CN204779422U - Crotonaldehyde rectifier unit - Google Patents
Crotonaldehyde rectifier unit Download PDFInfo
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- CN204779422U CN204779422U CN201520474691.9U CN201520474691U CN204779422U CN 204779422 U CN204779422 U CN 204779422U CN 201520474691 U CN201520474691 U CN 201520474691U CN 204779422 U CN204779422 U CN 204779422U
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- crotonaldehyde
- distillates
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- still liquid
- condenser
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Abstract
The utility model discloses a crotonaldehyde rectifier unit, including retrieving rectifying column and crotonaldehyde filled tower, the bottom of retrieving the rectifying column is connected with the reboiler, and the reboiler is connected with cauldron liquid cooler, and cauldron liquid cooler is connected with the cauldron cistern, and the cauldron cistern is connected with the cauldron liquid pump, and the cauldron liquid pump is connected with middle groove of cauldron liquid and acetic acid raffinate groove, retrieving the rectifying column top and being connected with the condenser of distilling off, the condenser of distilling off is connected with the groove of distilling off, and the groove of distilling off is connected with the pump of distilling off, and the pump of distilling off is connected with vinyl acetate accumulator and crotonaldehyde storage tank, and the crotonaldehyde storage tank is connected with the crotonaldehyde quantizer to be connected, and the crotonaldehyde quantizer is connected with the crotonaldehyde and sees the pump off, and the crotonaldehyde storage tank is connected with the crotonaldehyde filled tower, the bottom of crotonaldehyde filled tower also is connected with the reboiler, distils off and be connected with the crotonaldehyde condenser of distilling off in the top of crotonaldehyde filled tower, and the crotonaldehyde is distilled off the condenser and is connected with the crotonaldehyde jar of distilling off, and the crotonaldehyde is distilled off the jar and is connected with the crotonaldehyde pump of distilling off.
Description
Technical field
The utility model relates to water distilling apparatus, specifically, relates to a kind of crotonaldehyde rectifier unit.
Background technology
Since the seventies, the Demand in World Market amount of crotonaldehyde is on a declining curve, mainly with crotonaldehyde produce butyraldehyde-n, the technique of butanols replaces by the oxidation style that cost is lower gradually.Oxidation style technique is under the katalysis of transition metal, and propylene, carbon monoxide and hydrogen reaction are generated the mixture of butyraldehyde and isobutyric aldehyde, isobutylaldehyde conversion becomes corresponding alcohol subsequently.But in developing country, also have larger market with crotonaldehyde coproduction butyraldehyde, butanols.
Sorbic Acid is widely used in foodstuff additive existing more than 40 year, at present large 30,000 tons of year volume of production and marketing in the world, and market is still in growth, and Asian countries's rate of increase that economic rapid growth and standard of living improve rapidly is the highest.Western developed country consumes Sorbic Acid 15-40g/a per capita, and the developing countries such as China are about 2g/a, and market potential is huge.The demand of its intermediate raw material crotonaldehyde also increases thereupon.
The producer of current domestic production Sorbic Acid mainly contains the producers such as Nanning foodstuff additive factory of Chemical Group company limited, Nantong Acetic Acid Chemical Works, and the former has unique producer of crotonaldehyde production equipment, thus the advantage had on raw material, cost, product has more competitive power.
Due to the production equipment full production of domestic crotonaldehyde, the breach of crotonaldehyde is comparatively large, and thus all there is new upper purpose of producing crotonaldehyde device various places.But consider the problems such as the Grasping level of Technology, raw material supply, cost keeping, safety and environmental protection, most optimum distribution of resources, should base oneself upon on old device Dig potential, make it to play best economical, societal benefits.
How to improve the quality product of crotonaldehyde further, reduce acetaldehyde and energy consumption, better administer waste water, waste gas is the long duration problem that will inquire into and solve from now on.Simultaneously further the derived product of exploitation crotonaldehyde is the key subjects that vinyl acetate between to for plastic industry will face from now on, crotonaldehyde produce and application cause in the ascendant, highly promising.
For the problem in correlation technique, at present effective solution is not yet proposed.
Utility model content
For the above-mentioned technical problem in correlation technique, the utility model proposes a kind of crotonaldehyde rectifier unit, the not high shakiness of the product purity of producing crotonaldehyde in vinyl acetate production process can be solved, quality product do not reach user require, the inefficient problem of production equipment, crotonaldehyde product purity, production efficiency can be significantly improved.
For realizing above-mentioned technical purpose, the technical solution of the utility model is achieved in that
A kind of crotonaldehyde rectifier unit, comprise and reclaim rectifying tower and crotonaldehyde packing tower, the bottom of described recovery rectifying tower is connected with reboiler, described reboiler is connected with still liquid water cooler, described still liquid water cooler is connected with still liquid bath, described still liquid bath is connected with still liquid pump, and described still liquid pump is connected with still liquid medial launder and acetic acid raffinate groove; Described recovery rectifying tower top is connected with and distillates condenser, the described condenser that distillates is connected with and distillates groove, the described groove that distillates is connected with and distillates pump, the described pump that distillates is connected with vinyl acetate between to for plastic accumulator tank and crotonaldehyde storage tank, described crotonaldehyde storage tank is connected with crotonaldehyde quantizer and connects, described crotonaldehyde quantizer is connected with crotonaldehyde and sends pump, and described crotonaldehyde storage tank is connected with crotonaldehyde packing tower; The bottom of described crotonaldehyde packing tower is also connected with described reboiler, the top of described crotonaldehyde packing tower distillates and is connected with crotonaldehyde and distillates condenser, described crotonaldehyde distillates condenser and is connected with crotonaldehyde and distillates tank, described crotonaldehyde distillates tank and is connected with crotonaldehyde and distillates pump, and described crotonaldehyde distillates pump and is connected with crotonaldehyde packing tower and crotonaldehyde storage tank.
Further, described reboiler is heated by steam-heated mode.
The beneficial effects of the utility model: the vinyl acetate between to for plastic in the recyclable crotonaldehyde of the utility model and acetic acid, reduce COD and PH in crotonaldehyde waste water, alleviate treatment pressure of sewage, rectifying tower is without the need to pressurized operation, facility investment is simultaneously few, energy consumption, consume little, significantly improve crotonaldehyde product purity, production efficiency, the content of crotonaldehyde in effective minimizing system.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the crotonaldehyde rectifier unit according to the utility model embodiment.
In figure:
1, rectifying tower is reclaimed; 2, condenser is distillated; 3, groove is distillated; 4, pump is distillated; 5, reboiler; 6, still liquid water cooler; 7, still liquid bath; 8, still liquid pump; 9, crotonaldehyde storage tank; 10, crotonaldehyde stoste groove; 11, crotonaldehyde charge pump; 12, crotonaldehyde packing tower; 13, crotonaldehyde distillates condenser; 14, crotonaldehyde distillates tank; 15, crotonaldehyde distillates pump; 16, crotonaldehyde packing tower reboiler; 17, crotonaldehyde quantizer; 18, crotonaldehyde sends pump.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain, all belongs to the scope of the utility model protection.
As shown in Figure 1, a kind of crotonaldehyde rectifier unit according to the utility model embodiment, comprise and reclaim rectifying tower 1 and crotonaldehyde packing tower 12, the bottom of described recovery rectifying tower 1 is connected with reboiler 5, described reboiler 5 is connected with still liquid water cooler 6, described still liquid water cooler 6 is connected with still liquid bath 7, and described still liquid bath 7 is connected with still liquid pump 8, and described still liquid pump 8 is connected with still liquid medial launder and acetic acid raffinate groove; Described recovery rectifying tower 1 top is connected with and distillates condenser 2, the described condenser 2 that distillates is connected with and distillates groove 3, the described groove 3 that distillates is connected with and distillates pump 4, the described pump 4 that distillates is connected with vinyl acetate between to for plastic accumulator tank and crotonaldehyde storage tank, described crotonaldehyde storage tank is connected with crotonaldehyde quantizer 17 and connects, described crotonaldehyde quantizer 17 is connected with crotonaldehyde and sends pump 18, and described crotonaldehyde storage tank is connected with crotonaldehyde packing tower 12; The bottom of described crotonaldehyde packing tower 12 is also connected with described reboiler 5, the top of described crotonaldehyde packing tower 12 distillates and is connected with crotonaldehyde and distillates condenser 13, described crotonaldehyde distillates condenser 13 and is connected with crotonaldehyde and distillates tank 14, described crotonaldehyde distillates tank 14 and is connected with crotonaldehyde and distillates pump 15, and described crotonaldehyde distillates pump 15 and is connected with crotonaldehyde packing tower 12 and crotonaldehyde storage tank.
In one embodiment, described reboiler 5 is heated by steam-heated mode.
Conveniently understand technique scheme of the present utility model, below by way of in concrete use-pattern, technique scheme of the present utility model is described in detail.
When specifically using, according to crotonaldehyde rectifier unit described in the utility model, the more rectifying tower 1 that namely reclaims of rectifying six tower distillate component feeds in raw material, for fully reclaiming vinyl acetate between to for plastic in distillate and acetic acid, reclaim rectifying tower 1 and need open twice, first pass top gas phase distillates into distillating condenser 2, phlegma enters to distillate groove 3, pass through control temperature, vinyl acetate between to for plastic will be distillated and deliver to vinyl acetate between to for plastic accumulator tank by distillating pump 4, reclaim rectifying tower 1 still liquid to cool from reboiler 5 still liquid through still liquid water cooler 6, enter still liquid bath 7, deliver to still liquid medial launder by still liquid pump 8 and open second time feeding in raw material as reclaiming rectifying tower 1, second time recovery rectifying tower 1 top gas phase distillates into distillating condenser 2, phlegma enters to distillate groove 3, pass through control temperature, crotonaldehyde will be distillated and send crotonaldehyde storage tank 9 by distillating pump 4, reclaim rectifying tower 1 still liquid to cool from reboiler 5 still liquid through still liquid water cooler 6, enter still liquid bath 7, deliver to acetic acid raffinate groove by still liquid pump 8.
Crotonaldehyde storage tank 9, crotonaldehyde stoste groove 10, crotonaldehyde quantizer 17 lower aqueous layer feeds in raw material to crotonaldehyde packing tower 12 by crotonaldehyde charge pump 11, crotonaldehyde reboiler 16 passes into steam heating, top gaseous phase distillates and distillates condenser 13 into crotonaldehyde, phlegma enters crotonaldehyde layering tank 14, after layering tank 14 layering, top crotonaldehyde distillates pump 15 through crotonaldehyde and send crotonaldehyde storage tank 9, lower aqueous layer distillates pump 15 through crotonaldehyde and is back to crotonaldehyde packing tower 12, crotonaldehyde packing tower 12 still liquid can drain into sink drainage process by crotonaldehyde reboiler 16 and also can deliver to recovery and do extraction water.
In sum, by means of technique scheme of the present utility model, vinyl acetate between to for plastic in the recyclable crotonaldehyde of the utility model and acetic acid, reduce COD and PH in crotonaldehyde waste water, alleviate treatment pressure of sewage, rectifying tower is without the need to pressurized operation, facility investment is simultaneously few, energy consumption, consume little, significantly improve crotonaldehyde product purity, production efficiency, the content of crotonaldehyde in effective minimizing system.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (2)
1. a crotonaldehyde rectifier unit, it is characterized in that, comprise and reclaim rectifying tower (1) and crotonaldehyde packing tower (12), it is characterized in that: the bottom of described recovery rectifying tower (1) is connected with reboiler (5), described reboiler (5) is connected with still liquid water cooler (6), described still liquid water cooler (6) is connected with still liquid bath (7), and described still liquid bath (7) is connected with still liquid pump (8), and described still liquid pump (8) is connected with still liquid medial launder and acetic acid raffinate groove; Described recovery rectifying tower (1) top is connected with and distillates condenser (2), the described condenser (2) that distillates is connected with and distillates groove (3), the described groove (3) that distillates is connected with and distillates pump (4), the described pump (4) that distillates is connected with vinyl acetate between to for plastic accumulator tank and crotonaldehyde storage tank, described crotonaldehyde storage tank is connected with crotonaldehyde quantizer (17) and connects, described crotonaldehyde quantizer (17) is connected with crotonaldehyde and sends pump (18), and described crotonaldehyde storage tank is connected with crotonaldehyde packing tower (12); The bottom of described crotonaldehyde packing tower (12) is also connected with described reboiler (5), the top of described crotonaldehyde packing tower (12) distillates and is connected with crotonaldehyde and distillates condenser (13), described crotonaldehyde distillates condenser (13) and is connected with crotonaldehyde and distillates tank (14), described crotonaldehyde distillates tank (14) and is connected with crotonaldehyde and distillates pump (15), and described crotonaldehyde distillates pump (15) and is connected with crotonaldehyde packing tower (12) and crotonaldehyde storage tank.
2. crotonaldehyde rectifier unit according to claim 1, is characterized in that, described reboiler (5) is heated by steam-heated mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520474691.9U CN204779422U (en) | 2015-06-30 | 2015-06-30 | Crotonaldehyde rectifier unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520474691.9U CN204779422U (en) | 2015-06-30 | 2015-06-30 | Crotonaldehyde rectifier unit |
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| CN204779422U true CN204779422U (en) | 2015-11-18 |
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| CN201520474691.9U Active CN204779422U (en) | 2015-06-30 | 2015-06-30 | Crotonaldehyde rectifier unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106621437A (en) * | 2016-10-21 | 2017-05-10 | 中国石化长城能源化工（宁夏）有限公司 | Method for effectively improving separation effect of fourth polymerization tower |
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2015
- 2015-06-30 CN CN201520474691.9U patent/CN204779422U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106621437A (en) * | 2016-10-21 | 2017-05-10 | 中国石化长城能源化工（宁夏）有限公司 | Method for effectively improving separation effect of fourth polymerization tower |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201221 Address after: 016014 Mengxi high tech Industrial Park, etoke banner, Ordos City, Inner Mongolia Autonomous Region Patentee after: INNER MONGOLIA SHUANGXIN ENVIRONMENT-FRIENDLY MATERIAL Co.,Ltd. Address before: 016014 Mengxi high tech Industrial Park, etoke banner, Ordos City, Inner Mongolia Autonomous Region Patentee before: INNER MONGOLIA SHUANGXIN ENVIRONMENT-FRIENDLY MATERIAL Co.,Ltd. Patentee before: Bai Zhanrong |