CN201180119Y - Adsorption plant for removing peroxide in vinyl cyanide product - Google Patents
Adsorption plant for removing peroxide in vinyl cyanide product Download PDFInfo
- Publication number
- CN201180119Y CN201180119Y CNU2008200553226U CN200820055322U CN201180119Y CN 201180119 Y CN201180119 Y CN 201180119Y CN U2008200553226 U CNU2008200553226 U CN U2008200553226U CN 200820055322 U CN200820055322 U CN 200820055322U CN 201180119 Y CN201180119 Y CN 201180119Y
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- porcelain ball
- vinyl cyanide
- layer
- adsorbent layer
- activated alumina
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Abstract
The utility model relates to an adsorption plant used for removing hyperoxide in an acrylonitrile product. A housing of the absorption plant is provided with an acrylonitrile inlet and an acrylonitrile outlet, one or more absorption units is arranged inside the housing between the acrylonitrile inlet and the acrylonitrile outlet, and the absorption unit comprises a first ceramic ball sorbent layer, a second ceramic sorbent layer, an active alumina sorbent layer and a third ceramic ball sorbent layer from the acrylonitrile inlet to the acrylonitrile outlet in sequence.
Description
Technical field
The utility model relates to a kind of adsorption unit, relates more specifically to a kind of adsorption unit that is used for removing vinyl cyanide product superoxide.
Background technology
The fluctuation of vinyl cyanide superoxide is too big rule not, the main flow viewpoint of industry thinks that superoxide forms in reaction process, itself is also unstable, is subject to the influence of factors such as the pH value of system and operation conditions, and passing in time has certain decay.Can't remove in technological process, this quality product to the downstream production equipment has certain influence.
At present domestic do not have special measure can reduce superoxide in the vinyl cyanide product, mentioned on the document at home and abroad with the activated alumina adsorption method and can reduce superoxide in the vinyl cyanide product, but these methods are difficult to be applied on the traditional production device; Specific as follows:
In the invention document US H1686 that the U.S. registers in accordance with the law, disclosed a kind of method that is used for removing vinyl cyanide product superoxide, be to contact the sufficiently long time with activated alumina adsorbents by vinyl cyanide.But the weak point of this method is that the long-term adsorption effect of single activated alumina adsorbents layer is not good.
Among the Chinese patent CN200620108698.x, relate to a kind of Four-level adsorber column that is applicable to waste heat regeneration absorption type drying machine, comprise tower body and fill in active oxidation aluminium lamination in the tower body that to be molecular sieve layer, the 3rd layer be the big grain ball layer that can absorb water for active oxidation aluminium lamination, the 4th layer to the first layer for spheroid layer, the second layer for big grain can absorb water from top to bottom.The weak point of this patent is that the technical problem of its solution is to carry out adsorption dry, and can't reach the effect that removes superoxide in the vinyl cyanide product.
In sum, this area lacks a kind of superoxide that can effectively reduce in the vinyl cyanide product, improves the device of the vinyl cyanide quality product in downstream.
The utility model content
A purpose of the present utility model is to obtain a kind of superoxide that can effectively reduce in the vinyl cyanide product, improves the adsorption unit of the vinyl cyanide quality product in downstream.
Another purpose of the present utility model is to obtain a kind of superoxide that can effectively reduce in the vinyl cyanide product, improves the production device for acrylic nitrile of the vinyl cyanide quality product in downstream.
First aspect of the present utility model provides a kind of adsorption unit that is used for removing vinyl cyanide product superoxide, has vinyl cyanide import, vinyl cyanide outlet on the housing of described adsorption unit,
Position in housing, between the outlet of described vinyl cyanide import and vinyl cyanide is provided with one or more absorbing units, and described absorbing unit comprises following adsorbent layer in regular turn from vinyl cyanide import to vinyl cyanide Way out: the first porcelain ball adsorbent layer, the second porcelain ball adsorbent layer, activated alumina adsorbents layer and the 3rd porcelain ball adsorbent layer.
In an embodiment of the present utility model, the height ratio of described each adsorbent layer is: the height ratio of the first porcelain ball adsorbent layer, the second porcelain ball adsorbent layer, activated alumina adsorbents layer and the 3rd porcelain ball adsorbent layer is 2: (0.5～1.5): (30～40): (0.5～1.5).
In an embodiment of the present utility model, between the bottom of absorbing unit and vinyl cyanide import, first stationary grizzly is set, between the top of absorbing unit and vinyl cyanide outlet, second stationary grizzly is set, is provided with between described second porcelain ball adsorbent layer and the activated alumina adsorbents layer between first wire netting, described activated alumina adsorbents layer and described the 3rd porcelain ball adsorbent layer second wire netting is set.
In an embodiment of the present utility model, between the top of described second stationary grizzly and described the 3rd porcelain ball adsorbent layer void layer is set.
In an embodiment of the present utility model, the height of described void layer and the first porcelain ball adsorbent layer ratio are (1～1.6): 2.
In an embodiment of the present utility model, the diameter of the porcelain ball sorbent material in the described first porcelain ball adsorbent layer is 12 ± 1mm.
In an embodiment of the present utility model, the diameter of the porcelain ball sorbent material in the described second porcelain ball adsorbent layer is 6 ± 1mm.
In an embodiment of the present utility model, the diameter of the activated alumina adsorbents in the described activated alumina adsorbents layer is 4～6mm.
In an embodiment of the present utility model, the diameter of the porcelain ball sorbent material in described the 3rd porcelain ball adsorbent layer is 6 ± 1mm.
Of the present utility modelly provide a kind of production device for acrylic nitrile on the other hand, it contains one or more adsorption units that are used for removing vinyl cyanide product superoxide described in the utility model.
The beneficial effects of the utility model are:
(1) the various sorbent materials of the inner filling of superoxide adsorption unit of the present utility model, the excessive superoxide in can effective elimination vinyl cyanide product makes the qualification rate of product promote greatly, other index is uninfluenced substantially in the product.
(2) use of the utility model device has remedied the deficiency in the art production process, has filled up the blank that addresses this problem, for production equipment of the same type provides a kind of method that removes superoxide in the vinyl cyanide product.
Description of drawings
Fig. 1 is the synoptic diagram of an embodiment of the utility model adsorption unit.
Embodiment
The utility model has obtained effectively to reduce the superoxide in the vinyl cyanide product by improving the structure of adsorption unit, improves the modifying device of the vinyl cyanide quality product in downstream.
Below all respects of the present utility model are described in detail.
Adsorption unit of the present utility model is used for removing vinyl cyanide product superoxide.
The housing 2 of adsorption unit of the present utility model can adopt housing traditional in this area, for example adopts housing structure particularly.
Has vinyl cyanide import A and vinyl cyanide outlet B on the housing 2.The installation site of described vinyl cyanide import A and vinyl cyanide outlet B is provided with according to this area traditional location.Particularly, described vinyl cyanide import A is arranged on the bottom (for example center, bottom or bottom one side) of housing 2, and described vinyl cyanide outlet A is arranged on the top (for example in center, top or top one side) of housing 2.
Absorbing unit 1 of the present utility model is filled with each adsorbent layer in regular turn.Adopt filler to absorb fluidized-bed structure particularly.More specifically, the structure of absorbing unit 1 is as follows: the position in housing 2, between described vinyl cyanide import A and the vinyl cyanide outlet B is provided with one or more absorbing units 1, and described absorbing unit 1 exports the B direction and comprises following adsorbent layer in regular turn from vinyl cyanide import A to vinyl cyanide: the first porcelain ball adsorbent layer 11, the second porcelain ball adsorbent layer 12, activated alumina adsorbents layer 13 and the 3rd porcelain ball adsorbent layer 14.
When more than one of the number of the absorbing unit 1 that is provided with, can be that a plurality of absorbing units carry out parallel connection, serial or parallel connection+placed in-line structure is operated.Setting in parallel and placed in-line is carried out according to the traditional structure setting in this area.
The height ratio of described each adsorbent layer is preferably: the height ratio of the first porcelain ball adsorbent layer 11, the second porcelain ball adsorbent layer 12, activated alumina adsorbents layer 13 and the 3rd porcelain ball adsorbent layer 14 is 2: (0.5～1.5): (30～40): (0.5～1.5).
In order to prevent mixing of porcelain ball sorbent material and activated alumina adsorbents, the efflorescence that filter activity oxygenant sorbent material is possible, guarantee the qualified of product, preferably, between the bottom of absorbing unit 1 and vinyl cyanide import A, first stationary grizzly 15 is set, between the top of absorbing unit 1 and vinyl cyanide outlet B, second stationary grizzly 16 is set; In order to prevent migration of adsorbent, be provided with between described second porcelain ball adsorbent layer 12 and the activated alumina adsorbents layer 13 between first wire netting 17, described activated alumina adsorbents layer 13 and described the 3rd porcelain ball adsorbent layer 14 second wire netting 18 is set.
In order to guarantee the expansion of activated alumina adsorbents when working, preferably, between the top of described second stationary grizzly 16 and described the 3rd porcelain ball adsorbent layer 14, void layer 19 is set.
Particularly, the height of described void layer 19 and the first porcelain ball adsorbent layer, 11 ratios are 1～1.6: 2.The pore texture of this ratio can guarantee activated alumina adsorbents springing up in use, increases adsorption effect, can play a role better.
In order more effectively to remove superoxide, the diameter of the porcelain ball sorbent material in the described first porcelain ball adsorbent layer 11 is 12mm.
In order more effectively to remove superoxide, the diameter of the porcelain ball sorbent material in the described second porcelain ball adsorbent layer 12 is 6mm.
In order more effectively to remove superoxide, the diameter of the activated alumina adsorbents in the described activated alumina adsorbents layer 13 is 4～6mm.
In order more effectively to remove superoxide, the diameter of the porcelain ball sorbent material in described the 3rd porcelain ball adsorbent layer 14 is 6mm.
The adsorption unit that is used for removing vinyl cyanide product superoxide of the present utility model can carry out coupling and obtain qualified vinyl cyanide product with the traditional device in other this area.
Other aspects of the present utility model are because the disclosure of this paper is conspicuous to those skilled in the art.
Below in conjunction with specific embodiment, further illustrate the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction scope of the present utility model.The experimental technique of unreceipted actual conditions in the following example, usually according to normal condition, or the condition of advising according to manufacturer.Ratio and per-cent are based on weight, unless stated otherwise.
Unless otherwise defined or explanation, same meanings of being familiar with of all specialties used herein and scientific words and those skilled in the art.Any in addition method similar or impartial to described content and material all can be applicable in the utility model method.
Embodiment
Show a kind of adsorption unit that is used for removing vinyl cyanide product superoxide as Fig. 1, diameter is 1.1 meters, 3.5 meters of height, and the virtual height of filling activated alumina is 2.2 meters, about 1.5 tons.Adopt activated alumina, spherical particle, the about 4-6mm of diameter, the about 0.72g/cm of tap density
3, specific surface area 383m
2/ g.
Concrete filling form is as follows:
Have vinyl cyanide import A, vinyl cyanide outlet B on the housing 2 of described adsorption unit, position in housing 2, between described vinyl cyanide import A and the vinyl cyanide outlet B is provided with an absorbing unit 1, and described absorbing unit 1 exports the B direction and comprises following adsorbent layer in regular turn from vinyl cyanide import A to vinyl cyanide: the first porcelain ball adsorbent layer 11, the second porcelain ball adsorbent layer 12, activated alumina adsorbents layer 13 and the 3rd porcelain ball adsorbent layer 14.
The height ratio of described each adsorbent layer is: the height of the first porcelain ball adsorbent layer 11, the second porcelain ball adsorbent layer 12, activated alumina adsorbents layer 13 and the 3rd porcelain ball adsorbent layer 14 is respectively 120mm, 60mm, 2200mm, 60mm.
In order more effectively to remove superoxide, the diameter of the porcelain ball sorbent material in the described first porcelain ball adsorbent layer 11 is 12mm.
In order more effectively to remove superoxide, the diameter of the porcelain ball sorbent material in the described second porcelain ball adsorbent layer 12 is 6mm.
In order more effectively to remove superoxide, the diameter of the activated alumina adsorbents in the described activated alumina adsorbents layer 13 is 4～6mm.
In order more effectively to remove superoxide, the diameter of the porcelain ball sorbent material in described the 3rd porcelain ball adsorbent layer 14 is 6mm.
The diameter of described second porcelain ball sorbent material 12 and the 3rd porcelain ball sorbent material 14 can be the same or different.
In order to prevent mixing of porcelain ball sorbent material and activated alumina adsorbents, the efflorescence that filter activity oxygenant sorbent material is possible, guarantee the qualified of product, between the bottom of absorbing unit 1 and vinyl cyanide import A, first stationary grizzly 15 is set, between the top of absorbing unit 1 and vinyl cyanide outlet B, second stationary grizzly 16 is set, in order to prevent migration of adsorbent, between described second porcelain ball adsorbent layer 12 and the activated alumina adsorbents layer 13 first wire netting 17 is set, between described activated alumina adsorbents layer 13 and described the 3rd porcelain ball adsorbent layer 14 second wire netting 18 is set.
In order to guarantee the expansion of activated alumina adsorbents when working, between the top of described second stationary grizzly 16 and described the 3rd porcelain ball adsorbent layer 14 void layer 19 is set.The height of described void layer 19 is 60～100mm.
Described adsorption unit has also been installed various this areas common structure, and wherein interface C is the general facilities interface, and interface D is the steaming out mouth, interface G--safety vent mouth, and interface P1, P2--pressure survey mouth, interface T--temperature survey mouth, interface M1, M2 are manhole.
This adsorption unit is running like this: drawing one normal discharge on the reflux pipeline of discharge pump (not shown) is 30M
3/ H, peak flow is 60M
3The vinyl cyanide finished product of/H, its service temperature are normal temperature, and working pressure is 0.45MPaG, after Flux Valve Control, (enter vinyl cyanide outlet B from described vinyl cyanide import A) from bottom to top and enter absorbing unit 1 (adsorption bed form) bottom.The about 2.2M of adsorption bed activated alumina piling height with the superoxide in the adsorbs propylene nitrile, after absorption is finished, enters strainer by the discharging of adsorption bed side line and further filters, after airtight sampling analysis, sends into vinyl cyanide finished product tundish after qualified.
The technique effect of this device obtains like this: this device relates to stationary grate, wire netting etc. is set in contactor, adopt the MULTILAYER COMPOSITE filler, i.e. the form of porcelain ball A (the first porcelain ball)+porcelain ball B (the second porcelain ball)+activated alumina adsorbents+porcelain ball B (the 3rd porcelain ball); Inner satellite structure as the filling adsorption bed prevents the migration of sorbent material, and quality product is brought influence, reserves gap structure (guarantee activated alumina adsorbents springing up in use, increase adsorption effect, thereby play a role) simultaneously.
All quote in this application as a reference at all documents that the utility model is mentioned, just quoted as a reference separately as each piece document.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after having read above-mentioned teachings of the present utility model, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Claims (10)
1, a kind of adsorption unit that is used for removing vinyl cyanide product superoxide has vinyl cyanide import (A), vinyl cyanide outlet (B) on the housing of described adsorption unit (2), it is characterized in that:
Position in housing (2), between described vinyl cyanide import (A) and the vinyl cyanide outlet (B) is provided with one or more absorbing units (1), and described absorbing unit (1) exports (B) direction and comprises following adsorbent layer in regular turn from vinyl cyanide import (A) to vinyl cyanide: the first porcelain ball adsorbent layer (11), the second porcelain ball adsorbent layer (12), activated alumina adsorbents layer (13) and the 3rd porcelain ball adsorbent layer (14).
2, device as claimed in claim 1, it is characterized in that the height ratio of described each adsorbent layer is: the height ratio of the first porcelain ball adsorbent layer (11), the second porcelain ball adsorbent layer (12), activated alumina adsorbents layer (13) and the 3rd porcelain ball adsorbent layer (14) is 2: (0.5～1.5): (30～40): (0.5～1.5).
3, device as claimed in claim 1, it is characterized in that, between the bottom of absorbing unit (1) and vinyl cyanide import (A), first stationary grizzly (15) is set, between the top of absorbing unit (1) and vinyl cyanide outlet (B), second stationary grizzly (16) is set, is provided with between described second porcelain ball adsorbent layer (12) and the activated alumina adsorbents layer (13) between first wire netting (17), described activated alumina adsorbents layer (13) and described the 3rd porcelain ball adsorbent layer (14) second wire netting (18) is set.
4, device as claimed in claim 3 is characterized in that, between the top of described second stationary grizzly (16) and described the 3rd porcelain ball adsorbent layer (14) void layer (19) is set.
5, device as claimed in claim 4 is characterized in that, the height of described void layer (19) and first porcelain ball adsorbent layer (11) ratio are (1～1.6): 2.
6, device as claimed in claim 1 is characterized in that, the diameter of the porcelain ball sorbent material in the described first porcelain ball adsorbent layer (11) is 12 ± 1mm.
7, device as claimed in claim 1 is characterized in that, the diameter of the porcelain ball sorbent material in the described second porcelain ball adsorbent layer (12) is 6 ± 1mm.
8, device as claimed in claim 1 is characterized in that, the diameter of the activated alumina adsorbents in the described activated alumina adsorbents layer (13) is 4～6mm.
9, device as claimed in claim 1 is characterized in that, the diameter of the porcelain ball sorbent material in described the 3rd porcelain ball adsorbent layer (14) is 6 ± 1mm.
10, a kind of production device for acrylic nitrile is characterized in that, it contains one or more as each described adsorption unit that is used for removing vinyl cyanide product superoxide of claim 1～9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200553226U CN201180119Y (en) | 2008-02-01 | 2008-02-01 | Adsorption plant for removing peroxide in vinyl cyanide product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200553226U CN201180119Y (en) | 2008-02-01 | 2008-02-01 | Adsorption plant for removing peroxide in vinyl cyanide product |
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| Publication Number | Publication Date |
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| CN201180119Y true CN201180119Y (en) | 2009-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200553226U Expired - Lifetime CN201180119Y (en) | 2008-02-01 | 2008-02-01 | Adsorption plant for removing peroxide in vinyl cyanide product |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101992000A (en) * | 2009-08-25 | 2011-03-30 | 付华峰 | Novel tannin cured chitosan heavy metal ion dynamic absorption device and preparation method thereof |
| CN102199106A (en) * | 2010-03-26 | 2011-09-28 | 中国石油化工股份有限公司 | Method for removing peroxide in acrylonitrile |
| CN103360280A (en) * | 2013-07-19 | 2013-10-23 | 中国海洋石油总公司 | Adsorption purification method for high-purity butanedinitrile |
| CN103446801A (en) * | 2013-08-26 | 2013-12-18 | 中国石油集团东北炼化工程有限公司吉林设计院 | Adsorption device for removing peroxides from acrylonitrile product |
| CN104338412A (en) * | 2013-08-07 | 2015-02-11 | 中国石油化工股份有限公司 | Packing method of pressure swing adsorption tower |
| CN107778198A (en) * | 2016-08-29 | 2018-03-09 | 中国石油化工股份有限公司 | The processing method of the acrylonitrile of acrylamide is prepared suitable for bioanalysis |
| CN107778197A (en) * | 2016-08-29 | 2018-03-09 | 中国石油化工股份有限公司 | A kind of method of purification of acrylonitrile |
| CN108079742A (en) * | 2018-01-30 | 2018-05-29 | 重庆坤泉环境工程有限公司 | Gas mercury adsorbent equipment and its system |
| CN112076606A (en) * | 2020-08-07 | 2020-12-15 | 百通达科技（东台）有限公司 | Waste gas treatment method in polyvinyl chloride glove preparation process |
| CN112334223A (en) * | 2018-07-11 | 2021-02-05 | 乔治洛德方法研究和开发液化空气有限公司 | Device for limiting or eliminating the migration of particles between two layers |
| CN112334224A (en) * | 2018-07-11 | 2021-02-05 | 乔治洛德方法研究和开发液化空气有限公司 | Device made of fabric for limiting or preventing the migration of particles between two layers |
-
2008
- 2008-02-01 CN CNU2008200553226U patent/CN201180119Y/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101992000A (en) * | 2009-08-25 | 2011-03-30 | 付华峰 | Novel tannin cured chitosan heavy metal ion dynamic absorption device and preparation method thereof |
| CN102199106A (en) * | 2010-03-26 | 2011-09-28 | 中国石油化工股份有限公司 | Method for removing peroxide in acrylonitrile |
| CN103360280A (en) * | 2013-07-19 | 2013-10-23 | 中国海洋石油总公司 | Adsorption purification method for high-purity butanedinitrile |
| CN104338412A (en) * | 2013-08-07 | 2015-02-11 | 中国石油化工股份有限公司 | Packing method of pressure swing adsorption tower |
| CN103446801A (en) * | 2013-08-26 | 2013-12-18 | 中国石油集团东北炼化工程有限公司吉林设计院 | Adsorption device for removing peroxides from acrylonitrile product |
| CN107778197A (en) * | 2016-08-29 | 2018-03-09 | 中国石油化工股份有限公司 | A kind of method of purification of acrylonitrile |
| CN107778198A (en) * | 2016-08-29 | 2018-03-09 | 中国石油化工股份有限公司 | The processing method of the acrylonitrile of acrylamide is prepared suitable for bioanalysis |
| CN108079742A (en) * | 2018-01-30 | 2018-05-29 | 重庆坤泉环境工程有限公司 | Gas mercury adsorbent equipment and its system |
| CN112334223A (en) * | 2018-07-11 | 2021-02-05 | 乔治洛德方法研究和开发液化空气有限公司 | Device for limiting or eliminating the migration of particles between two layers |
| CN112334224A (en) * | 2018-07-11 | 2021-02-05 | 乔治洛德方法研究和开发液化空气有限公司 | Device made of fabric for limiting or preventing the migration of particles between two layers |
| CN112334223B (en) * | 2018-07-11 | 2022-11-08 | 乔治洛德方法研究和开发液化空气有限公司 | Device for limiting or eliminating the migration of particles between two layers |
| CN112334224B (en) * | 2018-07-11 | 2022-11-22 | 乔治洛德方法研究和开发液化空气有限公司 | Device made of fabric for limiting or preventing the migration of particles between two layers |
| CN112076606A (en) * | 2020-08-07 | 2020-12-15 | 百通达科技（东台）有限公司 | Waste gas treatment method in polyvinyl chloride glove preparation process |
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| GR01 | Patent grant | ||
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Granted publication date: 20090114 |