CN102503914A - Tetrahydrofuran tail gas safe recovery device - Google Patents
Tetrahydrofuran tail gas safe recovery device Download PDFInfo
- Publication number
- CN102503914A CN102503914A CN2011103420129A CN201110342012A CN102503914A CN 102503914 A CN102503914 A CN 102503914A CN 2011103420129 A CN2011103420129 A CN 2011103420129A CN 201110342012 A CN201110342012 A CN 201110342012A CN 102503914 A CN102503914 A CN 102503914A
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- soft water
- tail gas
- tetrahydrofuran
- water spray
- pipe
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Abstract
The invention discloses a tetrahydrofuran tail gas safe recovery device, belonging to the field of chemical machinery. A tail gas recovery pipeline which collects the tail gas at the tops of all containers is communicated with an ejector; the outlet of the ejector is communicated with the top of a soft water spray irrigator beneath the ejector; a water pipe connected with a soft water pump is arranged at the bottom of the soft water spray irrigator; and an outlet pipe of the soft water pump is connected with the ejector. A soft water replenishment pipe is arranged at one side of the top of the soft water spray irrigator, and a tail gas discharge pipe of a flame arrester is arranged at the other side of the top of the soft water spray irrigator. A soft water overflow pipe connected with a gathering tank is arranged at the upper part of the soft water spray irrigator. The tetrahydrofuran tail gas safe recovery device finally enables the soft water into which tetrahydrofuran is dissolved to overflow to the gathering tank, and after being separated and purified, the tetrahydrofuran can be recycled. The material consumption is effectively reduced, and at the same time the safety control of the production devices, the workers and the equipment in the factory is enhanced.
Description
Technical field: the present invention relates to the device for recovering tail gas in a kind of synthon production process, belong to chemical machinery field.
Background technology: in the polybutylene terephthalate production process, reaction generates THF (THF) and water.THF belongs to volatile liquid, and its steam contacts with air, can form explosive mixture, meets naked light, Gao Re and strong oxidizer and is prone to cause burning, ingress of air or under illumination condition, can generate the superoxide of potential explosion hazard.In equipment, assembles to produce and explode for the steam that do not coagulate that prevents to contain THF, each condensing surface and container containing top are equipped with the gas sampling pipeline, at last waste gas are carried out torch burning.So, the THF in the waste gas just can not be by good collection and utilization.
Summary of the invention: the purpose of this invention is to provide a kind of THF tail gas safety retrieving arrangement.Utilize this retrieving arrangement, not only eliminated potential safety hazard, also can THF be recycled, reduce production costs.For the purpose that realizes that THF tail gas safety reclaims; Adopted such technical scheme: THF tail gas safety retrieving arrangement; Be made up of tail gas recycle pipeline, holding tank and water pump, the tail gas recycle pipeline of collecting each container top tail gas is communicated with injector, the soft water spray abhiseca portion below the injector outlet is communicated with; The soft water spray is irritated the bottom has water pipe to connect softened water pump, and the rising pipe of softened water pump connects injector.One side has soft water supply pipe in soft water spray abhiseca portion, and opposite side has the exhaust pipe that spark arrester is installed.There is a soft water upflow tube to connect holding tank on soft water sprayed tank top.
The soft water overflow that THF tail gas safety retrieving arrangement will dissolve THF at last through separating and purifying, can be carried out second stage employ to holding tank.Effectively reduce supplies consumption, improved the safety control of production equipment and site personnel's equipment simultaneously.
Description of drawings: Fig. 1 is the structural representation of THF tail gas safety retrieving arrangement.
Embodiment: be further described below in conjunction with accompanying drawing.
Shown in accompanying drawing, the tail gas recycle pipeline 7 of collecting each production unit container top tail gas is communicated with the trunnion of injectors 5, when current suck tail gas from the out-of-date negative pressure that forms at trunnion of trunnion high speed flow, and together sprays with the water smoke of injector.The injector outlet is communicated with following soft water spray and irritates 4 tops, and the water smoke of injector and tail gas get in the filling of soft water spray.THF in the waste gas is very easily water-soluble, so the THF in the waste gas all is dissolved in the water.Waste gas through water washing concentrates on the tank top, basically no longer contains THF.The waste gas of removing THF enters atmosphere through the exhaust pipe that sprays abhiseca portion installation spark arrester 6.The soft water spray is irritated the bottom has water pipe to connect softened water pump 2, and the rising pipe of softened water pump connects injector.Softened water pump makes the soft water in the sprayed tank dissolve THF circularly.Because in the polybutylene terephthalate production process; The tail gas that reaction generates also contains water; The water yield in jar can increase, and the soft water that has dissolved THF passes through the extremely thick THF holding tank 3 of soft water upflow tube overflow on soft water sprayed tank top, and then further with the THF Separation and Recovery.One side has soft water supply pipe 1 at soft water sprayed tank top, can replenish the deficiency of jar interior water yield.
Claims (1)
1. THF tail gas safety retrieving arrangement; Form by tail gas recycle pipeline, holding tank and water pump; It is characterized in that: the tail gas recycle pipeline (7) of collecting each container top tail gas is communicated with injector (5); Soft water spray below the injector outlet is communicated with is irritated (4) top, and the soft water spray is irritated the bottom has water pipe to connect softened water pump (2), and the rising pipe of softened water pump connects injector; One side has soft water supply pipe (1) in soft water spray abhiseca portion, and opposite side has the exhaust pipe of installation group firearm (6); There is a soft water upflow tube to connect holding tank (3) on soft water sprayed tank top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103420129A CN102503914A (en) | 2011-10-23 | 2011-10-23 | Tetrahydrofuran tail gas safe recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103420129A CN102503914A (en) | 2011-10-23 | 2011-10-23 | Tetrahydrofuran tail gas safe recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102503914A true CN102503914A (en) | 2012-06-20 |
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ID=46216060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103420129A Pending CN102503914A (en) | 2011-10-23 | 2011-10-23 | Tetrahydrofuran tail gas safe recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102503914A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601705A (en) * | 2013-11-08 | 2014-02-26 | 盐城科菲特生化技术有限公司 | Tetrahydrofuran rectification method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101721887A (en) * | 2008-10-30 | 2010-06-09 | 张海兵 | Rotary atomization spray tower |
| CN201735306U (en) * | 2010-03-18 | 2011-02-09 | 南京蓝星化工新材料有限公司 | Tetrahydrofuran tail gas recovering device |
-
2011
- 2011-10-23 CN CN2011103420129A patent/CN102503914A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101721887A (en) * | 2008-10-30 | 2010-06-09 | 张海兵 | Rotary atomization spray tower |
| CN201735306U (en) * | 2010-03-18 | 2011-02-09 | 南京蓝星化工新材料有限公司 | Tetrahydrofuran tail gas recovering device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601705A (en) * | 2013-11-08 | 2014-02-26 | 盐城科菲特生化技术有限公司 | Tetrahydrofuran rectification method |
| CN103601705B (en) * | 2013-11-08 | 2015-05-20 | 盐城科菲特生化技术有限公司 | Tetrahydrofuran rectification method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120620 |