and outlet section, be provided with six layers of silver catalyst layer in these oxidation reaction section 3 bottoms, from lower be 0 ~ 60 order from upper interlayer particle size range, 36 ~ 40 orders, 40 ~ 60 orders, 24 ~ 36 orders, 12 ~ 24 orders, 8 ~ 12 orders, and also be provided with the sieve plate that an aperture is 5mm on the top of this oxidation reaction section 3, this sieve plate is used for the airflow-distribution board 7 of Uniform Dispersion methyl alcohol gaseous mixture, can shunt through small holes when methanol stream enters into oxidation reaction section 3 by import 5 like this, thereby can fully contact with catalyst layer, improve the transformation efficiency of methyl alcohol, after the mist after the peroxidating was through cooling section 4 cooling, the outlet 6 by the bottom again circulate and is injected into the concentration of approach section 2 oxidation reaction raising formaldehyde again again.
The above only is preferred embodiment of the present utility model; be noted that for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. efficient silver-colored Division A League Matches of French Football alcohol oxidation reaction tower, its inner barrel comprises approach section, oxidation reaction section, cooling section and outlet section from top to bottom successively, it is characterized in that: described oxidation reaction section is provided with the silver catalyst layer, described cooling section is tubular heat exchanger, and described silver catalyst layer adopts the multilayer setting.
2. described efficient silver-colored Division A League Matches of French Football alcohol oxidation reaction tower according to claim 1, it is characterized in that: described oxidation reaction section top evenly is provided with the airflow-distribution board that the aperture is 2 ~ 8mm.
3. described efficient silver-colored Division A League Matches of French Football alcohol oxidation reaction tower according to claim 1, it is characterized in that: described silver catalyst is divided into six layers, is respectively from upper each layer particle size range from lower: 40 ~ 60 orders, 36 ~ 40 orders, 40 ~ 60 orders, 24 ~ 36 orders, 12 ~ 24 orders, 8 ~ 12 orders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220159751 CN202844979U (en) | 2012-04-16 | 2012-04-16 | Efficient silver methanol oxidation reaction tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220159751 CN202844979U (en) | 2012-04-16 | 2012-04-16 | Efficient silver methanol oxidation reaction tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202844979U true CN202844979U (en) | 2013-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 201220159751 Expired - Fee Related CN202844979U (en) | 2012-04-16 | 2012-04-16 | Efficient silver methanol oxidation reaction tower |
Country Status (1)
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| CN (1) | CN202844979U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112604683A (en) * | 2020-12-25 | 2021-04-06 | 国家能源集团宁夏煤业有限责任公司 | Silver catalyst bed and application thereof, and method for preparing aldehyde by alcohol oxidation |
| CN112707803A (en) * | 2020-12-25 | 2021-04-27 | 国家能源集团宁夏煤业有限责任公司 | Method and system for preparing aldehyde by alcohol oxidation |
-
2012
- 2012-04-16 CN CN 201220159751 patent/CN202844979U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112604683A (en) * | 2020-12-25 | 2021-04-06 | 国家能源集团宁夏煤业有限责任公司 | Silver catalyst bed and application thereof, and method for preparing aldehyde by alcohol oxidation |
| CN112707803A (en) * | 2020-12-25 | 2021-04-27 | 国家能源集团宁夏煤业有限责任公司 | Method and system for preparing aldehyde by alcohol oxidation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20180416 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |